//in the main vulkan thread
void updateTextureSet()
{
nextTexture.CreateView();
nextTexture.CreateSampler();
nextTexture.Descriptor.imageLayout = VkImageLayout.ShaderReadOnlyOptimal;
using (DescriptorSetWrites2 uboUpdate = new DescriptorSetWrites2(dev)) {
uboUpdate.AddWriteInfo(descriptorSet, dsLayout.Bindings[1], nextTexture.Descriptor);
uboUpdate.Update();
}
texture?.Dispose();
texture = nextTexture;
nextTexture = null;
}
Program() : base()
{
vbo = new GPUBuffer <float> (presentQueue, cmdPool, VkBufferUsageFlags.VertexBuffer, vertices);
ibo = new GPUBuffer <ushort> (presentQueue, cmdPool, VkBufferUsageFlags.IndexBuffer, indices);
descriptorPool = new DescriptorPool(dev, 1,
new VkDescriptorPoolSize(VkDescriptorType.UniformBuffer),
new VkDescriptorPoolSize(VkDescriptorType.CombinedImageSampler)
);
dsLayout = new DescriptorSetLayout(dev, 0,
new VkDescriptorSetLayoutBinding(0, VkShaderStageFlags.Vertex, VkDescriptorType.UniformBuffer),
new VkDescriptorSetLayoutBinding(1, VkShaderStageFlags.Fragment, VkDescriptorType.CombinedImageSampler));
GraphicPipelineConfig cfg = GraphicPipelineConfig.CreateDefault(VkPrimitiveTopology.TriangleList, VkSampleCountFlags.SampleCount1);
cfg.Layout = new PipelineLayout(dev, dsLayout);
cfg.RenderPass = new RenderPass(dev, swapChain.ColorFormat, dev.GetSuitableDepthFormat(), cfg.Samples);
cfg.AddVertexBinding(0, 5 * sizeof(float));
cfg.AddVertexAttributes(0, VkFormat.R32g32b32Sfloat, VkFormat.R32g32Sfloat);
cfg.AddShader(VkShaderStageFlags.Vertex, "shaders/main.vert.spv");
cfg.AddShader(VkShaderStageFlags.Fragment, "shaders/main.frag.spv");
pipeline = new GraphicPipeline(cfg);
uboMats = new HostBuffer(dev, VkBufferUsageFlags.UniformBuffer, matrices);
uboMats.Map(); //permanent map
descriptorSet = descriptorPool.Allocate(dsLayout);
using (DescriptorSetWrites2 uboUpdate = new DescriptorSetWrites2(dev)) {
uboUpdate.AddWriteInfo(descriptorSet, dsLayout.Bindings[0], uboMats.Descriptor);
uboUpdate.Update();
}
loadTexture(imgPathes[currentImgIndex]);
updateTextureSet();
}
void loadMaterials(glTFLoader ctx, DescriptorSetLayout layout, params AttachmentType[] attachments)
{
glTFLoader.Material[] mats = ctx.LoadMaterial();
materials = new Material[mats.Length];
descriptorSets = new DescriptorSet[mats.Length];
if (attachments.Length == 0)
{
throw new InvalidOperationException("At least one attachment is required for Model.WriteMaterialDescriptor");
}
descriptorPool = new DescriptorPool(dev, (uint)materials.Length,
new VkDescriptorPoolSize(VkDescriptorType.CombinedImageSampler, (uint)(attachments.Length * materials.Length))
);
descriptorPool.SetName("descPool gltfTextures");
for (int i = 0; i < mats.Length; i++)
{
materials[i] = new Material {
workflow = (float)mats[i].workflow,
baseColorFactor = mats[i].baseColorFactor,
emissiveFactor = mats[i].emissiveFactor,
metallicFactor = mats[i].metallicFactor,
roughnessFactor = mats[i].roughnessFactor,
TexCoord0 = mats[i].availableAttachments,
TexCoord1 = mats[i].availableAttachments1,
alphaMask = 0f,
alphaMaskCutoff = 0.0f,
diffuseFactor = new Vector4(0),
specularFactor = new Vector4(0)
};
descriptorSets[i] = descriptorPool.Allocate(layout);
descriptorSets[i].Handle.SetDebugMarkerName(dev, "descSet " + mats[i].Name);
VkDescriptorSetLayoutBinding dslb =
new VkDescriptorSetLayoutBinding(0, VkShaderStageFlags.Fragment, VkDescriptorType.CombinedImageSampler);
using (DescriptorSetWrites2 uboUpdate = new DescriptorSetWrites2(dev)) {
for (uint a = 0; a < attachments.Length; a++)
{
dslb.binding = a;
switch (attachments[a])
{
case AttachmentType.None:
break;
case AttachmentType.Color:
if (mats[i].availableAttachments.HasFlag(AttachmentType.Color))
{
uboUpdate.AddWriteInfo(descriptorSets[i], dslb, textures[(int)mats[i].baseColorTexture].Descriptor);
}
break;
case AttachmentType.Normal:
if (mats[i].availableAttachments.HasFlag(AttachmentType.Normal))
{
uboUpdate.AddWriteInfo(descriptorSets[i], dslb, textures[(int)mats[i].normalTexture].Descriptor);
}
break;
case AttachmentType.AmbientOcclusion:
if (mats[i].availableAttachments.HasFlag(AttachmentType.AmbientOcclusion))
{
uboUpdate.AddWriteInfo(descriptorSets[i], dslb, textures[(int)mats[i].occlusionTexture].Descriptor);
}
break;
case AttachmentType.PhysicalProps:
if (mats[i].availableAttachments.HasFlag(AttachmentType.PhysicalProps))
{
uboUpdate.AddWriteInfo(descriptorSets[i], dslb, textures[(int)mats[i].metallicRoughnessTexture].Descriptor);
}
break;
case AttachmentType.Metal:
break;
case AttachmentType.Roughness:
break;
case AttachmentType.Emissive:
if (mats[i].availableAttachments.HasFlag(AttachmentType.Emissive))
{
uboUpdate.AddWriteInfo(descriptorSets[i], dslb, textures[(int)mats[i].emissiveTexture].Descriptor);
}
break;
}
}
uboUpdate.Update();
}
}
}