1031 lines
39 KiB
C++
1031 lines
39 KiB
C++
/*
|
|
* Vulkan Example - glTF scene loading and rendering
|
|
*
|
|
* Copyright (C) 2020-2022 by Sascha Willems - www.saschawillems.de
|
|
*
|
|
* This code is licensed under the MIT license (MIT) (http://opensource.org/licenses/MIT)
|
|
*/
|
|
|
|
/*
|
|
* Shows how to load and display a simple scene from a glTF file
|
|
* Note that this isn't a complete glTF loader and only basic functions are shown here
|
|
* This means no complex materials, no animations, no skins, etc.
|
|
* For details on how glTF 2.0 works, see the official spec at https://github.com/KhronosGroup/glTF/tree/master/specification/2.0
|
|
*
|
|
* Other samples will load models using a dedicated model loader with more features (see base/VulkanglTFModel.hpp)
|
|
*
|
|
* If you are looking for a complete glTF implementation, check out https://github.com/SaschaWillems/Vulkan-glTF-PBR/
|
|
*/
|
|
|
|
|
|
#include "homework1.h"
|
|
|
|
|
|
VulkanglTFModel::~VulkanglTFModel()
|
|
{
|
|
for (auto node : nodes) {
|
|
delete node;
|
|
}
|
|
// Release all Vulkan resources allocated for the model
|
|
vkDestroyBuffer(vulkanDevice->logicalDevice, vertices.buffer, nullptr);
|
|
vkFreeMemory(vulkanDevice->logicalDevice, vertices.memory, nullptr);
|
|
vkDestroyBuffer(vulkanDevice->logicalDevice, indices.buffer, nullptr);
|
|
vkFreeMemory(vulkanDevice->logicalDevice, indices.memory, nullptr);
|
|
for (Image image : images) {
|
|
vkDestroyImageView(vulkanDevice->logicalDevice, image.texture.view, nullptr);
|
|
vkDestroyImage(vulkanDevice->logicalDevice, image.texture.image, nullptr);
|
|
vkDestroySampler(vulkanDevice->logicalDevice, image.texture.sampler, nullptr);
|
|
vkFreeMemory(vulkanDevice->logicalDevice, image.texture.deviceMemory, nullptr);
|
|
}
|
|
for (Skin skin : skins)
|
|
{
|
|
skin.ssbo.destroy();
|
|
}
|
|
}
|
|
|
|
/*
|
|
glTF loading functions
|
|
|
|
The following functions take a glTF input model loaded via tinyglTF and convert all required data into our own structure
|
|
*/
|
|
|
|
void VulkanglTFModel::loadImages(tinygltf::Model& input)
|
|
{
|
|
// Images can be stored inside the glTF (which is the case for the sample model), so instead of directly
|
|
// loading them from disk, we fetch them from the glTF loader and upload the buffers
|
|
images.resize(input.images.size());
|
|
for (size_t i = 0; i < input.images.size(); i++) {
|
|
tinygltf::Image& glTFImage = input.images[i];
|
|
// Get the image data from the glTF loader
|
|
unsigned char* buffer = nullptr;
|
|
VkDeviceSize bufferSize = 0;
|
|
bool deleteBuffer = false;
|
|
// We convert RGB-only images to RGBA, as most devices don't support RGB-formats in Vulkan
|
|
if (glTFImage.component == 3) {
|
|
bufferSize = glTFImage.width * glTFImage.height * 4;
|
|
buffer = new unsigned char[bufferSize];
|
|
unsigned char* rgba = buffer;
|
|
unsigned char* rgb = &glTFImage.image[0];
|
|
for (size_t i = 0; i < glTFImage.width * glTFImage.height; ++i) {
|
|
memcpy(rgba, rgb, sizeof(unsigned char) * 3);
|
|
rgba += 4;
|
|
rgb += 3;
|
|
}
|
|
deleteBuffer = true;
|
|
}
|
|
else {
|
|
buffer = &glTFImage.image[0];
|
|
bufferSize = glTFImage.image.size();
|
|
}
|
|
// Load texture from image buffer
|
|
images[i].texture.fromBuffer(buffer, bufferSize, VK_FORMAT_R8G8B8A8_UNORM, glTFImage.width, glTFImage.height, vulkanDevice, copyQueue);
|
|
if (deleteBuffer) {
|
|
delete[] buffer;
|
|
}
|
|
}
|
|
}
|
|
|
|
void VulkanglTFModel::loadTextures(tinygltf::Model& input)
|
|
{
|
|
textures.resize(input.textures.size());
|
|
for (size_t i = 0; i < input.textures.size(); i++) {
|
|
textures[i].imageIndex = input.textures[i].source;
|
|
}
|
|
}
|
|
|
|
void VulkanglTFModel::loadMaterials(tinygltf::Model& input)
|
|
{
|
|
materials.resize(input.materials.size());
|
|
for (size_t i = 0; i < input.materials.size(); i++) {
|
|
// We only read the most basic properties required for our sample
|
|
tinygltf::Material glTFMaterial = input.materials[i];
|
|
// Get the base color factor
|
|
if (glTFMaterial.values.find("baseColorFactor") != glTFMaterial.values.end()) {
|
|
materials[i].baseColorFactor = glm::make_vec4(glTFMaterial.values["baseColorFactor"].ColorFactor().data());
|
|
}
|
|
// Get base color texture index
|
|
if (glTFMaterial.values.find("baseColorTexture") != glTFMaterial.values.end()) {
|
|
materials[i].baseColorTextureIndex = glTFMaterial.values["baseColorTexture"].TextureIndex();
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
//animation loader
|
|
void VulkanglTFModel::loadAnimations(tinygltf::Model& input)
|
|
{
|
|
animations.resize(input.animations.size());
|
|
|
|
for (size_t i = 0; i < input.animations.size(); i++)
|
|
{
|
|
tinygltf::Animation glTFAnimation = input.animations[i];
|
|
animations[i].name = glTFAnimation.name;
|
|
|
|
// Samplers
|
|
animations[i].samplers.resize(glTFAnimation.samplers.size());
|
|
for (size_t j = 0; j < glTFAnimation.samplers.size(); j++)
|
|
{
|
|
tinygltf::AnimationSampler glTFSampler = glTFAnimation.samplers[j];
