439 lines
21 KiB
C++
439 lines
21 KiB
C++
/*
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* Vulkan Example - Variable rate shading
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*
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* Copyright (C) 2020-2022 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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#include "variablerateshading.h"
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VulkanExample::VulkanExample() : VulkanExampleBase(ENABLE_VALIDATION)
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{
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title = "Variable rate shading";
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apiVersion = VK_API_VERSION_1_1;
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camera.type = Camera::CameraType::firstperson;
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camera.flipY = true;
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camera.setPosition(glm::vec3(0.0f, 1.0f, 0.0f));
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camera.setRotation(glm::vec3(0.0f, -90.0f, 0.0f));
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camera.setPerspective(60.0f, (float)width / (float)height, 0.1f, 256.0f);
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camera.setRotationSpeed(0.25f);
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enabledInstanceExtensions.push_back(VK_KHR_GET_PHYSICAL_DEVICE_PROPERTIES_2_EXTENSION_NAME);
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enabledDeviceExtensions.push_back(VK_NV_SHADING_RATE_IMAGE_EXTENSION_NAME);
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}
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VulkanExample::~VulkanExample()
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{
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vkDestroyPipeline(device, basePipelines.masked, nullptr);
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vkDestroyPipeline(device, basePipelines.opaque, nullptr);
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vkDestroyPipeline(device, shadingRatePipelines.masked, nullptr);
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vkDestroyPipeline(device, shadingRatePipelines.opaque, nullptr);
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vkDestroyPipelineLayout(device, pipelineLayout, nullptr);
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vkDestroyDescriptorSetLayout(device, descriptorSetLayout, nullptr);
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vkDestroyImageView(device, shadingRateImage.view, nullptr);
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vkDestroyImage(device, shadingRateImage.image, nullptr);
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vkFreeMemory(device, shadingRateImage.memory, nullptr);
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shaderData.buffer.destroy();
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}
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void VulkanExample::getEnabledFeatures()
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{
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enabledFeatures.samplerAnisotropy = deviceFeatures.samplerAnisotropy;
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// POI
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enabledPhysicalDeviceShadingRateImageFeaturesNV = {};
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enabledPhysicalDeviceShadingRateImageFeaturesNV.sType = VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_SHADING_RATE_IMAGE_FEATURES_NV;
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enabledPhysicalDeviceShadingRateImageFeaturesNV.shadingRateImage = VK_TRUE;
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deviceCreatepNextChain = &enabledPhysicalDeviceShadingRateImageFeaturesNV;
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}
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/*
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If the window has been resized, we need to recreate the shading rate image
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*/
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void VulkanExample::handleResize()
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{
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// Delete allocated resources
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vkDestroyImageView(device, shadingRateImage.view, nullptr);
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vkDestroyImage(device, shadingRateImage.image, nullptr);
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vkFreeMemory(device, shadingRateImage.memory, nullptr);
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// Recreate image
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prepareShadingRateImage();
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resized = false;
