1595 lines
65 KiB
C++
1595 lines
65 KiB
C++
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/*
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* Vulkan glTF model and texture loading class based on tinyglTF (https://github.com/syoyo/tinygltf)
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*
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* Copyright (C) 2018 by Sascha Willems - www.saschawillems.de
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*
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* This code is licensed under the MIT license (MIT) (http://opensource.org/licenses/MIT)
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*/
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#define TINYGLTF_IMPLEMENTATION
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#define STB_IMAGE_IMPLEMENTATION
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#define TINYGLTF_NO_STB_IMAGE_WRITE
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#include "VulkanglTFModel.h"
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VkDescriptorSetLayout vkglTF::descriptorSetLayoutImage = VK_NULL_HANDLE;
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VkDescriptorSetLayout vkglTF::descriptorSetLayoutUbo = VK_NULL_HANDLE;
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VkMemoryPropertyFlags vkglTF::memoryPropertyFlags = 0;
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uint32_t vkglTF::descriptorBindingFlags = vkglTF::DescriptorBindingFlags::ImageBaseColor;
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/*
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We use a custom image loading function with tinyglTF, so we can do custom stuff loading ktx textures
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*/
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bool loadImageDataFunc(tinygltf::Image* image, const int imageIndex, std::string* error, std::string* warning, int req_width, int req_height, const unsigned char* bytes, int size, void* userData)
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{
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// KTX files will be handled by our own code
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if (image->uri.find_last_of(".") != std::string::npos) {
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if (image->uri.substr(image->uri.find_last_of(".") + 1) == "ktx") {
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return true;
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}
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}
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return tinygltf::LoadImageData(image, imageIndex, error, warning, req_width, req_height, bytes, size, userData);
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}
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bool loadImageDataFuncEmpty(tinygltf::Image* image, const int imageIndex, std::string* error, std::string* warning, int req_width, int req_height, const unsigned char* bytes, int size, void* userData)
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{
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// This function will be used for samples that don't require images to be loaded
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return true;
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}
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/*
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glTF texture loading class
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*/
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void vkglTF::Texture::updateDescriptor()
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{
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descriptor.sampler = sampler;
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descriptor.imageView = view;
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descriptor.imageLayout = imageLayout;
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}
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void vkglTF::Texture::destroy()
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{
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if (device)
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{
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vkDestroyImageView(device->logicalDevice, view, nullptr);
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vkDestroyImage(device->logicalDevice, image, nullptr);
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vkFreeMemory(device->logicalDevice, deviceMemory, nullptr);
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vkDestroySampler(device->logicalDevice, sampler, nullptr);
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}
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}
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void vkglTF::Texture::fromglTfImage(tinygltf::Image &gltfimage, std::string path, vks::VulkanDevice *device, VkQueue copyQueue)
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{
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this->device = device;
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bool isKtx = false;
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// Image points to an external ktx file
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if (gltfimage.uri.find_last_of(".") != std::string::npos) {
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if (gltfimage.uri.substr(gltfimage.uri.find_last_of(".") + 1) == "ktx") {
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isKtx = true;
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}
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}
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VkFormat format;
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if (!isKtx) {
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// Texture was loaded using STB_Image
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unsigned char* buffer = nullptr;
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VkDeviceSize bufferSize = 0;
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bool deleteBuffer = false;
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if (gltfimage.component == 3) {
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// Most devices don't support RGB only on Vulkan so convert if necessary
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// TODO: Check actual format support and transform only if required
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bufferSize = gltfimage.width * gltfimage.height * 4;
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buffer = new unsigned char[bufferSize];
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unsigned char* rgba = buffer;
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unsigned char* rgb = &gltfimage.image[0];
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for (size_t i = 0; i < gltfimage.width * gltfimage.height; ++i) {
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for (int32_t j = 0; j < 3; ++j) {
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rgba[j] = rgb[j];
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}
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rgba += 4;
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rgb += 3;
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}
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deleteBuffer = true;
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}
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else {
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buffer = &gltfimage.image[0];
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bufferSize = gltfimage.image.size();
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}
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format = VK_FORMAT_R8G8B8A8_UNORM;
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VkFormatProperties formatProperties;
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width = gltfimage.width;
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height = gltfimage.height;
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mipLevels = static_cast<uint32_t>(floor(log2(std::max(width, height))) + 1.0);
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vkGetPhysicalDeviceFormatProperties(device->physicalDevice, format, &formatProperties);
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assert(formatProperties.optimalTilingFeatures & VK_FORMAT_FEATURE_BLIT_SRC_BIT);
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assert(formatProperties.optimalTilingFeatures & VK_FORMAT_FEATURE_BLIT_DST_BIT);
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VkMemoryAllocateInfo memAllocInfo{};
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memAllocInfo.sType = VK_STRUCTURE_TYPE_MEMORY_ALLOCATE_INFO;
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VkMemoryRequirements memReqs{};
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VkBuffer stagingBuffer;
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VkDeviceMemory stagingMemory;
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VkBufferCreateInfo bufferCreateInfo{};
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bufferCreateInfo.sType = VK_STRUCTURE_TYPE_BUFFER_CREATE_INFO;
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bufferCreateInfo.size = bufferSize;
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bufferCreateInfo.usage = VK_BUFFER_USAGE_TRANSFER_SRC_BIT;
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bufferCreateInfo.sharingMode = VK_SHARING_MODE_EXCLUSIVE;
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VK_CHECK_RESULT(vkCreateBuffer(device->logicalDevice, &bufferCreateInfo, nullptr, &stagingBuffer));
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vkGetBufferMemoryRequirements(device->logicalDevice, stagingBuffer, &memReqs);
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memAllocInfo.allocationSize = memReqs.size;
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memAllocInfo.memoryTypeIndex = device->getMemoryType(memReqs.memoryTypeBits, VK_MEMORY_PROPERTY_HOST_VISIBLE_BIT | VK_MEMORY_PROPERTY_HOST_COHERENT_BIT);
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VK_CHECK_RESULT(vkAllocateMemory(device->logicalDevice, &memAllocInfo, nullptr, &stagingMemory));
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VK_CHECK_RESULT(vkBindBufferMemory(device->logicalDevice, stagingBuffer, stagingMemory, 0));