|
|
AnimationSampler& dstSampler = animations[i].samplers[j];
|
|
dstSampler.interpolation = glTFSampler.interpolation;
|
|
|
|
// Read sampler keyframe input time values
|
|
{
|
|
const tinygltf::Accessor& accessor = input.accessors[glTFSampler.input];
|
|
const tinygltf::BufferView& bufferView = input.bufferViews[accessor.bufferView];
|
|
const tinygltf::Buffer& buffer = input.buffers[bufferView.buffer];
|
|
const void* dataPtr = &buffer.data[accessor.byteOffset + bufferView.byteOffset];
|
|
const float* buf = static_cast<const float*>(dataPtr);
|
|
for (size_t index = 0; index < accessor.count; index++)
|
|
{
|
|
dstSampler.inputs.push_back(buf[index]);
|
|
}
|
|
// Adjust animation's start and end times
|
|
for (auto input : animations[i].samplers[j].inputs)
|
|
{
|
|
if (input < animations[i].start)
|
|
{
|
|
animations[i].start = input;
|
|
};
|
|
if (input > animations[i].end)
|
|
{
|
|
animations[i].end = input;
|
|
}
|
|
}
|
|
}
|
|
|
|
// Read sampler keyframe output translate/rotate/scale values
|
|
{
|
|
const tinygltf::Accessor& accessor = input.accessors[glTFSampler.output];
|
|
const tinygltf::BufferView& bufferView = input.bufferViews[accessor.bufferView];
|
|
const tinygltf::Buffer& buffer = input.buffers[bufferView.buffer];
|
|
const void* dataPtr = &buffer.data[accessor.byteOffset + bufferView.byteOffset];
|
|
switch (accessor.type)
|
|
{
|
|
case TINYGLTF_TYPE_VEC3: {
|
|
const glm::vec3* buf = static_cast<const glm::vec3*>(dataPtr);
|
|
for (size_t index = 0; index < accessor.count; index++)
|
|
{
|
|
dstSampler.outputsVec4.push_back(glm::vec4(buf[index], 0.0f));
|
|
}
|
|
break;
|
|
}
|
|
case TINYGLTF_TYPE_VEC4: {
|
|
const glm::vec4* buf = static_cast<const glm::vec4*>(dataPtr);
|
|
for (size_t index = 0; index < accessor.count; index++)
|
|
{
|
|
dstSampler.outputsVec4.push_back(buf[index]);
|
|
}
|
|
break;
|
|
}
|
|
default: {
|
|
std::cout << "unknown type" << std::endl;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
// Channels
|
|
animations[i].channels.resize(glTFAnimation.channels.size());
|
|
for (size_t j = 0; j < glTFAnimation.channels.size(); j++)
|
|
{
|
|
tinygltf::AnimationChannel glTFChannel = glTFAnimation.channels[j];
|
|
AnimationChannel& dstChannel = animations[i].channels[j];
|
|
dstChannel.path = glTFChannel.target_path;
|
|
dstChannel.samplerIndex = glTFChannel.sampler;
|
|
dstChannel.node = nodeFromIndex(glTFChannel.target_node);
|
|
}
|
|
}
|
|
|
|
|
|
}
|
|
|
|
// load skins from glTF model
|
|
void VulkanglTFModel::loadSkins(tinygltf::Model& input)
|
|
{
|
|
|
|
skins.resize(input.skins.size());
|
|
|
|
for (size_t i = 0; i < input.skins.size(); i++)
|
|
{
|
|
tinygltf::Skin glTFSkin = input.skins[i];
|
|
|
|
skins[i].name = glTFSkin.name;
|
|
//follow the tree structure,find the root node of skeleton by index
|
|
skins[i].skeletonRoot = nodeFromIndex(glTFSkin.skeleton);
|
|
|
|
//join nodes
|
|
for (int jointIndex : glTFSkin.joints)
|
|
{
|
|
Node* node = nodeFromIndex(jointIndex);
|
|
if (node)
|
|
{
|
|
skins[i].joints.push_back(node);
|
|
}
|
|
}
|
|
//get the inverse bind matrices
|
|
if (glTFSkin.inverseBindMatrices > -1)
|
|
{
|
|
const tinygltf::Accessor& accessor = input.accessors[glTFSkin.inverseBindMatrices];
|
|
const tinygltf::BufferView& bufferview = input.bufferViews[accessor.bufferView];
|
|
const tinygltf::Buffer& buffer = input.buffers[bufferview.buffer];
|
|
skins[i].inverseBindMatrices.resize(accessor.count);
|
|
memcpy(skins[i].inverseBindMatrices.data(), &buffer.data[accessor.byteOffset + bufferview.byteOffset], accessor.count * sizeof(glm::mat4));
|
|
|
|
//create a host visible shader buffer to store inverse bind matrices for this skin
|
|
VK_CHECK_RESULT(
|
|
vulkanDevice->createBuffer(
|
|
VK_BUFFER_USAGE_STORAGE_BUFFER_BIT,
|
|
VK_MEMORY_PROPERTY_HOST_VISIBLE_BIT | VK_MEMORY_PROPERTY_HOST_COHERENT_BIT,
|
|
&skins[i].ssbo,
|
|
sizeof(glm::mat4) * skins[i].inverseBindMatrices.size(),
|
|
skins[i].inverseBindMatrices.data()));
|
|
VK_CHECK_RESULT(skins[i].ssbo.map());
|
|
}
|
|
}
|
|
|
|
|
|
}
|
|
|
|
//glTF nodes loading helper function
|
|
//rewrite node loader,simplify logic
|
|
//Search node from parent to children by index
|
|
VulkanglTFModel::Node* VulkanglTFModel::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;
|
|
} //iterate vector of nodes to check weather nodes exist or not
|
|
VulkanglTFModel::Node* VulkanglTFModel::nodeFromIndex(uint32_t index)
|
|
{
|
|
Node* nodeFound = nullptr;
|
|
for (auto& node : nodes)
|
|
{
|
|
nodeFound = findNode(node, index);
|
|
if (nodeFound)
|
|
{
|
|
break;
|
|
}
|
|
}
|
|
return nodeFound;
|
|
}
|
|
|
|
|
|
//node loader
|
|
void VulkanglTFModel::loadNode(const tinygltf::Node& inputNode, const tinygltf::Model& input, VulkanglTFModel::Node* parent, uint32_t nodeIndex, std::vector<uint32_t>& indexBuffer, std::vector<VulkanglTFModel::Vertex>& vertexBuffer)
|
|
{
|
|
VulkanglTFModel::Node* node = new VulkanglTFModel::Node{};
|
|
node->parent = parent;