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}
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void VulkanExample::buildCommandBuffers()
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{
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if (resized)
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{
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handleResize();
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}
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VkCommandBufferBeginInfo cmdBufInfo = vks::initializers::commandBufferBeginInfo();
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VkClearValue clearValues[2];
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clearValues[0].color = defaultClearColor;
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clearValues[0].color = { { 0.25f, 0.25f, 0.25f, 1.0f } };;
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clearValues[1].depthStencil = { 1.0f, 0 };
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VkRenderPassBeginInfo renderPassBeginInfo = vks::initializers::renderPassBeginInfo();
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renderPassBeginInfo.renderPass = renderPass;
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renderPassBeginInfo.renderArea.offset.x = 0;
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renderPassBeginInfo.renderArea.offset.y = 0;
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renderPassBeginInfo.renderArea.extent.width = width;
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renderPassBeginInfo.renderArea.extent.height = height;
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renderPassBeginInfo.clearValueCount = 2;
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renderPassBeginInfo.pClearValues = clearValues;
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const VkViewport viewport = vks::initializers::viewport((float)width, (float)height, 0.0f, 1.0f);
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const VkRect2D scissor = vks::initializers::rect2D(width, height, 0, 0);
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for (int32_t i = 0; i < drawCmdBuffers.size(); ++i)
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{
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renderPassBeginInfo.framebuffer = frameBuffers[i];
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VK_CHECK_RESULT(vkBeginCommandBuffer(drawCmdBuffers[i], &cmdBufInfo));
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vkCmdBeginRenderPass(drawCmdBuffers[i], &renderPassBeginInfo, VK_SUBPASS_CONTENTS_INLINE);
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vkCmdSetViewport(drawCmdBuffers[i], 0, 1, &viewport);
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vkCmdSetScissor(drawCmdBuffers[i], 0, 1, &scissor);
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vkCmdBindDescriptorSets(drawCmdBuffers[i], VK_PIPELINE_BIND_POINT_GRAPHICS, pipelineLayout, 0, 1, &descriptorSet, 0, nullptr);
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// POI: Bind the image that contains the shading rate patterns
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if (enableShadingRate) {
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vkCmdBindShadingRateImageNV(drawCmdBuffers[i], shadingRateImage.view, VK_IMAGE_LAYOUT_SHADING_RATE_OPTIMAL_NV);
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};
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// Render the scene
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Pipelines& pipelines = enableShadingRate ? shadingRatePipelines : basePipelines;
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vkCmdBindPipeline(drawCmdBuffers[i], VK_PIPELINE_BIND_POINT_GRAPHICS, pipelines.opaque);
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scene.draw(drawCmdBuffers[i], vkglTF::RenderFlags::BindImages | vkglTF::RenderFlags::RenderOpaqueNodes, pipelineLayout);
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vkCmdBindPipeline(drawCmdBuffers[i], VK_PIPELINE_BIND_POINT_GRAPHICS, pipelines.masked);
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scene.draw(drawCmdBuffers[i], vkglTF::RenderFlags::BindImages | vkglTF::RenderFlags::RenderAlphaMaskedNodes, pipelineLayout);
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drawUI(drawCmdBuffers[i]);
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vkCmdEndRenderPass(drawCmdBuffers[i]);
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VK_CHECK_RESULT(vkEndCommandBuffer(drawCmdBuffers[i]));
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}
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}
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void VulkanExample::loadAssets()
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{
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vkglTF::descriptorBindingFlags = vkglTF::DescriptorBindingFlags::ImageBaseColor | vkglTF::DescriptorBindingFlags::ImageNormalMap;