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uint8_t* data;
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VK_CHECK_RESULT(vkMapMemory(device->logicalDevice, stagingMemory, 0, memReqs.size, 0, (void**)&data));
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memcpy(data, buffer, bufferSize);
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vkUnmapMemory(device->logicalDevice, stagingMemory);
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VkImageCreateInfo imageCreateInfo{};
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imageCreateInfo.sType = VK_STRUCTURE_TYPE_IMAGE_CREATE_INFO;
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imageCreateInfo.imageType = VK_IMAGE_TYPE_2D;
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imageCreateInfo.format = format;
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imageCreateInfo.mipLevels = mipLevels;
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imageCreateInfo.arrayLayers = 1;
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imageCreateInfo.samples = VK_SAMPLE_COUNT_1_BIT;
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imageCreateInfo.tiling = VK_IMAGE_TILING_OPTIMAL;
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imageCreateInfo.usage = VK_IMAGE_USAGE_SAMPLED_BIT;
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imageCreateInfo.sharingMode = VK_SHARING_MODE_EXCLUSIVE;
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imageCreateInfo.initialLayout = VK_IMAGE_LAYOUT_UNDEFINED;
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imageCreateInfo.extent = { width, height, 1 };
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imageCreateInfo.usage = VK_IMAGE_USAGE_TRANSFER_DST_BIT | VK_IMAGE_USAGE_TRANSFER_SRC_BIT | VK_IMAGE_USAGE_SAMPLED_BIT;
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VK_CHECK_RESULT(vkCreateImage(device->logicalDevice, &imageCreateInfo, nullptr, &image));
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vkGetImageMemoryRequirements(device->logicalDevice, image, &memReqs);
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memAllocInfo.allocationSize = memReqs.size;
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memAllocInfo.memoryTypeIndex = device->getMemoryType(memReqs.memoryTypeBits, VK_MEMORY_PROPERTY_DEVICE_LOCAL_BIT);
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VK_CHECK_RESULT(vkAllocateMemory(device->logicalDevice, &memAllocInfo, nullptr, &deviceMemory));
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VK_CHECK_RESULT(vkBindImageMemory(device->logicalDevice, image, deviceMemory, 0));
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VkCommandBuffer copyCmd = device->createCommandBuffer(VK_COMMAND_BUFFER_LEVEL_PRIMARY, true);
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VkImageSubresourceRange subresourceRange = {};
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subresourceRange.aspectMask = VK_IMAGE_ASPECT_COLOR_BIT;
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subresourceRange.levelCount = 1;
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subresourceRange.layerCount = 1;
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{
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VkImageMemoryBarrier imageMemoryBarrier{};
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imageMemoryBarrier.sType = VK_STRUCTURE_TYPE_IMAGE_MEMORY_BARRIER;
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imageMemoryBarrier.oldLayout = VK_IMAGE_LAYOUT_UNDEFINED;
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imageMemoryBarrier.newLayout = VK_IMAGE_LAYOUT_TRANSFER_DST_OPTIMAL;
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imageMemoryBarrier.srcAccessMask = 0;
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imageMemoryBarrier.dstAccessMask = VK_ACCESS_TRANSFER_WRITE_BIT;
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imageMemoryBarrier.image = image;
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imageMemoryBarrier.subresourceRange = subresourceRange;
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vkCmdPipelineBarrier(copyCmd, VK_PIPELINE_STAGE_ALL_COMMANDS_BIT, VK_PIPELINE_STAGE_ALL_COMMANDS_BIT, 0, 0, nullptr, 0, nullptr, 1, &imageMemoryBarrier);
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}
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VkBufferImageCopy bufferCopyRegion = {};
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bufferCopyRegion.imageSubresource.aspectMask = VK_IMAGE_ASPECT_COLOR_BIT;
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bufferCopyRegion.imageSubresource.mipLevel = 0;
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bufferCopyRegion.imageSubresource.baseArrayLayer = 0;
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bufferCopyRegion.imageSubresource.layerCount = 1;
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bufferCopyRegion.imageExtent.width = width;
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bufferCopyRegion.imageExtent.height = height;
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bufferCopyRegion.imageExtent.depth = 1;
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vkCmdCopyBufferToImage(copyCmd, stagingBuffer, image, VK_IMAGE_LAYOUT_TRANSFER_DST_OPTIMAL, 1, &bufferCopyRegion);
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{
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VkImageMemoryBarrier imageMemoryBarrier{};
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imageMemoryBarrier.sType = VK_STRUCTURE_TYPE_IMAGE_MEMORY_BARRIER;
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imageMemoryBarrier.oldLayout = VK_IMAGE_LAYOUT_TRANSFER_DST_OPTIMAL;
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imageMemoryBarrier.newLayout = VK_IMAGE_LAYOUT_TRANSFER_SRC_OPTIMAL;
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imageMemoryBarrier.srcAccessMask = VK_ACCESS_TRANSFER_WRITE_BIT;
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imageMemoryBarrier.dstAccessMask = VK_ACCESS_TRANSFER_READ_BIT;
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imageMemoryBarrier.image = image;
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imageMemoryBarrier.subresourceRange = subresourceRange;
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vkCmdPipelineBarrier(copyCmd, VK_PIPELINE_STAGE_ALL_COMMANDS_BIT, VK_PIPELINE_STAGE_ALL_COMMANDS_BIT, 0, 0, nullptr, 0, nullptr, 1, &imageMemoryBarrier);
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}
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device->flushCommandBuffer(copyCmd, copyQueue, true);
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vkFreeMemory(device->logicalDevice, stagingMemory, nullptr);
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vkDestroyBuffer(device->logicalDevice, stagingBuffer, nullptr);
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// Generate the mip chain (glTF uses jpg and png, so we need to create this manually)
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VkCommandBuffer blitCmd = device->createCommandBuffer(VK_COMMAND_BUFFER_LEVEL_PRIMARY, true);
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for (uint32_t i = 1; i < mipLevels; i++) {
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VkImageBlit imageBlit{};
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imageBlit.srcSubresource.aspectMask = VK_IMAGE_ASPECT_COLOR_BIT;
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imageBlit.srcSubresource.layerCount = 1;
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imageBlit.srcSubresource.mipLevel = i - 1;
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imageBlit.srcOffsets[1].x = int32_t(width >> (i - 1));
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imageBlit.srcOffsets[1].y = int32_t(height >> (i - 1));
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imageBlit.srcOffsets[1].z = 1;
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imageBlit.dstSubresource.aspectMask = VK_IMAGE_ASPECT_COLOR_BIT;
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imageBlit.dstSubresource.layerCount = 1;
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imageBlit.dstSubresource.mipLevel = i;
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imageBlit.dstOffsets[1].x = int32_t(width >> i);
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imageBlit.dstOffsets[1].y = int32_t(height >> i);
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imageBlit.dstOffsets[1].z = 1;
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VkImageSubresourceRange mipSubRange = {};
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mipSubRange.aspectMask = VK_IMAGE_ASPECT_COLOR_BIT;
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mipSubRange.baseMipLevel = i;
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mipSubRange.levelCount = 1;
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mipSubRange.layerCount = 1;
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{
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VkImageMemoryBarrier imageMemoryBarrier{};
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imageMemoryBarrier.sType = VK_STRUCTURE_TYPE_IMAGE_MEMORY_BARRIER;
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imageMemoryBarrier.oldLayout = VK_IMAGE_LAYOUT_UNDEFINED;
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imageMemoryBarrier.newLayout = VK_IMAGE_LAYOUT_TRANSFER_DST_OPTIMAL;
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imageMemoryBarrier.srcAccessMask = 0;
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imageMemoryBarrier.dstAccessMask = VK_ACCESS_TRANSFER_WRITE_BIT;
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imageMemoryBarrier.image = image;
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imageMemoryBarrier.subresourceRange = mipSubRange;
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vkCmdPipelineBarrier(blitCmd, VK_PIPELINE_STAGE_TRANSFER_BIT, VK_PIPELINE_STAGE_TRANSFER_BIT, 0, 0, nullptr, 0, nullptr, 1, &imageMemoryBarrier);
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}
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vkCmdBlitImage(blitCmd, image, VK_IMAGE_LAYOUT_TRANSFER_SRC_OPTIMAL, image, VK_IMAGE_LAYOUT_TRANSFER_DST_OPTIMAL, 1, &imageBlit, VK_FILTER_LINEAR);
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{
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VkImageMemoryBarrier imageMemoryBarrier{};
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imageMemoryBarrier.sType = VK_STRUCTURE_TYPE_IMAGE_MEMORY_BARRIER;