|
|
node->matrix = glm::mat4(1.0f);
|
|
node->index = nodeIndex;
|
|
node->skin = inputNode.skin;
|
|
|
|
//get distributions of node
|
|
if (inputNode.translation.size() == 3)
|
|
{
|
|
node->translation = glm::make_vec3(inputNode.translation.data());
|
|
}
|
|
if (inputNode.scale.size() == 3)
|
|
{
|
|
node->scale = glm::make_vec3(inputNode.scale.data());
|
|
}
|
|
if (inputNode.rotation.size() == 4)
|
|
{ //rotation is given by quaternion
|
|
glm::quat q = glm::make_quat(inputNode.rotation.data());
|
|
node->rotation = glm::mat4(q);
|
|
}
|
|
if (inputNode.matrix.size() == 16)
|
|
{
|
|
node->matrix = glm::make_mat4x4(inputNode.matrix.data());
|
|
}
|
|
|
|
//find children of nodes if exists
|
|
if (inputNode.children.size() > 0)
|
|
{
|
|
for (size_t i = 0; i < inputNode.children.size(); i++)
|
|
{
|
|
loadNode(input.nodes[inputNode.children[i]], input, node, inputNode.children[i], indexBuffer, vertexBuffer);
|
|
}
|
|
|
|
}
|
|
//load meshes in nodes if exists
|
|
if (inputNode.mesh > -1)
|
|
{
|
|
const tinygltf::Mesh mesh = input.meshes[inputNode.mesh];
|
|
for (size_t i = 0; i < mesh.primitives.size(); i++)
|
|
{
|
|
const tinygltf::Primitive& glTFPrimmitive = mesh.primitives[i];
|
|
uint32_t firstIndex = static_cast<uint32_t>(indexBuffer.size());
|
|
uint32_t vertexStart = static_cast<uint32_t>(vertexBuffer.size());
|
|
uint32_t indexCount = 0;
|
|
//vertices
|
|
const float* positionBuffer = nullptr;
|
|
const float* normalsBuffer = nullptr;
|
|
const float* texcoordsBuffer = nullptr;
|
|
const float* tangentsBuffer = nullptr;
|
|
//skin joints
|
|
const float* jointWeightsBuffer = nullptr;
|
|
const uint16_t * jointIndicesBuffer = nullptr;
|
|
size_t vertexCount = 0;
|
|
bool hasSkin = false;
|
|
//get buffer by index in primmitive.attributes
|
|
{
|
|
if (glTFPrimmitive.attributes.find("POSITION") != glTFPrimmitive.attributes.end())
|
|
{
|
|
const tinygltf::Accessor& accessor = input.accessors[glTFPrimmitive.attributes.find("POSITION")->second];
|
|
const tinygltf::BufferView view = input.bufferViews[accessor.bufferView];
|
|
positionBuffer = reinterpret_cast<const float*> (&(input.buffers[view.buffer].data[accessor.byteOffset + view.byteOffset]));
|
|
vertexCount = accessor.count;
|
|
}
|
|
if (glTFPrimmitive.attributes.find("NORMAL") != glTFPrimmitive.attributes.end())
|
|
{
|
|
const tinygltf::Accessor& accessor = input.accessors[glTFPrimmitive.attributes.find("NORMAL")->second];
|
|
const tinygltf::BufferView &view = input.bufferViews[accessor.bufferView];
|
|
normalsBuffer = reinterpret_cast<const float*> (&(input.buffers[view.buffer].data[accessor.byteOffset + view.byteOffset]));
|
|
|
|
}
|
|
if (glTFPrimmitive.attributes.find("TEXCOORD_0") != glTFPrimmitive.attributes.end())
|
|
{
|
|
const tinygltf::Accessor& accessor = input.accessors[glTFPrimmitive.attributes.find("TEXCOORD_0")->second];
|
|
const tinygltf::BufferView &view = input.bufferViews[accessor.bufferView];
|
|
texcoordsBuffer = reinterpret_cast<const float*> (&(input.buffers[view.buffer].data[accessor.byteOffset + view.byteOffset]));
|
|
|
|
}
|
|
if (glTFPrimmitive.attributes.find("JOINTS_0") != glTFPrimmitive.attributes.end())
|
|
{
|
|
const tinygltf::Accessor& accessor = input.accessors[glTFPrimmitive.attributes.find("JOINTS_0")->second];
|
|
const tinygltf::BufferView &view = input.bufferViews[accessor.bufferView];
|
|
jointIndicesBuffer = reinterpret_cast<const uint16_t*> (&(input.buffers[view.buffer].data[accessor.byteOffset + view.byteOffset]));
|
|
|
|
}
|
|
if (glTFPrimmitive.attributes.find("WEIGHTS_0") != glTFPrimmitive.attributes.end())
|
|
{
|
|
const tinygltf::Accessor& accessor = input.accessors[glTFPrimmitive.attributes.find("WEIGHTS_0")->second];
|
|
const tinygltf::BufferView &view = input.bufferViews[accessor.bufferView];
|
|
jointWeightsBuffer = reinterpret_cast<const float*> (&(input.buffers[view.buffer].data[accessor.byteOffset + view.byteOffset]));
|
|
|
|
}
|
|
hasSkin = (jointIndicesBuffer && jointWeightsBuffer);
|
|
|
|
for (size_t v = 0; v < vertexCount; v++)
|
|
{
|
|
Vertex vert{};
|
|
vert.pos = glm::vec4(glm::make_vec3(&positionBuffer[v * 3]), 1.0f);
|
|
vert.uv = texcoordsBuffer ? glm::make_vec2(&texcoordsBuffer[v*2]) : glm::vec3(0.0f);
|
|
vert.normal = glm::normalize(glm::vec3(normalsBuffer ? glm::make_vec3(&normalsBuffer[v * 3]) : glm::vec3(0.0f)));
|
|
vert.color = glm::vec3(1.0f,1.0f,nodeIndex);
|
|
vert.jointIndices = hasSkin ? glm::vec4(glm::make_vec4(&jointIndicesBuffer[v * 4])) : glm::vec4(0.0f);
|
|
vert.jointWeights = hasSkin ? glm::make_vec4(&jointWeightsBuffer[v * 4]) : glm::vec4(0.0f);
|
|
vertexBuffer.push_back(vert);
|
|
}
|
|
}
|
|
{
|
|
const tinygltf::Accessor& accessor = input.accessors[glTFPrimmitive.indices];
|
|
const tinygltf::BufferView& bufferview = input.bufferViews[accessor.bufferView];
|
|
const tinygltf::Buffer& buffer = input.buffers[bufferview.buffer];
|
|
|
|
indexCount += static_cast<uint32_t>(accessor.count);
|
|
|
|
switch (accessor.componentType)