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scene.loadFromFile(getAssetPath() + "models/sponza/sponza.gltf", vulkanDevice, queue, vkglTF::FileLoadingFlags::PreTransformVertices);
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}
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void VulkanExample::setupDescriptors()
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{
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// Pool
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const std::vector<VkDescriptorPoolSize> poolSizes = {
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vks::initializers::descriptorPoolSize(VK_DESCRIPTOR_TYPE_UNIFORM_BUFFER, 1),
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};
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VkDescriptorPoolCreateInfo descriptorPoolInfo = vks::initializers::descriptorPoolCreateInfo(poolSizes, 1);
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VK_CHECK_RESULT(vkCreateDescriptorPool(device, &descriptorPoolInfo, nullptr, &descriptorPool));
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// Descriptor set layout
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const std::vector<VkDescriptorSetLayoutBinding> setLayoutBindings = {
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vks::initializers::descriptorSetLayoutBinding(VK_DESCRIPTOR_TYPE_UNIFORM_BUFFER, VK_SHADER_STAGE_VERTEX_BIT | VK_SHADER_STAGE_FRAGMENT_BIT, 0),
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};
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VkDescriptorSetLayoutCreateInfo descriptorLayout = vks::initializers::descriptorSetLayoutCreateInfo(setLayoutBindings);
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VK_CHECK_RESULT(vkCreateDescriptorSetLayout(device, &descriptorLayout, nullptr, &descriptorSetLayout));
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// Pipeline layout
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const std::vector<VkDescriptorSetLayout> setLayouts = {
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descriptorSetLayout,
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vkglTF::descriptorSetLayoutImage,
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};
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VkPipelineLayoutCreateInfo pPipelineLayoutCreateInfo = vks::initializers::pipelineLayoutCreateInfo(setLayouts.data(), 2);
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VK_CHECK_RESULT(vkCreatePipelineLayout(device, &pPipelineLayoutCreateInfo, nullptr, &pipelineLayout));
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// Descriptor set
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VkDescriptorSetAllocateInfo allocInfo = vks::initializers::descriptorSetAllocateInfo(descriptorPool, &descriptorSetLayout, 1);
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VK_CHECK_RESULT(vkAllocateDescriptorSets(device, &allocInfo, &descriptorSet));
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std::vector<VkWriteDescriptorSet> writeDescriptorSets = {
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vks::initializers::writeDescriptorSet(descriptorSet, VK_DESCRIPTOR_TYPE_UNIFORM_BUFFER, 0, &shaderData.buffer.descriptor),
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};
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vkUpdateDescriptorSets(device, static_cast<uint32_t>(writeDescriptorSets.size()), writeDescriptorSets.data(), 0, nullptr);
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}
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// [POI]
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void VulkanExample::prepareShadingRateImage()
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{
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// Shading rate image size depends on shading rate texel size
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// For each texel in the target image, there is a corresponding shading texel size width x height block in the shading rate image
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VkExtent3D imageExtent{};
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imageExtent.width = static_cast<uint32_t>(ceil(width / (float)physicalDeviceShadingRateImagePropertiesNV.shadingRateTexelSize.width));
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imageExtent.height = static_cast<uint32_t>(ceil(height / (float)physicalDeviceShadingRateImagePropertiesNV.shadingRateTexelSize.height));
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imageExtent.depth = 1;
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VkImageCreateInfo imageCI{};
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imageCI.sType = VK_STRUCTURE_TYPE_IMAGE_CREATE_INFO;
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imageCI.imageType = VK_IMAGE_TYPE_2D;
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imageCI.format = VK_FORMAT_R8_UINT;