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imageMemoryBarrier.oldLayout = VK_IMAGE_LAYOUT_TRANSFER_DST_OPTIMAL;
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imageMemoryBarrier.newLayout = VK_IMAGE_LAYOUT_TRANSFER_SRC_OPTIMAL;
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imageMemoryBarrier.srcAccessMask = VK_ACCESS_TRANSFER_WRITE_BIT;
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imageMemoryBarrier.dstAccessMask = VK_ACCESS_TRANSFER_READ_BIT;
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imageMemoryBarrier.image = image;
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imageMemoryBarrier.subresourceRange = mipSubRange;
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vkCmdPipelineBarrier(blitCmd, VK_PIPELINE_STAGE_TRANSFER_BIT, VK_PIPELINE_STAGE_TRANSFER_BIT, 0, 0, nullptr, 0, nullptr, 1, &imageMemoryBarrier);
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}
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}
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subresourceRange.levelCount = mipLevels;
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imageLayout = VK_IMAGE_LAYOUT_SHADER_READ_ONLY_OPTIMAL;
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{
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VkImageMemoryBarrier imageMemoryBarrier{};
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imageMemoryBarrier.sType = VK_STRUCTURE_TYPE_IMAGE_MEMORY_BARRIER;
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imageMemoryBarrier.oldLayout = VK_IMAGE_LAYOUT_TRANSFER_SRC_OPTIMAL;
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imageMemoryBarrier.newLayout = VK_IMAGE_LAYOUT_SHADER_READ_ONLY_OPTIMAL;
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imageMemoryBarrier.srcAccessMask = VK_ACCESS_TRANSFER_WRITE_BIT;
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imageMemoryBarrier.dstAccessMask = VK_ACCESS_SHADER_READ_BIT;
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imageMemoryBarrier.image = image;
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imageMemoryBarrier.subresourceRange = subresourceRange;
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vkCmdPipelineBarrier(blitCmd, VK_PIPELINE_STAGE_ALL_COMMANDS_BIT, VK_PIPELINE_STAGE_ALL_COMMANDS_BIT, 0, 0, nullptr, 0, nullptr, 1, &imageMemoryBarrier);
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}
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if (deleteBuffer) {
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delete[] buffer;
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}
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device->flushCommandBuffer(blitCmd, copyQueue, true);
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}
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else {
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// Texture is stored in an external ktx file
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std::string filename = path + "/" + gltfimage.uri;
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ktxTexture* ktxTexture;
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ktxResult result = KTX_SUCCESS;
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#if defined(__ANDROID__)
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AAsset* asset = AAssetManager_open(androidApp->activity->assetManager, filename.c_str(), AASSET_MODE_STREAMING);
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if (!asset) {
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vks::tools::exitFatal("Could not load texture from " + filename + "\n\nThe file may be part of the additional asset pack.\n\nRun \"download_assets.py\" in the repository root to download the latest version.", -1);
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}
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size_t size = AAsset_getLength(asset);
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assert(size > 0);
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ktx_uint8_t* textureData = new ktx_uint8_t[size];
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AAsset_read(asset, textureData, size);
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AAsset_close(asset);
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result = ktxTexture_CreateFromMemory(textureData, size, KTX_TEXTURE_CREATE_LOAD_IMAGE_DATA_BIT, &ktxTexture);
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delete[] textureData;
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#else
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if (!vks::tools::fileExists(filename)) {
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vks::tools::exitFatal("Could not load texture from " + filename + "\n\nThe file may be part of the additional asset pack.\n\nRun \"download_assets.py\" in the repository root to download the latest version.", -1);
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}
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result = ktxTexture_CreateFromNamedFile(filename.c_str(), KTX_TEXTURE_CREATE_LOAD_IMAGE_DATA_BIT, &ktxTexture);
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#endif
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assert(result == KTX_SUCCESS);
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this->device = device;
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width = ktxTexture->baseWidth;
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height = ktxTexture->baseHeight;
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mipLevels = ktxTexture->numLevels;
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ktx_uint8_t* ktxTextureData = ktxTexture_GetData(ktxTexture);
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ktx_size_t ktxTextureSize = ktxTexture_GetSize(ktxTexture);
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// @todo: Use ktxTexture_GetVkFormat(ktxTexture)
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format = VK_FORMAT_R8G8B8A8_UNORM;
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// Get device properties for the requested texture format
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VkFormatProperties formatProperties;
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vkGetPhysicalDeviceFormatProperties(device->physicalDevice, format, &formatProperties);
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VkCommandBuffer copyCmd = device->createCommandBuffer(VK_COMMAND_BUFFER_LEVEL_PRIMARY, true);
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VkBuffer stagingBuffer;
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VkDeviceMemory stagingMemory;
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VkBufferCreateInfo bufferCreateInfo = vks::initializers::bufferCreateInfo();
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bufferCreateInfo.size = ktxTextureSize;
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// This buffer is used as a transfer source for the buffer copy
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bufferCreateInfo.usage = VK_BUFFER_USAGE_TRANSFER_SRC_BIT;
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bufferCreateInfo.sharingMode = VK_SHARING_MODE_EXCLUSIVE;
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VK_CHECK_RESULT(vkCreateBuffer(device->logicalDevice, &bufferCreateInfo, nullptr, &stagingBuffer));
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VkMemoryAllocateInfo memAllocInfo = vks::initializers::memoryAllocateInfo();
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VkMemoryRequirements memReqs;
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vkGetBufferMemoryRequirements(device->logicalDevice, stagingBuffer, &memReqs);
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memAllocInfo.allocationSize = memReqs.size;
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memAllocInfo.memoryTypeIndex = device->getMemoryType(memReqs.memoryTypeBits, VK_MEMORY_PROPERTY_HOST_VISIBLE_BIT | VK_MEMORY_PROPERTY_HOST_COHERENT_BIT);
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VK_CHECK_RESULT(vkAllocateMemory(device->logicalDevice, &memAllocInfo, nullptr, &stagingMemory));
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VK_CHECK_RESULT(vkBindBufferMemory(device->logicalDevice, stagingBuffer, stagingMemory, 0));
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uint8_t* data;
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VK_CHECK_RESULT(vkMapMemory(device->logicalDevice, stagingMemory, 0, memReqs.size, 0, (void**)&data));
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memcpy(data, ktxTextureData, ktxTextureSize);
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vkUnmapMemory(device->logicalDevice, stagingMemory);
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std::vector<VkBufferImageCopy> bufferCopyRegions;
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for (uint32_t i = 0; i < mipLevels; i++)
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{
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ktx_size_t offset;
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KTX_error_code result = ktxTexture_GetImageOffset(ktxTexture, i, 0, 0, &offset);
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assert(result == KTX_SUCCESS);
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VkBufferImageCopy bufferCopyRegion = {};
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bufferCopyRegion.imageSubresource.aspectMask = VK_IMAGE_ASPECT_COLOR_BIT;
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bufferCopyRegion.imageSubresource.mipLevel = i;
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bufferCopyRegion.imageSubresource.baseArrayLayer = 0;
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bufferCopyRegion.imageSubresource.layerCount = 1;
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bufferCopyRegion.imageExtent.width = std::max(1u, ktxTexture->baseWidth >> i);
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bufferCopyRegion.imageExtent.height = std::max(1u, ktxTexture->baseHeight >> i);
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bufferCopyRegion.imageExtent.depth = 1;
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bufferCopyRegion.bufferOffset = offset;
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bufferCopyRegions.push_back(bufferCopyRegion);
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}
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// Create optimal tiled target image
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VkImageCreateInfo imageCreateInfo = vks::initializers::imageCreateInfo();