|
|
{
|
|
case TINYGLTF_PARAMETER_TYPE_UNSIGNED_INT: {
|
|
const uint32_t* buf = reinterpret_cast<const uint32_t*>(&buffer.data[accessor.byteOffset + bufferview.byteOffset]);
|
|
for (size_t index = 0; index < accessor.count; index++)
|
|
{
|
|
indexBuffer.push_back(buf[index] + vertexStart);
|
|
}
|
|
break;
|
|
|
|
}
|
|
case TINYGLTF_PARAMETER_TYPE_UNSIGNED_SHORT:{
|
|
const uint16_t* buf = reinterpret_cast<const uint16_t*>(&buffer.data[accessor.byteOffset + bufferview.byteOffset]);
|
|
for (size_t index = 0; index < accessor.count; index++)
|
|
{
|
|
indexBuffer.push_back(buf[index] + vertexStart);
|
|
}
|
|
break;
|
|
}
|
|
case TINYGLTF_PARAMETER_TYPE_UNSIGNED_BYTE: {
|
|
const uint8_t* buf = reinterpret_cast<const uint8_t*>(&buffer.data[accessor.byteOffset + bufferview.byteOffset]);
|
|
for (size_t index = 0; index < accessor.count; index++)
|
|
{
|
|
indexBuffer.push_back(buf[index] + vertexStart);
|
|
}
|
|
break;
|
|
}
|
|
default:
|
|
std::cerr << "index component type" << accessor.componentType << "not supported" << std::endl;
|
|
|
|
return;
|
|
}
|
|
}
|
|
Primitive primitive{};
|
|
primitive.firstIndex = firstIndex;
|
|
primitive.indexCount = indexCount;
|
|
primitive.materialIndex = glTFPrimmitive.material;
|
|
node->mesh.primitives.push_back(primitive);
|
|
|
|
}
|
|
}
|
|
if (parent)
|
|
{
|
|
parent->children.push_back(node);
|
|
}
|
|
else
|
|
{
|
|
nodes.push_back(node);
|
|
}
|
|
}
|
|
|
|
|
|
/*
|
|
vertex skinning functions
|
|
*/
|
|
glm::mat4 VulkanglTFModel::getNodeMatrix(VulkanglTFModel::Node* node)
|
|
{
|
|
glm::mat4 nodeMatrix = node->getLocalMatrix();
|
|
VulkanglTFModel::Node* currentParent = node->parent;
|
|
while (currentParent)
|
|
{
|
|
nodeMatrix = currentParent->getLocalMatrix() * nodeMatrix;
|
|
currentParent = currentParent->parent;
|
|
}
|
|
return nodeMatrix;
|
|
}
|
|
|
|
void VulkanglTFModel::updateNodeMatrix(Node* node, std::vector<glm::mat4>& nodeMatrics)
|
|
{
|
|
if (node->skin <= -1)
|
|
{
|
|
nodeMatrics[node->index] = getNodeMatrix(node);
|
|
for (auto& child : node->children)
|
|
{
|
|
updateNodeMatrix(child, nodeMatrics);
|
|
}
|
|
}
|
|
|
|
}
|
|
|
|
void VulkanglTFModel::updateJoints(VulkanglTFModel::Node* node)
|
|
{
|
|
if (node->skin > -1)
|
|
{
|
|
glm::mat4 inversTransform = glm::inverse(getNodeMatrix(node));
|
|
Skin skin = skins[node->skin];
|
|
size_t numJoints = (uint32_t)skin.joints.size();
|
|
std::vector<glm::mat4> jointMatrices(numJoints);
|
|
for (size_t i = 0; i < numJoints; i++)
|
|
{
|
|
jointMatrices[i] = getNodeMatrix(skin.joints[i]) * skin.inverseBindMatrices[i];
|
|
jointMatrices[i] = inversTransform * jointMatrices[i];
|
|
}
|
|
skin.ssbo.copyTo(jointMatrices.data(), jointMatrices.size() * sizeof(glm::mat4));
|
|
}
|
|
for (auto& child : node->children)
|
|
{
|
|
updateJoints(child);
|
|
}
|
|
}
|
|
|
|
void VulkanglTFModel::updateAnimation(float deltaTime,vks::Buffer buffer)
|
|
{
|
|
if (activeAnimation > static_cast<uint32_t>(animations.size()) - 1)
|
|
{
|
|
std::cout << "No animation with index " << activeAnimation << std::endl;
|
|
return;
|
|
}
|
|
Animation& animation = animations[activeAnimation];
|
|
animation.currentTime += deltaTime;
|
|
if (animation.currentTime > animation.end)
|
|
{
|
|
animation.currentTime -= animation.end;
|
|
}
|
|
|
|
for (auto& channel : animation.channels)
|
|
{
|
|
AnimationSampler& sampler = animation.samplers[channel.samplerIndex];
|
|
for (size_t i = 0; i < sampler.inputs.size() - 1; ++i)
|
|
{
|
|
if (sampler.interpolation != "LINEAR")
|
|
{
|
|
std::cout << "This sample only supports linear interpolations\n";
|
|
continue;
|
|
}
|
|
|
|
// Get the input keyframe values for the current time stamp
|
|
if ((animation.currentTime >= sampler.inputs[i]) && (animation.currentTime <= sampler.inputs[i + 1]))
|
|
{
|
|
float ratio = (animation.currentTime - sampler.inputs[i]) / (sampler.inputs[i + 1] - sampler.inputs[i]);
|
|
if (channel.path == "translation")
|
|
{
|
|
channel.node->translation = glm::mix(sampler.outputsVec4[i], sampler.outputsVec4[i + 1], ratio);
|
|
}
|
|
if (channel.path == "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, ratio));
|
|
channel.node->bAnimateNode = true;
|
|
}
|
|
if (channel.path == "scale")
|
|
{
|
|
channel.node->scale = glm::mix(sampler.outputsVec4[i], sampler.outputsVec4[i + 1], ratio);
|
|
channel.node->bAnimateNode = true;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
//if no skin in model , update node matrix to update animation stage
|
|
std::vector<glm::mat4> nodeMatrics(nodeCount);
|
|
for (auto& node : nodes)
|
|
{
|
|
updateJoints(node);
|
|
updateNodeMatrix(node, nodeMatrics);
|
|
}
|
|
buffer.copyTo(nodeMatrics.data(), nodeCount * sizeof(glm::mat4));
|
|
|
|
}
|
|
/*
|
|
glTF rendering functions
|
|
*/
|
|
|
|
// Draw a single node including child nodes (if present)
|
|
void VulkanglTFModel::drawNode(VkCommandBuffer commandBuffer, VkPipelineLayout pipelineLayout, VulkanglTFModel::Node node)
|
|
{
|
|