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imageCI.extent = imageExtent;
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imageCI.mipLevels = 1;
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imageCI.arrayLayers = 1;
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imageCI.samples = VK_SAMPLE_COUNT_1_BIT;
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imageCI.tiling = VK_IMAGE_TILING_OPTIMAL;
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imageCI.initialLayout = VK_IMAGE_LAYOUT_UNDEFINED;
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imageCI.sharingMode = VK_SHARING_MODE_EXCLUSIVE;
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imageCI.usage = VK_IMAGE_USAGE_SHADING_RATE_IMAGE_BIT_NV | VK_IMAGE_USAGE_TRANSFER_DST_BIT;
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VK_CHECK_RESULT(vkCreateImage(device, &imageCI, nullptr, &shadingRateImage.image));
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VkMemoryRequirements memReqs{};
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vkGetImageMemoryRequirements(device, shadingRateImage.image, &memReqs);
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VkDeviceSize bufferSize = imageExtent.width * imageExtent.height * sizeof(uint8_t);
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VkMemoryAllocateInfo memAllloc{};
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memAllloc.sType = VK_STRUCTURE_TYPE_MEMORY_ALLOCATE_INFO;
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memAllloc.allocationSize = memReqs.size;
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memAllloc.memoryTypeIndex = vulkanDevice->getMemoryType(memReqs.memoryTypeBits, VK_MEMORY_PROPERTY_DEVICE_LOCAL_BIT);
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VK_CHECK_RESULT(vkAllocateMemory(device, &memAllloc, nullptr, &shadingRateImage.memory));
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VK_CHECK_RESULT(vkBindImageMemory(device, shadingRateImage.image, shadingRateImage.memory, 0));
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VkImageViewCreateInfo imageViewCI{};
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imageViewCI.sType = VK_STRUCTURE_TYPE_IMAGE_VIEW_CREATE_INFO;
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imageViewCI.viewType = VK_IMAGE_VIEW_TYPE_2D;
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imageViewCI.image = shadingRateImage.image;
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imageViewCI.format = VK_FORMAT_R8_UINT;
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imageViewCI.subresourceRange.baseMipLevel = 0;
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imageViewCI.subresourceRange.levelCount = 1;
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imageViewCI.subresourceRange.baseArrayLayer = 0;
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imageViewCI.subresourceRange.layerCount = 1;
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imageViewCI.subresourceRange.aspectMask = VK_IMAGE_ASPECT_COLOR_BIT;
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VK_CHECK_RESULT(vkCreateImageView(device, &imageViewCI, nullptr, &shadingRateImage.view));
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// Populate with lowest possible shading rate pattern
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uint8_t val = VK_SHADING_RATE_PALETTE_ENTRY_1_INVOCATION_PER_4X4_PIXELS_NV;
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uint8_t* shadingRatePatternData = new uint8_t[bufferSize];
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memset(shadingRatePatternData, val, bufferSize);
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// Create a circular pattern with decreasing sampling rates outwards (max. range, pattern)
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std::map<float, VkShadingRatePaletteEntryNV> patternLookup = {
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{ 8.0f, VK_SHADING_RATE_PALETTE_ENTRY_1_INVOCATION_PER_PIXEL_NV },
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{ 12.0f, VK_SHADING_RATE_PALETTE_ENTRY_1_INVOCATION_PER_2X1_PIXELS_NV },
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{ 16.0f, VK_SHADING_RATE_PALETTE_ENTRY_1_INVOCATION_PER_1X2_PIXELS_NV },
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{ 18.0f, VK_SHADING_RATE_PALETTE_ENTRY_1_INVOCATION_PER_2X2_PIXELS_NV },
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{ 20.0f, VK_SHADING_RATE_PALETTE_ENTRY_1_INVOCATION_PER_4X2_PIXELS_NV },
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{ 24.0f, VK_SHADING_RATE_PALETTE_ENTRY_1_INVOCATION_PER_2X4_PIXELS_NV }
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};
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uint8_t* ptrData = shadingRatePatternData;
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for (uint32_t y = 0; y < imageExtent.height; y++) {