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imageCreateInfo.imageType = VK_IMAGE_TYPE_2D;
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imageCreateInfo.format = format;
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imageCreateInfo.mipLevels = mipLevels;
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imageCreateInfo.arrayLayers = 1;
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imageCreateInfo.samples = VK_SAMPLE_COUNT_1_BIT;
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imageCreateInfo.tiling = VK_IMAGE_TILING_OPTIMAL;
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imageCreateInfo.sharingMode = VK_SHARING_MODE_EXCLUSIVE;
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imageCreateInfo.initialLayout = VK_IMAGE_LAYOUT_UNDEFINED;
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imageCreateInfo.extent = { width, height, 1 };
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imageCreateInfo.usage = VK_IMAGE_USAGE_SAMPLED_BIT | VK_IMAGE_USAGE_TRANSFER_DST_BIT;
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VK_CHECK_RESULT(vkCreateImage(device->logicalDevice, &imageCreateInfo, nullptr, &image));
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vkGetImageMemoryRequirements(device->logicalDevice, image, &memReqs);
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memAllocInfo.allocationSize = memReqs.size;
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memAllocInfo.memoryTypeIndex = device->getMemoryType(memReqs.memoryTypeBits, VK_MEMORY_PROPERTY_DEVICE_LOCAL_BIT);
|
|
VK_CHECK_RESULT(vkAllocateMemory(device->logicalDevice, &memAllocInfo, nullptr, &deviceMemory));
|
|
VK_CHECK_RESULT(vkBindImageMemory(device->logicalDevice, image, deviceMemory, 0));
|
|
|
|
VkImageSubresourceRange subresourceRange = {};
|
|
subresourceRange.aspectMask = VK_IMAGE_ASPECT_COLOR_BIT;
|
|
subresourceRange.baseMipLevel = 0;
|
|
subresourceRange.levelCount = mipLevels;
|
|
subresourceRange.layerCount = 1;
|
|
|
|
vks::tools::setImageLayout(copyCmd, image, VK_IMAGE_LAYOUT_UNDEFINED, VK_IMAGE_LAYOUT_TRANSFER_DST_OPTIMAL, subresourceRange);
|
|
vkCmdCopyBufferToImage(copyCmd, stagingBuffer, image, VK_IMAGE_LAYOUT_TRANSFER_DST_OPTIMAL, static_cast<uint32_t>(bufferCopyRegions.size()), bufferCopyRegions.data());
|
|
vks::tools::setImageLayout(copyCmd, image, VK_IMAGE_LAYOUT_TRANSFER_DST_OPTIMAL, VK_IMAGE_LAYOUT_SHADER_READ_ONLY_OPTIMAL, subresourceRange);
|
|
device->flushCommandBuffer(copyCmd, copyQueue);
|
|
this->imageLayout = VK_IMAGE_LAYOUT_SHADER_READ_ONLY_OPTIMAL;
|
|
|
|
vkFreeMemory(device->logicalDevice, stagingMemory, nullptr);
|
|
vkDestroyBuffer(device->logicalDevice, stagingBuffer, nullptr);
|
|
|
|
ktxTexture_Destroy(ktxTexture);
|
|
}
|
|
|
|
VkSamplerCreateInfo samplerInfo{};
|
|
samplerInfo.sType = VK_STRUCTURE_TYPE_SAMPLER_CREATE_INFO;
|
|
samplerInfo.magFilter = VK_FILTER_LINEAR;
|
|
samplerInfo.minFilter = VK_FILTER_LINEAR;
|
|
samplerInfo.mipmapMode = VK_SAMPLER_MIPMAP_MODE_LINEAR;
|
|
samplerInfo.addressModeU = VK_SAMPLER_ADDRESS_MODE_MIRRORED_REPEAT;
|
|
samplerInfo.addressModeV = VK_SAMPLER_ADDRESS_MODE_MIRRORED_REPEAT;
|
|
samplerInfo.addressModeW = VK_SAMPLER_ADDRESS_MODE_MIRRORED_REPEAT;
|
|
samplerInfo.compareOp = VK_COMPARE_OP_NEVER;
|
|
samplerInfo.borderColor = VK_BORDER_COLOR_FLOAT_OPAQUE_WHITE;
|
|
samplerInfo.maxAnisotropy = 1.0;
|
|
samplerInfo.anisotropyEnable = VK_FALSE;
|
|
samplerInfo.maxLod = (float)mipLevels;
|
|
samplerInfo.maxAnisotropy = 8.0f;
|
|
samplerInfo.anisotropyEnable = VK_TRUE;
|
|
VK_CHECK_RESULT(vkCreateSampler(device->logicalDevice, &samplerInfo, nullptr, &sampler));
|
|
|
|
VkImageViewCreateInfo viewInfo{};
|
|
viewInfo.sType = VK_STRUCTURE_TYPE_IMAGE_VIEW_CREATE_INFO;
|
|
viewInfo.image = image;
|
|
viewInfo.viewType = VK_IMAGE_VIEW_TYPE_2D;
|
|
viewInfo.format = format;
|
|
viewInfo.subresourceRange.aspectMask = VK_IMAGE_ASPECT_COLOR_BIT;
|
|
viewInfo.subresourceRange.layerCount = 1;
|
|
viewInfo.subresourceRange.levelCount = mipLevels;
|
|
VK_CHECK_RESULT(vkCreateImageView(device->logicalDevice, &viewInfo, nullptr, &view));
|
|
|
|
descriptor.sampler = sampler;
|
|
descriptor.imageView = view;
|
|
descriptor.imageLayout = imageLayout;
|
|
}
|
|
|
|
/*
|
|
glTF material
|
|
*/
|
|
void vkglTF::Material::createDescriptorSet(VkDescriptorPool descriptorPool, VkDescriptorSetLayout descriptorSetLayout, uint32_t descriptorBindingFlags)
|
|
{
|
|
VkDescriptorSetAllocateInfo descriptorSetAllocInfo{};
|
|
descriptorSetAllocInfo.sType = VK_STRUCTURE_TYPE_DESCRIPTOR_SET_ALLOCATE_INFO;
|
|
descriptorSetAllocInfo.descriptorPool = descriptorPool;
|
|
descriptorSetAllocInfo.pSetLayouts = &descriptorSetLayout;
|
|
descriptorSetAllocInfo.descriptorSetCount = 1;
|
|
VK_CHECK_RESULT(vkAllocateDescriptorSets(device->logicalDevice, &descriptorSetAllocInfo, &descriptorSet));
|
|
std::vector<VkDescriptorImageInfo> imageDescriptors{};
|
|
std::vector<VkWriteDescriptorSet> writeDescriptorSets{};
|
|
if (descriptorBindingFlags & DescriptorBindingFlags::ImageBaseColor) {
|
|
imageDescriptors.push_back(baseColorTexture->descriptor);
|
|
VkWriteDescriptorSet writeDescriptorSet{};
|
|
writeDescriptorSet.sType = VK_STRUCTURE_TYPE_WRITE_DESCRIPTOR_SET;
|
|
writeDescriptorSet.descriptorType = VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER;
|
|
writeDescriptorSet.descriptorCount = 1;
|
|
writeDescriptorSet.dstSet = descriptorSet;
|
|
writeDescriptorSet.dstBinding = static_cast<uint32_t>(writeDescriptorSets.size());
|
|
writeDescriptorSet.pImageInfo = &baseColorTexture->descriptor;
|
|
writeDescriptorSets.push_back(writeDescriptorSet);
|
|
}
|
|
if (normalTexture && descriptorBindingFlags & DescriptorBindingFlags::ImageNormalMap) {
|
|
imageDescriptors.push_back(normalTexture->descriptor);
|
|
VkWriteDescriptorSet writeDescriptorSet{};
|
|
writeDescriptorSet.sType = VK_STRUCTURE_TYPE_WRITE_DESCRIPTOR_SET;
|
|
writeDescriptorSet.descriptorType = VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER;
|
|
writeDescriptorSet.descriptorCount = 1;
|
|
writeDescriptorSet.dstSet = descriptorSet;
|
|
writeDescriptorSet.dstBinding = static_cast<uint32_t>(writeDescriptorSets.size());
|
|
writeDescriptorSet.pImageInfo = &normalTexture->descriptor;
|
|
writeDescriptorSets.push_back(writeDescriptorSet);
|
|
}
|
|
vkUpdateDescriptorSets(device->logicalDevice, static_cast<uint32_t>(writeDescriptorSets.size()), writeDescriptorSets.data(), 0, nullptr);
|
|
}
|
|
|
|
|
|
/*
|
|
glTF primitive
|
|
*/
|
|
void vkglTF::Primitive::setDimensions(glm::vec3 min, glm::vec3 max) {
|
|
dimensions.min = min;
|
|
dimensions.max = max;
|
|
dimensions.size = max - min;
|
|
dimensions.center = (min + max) / 2.0f;
|
|
dimensions.radius = glm::distance(min, max) / 2.0f;
|
|
}
|
|
|
|
/*
|
|
glTF mesh
|
|
*/
|
|
vkglTF::Mesh::Mesh(vks::VulkanDevice *device, glm::mat4 matrix) {
|
|
this->device = device;
|
|
this->uniformBlock.matrix = matrix;
|
|
VK_CHECK_RESULT(device->createBuffer(
|
|
VK_BUFFER_USAGE_UNIFORM_BUFFER_BIT,
|
|
VK_MEMORY_PROPERTY_HOST_VISIBLE_BIT | VK_MEMORY_PROPERTY_HOST_COHERENT_BIT,
|
|
sizeof(uniformBlock),
|
|
&uniformBuffer.buffer,
|
|
&uniformBuffer.memory,
|
|
&uniformBlock));
|
|
VK_CHECK_RESULT(vkMapMemory(device->logicalDevice, uniformBuffer.memory, 0, sizeof(uniformBlock), 0, &uniformBuffer.mapped));
|
|
uniformBuffer.descriptor = { uniformBuffer.buffer, 0, sizeof(uniformBlock) };
|
|
};
|
|
|
|
vkglTF::Mesh::~Mesh() {
|
|
vkDestroyBuffer(device->logicalDevice, uniformBuffer.buffer, nullptr);
|
|
vkFreeMemory(device->logicalDevice, uniformBuffer.memory, nullptr);
|
|
for(auto primitive : primitives)
|
|
{
|
|
delete primitive;
|
|
}
|
|
}
|
|
|
|
/*
|
|
glTF node
|
|
*/
|
|
glm::mat4 vkglTF::Node::localMatrix() {
|
|
return glm::translate(glm::mat4(1.0f), translation) * glm::mat4(rotation) * glm::scale(glm::mat4(1.0f), scale) * matrix;
|
|
}
|
|
|
|
glm::mat4 vkglTF::Node::getMatrix() {
|
|
glm::mat4 m = localMatrix();
|
|
vkglTF::Node *p = parent;
|
|
while (p) {
|
|
m = p->localMatrix() * m;
|
|
p = p->parent;
|
|
}
|
|
return m;
|
|
}
|
|
|
|
void vkglTF::Node::update() {
|
|
if (mesh) {
|
|
glm::mat4 m = getMatrix();
|
|
if (skin) {
|
|
mesh->uniformBlock.matrix = m;
|
|
// Update join matrices
|
|
glm::mat4 inverseTransform = glm::inverse(m);
|
|
for (size_t i = 0; i < skin->joints.size(); i++) {
|
|
vkglTF::Node *jointNode = skin->joints[i];
|
|
glm::mat4 jointMat = jointNode->getMatrix() * skin->inverseBindMatrices[i];
|
|
jointMat = inverseTransform * jointMat;
|
|
mesh->uniformBlock.jointMatrix[i] = jointMat;
|
|
}
|
|
mesh->uniformBlock.jointcount = (float)skin->joints.size();
|
|
memcpy(mesh->uniformBuffer.mapped, &mesh->uniformBlock, sizeof(mesh->uniformBlock));
|
|
} else {
|
|
memcpy(mesh->uniformBuffer.mapped, &m, sizeof(glm::mat4));
|
|
}
|
|
}
|
|
|
|
for (auto& child : children) {
|
|
child->update();
|
|
}
|
|
}
|
|
|
|
vkglTF::Node::~Node() {
|
|
if (mesh) {
|
|
delete mesh;
|
|
}
|
|
for (auto& child : children) {
|
|
delete child;
|
|
}
|
|
}
|
|
|
|
/*
|
|
glTF default vertex layout with easy Vulkan mapping functions
|
|
*/
|
|
|
|
VkVertexInputBindingDescription vkglTF::Vertex::vertexInputBindingDescription;
|
|
std::vector<VkVertexInputAttributeDescription> vkglTF::Vertex::vertexInputAttributeDescriptions;
|
|
VkPipelineVertexInputStateCreateInfo vkglTF::Vertex::pipelineVertexInputStateCreateInfo;
|
|
|
|
VkVertexInputBindingDescription vkglTF::Vertex::inputBindingDescription(uint32_t binding) {
|
|
return VkVertexInputBindingDescription({ binding, sizeof(Vertex), VK_VERTEX_INPUT_RATE_VERTEX });
|
|
}
|
|
|
|
VkVertexInputAttributeDescription vkglTF::Vertex::inputAttributeDescription(uint32_t binding, uint32_t location, VertexComponent component) {
|
|
switch (component) {
|
|
case VertexComponent::Position:
|
|
return VkVertexInputAttributeDescription({ location, binding, VK_FORMAT_R32G32B32_SFLOAT, offsetof(Vertex, pos) });
|
|
case VertexComponent::Normal:
|
|
return VkVertexInputAttributeDescription({ location, binding, VK_FORMAT_R32G32B32_SFLOAT, offsetof(Vertex, normal) });
|
|
case VertexComponent::UV:
|
|
return VkVertexInputAttributeDescription({ location, binding, VK_FORMAT_R32G32_SFLOAT, offsetof(Vertex, uv) });
|
|
case VertexComponent::Color:
|
|
return VkVertexInputAttributeDescription({ location, binding, VK_FORMAT_R32G32B32A32_SFLOAT, offsetof(Vertex, color) });
|
|
case VertexComponent::Tangent:
|
|
return VkVertexInputAttributeDescription({ location, binding, VK_FORMAT_R32G32B32A32_SFLOAT, offsetof(Vertex, tangent)} );
|
|
case VertexComponent::Joint0:
|
|