if (node.mesh.primitives.size() > 0) {
|
|
// Pass the node's matrix via push constants
|
|
// Traverse the node hierarchy to the top-most parent to get the final matrix of the current node
|
|
glm::mat4 nodeMatrix = node.matrix;
|
|
VulkanglTFModel::Node* currentParent = node.parent;
|
|
while (currentParent) {
|
|
nodeMatrix = currentParent->matrix * nodeMatrix;
|
|
currentParent = currentParent->parent;
|
|
}
|
|
// Pass the final matrix to the vertex shader using push constants
|
|
vkCmdPushConstants(commandBuffer, pipelineLayout, VK_SHADER_STAGE_VERTEX_BIT, 0, sizeof(glm::mat4), &nodeMatrix);
|
|
if (skins.size() != 0)
|
|
{
|
|
vkCmdBindDescriptorSets(commandBuffer, VK_PIPELINE_BIND_POINT_GRAPHICS, pipelineLayout, 1, 1, &skins[node.skin].descriptorSet, 0, nullptr);
|
|
}
|
|
|
|
|
|
|
|
for (VulkanglTFModel::Primitive& primitive : node.mesh.primitives) {
|
|
if (primitive.indexCount > 0)
|
|
{
|
|
// Get the texture index for this primitive
|
|
VulkanglTFModel::Texture texture = textures[materials[primitive.materialIndex].baseColorTextureIndex];
|
|
// Bind the descriptor for the current primitive's texture
|
|
vkCmdBindDescriptorSets(commandBuffer, VK_PIPELINE_BIND_POINT_GRAPHICS, pipelineLayout, 2, 1, &images[texture.imageIndex].descriptorSet, 0, nullptr);
|
|
vkCmdDrawIndexed(commandBuffer, primitive.indexCount, 1, primitive.firstIndex, 0, 0);
|
|
}
|
|
}
|
|
}
|
|
for (auto &child : node.children) {
|
|
drawNode(commandBuffer, pipelineLayout, *child);
|
|
}
|
|
}
|
|
|
|
// Draw the glTF scene starting at the top-level-nodes
|
|
void VulkanglTFModel::draw(VkCommandBuffer commandBuffer, VkPipelineLayout pipelineLayout)
|
|
{
|
|
// All vertices and indices are stored in single buffers, so we only need to bind once
|
|
VkDeviceSize offsets[1] = { 0 };
|
|
vkCmdBindVertexBuffers(commandBuffer, 0, 1, &vertices.buffer, offsets);
|
|
vkCmdBindIndexBuffer(commandBuffer, indices.buffer, 0, VK_INDEX_TYPE_UINT32);
|
|
// Render all nodes at top-level
|
|
for (auto& node : nodes) {
|
|
drawNode(commandBuffer, pipelineLayout, *node);
|
|
}
|
|
}
|
|
|
|
|
|
|
|
|
|
VulkanExample::VulkanExample():
|
|
VulkanExampleBase(ENABLE_VALIDATION)
|
|
{
|
|
title = "homework1";
|
|
camera.type = Camera::CameraType::lookat;
|
|
camera.flipY = true;
|
|
camera.setPosition(glm::vec3(0.0f, -0.1f, -1.0f));
|
|
camera.setRotation(glm::vec3(0.0f, 45.0f, 0.0f));
|
|
camera.setPerspective(60.0f, (float)width / (float)height, 0.1f, 256.0f);
|
|
}
|
|
|
|
VulkanExample::~VulkanExample()
|
|
{
|
|
// Clean up used Vulkan resources
|
|
// Note : Inherited destructor cleans up resources stored in base class
|
|
vkDestroyPipeline(device, pipelines.solid, nullptr);
|
|
if (pipelines.wireframe != VK_NULL_HANDLE) {
|
|
vkDestroyPipeline(device, pipelines.wireframe, nullptr);
|
|
}
|
|
|
|
vkDestroyPipelineLayout(device, pipelineLayout, nullptr);
|
|
vkDestroyDescriptorSetLayout(device, descriptorSetLayouts.matrices, nullptr);
|
|
vkDestroyDescriptorSetLayout(device, descriptorSetLayouts.textures, nullptr);
|
|
vkDestroyDescriptorSetLayout(device, descriptorSetLayouts.jointMatrices, nullptr);
|
|
|
|
|
|
shaderData.buffer.destroy();
|
|
|
|
}
|
|
|
|
void VulkanExample::getEnabledFeatures()
|
|
{
|
|
// Fill mode non solid is required for wireframe display
|
|
if (deviceFeatures.fillModeNonSolid) {
|
|
enabledFeatures.fillModeNonSolid = VK_TRUE;
|
|
};
|
|
}
|
|
|
|
void VulkanExample::buildCommandBuffers()
|
|
{
|
|
VkCommandBufferBeginInfo cmdBufInfo = vks::initializers::commandBufferBeginInfo();
|
|
|
|
VkClearValue clearValues[2];
|
|
clearValues[0].color = defaultClearColor;
|
|
clearValues[0].color = { { 0.25f, 0.25f, 0.25f, 1.0f } };;
|
|
clearValues[1].depthStencil = { 1.0f, 0 };
|
|
|
|
VkRenderPassBeginInfo renderPassBeginInfo = vks::initializers::renderPassBeginInfo();
|
|
renderPassBeginInfo.renderPass = renderPass;
|
|
renderPassBeginInfo.renderArea.offset.x = 0;
|
|
renderPassBeginInfo.renderArea.offset.y = 0;
|
|
renderPassBeginInfo.renderArea.extent.width = width;
|
|
renderPassBeginInfo.renderArea.extent.height = height;
|
|
renderPassBeginInfo.clearValueCount = 2;
|
|
renderPassBeginInfo.pClearValues = clearValues;
|
|
|
|
const VkViewport viewport = vks::initializers::viewport((float)width, (float)height, 0.0f, 1.0f);
|
|
const VkRect2D scissor = vks::initializers::rect2D(width, height, 0, 0);
|
|
|
|
for (int32_t i = 0; i < drawCmdBuffers.size(); ++i)
|
|
{
|
|
renderPassBeginInfo.framebuffer = frameBuffers[i];
|
|
VK_CHECK_RESULT(vkBeginCommandBuffer(drawCmdBuffers[i], &cmdBufInfo));
|
|
vkCmdBeginRenderPass(drawCmdBuffers[i], &renderPassBeginInfo, VK_SUBPASS_CONTENTS_INLINE);
|
|
vkCmdSetViewport(drawCmdBuffers[i], 0, 1, &viewport);
|
|
vkCmdSetScissor(drawCmdBuffers[i], 0, 1, &scissor);
|
|
// Bind scene matrices descriptor to set 0
|
|
vkCmdBindDescriptorSets(drawCmdBuffers[i], VK_PIPELINE_BIND_POINT_GRAPHICS, pipelineLayout, 0, 1, &descriptorSet, 0, nullptr);
|
|