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for (uint32_t x = 0; x < imageExtent.width; x++) {
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const float deltaX = (float)imageExtent.width / 2.0f - (float)x;
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const float deltaY = ((float)imageExtent.height / 2.0f - (float)y) * ((float)width / (float)height);
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const float dist = std::sqrt(deltaX * deltaX + deltaY * deltaY);
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for (auto pattern : patternLookup) {
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if (dist < pattern.first) {
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*ptrData = pattern.second;
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break;
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}
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}
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ptrData++;
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}
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}
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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, &bufferCreateInfo, nullptr, &stagingBuffer));
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VkMemoryAllocateInfo memAllocInfo{};
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memAllocInfo.sType = VK_STRUCTURE_TYPE_MEMORY_ALLOCATE_INFO;
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memReqs = {};
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vkGetBufferMemoryRequirements(device, stagingBuffer, &memReqs);
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memAllocInfo.allocationSize = memReqs.size;
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memAllocInfo.memoryTypeIndex = vulkanDevice->getMemoryType(memReqs.memoryTypeBits, VK_MEMORY_PROPERTY_HOST_VISIBLE_BIT | VK_MEMORY_PROPERTY_HOST_COHERENT_BIT);
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VK_CHECK_RESULT(vkAllocateMemory(device, &memAllocInfo, nullptr, &stagingMemory));
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VK_CHECK_RESULT(vkBindBufferMemory(device, stagingBuffer, stagingMemory, 0));
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uint8_t* mapped;
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VK_CHECK_RESULT(vkMapMemory(device, stagingMemory, 0, memReqs.size, 0, (void**)&mapped));
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memcpy(mapped, shadingRatePatternData, bufferSize);
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vkUnmapMemory(device, stagingMemory);
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delete[] shadingRatePatternData;
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// Upload
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VkCommandBuffer copyCmd = vulkanDevice->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 = shadingRateImage.image;
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imageMemoryBarrier.subresourceRange = subresourceRange;
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vkCmdPipelineBarrier(copyCmd, VK_PIPELINE_STAGE_TOP_OF_PIPE_BIT, VK_PIPELINE_STAGE_TRANSFER_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.layerCount = 1;
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bufferCopyRegion.imageExtent.width = imageExtent.width;
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bufferCopyRegion.imageExtent.height = imageExtent.height;
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bufferCopyRegion.imageExtent.depth = 1;
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vkCmdCopyBufferToImage(copyCmd, stagingBuffer, shadingRateImage.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_SHADING_RATE_OPTIMAL_NV;
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imageMemoryBarrier.srcAccessMask = VK_ACCESS_TRANSFER_WRITE_BIT;
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imageMemoryBarrier.dstAccessMask = 0;
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imageMemoryBarrier.image = shadingRateImage.image;
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imageMemoryBarrier.subresourceRange = subresourceRange;
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vkCmdPipelineBarrier(copyCmd, VK_PIPELINE_STAGE_TRANSFER_BIT, VK_PIPELINE_STAGE_BOTTOM_OF_PIPE_BIT, 0, 0, nullptr, 0, nullptr, 1, &imageMemoryBarrier);
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}
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vulkanDevice->flushCommandBuffer(copyCmd, queue, true);
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vkFreeMemory(device, stagingMemory, nullptr);
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vkDestroyBuffer(device, stagingBuffer, nullptr);
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}
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void VulkanExample::preparePipelines()
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{