return VkVertexInputAttributeDescription({ location, binding, VK_FORMAT_R32G32B32A32_SFLOAT, offsetof(Vertex, joint0) });
|
|
case VertexComponent::Weight0:
|
|
return VkVertexInputAttributeDescription({ location, binding, VK_FORMAT_R32G32B32A32_SFLOAT, offsetof(Vertex, weight0) });
|
|
default:
|
|
return VkVertexInputAttributeDescription({});
|
|
}
|
|
}
|
|
|
|
std::vector<VkVertexInputAttributeDescription> vkglTF::Vertex::inputAttributeDescriptions(uint32_t binding, const std::vector<VertexComponent> components) {
|
|
std::vector<VkVertexInputAttributeDescription> result;
|
|
uint32_t location = 0;
|
|
for (VertexComponent component : components) {
|
|
result.push_back(Vertex::inputAttributeDescription(binding, location, component));
|
|
location++;
|
|
}
|
|
return result;
|
|
}
|
|
|
|
/** @brief Returns the default pipeline vertex input state create info structure for the requested vertex components */
|
|
VkPipelineVertexInputStateCreateInfo* vkglTF::Vertex::getPipelineVertexInputState(const std::vector<VertexComponent> components) {
|
|
vertexInputBindingDescription = Vertex::inputBindingDescription(0);
|
|
Vertex::vertexInputAttributeDescriptions = Vertex::inputAttributeDescriptions(0, components);
|
|
pipelineVertexInputStateCreateInfo.sType = VK_STRUCTURE_TYPE_PIPELINE_VERTEX_INPUT_STATE_CREATE_INFO;
|
|
pipelineVertexInputStateCreateInfo.vertexBindingDescriptionCount = 1;
|
|
pipelineVertexInputStateCreateInfo.pVertexBindingDescriptions = &Vertex::vertexInputBindingDescription;
|
|
pipelineVertexInputStateCreateInfo.vertexAttributeDescriptionCount = static_cast<uint32_t>(Vertex::vertexInputAttributeDescriptions.size());
|
|
pipelineVertexInputStateCreateInfo.pVertexAttributeDescriptions = Vertex::vertexInputAttributeDescriptions.data();
|
|
return &pipelineVertexInputStateCreateInfo;
|
|
}
|
|
|
|
vkglTF::Texture* vkglTF::Model::getTexture(uint32_t index)
|
|
{
|
|
|
|
if (index < textures.size()) {
|
|
return &textures[index];
|
|
}
|
|
return nullptr;
|
|
}
|
|
|
|
void vkglTF::Model::createEmptyTexture(VkQueue transferQueue)
|
|
{
|
|
emptyTexture.device = device;
|
|
emptyTexture.width = 1;
|
|
emptyTexture.height = 1;
|
|
emptyTexture.layerCount = 1;
|
|
emptyTexture.mipLevels = 1;
|
|
|
|
size_t bufferSize = emptyTexture.width * emptyTexture.height * 4;
|
|
unsigned char* buffer = new unsigned char[bufferSize];
|
|
memset(buffer, 0, bufferSize);
|
|
|
|
VkBuffer stagingBuffer;
|
|
VkDeviceMemory stagingMemory;
|
|
VkBufferCreateInfo bufferCreateInfo = vks::initializers::bufferCreateInfo();
|
|
bufferCreateInfo.size = bufferSize;
|
|
// This buffer is used as a transfer source for the buffer copy
|
|
bufferCreateInfo.usage = VK_BUFFER_USAGE_TRANSFER_SRC_BIT;
|
|
bufferCreateInfo.sharingMode = VK_SHARING_MODE_EXCLUSIVE;
|
|
VK_CHECK_RESULT(vkCreateBuffer(device->logicalDevice, &bufferCreateInfo, nullptr, &stagingBuffer));
|
|
|
|
VkMemoryAllocateInfo memAllocInfo = vks::initializers::memoryAllocateInfo();
|
|
VkMemoryRequirements memReqs;
|
|
vkGetBufferMemoryRequirements(device->logicalDevice, stagingBuffer, &memReqs);
|
|
memAllocInfo.allocationSize = memReqs.size;
|
|
memAllocInfo.memoryTypeIndex = device->getMemoryType(memReqs.memoryTypeBits, VK_MEMORY_PROPERTY_HOST_VISIBLE_BIT | VK_MEMORY_PROPERTY_HOST_COHERENT_BIT);
|
|
VK_CHECK_RESULT(vkAllocateMemory(device->logicalDevice, &memAllocInfo, nullptr, &stagingMemory));
|
|
VK_CHECK_RESULT(vkBindBufferMemory(device->logicalDevice, stagingBuffer, stagingMemory, 0));
|
|
|
|
// Copy texture data into staging buffer
|
|
uint8_t* data;
|
|
VK_CHECK_RESULT(vkMapMemory(device->logicalDevice, stagingMemory, 0, memReqs.size, 0, (void**)&data));
|
|
memcpy(data, buffer, bufferSize);
|
|
vkUnmapMemory(device->logicalDevice, stagingMemory);
|
|
|
|
VkBufferImageCopy bufferCopyRegion = {};
|
|
bufferCopyRegion.imageSubresource.aspectMask = VK_IMAGE_ASPECT_COLOR_BIT;
|
|
bufferCopyRegion.imageSubresource.layerCount = 1;
|
|
bufferCopyRegion.imageExtent.width = emptyTexture.width;
|
|
bufferCopyRegion.imageExtent.height = emptyTexture.height;
|
|
bufferCopyRegion.imageExtent.depth = 1;
|
|
|
|
// Create optimal tiled target image
|
|
VkImageCreateInfo imageCreateInfo = vks::initializers::imageCreateInfo();
|
|
imageCreateInfo.imageType = VK_IMAGE_TYPE_2D;
|
|
imageCreateInfo.format = VK_FORMAT_R8G8B8A8_UNORM;
|
|
imageCreateInfo.mipLevels = 1;
|
|
imageCreateInfo.arrayLayers = 1;
|
|
imageCreateInfo.samples = VK_SAMPLE_COUNT_1_BIT;
|
|
imageCreateInfo.tiling = VK_IMAGE_TILING_OPTIMAL;
|
|
imageCreateInfo.sharingMode = VK_SHARING_MODE_EXCLUSIVE;
|
|
imageCreateInfo.initialLayout = VK_IMAGE_LAYOUT_UNDEFINED;
|
|
imageCreateInfo.extent = { emptyTexture.width, emptyTexture.height, 1 };
|
|
imageCreateInfo.usage = VK_IMAGE_USAGE_SAMPLED_BIT | VK_IMAGE_USAGE_TRANSFER_DST_BIT;
|
|
VK_CHECK_RESULT(vkCreateImage(device->logicalDevice, &imageCreateInfo, nullptr, &emptyTexture.image));
|
|
|
|
vkGetImageMemoryRequirements(device->logicalDevice, emptyTexture.image, &memReqs);
|
|
memAllocInfo.allocationSize = memReqs.size;
|
|
memAllocInfo.memoryTypeIndex = device->getMemoryType(memReqs.memoryTypeBits, VK_MEMORY_PROPERTY_DEVICE_LOCAL_BIT);
|
|
VK_CHECK_RESULT(vkAllocateMemory(device->logicalDevice, &memAllocInfo, nullptr, &emptyTexture.deviceMemory));
|
|
VK_CHECK_RESULT(vkBindImageMemory(device->logicalDevice, emptyTexture.image, emptyTexture.deviceMemory, 0));
|
|
|
|
VkImageSubresourceRange subresourceRange{};
|
|
subresourceRange.aspectMask = VK_IMAGE_ASPECT_COLOR_BIT;
|
|
subresourceRange.baseMipLevel = 0;
|
|
subresourceRange.levelCount = 1;
|
|
subresourceRange.layerCount = 1;
|
|
|
|
VkCommandBuffer copyCmd = device->createCommandBuffer(VK_COMMAND_BUFFER_LEVEL_PRIMARY, true);
|
|
vks::tools::setImageLayout(copyCmd, emptyTexture.image, VK_IMAGE_LAYOUT_UNDEFINED, VK_IMAGE_LAYOUT_TRANSFER_DST_OPTIMAL, subresourceRange);
|
|
vkCmdCopyBufferToImage(copyCmd, stagingBuffer, emptyTexture.image, VK_IMAGE_LAYOUT_TRANSFER_DST_OPTIMAL, 1, &bufferCopyRegion);
|
|
vks::tools::setImageLayout(copyCmd, emptyTexture.image, VK_IMAGE_LAYOUT_TRANSFER_DST_OPTIMAL, VK_IMAGE_LAYOUT_SHADER_READ_ONLY_OPTIMAL, subresourceRange);
|
|
device->flushCommandBuffer(copyCmd, transferQueue);
|
|
emptyTexture.imageLayout = VK_IMAGE_LAYOUT_SHADER_READ_ONLY_OPTIMAL;
|
|
|
|
// Clean up staging resources
|
|
vkFreeMemory(device->logicalDevice, stagingMemory, nullptr);
|
|
vkDestroyBuffer(device->logicalDevice, stagingBuffer, nullptr);
|
|
|
|
VkSamplerCreateInfo samplerCreateInfo = vks::initializers::samplerCreateInfo();
|
|
samplerCreateInfo.magFilter = VK_FILTER_LINEAR;
|
|
samplerCreateInfo.minFilter = VK_FILTER_LINEAR;
|
|
samplerCreateInfo.mipmapMode = VK_SAMPLER_MIPMAP_MODE_LINEAR;
|
|
samplerCreateInfo.addressModeU = VK_SAMPLER_ADDRESS_MODE_REPEAT;
|
|
samplerCreateInfo.addressModeV = VK_SAMPLER_ADDRESS_MODE_REPEAT;
|
|
samplerCreateInfo.addressModeW = VK_SAMPLER_ADDRESS_MODE_REPEAT;
|
|
samplerCreateInfo.compareOp = VK_COMPARE_OP_NEVER;
|
|
samplerCreateInfo.maxAnisotropy = 1.0f;
|
|
VK_CHECK_RESULT(vkCreateSampler(device->logicalDevice, &samplerCreateInfo, nullptr, &emptyTexture.sampler));
|
|
|
|
VkImageViewCreateInfo viewCreateInfo = vks::initializers::imageViewCreateInfo();
|
|
viewCreateInfo.viewType = VK_IMAGE_VIEW_TYPE_2D;
|
|
viewCreateInfo.format = VK_FORMAT_R8G8B8A8_UNORM;
|
|
viewCreateInfo.subresourceRange = { VK_IMAGE_ASPECT_COLOR_BIT, 0, 1, 0, 1 };
|
|
viewCreateInfo.subresourceRange.levelCount = 1;
|
|
viewCreateInfo.image = emptyTexture.image;
|
|
VK_CHECK_RESULT(vkCreateImageView(device->logicalDevice, &viewCreateInfo, nullptr, &emptyTexture.view));
|
|
|
|
emptyTexture.descriptor.imageLayout = VK_IMAGE_LAYOUT_SHADER_READ_ONLY_OPTIMAL;
|
|
emptyTexture.descriptor.imageView = emptyTexture.view;
|
|
emptyTexture.descriptor.sampler = emptyTexture.sampler;
|
|
}
|
|
|
|
/*
|
|
glTF model loading and rendering class
|
|
*/
|
|
vkglTF::Model::~Model()
|
|
{
|
|
vkDestroyBuffer(device->logicalDevice, vertices.buffer, nullptr);
|
|
vkFreeMemory(device->logicalDevice, vertices.memory, nullptr);
|
|
vkDestroyBuffer(device->logicalDevice, indices.buffer, nullptr);
|
|
vkFreeMemory(device->logicalDevice, indices.memory, nullptr);
|
|
for (auto texture : textures) {
|
|
texture.destroy();
|
|
}
|
|
for (auto node : nodes) {
|
|
delete node;
|
|
}
|
|
for (auto skin : skins) {
|
|
delete skin;
|
|
}
|
|
if (descriptorSetLayoutUbo != VK_NULL_HANDLE) {
|
|
vkDestroyDescriptorSetLayout(device->logicalDevice, descriptorSetLayoutUbo, nullptr);
|
|
descriptorSetLayoutUbo = VK_NULL_HANDLE;
|
|
}
|
|
if (descriptorSetLayoutImage != VK_NULL_HANDLE) {
|
|
vkDestroyDescriptorSetLayout(device->logicalDevice, descriptorSetLayoutImage, nullptr);
|
|
descriptorSetLayoutImage = VK_NULL_HANDLE;
|
|
}
|
|
vkDestroyDescriptorPool(device->logicalDevice, descriptorPool, nullptr);
|
|
emptyTexture.destroy();
|
|
}
|
|
|
|
void vkglTF::Model::loadNode(vkglTF::Node *parent, const tinygltf::Node &node, uint32_t nodeIndex, const tinygltf::Model &model, std::vector<uint32_t>& indexBuffer, std::vector<Vertex>& vertexBuffer, float globalscale)
|
|
{
|
|
vkglTF::Node *newNode = new Node{};
|
|
newNode->index = nodeIndex;
|
|
newNode->parent = parent;
|
|
newNode->name = node.name;
|
|
newNode->skinIndex = node.skin;
|
|
newNode->matrix = glm::mat4(1.0f);
|
|
|
|
// Generate local node matrix
|
|
glm::vec3 translation = glm::vec3(0.0f);
|
|
if (node.translation.size() == 3) {
|
|
translation = glm::make_vec3(node.translation.data());
|
|
newNode->translation = translation;
|
|
}
|
|
glm::mat4 rotation = glm::mat4(1.0f);
|
|
if (node.rotation.size() == 4) {
|
|
glm::quat q = glm::make_quat(node.rotation.data());
|
|
newNode->rotation = glm::mat4(q);
|
|
}
|
|
glm::vec3 scale = glm::vec3(1.0f);
|
|
if (node.scale.size() == 3) {
|
|
scale = glm::make_vec3(node.scale.data());
|
|
newNode->scale = scale;
|
|
}
|
|
if (node.matrix.size() == 16) {
|
|
newNode->matrix = glm::make_mat4x4(node.matrix.data());
|
|
if (globalscale != 1.0f) {
|
|
//newNode->matrix = glm::scale(newNode->matrix, glm::vec3(globalscale));
|
|
}
|
|
};
|
|
|
|
// Node with children
|
|
if (node.children.size() > 0) {
|
|
for (auto i = 0; i < node.children.size(); i++) {
|
|
loadNode(newNode, model.nodes[node.children[i]], node.children[i], model, indexBuffer, vertexBuffer, globalscale);
|
|
}
|
|
}
|
|
|
|
// Node contains mesh data
|
|
if (node.mesh > -1) {
|
|
const tinygltf::Mesh mesh = model.meshes[node.mesh];
|
|
Mesh *newMesh = new Mesh(device, newNode->matrix);
|
|
newMesh->name = mesh.name;
|
|
for (size_t j = 0; j < mesh.primitives.size(); j++) {
|
|
const tinygltf::Primitive &primitive = mesh.primitives[j];