vkCmdBindPipeline(drawCmdBuffers[i], VK_PIPELINE_BIND_POINT_GRAPHICS, wireframe ? pipelines.wireframe : pipelines.solid);
|
|
glTFModel.draw(drawCmdBuffers[i], pipelineLayout);
|
|
drawUI(drawCmdBuffers[i]);
|
|
vkCmdEndRenderPass(drawCmdBuffers[i]);
|
|
VK_CHECK_RESULT(vkEndCommandBuffer(drawCmdBuffers[i]));
|
|
}
|
|
}
|
|
|
|
void VulkanExample::loadglTFFile(std::string filename)
|
|
{
|
|
tinygltf::Model glTFInput;
|
|
tinygltf::TinyGLTF gltfContext;
|
|
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(&glTFInput, &error, &warning, filename);
|
|
|
|
// Pass some Vulkan resources required for setup and rendering to the glTF model loading class
|
|
glTFModel.vulkanDevice = vulkanDevice;
|
|
glTFModel.copyQueue = queue;
|
|
|
|
std::vector<uint32_t> indexBuffer;
|
|
std::vector<VulkanglTFModel::Vertex> vertexBuffer;
|
|
|
|
if (fileLoaded)
|
|
{
|
|
glTFModel.nodeCount = static_cast<uint32_t>(glTFInput.nodes.size());
|
|
glTFModel.loadImages(glTFInput);
|
|
glTFModel.loadMaterials(glTFInput);
|
|
glTFModel.loadTextures(glTFInput);
|
|
glTFModel.loadSkins(glTFInput);
|
|
const tinygltf::Scene& scene = glTFInput.scenes[0];
|
|
for (size_t i = 0; i < scene.nodes.size(); i++) {
|
|
const tinygltf::Node node = glTFInput.nodes[scene.nodes[i]];
|
|
glTFModel.loadNode(node, glTFInput, nullptr,scene.nodes[i], indexBuffer, vertexBuffer);
|
|
}
|
|
|
|
glTFModel.loadAnimations(glTFInput);
|
|
// update joint in nodes
|
|
for (auto node : glTFModel.nodes)
|
|
{
|
|
glTFModel.updateJoints(node);
|
|
}
|
|
}
|
|
else {
|
|
vks::tools::exitFatal("Could not open the glTF file.\n\nThe file is part of the additional asset pack.\n\nRun \"download_assets.py\" in the repository root to download the latest version.", -1);
|
|
return;
|
|
}
|
|
|
|
// Create and upload vertex and index buffer
|
|
// We will be using one single vertex buffer and one single index buffer for the whole glTF scene
|
|
// Primitives (of the glTF model) will then index into these using index offsets
|
|
|
|
size_t vertexBufferSize = vertexBuffer.size() * sizeof(VulkanglTFModel::Vertex);
|
|
size_t indexBufferSize = indexBuffer.size() * sizeof(uint32_t);
|
|
glTFModel.indices.count = static_cast<uint32_t>(indexBuffer.size());
|
|
|
|
struct StagingBuffer {
|
|
VkBuffer buffer;
|
|
VkDeviceMemory memory;
|
|
} vertexStaging, indexStaging;
|
|
|
|
// Create host visible staging buffers (source)
|
|
VK_CHECK_RESULT(vulkanDevice->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(vulkanDevice->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 (target)
|
|
VK_CHECK_RESULT(vulkanDevice->createBuffer(
|
|
VK_BUFFER_USAGE_VERTEX_BUFFER_BIT | VK_BUFFER_USAGE_TRANSFER_DST_BIT,
|
|
VK_MEMORY_PROPERTY_DEVICE_LOCAL_BIT,
|
|
vertexBufferSize,
|
|
&glTFModel.vertices.buffer,
|
|
&glTFModel.vertices.memory));
|
|
VK_CHECK_RESULT(vulkanDevice->createBuffer(
|
|
VK_BUFFER_USAGE_INDEX_BUFFER_BIT | VK_BUFFER_USAGE_TRANSFER_DST_BIT,
|
|
VK_MEMORY_PROPERTY_DEVICE_LOCAL_BIT,
|
|
indexBufferSize,
|
|
&glTFModel.indices.buffer,
|
|
&glTFModel.indices.memory));
|
|
|
|
// Copy data from staging buffers (host) do device local buffer (gpu)
|
|
VkCommandBuffer copyCmd = vulkanDevice->createCommandBuffer(VK_COMMAND_BUFFER_LEVEL_PRIMARY, true);
|
|
VkBufferCopy copyRegion = {};
|
|
|
|
copyRegion.size = vertexBufferSize;
|
|
vkCmdCopyBuffer(
|
|
copyCmd,
|
|
vertexStaging.buffer,
|
|
glTFModel.vertices.buffer,
|
|
1,
|
|
©Region);
|
|
|
|
copyRegion.size = indexBufferSize;
|
|
|
|
vkCmdCopyBuffer(
|
|
copyCmd,
|
|
indexStaging.buffer,
|
|
glTFModel.indices.buffer,
|
|
1,
|
|
©Region);
|
|
|
|
vulkanDevice->flushCommandBuffer(copyCmd, queue, true);
|
|
|
|
// Free staging resources
|
|
vkDestroyBuffer(device, vertexStaging.buffer, nullptr);
|
|
vkFreeMemory(device, vertexStaging.memory, nullptr);
|
|
vkDestroyBuffer(device, indexStaging.buffer, nullptr);
|
|
vkFreeMemory(device, indexStaging.memory, nullptr);
|
|
}
|
|
|
|
void VulkanExample::loadAssets()
|
|
{
|
|
loadglTFFile(getAssetPath() + "buster_drone/busterDrone.gltf");
|
|
}
|
|
|
|
void VulkanExample::setupDescriptors()
|
|
{
|
|
/*
|
|
This sample uses separate descriptor sets (and layouts) for the matrices and materials (textures)
|
|
*/
|
|
|
|
std::vector<VkDescriptorPoolSize> poolSizes = {
|
|
vks::initializers::descriptorPoolSize(VK_DESCRIPTOR_TYPE_UNIFORM_BUFFER, 1),
|
|
// One combined image sampler per material image/texture
|
|
vks::initializers::descriptorPoolSize(VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER, static_cast<uint32_t>(glTFModel.images.size())),
|
|
// One ssbo per skin
|
|
vks::initializers::descriptorPoolSize(VK_DESCRIPTOR_TYPE_STORAGE_BUFFER, static_cast<uint32_t>(glTFModel.skins.size())),
|
|
};
|
|
// Number of descriptor sets = One for the scene ubo + one per image + one per skin
|
|
const uint32_t maxSetCount = static_cast<uint32_t>(glTFModel.images.size()) + static_cast<uint32_t>(glTFModel.skins.size()) + 1;
|
|
VkDescriptorPoolCreateInfo descriptorPoolInfo = vks::initializers::descriptorPoolCreateInfo(poolSizes, maxSetCount);