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VkPipelineInputAssemblyStateCreateInfo inputAssemblyStateCI = vks::initializers::pipelineInputAssemblyStateCreateInfo(VK_PRIMITIVE_TOPOLOGY_TRIANGLE_LIST, 0, VK_FALSE);
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VkPipelineRasterizationStateCreateInfo rasterizationStateCI = vks::initializers::pipelineRasterizationStateCreateInfo(VK_POLYGON_MODE_FILL, VK_CULL_MODE_BACK_BIT, VK_FRONT_FACE_COUNTER_CLOCKWISE, 0);
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VkPipelineColorBlendAttachmentState blendAttachmentStateCI = vks::initializers::pipelineColorBlendAttachmentState(0xf, VK_FALSE);
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VkPipelineColorBlendStateCreateInfo colorBlendStateCI = vks::initializers::pipelineColorBlendStateCreateInfo(1, &blendAttachmentStateCI);
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VkPipelineDepthStencilStateCreateInfo depthStencilStateCI = vks::initializers::pipelineDepthStencilStateCreateInfo(VK_TRUE, VK_TRUE, VK_COMPARE_OP_LESS_OR_EQUAL);
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VkPipelineViewportStateCreateInfo viewportStateCI = vks::initializers::pipelineViewportStateCreateInfo(1, 1, 0);
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VkPipelineMultisampleStateCreateInfo multisampleStateCI = vks::initializers::pipelineMultisampleStateCreateInfo(VK_SAMPLE_COUNT_1_BIT, 0);
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const std::vector<VkDynamicState> dynamicStateEnables = { VK_DYNAMIC_STATE_VIEWPORT, VK_DYNAMIC_STATE_SCISSOR };
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VkPipelineDynamicStateCreateInfo dynamicStateCI = vks::initializers::pipelineDynamicStateCreateInfo(dynamicStateEnables.data(), static_cast<uint32_t>(dynamicStateEnables.size()), 0);
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std::array<VkPipelineShaderStageCreateInfo, 2> shaderStages;
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VkGraphicsPipelineCreateInfo pipelineCI = vks::initializers::pipelineCreateInfo(pipelineLayout, renderPass, 0);
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pipelineCI.pInputAssemblyState = &inputAssemblyStateCI;
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pipelineCI.pRasterizationState = &rasterizationStateCI;
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pipelineCI.pColorBlendState = &colorBlendStateCI;
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pipelineCI.pMultisampleState = &multisampleStateCI;
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pipelineCI.pViewportState = &viewportStateCI;
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pipelineCI.pDepthStencilState = &depthStencilStateCI;
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pipelineCI.pDynamicState = &dynamicStateCI;
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pipelineCI.stageCount = static_cast<uint32_t>(shaderStages.size());
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pipelineCI.pStages = shaderStages.data();
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pipelineCI.pVertexInputState = vkglTF::Vertex::getPipelineVertexInputState({ vkglTF::VertexComponent::Position, vkglTF::VertexComponent::Normal, vkglTF::VertexComponent::UV, vkglTF::VertexComponent::Color, vkglTF::VertexComponent::Tangent });
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shaderStages[0] = loadShader(getShadersPath() + "variablerateshading/scene.vert.spv", VK_SHADER_STAGE_VERTEX_BIT);
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shaderStages[1] = loadShader(getShadersPath() + "variablerateshading/scene.frag.spv", VK_SHADER_STAGE_FRAGMENT_BIT);
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// Properties for alpha masked materials will be passed via specialization constants
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struct SpecializationData {
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VkBool32 alphaMask;
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float alphaMaskCutoff;
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} specializationData;
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specializationData.alphaMask = false;
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specializationData.alphaMaskCutoff = 0.5f;
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const std::vector<VkSpecializationMapEntry> specializationMapEntries = {
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vks::initializers::specializationMapEntry(0, offsetof(SpecializationData, alphaMask), sizeof(SpecializationData::alphaMask)),
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vks::initializers::specializationMapEntry(1, offsetof(SpecializationData, alphaMaskCutoff), sizeof(SpecializationData::alphaMaskCutoff)),
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};
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VkSpecializationInfo specializationInfo = vks::initializers::specializationInfo(specializationMapEntries, sizeof(specializationData), &specializationData);