|
|
if (primitive.indices < 0) {
|
|
continue;
|
|
}
|
|
uint32_t indexStart = static_cast<uint32_t>(indexBuffer.size());
|
|
uint32_t vertexStart = static_cast<uint32_t>(vertexBuffer.size());
|
|
uint32_t indexCount = 0;
|
|
uint32_t vertexCount = 0;
|
|
glm::vec3 posMin{};
|
|
glm::vec3 posMax{};
|
|
bool hasSkin = false;
|
|
// Vertices
|
|
{
|
|
const float *bufferPos = nullptr;
|
|
const float *bufferNormals = nullptr;
|
|
const float *bufferTexCoords = nullptr;
|
|
const float* bufferColors = nullptr;
|
|
const float *bufferTangents = nullptr;
|
|
uint32_t numColorComponents;
|
|
const uint16_t *bufferJoints = nullptr;
|
|
const float *bufferWeights = nullptr;
|
|
|
|
// Position attribute is required
|
|
assert(primitive.attributes.find("POSITION") != primitive.attributes.end());
|
|
|
|
const tinygltf::Accessor &posAccessor = model.accessors[primitive.attributes.find("POSITION")->second];
|
|
const tinygltf::BufferView &posView = model.bufferViews[posAccessor.bufferView];
|
|
bufferPos = reinterpret_cast<const float *>(&(model.buffers[posView.buffer].data[posAccessor.byteOffset + posView.byteOffset]));
|
|
posMin = glm::vec3(posAccessor.minValues[0], posAccessor.minValues[1], posAccessor.minValues[2]);
|
|
posMax = glm::vec3(posAccessor.maxValues[0], posAccessor.maxValues[1], posAccessor.maxValues[2]);
|
|
|
|
if (primitive.attributes.find("NORMAL") != primitive.attributes.end()) {
|
|
const tinygltf::Accessor &normAccessor = model.accessors[primitive.attributes.find("NORMAL")->second];
|
|
const tinygltf::BufferView &normView = model.bufferViews[normAccessor.bufferView];
|
|
bufferNormals = reinterpret_cast<const float *>(&(model.buffers[normView.buffer].data[normAccessor.byteOffset + normView.byteOffset]));
|
|
}
|
|
|
|
if (primitive.attributes.find("TEXCOORD_0") != primitive.attributes.end()) {
|
|
const tinygltf::Accessor &uvAccessor = model.accessors[primitive.attributes.find("TEXCOORD_0")->second];
|
|
const tinygltf::BufferView &uvView = model.bufferViews[uvAccessor.bufferView];
|
|
bufferTexCoords = reinterpret_cast<const float *>(&(model.buffers[uvView.buffer].data[uvAccessor.byteOffset + uvView.byteOffset]));
|
|
}
|
|
|
|
if (primitive.attributes.find("COLOR_0") != primitive.attributes.end())
|
|
{
|
|
const tinygltf::Accessor& colorAccessor = model.accessors[primitive.attributes.find("COLOR_0")->second];
|
|
const tinygltf::BufferView& colorView = model.bufferViews[colorAccessor.bufferView];
|
|
// Color buffer are either of type vec3 or vec4
|
|
numColorComponents = colorAccessor.type == TINYGLTF_PARAMETER_TYPE_FLOAT_VEC3 ? 3 : 4;
|
|
bufferColors = reinterpret_cast<const float*>(&(model.buffers[colorView.buffer].data[colorAccessor.byteOffset + colorView.byteOffset]));
|
|
}
|
|
|
|
if (primitive.attributes.find("TANGENT") != primitive.attributes.end())
|
|
{
|
|
const tinygltf::Accessor &tangentAccessor = model.accessors[primitive.attributes.find("TANGENT")->second];
|
|
const tinygltf::BufferView &tangentView = model.bufferViews[tangentAccessor.bufferView];
|
|
bufferTangents = reinterpret_cast<const float *>(&(model.buffers[tangentView.buffer].data[tangentAccessor.byteOffset + tangentView.byteOffset]));
|
|
}
|
|
|
|
// Skinning
|
|
// Joints
|
|
if (primitive.attributes.find("JOINTS_0") != primitive.attributes.end()) {
|
|
const tinygltf::Accessor &jointAccessor = model.accessors[primitive.attributes.find("JOINTS_0")->second];
|
|
const tinygltf::BufferView &jointView = model.bufferViews[jointAccessor.bufferView];
|
|
bufferJoints = reinterpret_cast<const uint16_t *>(&(model.buffers[jointView.buffer].data[jointAccessor.byteOffset + jointView.byteOffset]));
|
|
}
|
|
|
|
if (primitive.attributes.find("WEIGHTS_0") != primitive.attributes.end()) {
|
|
const tinygltf::Accessor &uvAccessor = model.accessors[primitive.attributes.find("WEIGHTS_0")->second];
|
|
const tinygltf::BufferView &uvView = model.bufferViews[uvAccessor.bufferView];
|
|
bufferWeights = reinterpret_cast<const float *>(&(model.buffers[uvView.buffer].data[uvAccessor.byteOffset + uvView.byteOffset]));
|
|
}
|
|
|
|
hasSkin = (bufferJoints && bufferWeights);
|
|
|
|
vertexCount = static_cast<uint32_t>(posAccessor.count);
|
|
|
|
for (size_t v = 0; v < posAccessor.count; v++) {
|
|
Vertex vert{};
|
|
vert.pos = glm::vec4(glm::make_vec3(&bufferPos[v * 3]), 1.0f);
|
|
vert.normal = glm::normalize(glm::vec3(bufferNormals ? glm::make_vec3(&bufferNormals[v * 3]) : glm::vec3(0.0f)));
|
|
vert.uv = bufferTexCoords ? glm::make_vec2(&bufferTexCoords[v * 2]) : glm::vec3(0.0f);
|
|
if (bufferColors) {
|
|
switch (numColorComponents) {
|
|
case 3:
|
|
vert.color = glm::vec4(glm::make_vec3(&bufferColors[v * 3]), 1.0f);
|
|
case 4:
|
|
vert.color = glm::make_vec4(&bufferColors[v * 4]);
|
|
}
|
|
}
|
|
else {
|
|
vert.color = glm::vec4(1.0f);
|
|
}
|
|
vert.tangent = bufferTangents ? glm::vec4(glm::make_vec4(&bufferTangents[v * 4])) : glm::vec4(0.0f);
|
|
vert.joint0 = hasSkin ? glm::vec4(glm::make_vec4(&bufferJoints[v * 4])) : glm::vec4(0.0f);
|
|
vert.weight0 = hasSkin ? glm::make_vec4(&bufferWeights[v * 4]) : glm::vec4(0.0f);
|
|
vertexBuffer.push_back(vert);
|
|
}
|
|
}
|
|
// Indices
|
|
{
|
|
const tinygltf::Accessor &accessor = model.accessors[primitive.indices];
|
|
const tinygltf::BufferView &bufferView = model.bufferViews[accessor.bufferView];
|
|
const tinygltf::Buffer &buffer = model.buffers[bufferView.buffer];
|
|
|
|
indexCount = static_cast<uint32_t>(accessor.count);
|
|
|
|
switch (accessor.componentType) {
|
|
case TINYGLTF_PARAMETER_TYPE_UNSIGNED_INT: {
|
|
uint32_t *buf = new uint32_t[accessor.count];
|
|
memcpy(buf, &buffer.data[accessor.byteOffset + bufferView.byteOffset], accessor.count * sizeof(uint32_t));
|
|
for (size_t index = 0; index < accessor.count; index++) {
|
|
indexBuffer.push_back(buf[index] + vertexStart);
|
|
}
|
|
delete[] buf;
|
|
break;
|
|
}
|
|
case TINYGLTF_PARAMETER_TYPE_UNSIGNED_SHORT: {
|
|
uint16_t *buf = new uint16_t[accessor.count];
|
|
memcpy(buf, &buffer.data[accessor.byteOffset + bufferView.byteOffset], accessor.count * sizeof(uint16_t));
|
|
for (size_t index = 0; index < accessor.count; index++) {
|
|
indexBuffer.push_back(buf[index] + vertexStart);
|
|
}
|
|
delete[] buf;
|
|
break;
|
|
}
|
|
case TINYGLTF_PARAMETER_TYPE_UNSIGNED_BYTE: {
|
|
uint8_t *buf = new uint8_t[accessor.count];
|
|
memcpy(buf, &buffer.data[accessor.byteOffset + bufferView.byteOffset], accessor.count * sizeof(uint8_t));
|
|
for (size_t index = 0; index < accessor.count; index++) {
|
|
indexBuffer.push_back(buf[index] + vertexStart);
|
|
}
|
|
delete[] buf;
|
|
break;
|
|
}
|
|
default:
|
|
std::cerr << "Index component type " << accessor.componentType << " not supported!" << std::endl;
|
|
return;
|
|
}
|
|
}
|
|
Primitive *newPrimitive = new Primitive(indexStart, indexCount, primitive.material > -1 ? materials[primitive.material] : materials.back());
|
|
newPrimitive->firstVertex = vertexStart;
|
|
newPrimitive->vertexCount = vertexCount;
|
|
newPrimitive->setDimensions(posMin, posMax);
|
|
newMesh->primitives.push_back(newPrimitive);
|
|
}
|
|
newNode->mesh = newMesh;
|
|
}
|
|
if (parent) {
|
|
parent->children.push_back(newNode);
|
|
} else {
|
|
nodes.push_back(newNode);
|
|
}
|
|
linearNodes.push_back(newNode);
|
|
}
|
|
|
|
void vkglTF::Model::loadSkins(tinygltf::Model &gltfModel)
|
|
{
|
|
for (tinygltf::Skin &source : gltfModel.skins) {
|
|
Skin *newSkin = new Skin{};
|
|
newSkin->name = source.name;
|
|
|
|
// Find skeleton root node
|
|
if (source.skeleton > -1) {
|
|
newSkin->skeletonRoot = nodeFromIndex(source.skeleton);
|
|
}
|
|
|
|
// Find joint nodes
|
|
for (int jointIndex : source.joints) {
|
|
Node* node = nodeFromIndex(jointIndex);
|
|
if (node) {
|
|
newSkin->joints.push_back(nodeFromIndex(jointIndex));
|
|
}
|
|
}
|
|
|
|
// Get inverse bind matrices from buffer
|
|
if (source.inverseBindMatrices > -1) {
|
|
const tinygltf::Accessor &accessor = gltfModel.accessors[source.inverseBindMatrices];
|
|
const tinygltf::BufferView &bufferView = gltfModel.bufferViews[accessor.bufferView];
|
|
const tinygltf::Buffer &buffer = gltfModel.buffers[bufferView.buffer];
|
|
newSkin->inverseBindMatrices.resize(accessor.count);
|
|
memcpy(newSkin->inverseBindMatrices.data(), &buffer.data[accessor.byteOffset + bufferView.byteOffset], accessor.count * sizeof(glm::mat4));
|
|
}
|
|
|
|
skins.push_back(newSkin);
|
|
}
|
|
}
|
|
|
|
void vkglTF::Model::loadImages(tinygltf::Model &gltfModel, vks::VulkanDevice *device, VkQueue transferQueue)
|
|
{
|
|
for (tinygltf::Image &image : gltfModel.images) {
|
|
vkglTF::Texture texture;
|
|
texture.fromglTfImage(image, path, device, transferQueue);
|
|
textures.push_back(texture);
|
|
}
|
|
// Create an empty texture to be used for empty material images
|
|
createEmptyTexture(transferQueue);
|
|
}
|
|
|
|
void vkglTF::Model::loadMaterials(tinygltf::Model &gltfModel)
|
|
{
|
|
for (tinygltf::Material &mat : gltfModel.materials) {
|
|
vkglTF::Material material(device);
|
|
if (mat.values.find("baseColorTexture") != mat.values.end()) {
|
|
material.baseColorTexture = getTexture(gltfModel.textures[mat.values["baseColorTexture"].TextureIndex()].source);
|
|
}
|
|
// Metallic roughness workflow
|
|
if (mat.values.find("metallicRoughnessTexture") != mat.values.end()) {
|
|
material.metallicRoughnessTexture = getTexture(gltfModel.textures[mat.values["metallicRoughnessTexture"].TextureIndex()].source);
|
|
}
|
|
if (mat.values.find("roughnessFactor") != mat.values.end()) {
|
|
material.roughnessFactor = static_cast<float>(mat.values["roughnessFactor"].Factor());
|
|
}
|
|
if (mat.values.find("metallicFactor") != mat.values.end()) {
|
|
material.metallicFactor = static_cast<float>(mat.values["metallicFactor"].Factor());
|
|
}
|
|
if (mat.values.find("baseColorFactor") != mat.values.end()) {
|
|
material.baseColorFactor = glm::make_vec4(mat.values["baseColorFactor"].ColorFactor().data());
|
|
}
|
|
if (mat.additionalValues.find("normalTexture") != mat.additionalValues.end()) {
|
|
material.normalTexture = getTexture(gltfModel.textures[mat.additionalValues["normalTexture"].TextureIndex()].source);
|
|
} else {
|
|
material.normalTexture = &emptyTexture;
|
|
}
|
|
if (mat.additionalValues.find("emissiveTexture") != mat.additionalValues.end()) {
|
|
material.emissiveTexture = getTexture(gltfModel.textures[mat.additionalValues["emissiveTexture"].TextureIndex()].source);
|
|
}
|
|
if (mat.additionalValues.find("occlusionTexture") != mat.additionalValues.end()) {
|
|
material.occlusionTexture = getTexture(gltfModel.textures[mat.additionalValues["occlusionTexture"].TextureIndex()].source);