|
|
VK_CHECK_RESULT(vkCreateDescriptorPool(device, &descriptorPoolInfo, nullptr, &descriptorPool));
|
|
|
|
// Descriptor set layouts
|
|
VkDescriptorSetLayoutBinding setLayoutBinding{};
|
|
VkDescriptorSetLayoutCreateInfo descriptorSetLayoutCI = vks::initializers::descriptorSetLayoutCreateInfo(&setLayoutBinding, 1);
|
|
|
|
// Descriptor set layout for passing matrices
|
|
setLayoutBinding = vks::initializers::descriptorSetLayoutBinding(VK_DESCRIPTOR_TYPE_UNIFORM_BUFFER, VK_SHADER_STAGE_VERTEX_BIT, 0);
|
|
VK_CHECK_RESULT(vkCreateDescriptorSetLayout(device, &descriptorSetLayoutCI, nullptr, &descriptorSetLayouts.matrices));
|
|
|
|
// Descriptor set layout for passing material textures
|
|
setLayoutBinding = vks::initializers::descriptorSetLayoutBinding(VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER, VK_SHADER_STAGE_FRAGMENT_BIT, 0);
|
|
VK_CHECK_RESULT(vkCreateDescriptorSetLayout(device, &descriptorSetLayoutCI, nullptr, &descriptorSetLayouts.textures));
|
|
|
|
// Descriptor set layout for passing skin joint matrices
|
|
setLayoutBinding = vks::initializers::descriptorSetLayoutBinding(VK_DESCRIPTOR_TYPE_STORAGE_BUFFER, VK_SHADER_STAGE_VERTEX_BIT, 0);
|
|
VK_CHECK_RESULT(vkCreateDescriptorSetLayout(device, &descriptorSetLayoutCI, nullptr, &descriptorSetLayouts.jointMatrices));
|
|
|
|
// The pipeline layout uses three sets:
|
|
// Set 0 = Scene matrices (VS)
|
|
// Set 1 = Joint matrices (VS)
|
|
// Set 2 = Material texture (FS)
|
|
std::array<VkDescriptorSetLayout, 3> setLayouts = {
|
|
descriptorSetLayouts.matrices,
|
|
descriptorSetLayouts.jointMatrices,
|
|
descriptorSetLayouts.textures };
|
|
VkPipelineLayoutCreateInfo pipelineLayoutCI = vks::initializers::pipelineLayoutCreateInfo(setLayouts.data(), static_cast<uint32_t>(setLayouts.size()));
|
|
|
|
// We will use push constants to push the local matrices of a primitive to the vertex shader
|
|
VkPushConstantRange pushConstantRange = vks::initializers::pushConstantRange(VK_SHADER_STAGE_VERTEX_BIT, sizeof(glm::mat4), 0);
|
|
// Push constant ranges are part of the pipeline layout
|
|
pipelineLayoutCI.pushConstantRangeCount = 1;
|
|
pipelineLayoutCI.pPushConstantRanges = &pushConstantRange;
|
|
VK_CHECK_RESULT(vkCreatePipelineLayout(device, &pipelineLayoutCI, nullptr, &pipelineLayout));
|
|
|
|
// Descriptor set for scene matrices
|
|
VkDescriptorSetAllocateInfo allocInfo = vks::initializers::descriptorSetAllocateInfo(descriptorPool, &descriptorSetLayouts.matrices, 1);
|
|
VK_CHECK_RESULT(vkAllocateDescriptorSets(device, &allocInfo, &descriptorSet));
|
|
VkWriteDescriptorSet writeDescriptorSet = vks::initializers::writeDescriptorSet(descriptorSet, VK_DESCRIPTOR_TYPE_UNIFORM_BUFFER, 0, &shaderData.buffer.descriptor);
|
|
vkUpdateDescriptorSets(device, 1, &writeDescriptorSet, 0, nullptr);
|
|
|
|
// Descriptor set for glTF model skin joint matrices
|
|
for (auto& skin : glTFModel.skins)
|
|
{
|
|
const VkDescriptorSetAllocateInfo allocInfo = vks::initializers::descriptorSetAllocateInfo(descriptorPool, &descriptorSetLayouts.jointMatrices, 1);
|
|
VK_CHECK_RESULT(vkAllocateDescriptorSets(device, &allocInfo, &skin.descriptorSet));
|
|
VkWriteDescriptorSet writeDescriptorSet = vks::initializers::writeDescriptorSet(skin.descriptorSet, VK_DESCRIPTOR_TYPE_STORAGE_BUFFER, 0, &skin.ssbo.descriptor);
|
|
vkUpdateDescriptorSets(device, 1, &writeDescriptorSet, 0, nullptr);
|
|
}
|
|
|
|
// Descriptor sets for glTF model materials
|
|
for (auto& image : glTFModel.images)
|
|
{
|
|
const VkDescriptorSetAllocateInfo allocInfo = vks::initializers::descriptorSetAllocateInfo(descriptorPool, &descriptorSetLayouts.textures, 1);
|
|
VK_CHECK_RESULT(vkAllocateDescriptorSets(device, &allocInfo, &image.descriptorSet));
|
|
VkWriteDescriptorSet writeDescriptorSet = vks::initializers::writeDescriptorSet(image.descriptorSet, VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER, 0, &image.texture.descriptor);
|
|
vkUpdateDescriptorSets(device, 1, &writeDescriptorSet, 0, nullptr);
|
|
}
|
|
|
|
}
|
|
|
|
void VulkanExample::preparePipelines()
|
|
{
|
|
VkPipelineInputAssemblyStateCreateInfo inputAssemblyStateCI = vks::initializers::pipelineInputAssemblyStateCreateInfo(VK_PRIMITIVE_TOPOLOGY_TRIANGLE_LIST, 0, VK_FALSE);
|
|
VkPipelineRasterizationStateCreateInfo rasterizationStateCI = vks::initializers::pipelineRasterizationStateCreateInfo(VK_POLYGON_MODE_FILL, VK_CULL_MODE_BACK_BIT, VK_FRONT_FACE_COUNTER_CLOCKWISE, 0);
|
|
VkPipelineColorBlendAttachmentState blendAttachmentStateCI = vks::initializers::pipelineColorBlendAttachmentState(0xf, VK_FALSE);
|
|
VkPipelineColorBlendStateCreateInfo colorBlendStateCI = vks::initializers::pipelineColorBlendStateCreateInfo(1, &blendAttachmentStateCI);
|
|
VkPipelineDepthStencilStateCreateInfo depthStencilStateCI = vks::initializers::pipelineDepthStencilStateCreateInfo(VK_TRUE, VK_TRUE, VK_COMPARE_OP_LESS_OR_EQUAL);
|
|
VkPipelineViewportStateCreateInfo viewportStateCI = vks::initializers::pipelineViewportStateCreateInfo(1, 1, 0);