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shaderStages[1].pSpecializationInfo = &specializationInfo;
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// Create pipeline without shading rate
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VK_CHECK_RESULT(vkCreateGraphicsPipelines(device, pipelineCache, 1, &pipelineCI, nullptr, &basePipelines.opaque));
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specializationData.alphaMask = true;
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rasterizationStateCI.cullMode = VK_CULL_MODE_NONE;
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VK_CHECK_RESULT(vkCreateGraphicsPipelines(device, pipelineCache, 1, &pipelineCI, nullptr, &basePipelines.masked));
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|
rasterizationStateCI.cullMode = VK_CULL_MODE_BACK_BIT;
|
|
specializationData.alphaMask = false;
|
|
|
|
// Create pipeline with shading rate enabled
|
|
// [POI] Possible per-Viewport shading rate palette entries
|
|
const std::vector<VkShadingRatePaletteEntryNV> shadingRatePaletteEntries = {
|
|
VK_SHADING_RATE_PALETTE_ENTRY_NO_INVOCATIONS_NV,
|
|
VK_SHADING_RATE_PALETTE_ENTRY_16_INVOCATIONS_PER_PIXEL_NV,
|
|
VK_SHADING_RATE_PALETTE_ENTRY_8_INVOCATIONS_PER_PIXEL_NV,
|
|
VK_SHADING_RATE_PALETTE_ENTRY_4_INVOCATIONS_PER_PIXEL_NV,
|
|
VK_SHADING_RATE_PALETTE_ENTRY_2_INVOCATIONS_PER_PIXEL_NV,
|
|
VK_SHADING_RATE_PALETTE_ENTRY_1_INVOCATION_PER_PIXEL_NV,
|
|
VK_SHADING_RATE_PALETTE_ENTRY_1_INVOCATION_PER_2X1_PIXELS_NV,
|
|
VK_SHADING_RATE_PALETTE_ENTRY_1_INVOCATION_PER_1X2_PIXELS_NV,
|
|
VK_SHADING_RATE_PALETTE_ENTRY_1_INVOCATION_PER_2X2_PIXELS_NV,
|
|
VK_SHADING_RATE_PALETTE_ENTRY_1_INVOCATION_PER_4X2_PIXELS_NV,
|
|
VK_SHADING_RATE_PALETTE_ENTRY_1_INVOCATION_PER_2X4_PIXELS_NV,
|
|
VK_SHADING_RATE_PALETTE_ENTRY_1_INVOCATION_PER_4X4_PIXELS_NV,
|
|
};
|
|
VkShadingRatePaletteNV shadingRatePalette{};
|
|
shadingRatePalette.shadingRatePaletteEntryCount = static_cast<uint32_t>(shadingRatePaletteEntries.size());
|
|
shadingRatePalette.pShadingRatePaletteEntries = shadingRatePaletteEntries.data();
|
|
VkPipelineViewportShadingRateImageStateCreateInfoNV pipelineViewportShadingRateImageStateCI{};
|
|
pipelineViewportShadingRateImageStateCI.sType = VK_STRUCTURE_TYPE_PIPELINE_VIEWPORT_SHADING_RATE_IMAGE_STATE_CREATE_INFO_NV;
|
|
pipelineViewportShadingRateImageStateCI.shadingRateImageEnable = VK_TRUE;
|
|
pipelineViewportShadingRateImageStateCI.viewportCount = 1;
|
|
pipelineViewportShadingRateImageStateCI.pShadingRatePalettes = &shadingRatePalette;
|
|
viewportStateCI.pNext = &pipelineViewportShadingRateImageStateCI;
|
|
VK_CHECK_RESULT(vkCreateGraphicsPipelines(device, pipelineCache, 1, &pipelineCI, nullptr, &shadingRatePipelines.opaque));
|
|
specializationData.alphaMask = true;
|
|
rasterizationStateCI.cullMode = VK_CULL_MODE_NONE;
|
|
VK_CHECK_RESULT(vkCreateGraphicsPipelines(device, pipelineCache, 1, &pipelineCI, nullptr, &shadingRatePipelines.masked));
|
|
}
|
|
|
|
void VulkanExample::prepareUniformBuffers()
|
|
{
|
|
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)));
|
|
VK_CHECK_RESULT(shaderData.buffer.map());
|
|
updateUniformBuffers();
|
|
}
|
|
|
|
void VulkanExample::updateUniformBuffers()
|
|
{
|
|
shaderData.values.projection = camera.matrices.perspective;
|
|
shaderData.values.view = camera.matrices.view;
|
|
shaderData.values.viewPos = camera.viewPos;
|
|
shaderData.values.colorShadingRate = colorShadingRate;
|
|
memcpy(shaderData.buffer.mapped, &shaderData.values, sizeof(shaderData.values));
|
|
}
|
|
|
|
void VulkanExample::prepare()
|
|
{
|
|
VulkanExampleBase::prepare();
|
|
loadAssets();
|
|
|
|
// [POI]
|
|
vkCmdBindShadingRateImageNV = reinterpret_cast<PFN_vkCmdBindShadingRateImageNV>(vkGetDeviceProcAddr(device, "vkCmdBindShadingRateImageNV"));
|
|
physicalDeviceShadingRateImagePropertiesNV.sType = VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_SHADING_RATE_IMAGE_PROPERTIES_NV;
|
|
VkPhysicalDeviceProperties2 deviceProperties2{};
|
|
deviceProperties2.sType = VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_PROPERTIES_2;
|
|
deviceProperties2.pNext = &physicalDeviceShadingRateImagePropertiesNV;
|
|
vkGetPhysicalDeviceProperties2(physicalDevice, &deviceProperties2);
|
|
|
|
prepareShadingRateImage();
|
|
prepareUniformBuffers();
|
|
setupDescriptors();
|
|
preparePipelines();
|
|
buildCommandBuffers();
|
|
prepared = true;
|
|
}
|
|
|
|
void VulkanExample::render()
|
|
{
|
|
renderFrame();
|
|
if (camera.updated) {
|
|
updateUniformBuffers();
|
|
}
|
|
}
|
|
|
|
void VulkanExample::OnUpdateUIOverlay(vks::UIOverlay* overlay)
|
|
{
|
|
if (overlay->checkBox("Enable shading rate", &enableShadingRate)) {
|
|
buildCommandBuffers();
|
|
}
|
|
if (overlay->checkBox("Color shading rates", &colorShadingRate)) {
|
|
updateUniformBuffers();
|
|
}
|
|
}
|
|
|
|
VULKAN_EXAMPLE_MAIN()
|