diff --git a/src/render/glTFModel.h b/src/render/glTFModel.h
index 098a63c..62cf121 100644
--- a/src/render/glTFModel.h
+++ b/src/render/glTFModel.h
@@ -15,7 +15,7 @@
 #include <glm/gtc/matrix_transform.hpp>
 #include <glm/gtc/type_ptr.hpp>
 
-
+#define TINYGLTF_NO_STB_IMAGE_WRITE
 
 #ifdef VK_USE_PLATFORM_ANDROID_KHR
 #define TINYGLTF_ANDROID_LOAD_FROM_ASSETS
@@ -31,14 +31,24 @@
 
 // Contains everything required to render a glTF model in Vulkan
 // This class is heavily simplified (compared to glTF's feature set) but retains the basic glTF structure
-class VulkanglTFModel
+namespace VulkanglTFModel
 {
-public:
+
 	// The class requires some Vulkan objects so it can create it's own resources
 	vks::VulkanDevice* vulkanDevice;
 	VkQueue copyQueue;
 	uint32_t nodeCount;
 
+	enum DescriptorBindingFlags {
+		ImageBaseColor = 0x00000001,
+		ImageNormalMap = 0x00000002
+	};
+
+	extern VkDescriptorSetLayout descriptorSetLayoutImage;
+	extern VkDescriptorSetLayout descriptorSetLayoutUbo;
+	extern VkMemoryPropertyFlags memoryPropertyFlags;
+	extern uint32_t descriptorBindingFlags;
+
 	// The vertex layout for the samples' model
 	struct Vertex {
 		glm::vec3 pos;