|
|
VkPipelineMultisampleStateCreateInfo multisampleStateCI = vks::initializers::pipelineMultisampleStateCreateInfo(VK_SAMPLE_COUNT_1_BIT, 0);
|
|
const std::vector<VkDynamicState> dynamicStateEnables = { VK_DYNAMIC_STATE_VIEWPORT, VK_DYNAMIC_STATE_SCISSOR };
|
|
VkPipelineDynamicStateCreateInfo dynamicStateCI = vks::initializers::pipelineDynamicStateCreateInfo(dynamicStateEnables.data(), static_cast<uint32_t>(dynamicStateEnables.size()), 0);
|
|
// Vertex input bindings and attributes
|
|
const std::vector<VkVertexInputBindingDescription> vertexInputBindings = {
|
|
vks::initializers::vertexInputBindingDescription(0, sizeof(VulkanglTFModel::Vertex), VK_VERTEX_INPUT_RATE_VERTEX),
|
|
};
|
|
const std::vector<VkVertexInputAttributeDescription> vertexInputAttributes = {
|
|
{0, 0, VK_FORMAT_R32G32B32_SFLOAT, offsetof(VulkanglTFModel::Vertex, pos)},
|
|
{1, 0, VK_FORMAT_R32G32B32_SFLOAT, offsetof(VulkanglTFModel::Vertex, normal)},
|
|
{2, 0, VK_FORMAT_R32G32B32_SFLOAT, offsetof(VulkanglTFModel::Vertex, uv)},
|
|
{3, 0, VK_FORMAT_R32G32B32_SFLOAT, offsetof(VulkanglTFModel::Vertex, color)},
|
|
// POI: Per-Vertex Joint indices and weights are passed to the vertex shader
|
|
{4, 0, VK_FORMAT_R32G32B32A32_SFLOAT, offsetof(VulkanglTFModel::Vertex, jointIndices)},
|
|
{5, 0, VK_FORMAT_R32G32B32A32_SFLOAT, offsetof(VulkanglTFModel::Vertex, jointWeights)},
|
|
};
|
|
VkPipelineVertexInputStateCreateInfo vertexInputStateCI = vks::initializers::pipelineVertexInputStateCreateInfo();
|
|
vertexInputStateCI.vertexBindingDescriptionCount = static_cast<uint32_t>(vertexInputBindings.size());
|
|
vertexInputStateCI.pVertexBindingDescriptions = vertexInputBindings.data();
|
|
vertexInputStateCI.vertexAttributeDescriptionCount = static_cast<uint32_t>(vertexInputAttributes.size());
|
|
vertexInputStateCI.pVertexAttributeDescriptions = vertexInputAttributes.data();
|
|
|
|
const std::array<VkPipelineShaderStageCreateInfo, 2> shaderStages = {
|
|
loadShader(getHomeworkShadersPath() + "homework1/mesh.vert.spv", VK_SHADER_STAGE_VERTEX_BIT),
|
|
loadShader(getHomeworkShadersPath() + "homework1/mesh.frag.spv", VK_SHADER_STAGE_FRAGMENT_BIT)
|
|
};
|
|
|
|
VkGraphicsPipelineCreateInfo pipelineCI = vks::initializers::pipelineCreateInfo(pipelineLayout, renderPass, 0);
|
|
pipelineCI.pVertexInputState = &vertexInputStateCI;
|
|
pipelineCI.pInputAssemblyState = &inputAssemblyStateCI;
|
|
pipelineCI.pRasterizationState = &rasterizationStateCI;
|
|
pipelineCI.pColorBlendState = &colorBlendStateCI;
|
|
pipelineCI.pMultisampleState = &multisampleStateCI;
|
|
pipelineCI.pViewportState = &viewportStateCI;
|
|
pipelineCI.pDepthStencilState = &depthStencilStateCI;
|
|
pipelineCI.pDynamicState = &dynamicStateCI;
|
|
pipelineCI.stageCount = static_cast<uint32_t>(shaderStages.size());
|
|
pipelineCI.pStages = shaderStages.data();
|
|
|
|
// Solid rendering pipeline
|
|
VK_CHECK_RESULT(vkCreateGraphicsPipelines(device, pipelineCache, 1, &pipelineCI, nullptr, &pipelines.solid));
|
|
|
|
// Wire frame rendering pipeline
|
|
if (deviceFeatures.fillModeNonSolid) {
|
|
rasterizationStateCI.polygonMode = VK_POLYGON_MODE_LINE;
|
|
rasterizationStateCI.lineWidth = 1.0f;
|
|
VK_CHECK_RESULT(vkCreateGraphicsPipelines(device, pipelineCache, 1, &pipelineCI, nullptr, &pipelines.wireframe));
|
|
}
|
|
}
|
|
|
|
// Prepare and initialize uniform buffer containing shader uniforms
|
|
void VulkanExample::prepareUniformBuffers()
|
|
{
|
|
// Vertex shader uniform buffer block
|
|
VK_CHECK_RESULT(vulkanDevice->createBuffer(
|
|
VK_BUFFER_USAGE_UNIFORM_BUFFER_BIT,
|
|
VK_MEMORY_PROPERTY_HOST_VISIBLE_BIT | VK_MEMORY_PROPERTY_HOST_COHERENT_BIT,
|
|
&shaderData.buffer,
|
|
sizeof(shaderData.values)));
|
|
|
|
// Map persistent
|
|
VK_CHECK_RESULT(shaderData.buffer.map());
|
|
|
|
updateUniformBuffers();
|
|
}
|
|
|
|
void VulkanExample::updateUniformBuffers()
|
|
{
|
|
shaderData.values.projection = camera.matrices.perspective;
|
|
shaderData.values.model = camera.matrices.view;
|
|
|
|
memcpy(shaderData.buffer.mapped, &shaderData.values, sizeof(shaderData.values));
|
|
}
|
|
|
|
void VulkanExample::prepare()
|
|
{
|
|
VulkanExampleBase::prepare();
|
|
loadAssets();
|
|
prepareUniformBuffers();
|
|
setupDescriptors();
|
|
preparePipelines();
|
|
buildCommandBuffers();
|
|
prepared = true;
|
|
}
|
|
|
|
void VulkanExample::render()
|
|
{
|
|
renderFrame();
|
|
if (camera.updated) {
|
|
updateUniformBuffers();
|
|
}
|
|
if (!paused)
|
|
{
|
|
glTFModel.updateAnimation(frameTimer,shaderData.buffer);
|
|
}
|
|
}
|
|
|
|
void VulkanExample::viewChanged()
|
|
{
|
|
updateUniformBuffers();
|
|
}
|
|
|
|
void VulkanExample::OnUpdateUIOverlay(vks::UIOverlay *overlay)
|
|
{
|
|
if (overlay->header("Settings")) {
|
|
if (overlay->checkBox("Wireframe", &wireframe)) {
|
|
buildCommandBuffers();
|
|
}
|
|
}
|
|
if (overlay->header("Animation"))
|
|
{
|
|
overlay->checkBox("pause", &paused);
|
|
}
|
|
}
|
|
|
|
|
|
VULKAN_EXAMPLE_MAIN()
|