|
|
}
|
|
if (mat.additionalValues.find("alphaMode") != mat.additionalValues.end()) {
|
|
tinygltf::Parameter param = mat.additionalValues["alphaMode"];
|
|
if (param.string_value == "BLEND") {
|
|
material.alphaMode = Material::ALPHAMODE_BLEND;
|
|
}
|
|
if (param.string_value == "MASK") {
|
|
material.alphaMode = Material::ALPHAMODE_MASK;
|
|
}
|
|
}
|
|
if (mat.additionalValues.find("alphaCutoff") != mat.additionalValues.end()) {
|
|
material.alphaCutoff = static_cast<float>(mat.additionalValues["alphaCutoff"].Factor());
|
|
}
|
|
|
|
materials.push_back(material);
|
|
}
|
|
// Push a default material at the end of the list for meshes with no material assigned
|
|
materials.push_back(Material(device));
|
|
}
|
|
|
|
void vkglTF::Model::loadAnimations(tinygltf::Model &gltfModel)
|
|
{
|
|
for (tinygltf::Animation &anim : gltfModel.animations) {
|
|
vkglTF::Animation animation{};
|
|
animation.name = anim.name;
|
|
if (anim.name.empty()) {
|
|
animation.name = std::to_string(animations.size());
|
|
}
|
|
|
|
// Samplers
|
|
for (auto &samp : anim.samplers) {
|
|
vkglTF::AnimationSampler sampler{};
|
|
|
|
if (samp.interpolation == "LINEAR") {
|
|
sampler.interpolation = AnimationSampler::InterpolationType::LINEAR;
|
|
}
|
|
if (samp.interpolation == "STEP") {
|
|
sampler.interpolation = AnimationSampler::InterpolationType::STEP;
|
|
}
|
|
if (samp.interpolation == "CUBICSPLINE") {
|
|
sampler.interpolation = AnimationSampler::InterpolationType::CUBICSPLINE;
|
|
}
|
|
|
|
// Read sampler input time values
|
|
{
|
|
const tinygltf::Accessor &accessor = gltfModel.accessors[samp.input];
|
|
const tinygltf::BufferView &bufferView = gltfModel.bufferViews[accessor.bufferView];
|
|
const tinygltf::Buffer &buffer = gltfModel.buffers[bufferView.buffer];
|
|
|
|
assert(accessor.componentType == TINYGLTF_COMPONENT_TYPE_FLOAT);
|
|
|
|
float *buf = new float[accessor.count];
|
|
memcpy(buf, &buffer.data[accessor.byteOffset + bufferView.byteOffset], accessor.count * sizeof(float));
|
|
for (size_t index = 0; index < accessor.count; index++) {
|
|
sampler.inputs.push_back(buf[index]);
|
|
}
|
|
delete[] buf;
|
|
for (auto input : sampler.inputs) {
|
|
if (input < animation.start) {
|
|
animation.start = input;
|
|
};
|
|
if (input > animation.end) {
|
|
animation.end = input;
|
|
}
|
|
}
|
|
}
|
|
|
|
// Read sampler output T/R/S values
|
|
{
|
|
const tinygltf::Accessor &accessor = gltfModel.accessors[samp.output];
|
|
const tinygltf::BufferView &bufferView = gltfModel.bufferViews[accessor.bufferView];
|
|
const tinygltf::Buffer &buffer = gltfModel.buffers[bufferView.buffer];
|
|
|
|
assert(accessor.componentType == TINYGLTF_COMPONENT_TYPE_FLOAT);
|
|
|
|
switch (accessor.type) {
|
|
case TINYGLTF_TYPE_VEC3: {
|
|
glm::vec3 *buf = new glm::vec3[accessor.count];
|
|
memcpy(buf, &buffer.data[accessor.byteOffset + bufferView.byteOffset], accessor.count * sizeof(glm::vec3));
|
|
for (size_t index = 0; index < accessor.count; index++) {
|
|
sampler.outputsVec4.push_back(glm::vec4(buf[index], 0.0f));
|
|
}
|
|
delete[] buf;
|
|
break;
|
|
}
|
|
case TINYGLTF_TYPE_VEC4: {
|
|
glm::vec4 *buf = new glm::vec4[accessor.count];
|
|
memcpy(buf, &buffer.data[accessor.byteOffset + bufferView.byteOffset], accessor.count * sizeof(glm::vec4));
|
|
for (size_t index = 0; index < accessor.count; index++) {
|
|
sampler.outputsVec4.push_back(buf[index]);
|
|
}
|
|
delete[] buf;
|
|
break;
|
|
}
|
|
default: {
|
|
std::cout << "unknown type" << std::endl;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
animation.samplers.push_back(sampler);
|
|
}
|
|
|
|
// Channels
|
|
for (auto &source: anim.channels) {
|
|
vkglTF::AnimationChannel channel{};
|
|
|
|
if (source.target_path == "rotation") {
|
|
channel.path = AnimationChannel::PathType::ROTATION;
|
|
}
|
|
if (source.target_path == "translation") {
|
|
channel.path = AnimationChannel::PathType::TRANSLATION;
|
|
}
|
|
if (source.target_path == "scale") {
|
|
channel.path = AnimationChannel::PathType::SCALE;
|
|
}
|
|
if (source.target_path == "weights") {
|
|
std::cout << "weights not yet supported, skipping channel" << std::endl;
|
|
continue;
|
|
}
|
|
channel.samplerIndex = source.sampler;
|
|
channel.node = nodeFromIndex(source.target_node);
|
|
if (!channel.node) {
|
|
continue;
|
|
}
|
|
|
|
animation.channels.push_back(channel);
|
|
}
|
|
|
|
animations.push_back(animation);
|
|
}
|
|
}
|
|
|
|
void vkglTF::Model::loadFromFile(std::string filename, vks::VulkanDevice *device, VkQueue transferQueue, uint32_t fileLoadingFlags, float scale)
|
|
{
|
|
tinygltf::Model gltfModel;
|
|
tinygltf::TinyGLTF gltfContext;
|
|
if (fileLoadingFlags & FileLoadingFlags::DontLoadImages) {
|
|
gltfContext.SetImageLoader(loadImageDataFuncEmpty, nullptr);
|
|
} else {
|
|
gltfContext.SetImageLoader(loadImageDataFunc, nullptr);
|
|
}
|
|
#if defined(__ANDROID__)
|
|
// On Android all assets are packed with the apk in a compressed form, so we need to open them using the asset manager
|
|
// We let tinygltf handle this, by passing the asset manager of our app
|
|
tinygltf::asset_manager = androidApp->activity->assetManager;
|
|
#endif
|
|
size_t pos = filename.find_last_of('/');
|
|
path = filename.substr(0, pos);
|
|
|
|
std::string error, warning;
|
|
|
|
this->device = device;
|
|
|
|
#if defined(__ANDROID__)
|
|
// On Android all assets are packed with the apk in a compressed form, so we need to open them using the asset manager
|
|
// We let tinygltf handle this, by passing the asset manager of our app
|
|
tinygltf::asset_manager = androidApp->activity->assetManager;
|
|
#endif
|
|
bool fileLoaded = gltfContext.LoadASCIIFromFile(&gltfModel, &error, &warning, filename);
|
|
|
|
std::vector<uint32_t> indexBuffer;
|
|
std::vector<Vertex> vertexBuffer;
|
|
|
|
if (fileLoaded) {
|
|
if (!(fileLoadingFlags & FileLoadingFlags::DontLoadImages)) {
|
|
loadImages(gltfModel, device, transferQueue);
|
|
}
|
|
loadMaterials(gltfModel);
|
|
const tinygltf::Scene &scene = gltfModel.scenes[gltfModel.defaultScene > -1 ? gltfModel.defaultScene : 0];
|
|
for (size_t i = 0; i < scene.nodes.size(); i++) {
|
|
const tinygltf::Node node = gltfModel.nodes[scene.nodes[i]];
|
|
loadNode(nullptr, node, scene.nodes[i], gltfModel, indexBuffer, vertexBuffer, scale);
|
|
}
|
|
if (gltfModel.animations.size() > 0) {
|
|
loadAnimations(gltfModel);
|
|
}
|
|
loadSkins(gltfModel);
|
|
|
|
for (auto node : linearNodes) {
|
|
// Assign skins
|
|
if (node->skinIndex > -1) {
|
|
node->skin = skins[node->skinIndex];
|
|
}
|
|
// Initial pose
|
|
if (node->mesh) {
|
|
node->update();
|
|
}
|
|
}
|
|
}
|
|
else {
|
|
// TODO: throw
|
|
vks::tools::exitFatal("Could not load glTF file \"" + filename + "\": " + error, -1);
|
|
return;
|
|
}
|
|
|
|
// Pre-Calculations for requested features
|
|
if ((fileLoadingFlags & FileLoadingFlags::PreTransformVertices) || (fileLoadingFlags & FileLoadingFlags::PreMultiplyVertexColors) || (fileLoadingFlags & FileLoadingFlags::FlipY)) {
|
|
const bool preTransform = fileLoadingFlags & FileLoadingFlags::PreTransformVertices;
|
|
const bool preMultiplyColor = fileLoadingFlags & FileLoadingFlags::PreMultiplyVertexColors;
|
|
const bool flipY = fileLoadingFlags & FileLoadingFlags::FlipY;
|
|
for (Node* node : linearNodes) {
|
|
if (node->mesh) {
|
|
const glm::mat4 localMatrix = node->getMatrix();
|
|
for (Primitive* primitive : node->mesh->primitives) {
|
|
for (uint32_t i = 0; i < primitive->vertexCount; i++) {
|
|
Vertex& vertex = vertexBuffer[primitive->firstVertex + i];
|
|
// Pre-transform vertex positions by node-hierarchy
|
|
if (preTransform) {
|
|
vertex.pos = glm::vec3(localMatrix * glm::vec4(vertex.pos, 1.0f));
|
|
vertex.normal = glm::normalize(glm::mat3(localMatrix) * vertex.normal);
|
|
}
|
|
// Flip Y-Axis of vertex positions
|
|
if (flipY) {
|
|
vertex.pos.y *= -1.0f;
|
|
vertex.normal.y *= -1.0f;
|
|
}
|
|
// Pre-Multiply vertex colors with material base color
|
|
if (preMultiplyColor) {
|
|
vertex.color = primitive->material.baseColorFactor * vertex.color;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
for (auto extension : gltfModel.extensionsUsed) {
|
|
if (extension == "KHR_materials_pbrSpecularGlossiness") {
|
|
std::cout << "Required extension: " << extension;
|
|
metallicRoughnessWorkflow = false;
|
|
}
|
|
}
|
|
|
|
size_t vertexBufferSize = vertexBuffer.size() * sizeof(Vertex);
|
|
size_t indexBufferSize = indexBuffer.size() * sizeof(uint32_t);
|
|
indices.count = static_cast<uint32_t>(indexBuffer.size());
|
|
vertices.count = static_cast<uint32_t>(vertexBuffer.size());
|
|
|
|
assert((vertexBufferSize > 0) && (indexBufferSize > 0));
|
|
|
|
struct StagingBuffer {
|
|
VkBuffer buffer;
|
|
VkDeviceMemory memory;
|
|
} vertexStaging, indexStaging;
|
|
|
|
// Create staging buffers
|
|
// Vertex data
|
|
VK_CHECK_RESULT(device->createBuffer(
|
|
VK_BUFFER_USAGE_TRANSFER_SRC_BIT,
|
|
VK_MEMORY_PROPERTY_HOST_VISIBLE_BIT | VK_MEMORY_PROPERTY_HOST_COHERENT_BIT,
|
|
vertexBufferSize,
|
|
&vertexStaging.buffer,
|
|
&vertexStaging.memory,
|
|
vertexBuffer.data()));
|
|
// Index data
|
|
VK_CHECK_RESULT(device->createBuffer(
|
|
VK_BUFFER_USAGE_TRANSFER_SRC_BIT,
|
|
VK_MEMORY_PROPERTY_HOST_VISIBLE_BIT | VK_MEMORY_PROPERTY_HOST_COHERENT_BIT,
|
|
indexBufferSize,
|
|
&indexStaging.buffer,
|
|
&indexStaging.memory,
|
|
indexBuffer.data()));
|
|
|
|
// Create device local buffers
|
|
// Vertex buffer
|
|
VK_CHECK_RESULT(device->createBuffer(
|
|
VK_BUFFER_USAGE_VERTEX_BUFFER_BIT | VK_BUFFER_USAGE_TRANSFER_DST_BIT | memoryPropertyFlags,
|
|
VK_MEMORY_PROPERTY_DEVICE_LOCAL_BIT,
|
|
vertexBufferSize,
|
|
&vertices.buffer,
|
|
&vertices.memory));
|
|
// Index buffer
|
|
VK_CHECK_RESULT(device->createBuffer(
|
|
VK_BUFFER_USAGE_INDEX_BUFFER_BIT | VK_BUFFER_USAGE_TRANSFER_DST_BIT | memoryPropertyFlags,
|
|
VK_MEMORY_PROPERTY_DEVICE_LOCAL_BIT,
|
|
indexBufferSize,
|
|
&indices.buffer,
|
|
&indices.memory));
|
|
|
|
// Copy from staging buffers
|
|
VkCommandBuffer copyCmd = device->createCommandBuffer(VK_COMMAND_BUFFER_LEVEL_PRIMARY, true);
|
|
|
|
VkBufferCopy copyRegion = {};
|
|
|
|
copyRegion.size = vertexBufferSize;
|
|
vkCmdCopyBuffer(copyCmd, vertexStaging.buffer, vertices.buffer, 1, ©Region);
|
|
|
|
copyRegion.size = indexBufferSize;
|
|
vkCmdCopyBuffer(copyCmd, indexStaging.buffer, indices.buffer, 1, ©Region);
|
|
|
|
device->flushCommandBuffer(copyCmd, transferQueue, true);
|
|
|
|
vkDestroyBuffer(device->logicalDevice, vertexStaging.buffer, nullptr);
|
|
vkFreeMemory(device->logicalDevice, vertexStaging.memory, nullptr);
|
|
vkDestroyBuffer(device->logicalDevice, indexStaging.buffer, nullptr);
|
|
vkFreeMemory(device->logicalDevice, indexStaging.memory, nullptr);
|
|
|
|
getSceneDimensions();
|
|
|
|
// Setup descriptors
|
|
uint32_t uboCount{ 0 };
|
|
uint32_t imageCount{ 0 };
|
|
for (auto node : linearNodes) {
|
|
if (node->mesh) {
|
|
uboCount++;
|
|
}
|
|
}
|
|
for (auto material : materials) {
|
|
if (material.baseColorTexture != nullptr) {
|
|
imageCount++;
|
|
}
|
|
}
|
|
std::vector<VkDescriptorPoolSize> poolSizes = {
|
|
{ VK_DESCRIPTOR_TYPE_UNIFORM_BUFFER, uboCount },
|
|
};
|
|
if (imageCount > 0) {
|
|
if (descriptorBindingFlags & DescriptorBindingFlags::ImageBaseColor) {
|
|
poolSizes.push_back({ VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER, imageCount });
|
|
}
|
|
if (descriptorBindingFlags & DescriptorBindingFlags::ImageNormalMap) {
|
|
poolSizes.push_back({ VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER, imageCount });
|
|
}
|
|
}
|
|
VkDescriptorPoolCreateInfo descriptorPoolCI{};
|
|
descriptorPoolCI.sType = VK_STRUCTURE_TYPE_DESCRIPTOR_POOL_CREATE_INFO;
|
|
descriptorPoolCI.poolSizeCount = static_cast<uint32_t>(poolSizes.size());
|
|
descriptorPoolCI.pPoolSizes = poolSizes.data();
|
|
descriptorPoolCI.maxSets = uboCount + imageCount;
|
|
VK_CHECK_RESULT(vkCreateDescriptorPool(device->logicalDevice, &descriptorPoolCI, nullptr, &descriptorPool));
|
|
|
|
// Descriptors for per-node uniform buffers
|
|
{
|
|
// Layout is global, so only create if it hasn't already been created before
|
|
if (descriptorSetLayoutUbo == VK_NULL_HANDLE) {
|
|
std::vector<VkDescriptorSetLayoutBinding> setLayoutBindings = {
|
|
vks::initializers::descriptorSetLayoutBinding(VK_DESCRIPTOR_TYPE_UNIFORM_BUFFER, VK_SHADER_STAGE_VERTEX_BIT, 0),
|
|
};
|
|
VkDescriptorSetLayoutCreateInfo descriptorLayoutCI{};
|
|
descriptorLayoutCI.sType = VK_STRUCTURE_TYPE_DESCRIPTOR_SET_LAYOUT_CREATE_INFO;
|
|
descriptorLayoutCI.bindingCount = static_cast<uint32_t>(setLayoutBindings.size());
|
|
descriptorLayoutCI.pBindings = setLayoutBindings.data();
|
|
VK_CHECK_RESULT(vkCreateDescriptorSetLayout(device->logicalDevice, &descriptorLayoutCI, nullptr, &descriptorSetLayoutUbo));
|
|
}
|
|
for (auto node : nodes) {
|
|
prepareNodeDescriptor(node, descriptorSetLayoutUbo);
|
|
}
|
|
}
|
|
|
|
// Descriptors for per-material images
|
|
{
|
|
// Layout is global, so only create if it hasn't already been created before
|
|
if (descriptorSetLayoutImage == VK_NULL_HANDLE) {
|
|
std::vector<VkDescriptorSetLayoutBinding> setLayoutBindings{};
|
|
if (descriptorBindingFlags & DescriptorBindingFlags::ImageBaseColor) {
|
|
setLayoutBindings.push_back(vks::initializers::descriptorSetLayoutBinding(VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER, VK_SHADER_STAGE_FRAGMENT_BIT, static_cast<uint32_t>(setLayoutBindings.size())));
|
|
}
|
|
if (descriptorBindingFlags & DescriptorBindingFlags::ImageNormalMap) {
|
|
setLayoutBindings.push_back(vks::initializers::descriptorSetLayoutBinding(VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER, VK_SHADER_STAGE_FRAGMENT_BIT, static_cast<uint32_t>(setLayoutBindings.size())));
|
|
}
|
|
VkDescriptorSetLayoutCreateInfo descriptorLayoutCI{};
|
|
descriptorLayoutCI.sType = VK_STRUCTURE_TYPE_DESCRIPTOR_SET_LAYOUT_CREATE_INFO;
|
|
descriptorLayoutCI.bindingCount = static_cast<uint32_t>(setLayoutBindings.size());
|
|
descriptorLayoutCI.pBindings = setLayoutBindings.data();
|
|
VK_CHECK_RESULT(vkCreateDescriptorSetLayout(device->logicalDevice, &descriptorLayoutCI, nullptr, &descriptorSetLayoutImage));
|
|
}
|
|
for (auto& material : materials) {
|
|
if (material.baseColorTexture != nullptr) {
|
|
material.createDescriptorSet(descriptorPool, vkglTF::descriptorSetLayoutImage, descriptorBindingFlags);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
void vkglTF::Model::bindBuffers(VkCommandBuffer commandBuffer)
|
|
{
|
|
const VkDeviceSize offsets[1] = {0};
|
|
vkCmdBindVertexBuffers(commandBuffer, 0, 1, &vertices.buffer, offsets);
|
|
vkCmdBindIndexBuffer(commandBuffer, indices.buffer, 0, VK_INDEX_TYPE_UINT32);
|
|
buffersBound = true;
|
|
}
|
|
|
|
void vkglTF::Model::drawNode(Node *node, VkCommandBuffer commandBuffer, uint32_t renderFlags, VkPipelineLayout pipelineLayout, uint32_t bindImageSet)
|
|
{
|
|
if (node->mesh) {
|
|
for (Primitive* primitive : node->mesh->primitives) {
|
|
bool skip = false;
|
|
const vkglTF::Material& material = primitive->material;
|
|
if (renderFlags & RenderFlags::RenderOpaqueNodes) {
|
|
skip = (material.alphaMode != Material::ALPHAMODE_OPAQUE);
|
|
}
|
|
if (renderFlags & RenderFlags::RenderAlphaMaskedNodes) {
|
|
skip = (material.alphaMode != Material::ALPHAMODE_MASK);
|
|
}
|
|
if (renderFlags & RenderFlags::RenderAlphaBlendedNodes) {
|
|
skip = (material.alphaMode != Material::ALPHAMODE_BLEND);
|
|
}
|
|
if (!skip) {
|
|
if (renderFlags & RenderFlags::BindImages) {
|
|
vkCmdBindDescriptorSets(commandBuffer, VK_PIPELINE_BIND_POINT_GRAPHICS, pipelineLayout, bindImageSet, 1, &material.descriptorSet, 0, nullptr);
|
|
}
|
|
vkCmdDrawIndexed(commandBuffer, primitive->indexCount, 1, primitive->firstIndex, 0, 0);
|
|
}
|
|
}
|
|
}
|
|
for (auto& child : node->children) {
|
|
drawNode(child, commandBuffer, renderFlags, pipelineLayout, bindImageSet);
|
|
}
|
|
}
|
|
|
|
void vkglTF::Model::draw(VkCommandBuffer commandBuffer, uint32_t renderFlags, VkPipelineLayout pipelineLayout, uint32_t bindImageSet)
|
|
{
|
|
if (!buffersBound) {
|
|
const VkDeviceSize offsets[1] = {0};
|
|
vkCmdBindVertexBuffers(commandBuffer, 0, 1, &vertices.buffer, offsets);
|
|
vkCmdBindIndexBuffer(commandBuffer, indices.buffer, 0, VK_INDEX_TYPE_UINT32);
|
|
}
|
|
for (auto& node : nodes) {
|
|
drawNode(node, commandBuffer, renderFlags, pipelineLayout, bindImageSet);
|
|
}
|
|
}
|
|
|
|
void vkglTF::Model::getNodeDimensions(Node *node, glm::vec3 &min, glm::vec3 &max)
|
|
{
|
|
if (node->mesh) {
|
|
for (Primitive *primitive : node->mesh->primitives) {
|
|
glm::vec4 locMin = glm::vec4(primitive->dimensions.min, 1.0f) * node->getMatrix();
|
|
glm::vec4 locMax = glm::vec4(primitive->dimensions.max, 1.0f) * node->getMatrix();
|
|
if (locMin.x < min.x) { min.x = locMin.x; }
|
|
if (locMin.y < min.y) { min.y = locMin.y; }
|
|
if (locMin.z < min.z) { min.z = locMin.z; }
|
|
if (locMax.x > max.x) { max.x = locMax.x; }
|
|
if (locMax.y > max.y) { max.y = locMax.y; }
|
|
if (locMax.z > max.z) { max.z = locMax.z; }
|
|
}
|
|
}
|
|
for (auto child : node->children) {
|
|
getNodeDimensions(child, min, max);
|
|
}
|
|
}
|
|
|
|
void vkglTF::Model::getSceneDimensions()
|
|
{
|
|
dimensions.min = glm::vec3(FLT_MAX);
|
|
dimensions.max = glm::vec3(-FLT_MAX);
|
|
for (auto node : nodes) {
|
|
getNodeDimensions(node, dimensions.min, dimensions.max);
|
|
}
|
|
dimensions.size = dimensions.max - dimensions.min;
|
|
dimensions.center = (dimensions.min + dimensions.max) / 2.0f;
|
|
dimensions.radius = glm::distance(dimensions.min, dimensions.max) / 2.0f;
|
|
}
|
|
|
|
void vkglTF::Model::updateAnimation(uint32_t index, float time)
|
|
{
|
|
if (index > static_cast<uint32_t>(animations.size()) - 1) {
|
|
std::cout << "No animation with index " << index << std::endl;
|
|
return;
|
|
}
|
|
Animation &animation = animations[index];
|
|
|
|
bool updated = false;
|
|
for (auto& channel : animation.channels) {
|
|
vkglTF::AnimationSampler &sampler = animation.samplers[channel.samplerIndex];
|
|
if (sampler.inputs.size() > sampler.outputsVec4.size()) {
|
|
continue;
|
|
}
|
|
|
|
for (auto i = 0; i < sampler.inputs.size() - 1; i++) {
|
|
if ((time >= sampler.inputs[i]) && (time <= sampler.inputs[i + 1])) {
|
|
float u = std::max(0.0f, time - sampler.inputs[i]) / (sampler.inputs[i + 1] - sampler.inputs[i]);
|
|
if (u <= 1.0f) {
|
|
switch (channel.path) {
|
|
case vkglTF::AnimationChannel::PathType::TRANSLATION: {
|
|
glm::vec4 trans = glm::mix(sampler.outputsVec4[i], sampler.outputsVec4[i + 1], u);
|
|
channel.node->translation = glm::vec3(trans);
|
|
break;
|
|
}
|
|
case vkglTF::AnimationChannel::PathType::SCALE: {
|
|
glm::vec4 trans = glm::mix(sampler.outputsVec4[i], sampler.outputsVec4[i + 1], u);
|
|
channel.node->scale = glm::vec3(trans);
|
|
break;
|
|
}
|
|
case vkglTF::AnimationChannel::PathType::ROTATION: {
|
|
glm::quat q1;
|
|
q1.x = sampler.outputsVec4[i].x;
|
|
q1.y = sampler.outputsVec4[i].y;
|
|
q1.z = sampler.outputsVec4[i].z;
|
|
q1.w = sampler.outputsVec4[i].w;
|
|
glm::quat q2;
|
|
q2.x = sampler.outputsVec4[i + 1].x;
|
|
q2.y = sampler.outputsVec4[i + 1].y;
|
|
q2.z = sampler.outputsVec4[i + 1].z;
|
|
q2.w = sampler.outputsVec4[i + 1].w;
|
|
channel.node->rotation = glm::normalize(glm::slerp(q1, q2, u));
|
|
break;
|
|
}
|
|
}
|
|
updated = true;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
if (updated) {
|
|
for (auto &node : nodes) {
|
|
node->update();
|
|
}
|
|
}
|
|
}
|
|
|
|
/*
|
|
Helper functions
|
|
*/
|
|
vkglTF::Node* vkglTF::Model::findNode(Node *parent, uint32_t index) {
|
|
Node* nodeFound = nullptr;
|
|
if (parent->index == index) {
|
|
return parent;
|
|
}
|
|
for (auto& child : parent->children) {
|
|
nodeFound = findNode(child, index);
|
|
if (nodeFound) {
|
|
break;
|
|
}
|
|
}
|
|
return nodeFound;
|
|
}
|
|
|
|
vkglTF::Node* vkglTF::Model::nodeFromIndex(uint32_t index) {
|
|
Node* nodeFound = nullptr;
|
|
for (auto &node : nodes) {
|
|
nodeFound = findNode(node, index);
|
|
if (nodeFound) {
|
|
break;
|
|
}
|
|
}
|
|
return nodeFound;
|
|
}
|
|
|
|
void vkglTF::Model::prepareNodeDescriptor(vkglTF::Node* node, VkDescriptorSetLayout descriptorSetLayout) {
|
|
if (node->mesh) {
|
|
VkDescriptorSetAllocateInfo descriptorSetAllocInfo{};
|
|
descriptorSetAllocInfo.sType = VK_STRUCTURE_TYPE_DESCRIPTOR_SET_ALLOCATE_INFO;
|
|
descriptorSetAllocInfo.descriptorPool = descriptorPool;
|
|
descriptorSetAllocInfo.pSetLayouts = &descriptorSetLayout;
|
|
descriptorSetAllocInfo.descriptorSetCount = 1;
|
|
VK_CHECK_RESULT(vkAllocateDescriptorSets(device->logicalDevice, &descriptorSetAllocInfo, &node->mesh->uniformBuffer.descriptorSet));
|
|
|
|
VkWriteDescriptorSet writeDescriptorSet{};
|
|
writeDescriptorSet.sType = VK_STRUCTURE_TYPE_WRITE_DESCRIPTOR_SET;
|
|
writeDescriptorSet.descriptorType = VK_DESCRIPTOR_TYPE_UNIFORM_BUFFER;
|
|
writeDescriptorSet.descriptorCount = 1;
|
|
writeDescriptorSet.dstSet = node->mesh->uniformBuffer.descriptorSet;
|
|
writeDescriptorSet.dstBinding = 0;
|
|
writeDescriptorSet.pBufferInfo = &node->mesh->uniformBuffer.descriptor;
|
|
|
|
vkUpdateDescriptorSets(device->logicalDevice, 1, &writeDescriptorSet, 0, nullptr);
|
|
}
|
|
for (auto& child : node->children) {
|
|
prepareNodeDescriptor(child, descriptorSetLayout);
|
|
}
|
|
}
|