2016-12-26 19:08:03 +01:00
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/*
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* Vulkan Example - Shader specialization constants
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*
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2017-01-01 15:41:23 +01:00
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* For details see https://www.khronos.org/registry/vulkan/specs/misc/GL_KHR_vulkan_glsl.txt
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*
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2016-12-26 19:08:03 +01:00
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* Copyright (C) 2016 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 "vulkanexamplebase.h"
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2020-07-28 20:20:38 +02:00
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#include "VulkanglTFModel.h"
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2016-12-26 19:08:03 +01:00
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#define ENABLE_VALIDATION false
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2020-05-29 16:08:53 +01:00
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class VulkanExample: public VulkanExampleBase
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2016-12-26 19:08:03 +01:00
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{
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public:
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2020-07-28 20:20:38 +02:00
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vkglTF::Model scene;
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vks::Texture2D colormap;
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2017-02-12 10:44:51 +01:00
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vks::Buffer uniformBuffer;
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2016-12-26 19:08:03 +01:00
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// Same uniform buffer layout as shader
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struct UBOVS {
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glm::mat4 projection;
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glm::mat4 modelView;
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glm::vec4 lightPos = glm::vec4(0.0f, -2.0f, 1.0f, 0.0f);
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} uboVS;
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VkPipelineLayout pipelineLayout;
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VkDescriptorSet descriptorSet;
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VkDescriptorSetLayout descriptorSetLayout;
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struct {
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VkPipeline phong;
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VkPipeline toon;
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VkPipeline textured;
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} pipelines;
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VulkanExample() : VulkanExampleBase(ENABLE_VALIDATION)
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{
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2017-11-01 14:22:10 +01:00
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title = "Specialization constants";
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2016-12-26 19:08:03 +01:00
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camera.type = Camera::CameraType::lookat;
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camera.setPerspective(60.0f, ((float)width / 3.0f) / (float)height, 0.1f, 512.0f);
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camera.setRotation(glm::vec3(-40.0f, -90.0f, 0.0f));
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camera.setTranslation(glm::vec3(0.0f, 0.0f, -2.0f));
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}
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~VulkanExample()
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{
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vkDestroyPipeline(device, pipelines.phong, nullptr);
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vkDestroyPipeline(device, pipelines.textured, nullptr);
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vkDestroyPipeline(device, pipelines.toon, nullptr);
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2016-12-26 19:08:03 +01:00
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vkDestroyPipelineLayout(device, pipelineLayout, nullptr);
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vkDestroyDescriptorSetLayout(device, descriptorSetLayout, nullptr);
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2020-07-28 20:20:38 +02:00
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colormap.destroy();
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2016-12-26 19:08:03 +01:00
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uniformBuffer.destroy();
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}
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void buildCommandBuffers()
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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[1].depthStencil = { 1.0f, 0 };
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2017-02-12 11:12:42 +01:00
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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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for (int32_t i = 0; i < drawCmdBuffers.size(); ++i)
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{
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// Set target frame buffer
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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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2017-02-12 11:12:42 +01:00
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VkRect2D scissor = vks::initializers::rect2D(width, height, 0, 0);
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2016-12-26 19:08:03 +01:00
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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, NULL);
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VkDeviceSize offsets[1] = { 0 };
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// Left
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2020-06-24 20:07:04 +02:00
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VkViewport viewport = vks::initializers::viewport((float) width / 3.0f, (float) height, 0.0f, 1.0f);
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2016-12-26 19:08:03 +01:00
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vkCmdSetViewport(drawCmdBuffers[i], 0, 1, &viewport);
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vkCmdBindPipeline(drawCmdBuffers[i], VK_PIPELINE_BIND_POINT_GRAPHICS, pipelines.phong);
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2020-07-28 20:20:38 +02:00
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scene.draw(drawCmdBuffers[i]);
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2016-12-26 19:08:03 +01:00
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// Center
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viewport.x = (float)width / 3.0f;
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2016-12-26 19:08:03 +01:00
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vkCmdSetViewport(drawCmdBuffers[i], 0, 1, &viewport);
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vkCmdBindPipeline(drawCmdBuffers[i], VK_PIPELINE_BIND_POINT_GRAPHICS, pipelines.toon);
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2020-07-28 20:20:38 +02:00
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scene.draw(drawCmdBuffers[i]);
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2016-12-26 19:08:03 +01:00
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// Right
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viewport.x = (float)width / 3.0f + (float)width / 3.0f;
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vkCmdSetViewport(drawCmdBuffers[i], 0, 1, &viewport);
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vkCmdBindPipeline(drawCmdBuffers[i], VK_PIPELINE_BIND_POINT_GRAPHICS, pipelines.textured);
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scene.draw(drawCmdBuffers[i]);
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2016-12-26 19:08:03 +01:00
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2018-08-30 21:08:02 +02:00
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drawUI(drawCmdBuffers[i]);
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2016-12-26 19:08:03 +01:00
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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 loadAssets()
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{
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2020-07-28 20:20:38 +02:00
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scene.loadFromFile(getAssetPath() + "models/color_teapot_spheres.gltf", vulkanDevice, queue , vkglTF::FileLoadingFlags::PreTransformVertices | vkglTF::FileLoadingFlags::PreMultiplyVertexColors | vkglTF::FileLoadingFlags::FlipY);
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colormap.loadFromFile(getAssetPath() + "textures/metalplate_nomips_rgba.ktx", VK_FORMAT_R8G8B8A8_UNORM, vulkanDevice, queue);
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2016-12-26 19:08:03 +01:00
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}
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void setupDescriptorPool()
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{
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std::vector<VkDescriptorPoolSize> poolSizes =
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{
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2017-02-12 11:12:42 +01:00
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vks::initializers::descriptorPoolSize(VK_DESCRIPTOR_TYPE_UNIFORM_BUFFER, 1),
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vks::initializers::descriptorPoolSize(VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER, 1)
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2016-12-26 19:08:03 +01:00
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};
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VkDescriptorPoolCreateInfo descriptorPoolInfo =
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vks::initializers::descriptorPoolCreateInfo(
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static_cast<uint32_t>(poolSizes.size()),
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poolSizes.data(),
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1);
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VK_CHECK_RESULT(vkCreateDescriptorPool(device, &descriptorPoolInfo, nullptr, &descriptorPool));
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}
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void setupDescriptorSetLayout()
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{
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std::vector<VkDescriptorSetLayoutBinding> setLayoutBindings ={
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vks::initializers::descriptorSetLayoutBinding(VK_DESCRIPTOR_TYPE_UNIFORM_BUFFER, VK_SHADER_STAGE_VERTEX_BIT, 0),
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vks::initializers::descriptorSetLayoutBinding(VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER, VK_SHADER_STAGE_FRAGMENT_BIT, 1),
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2016-12-26 19:08:03 +01:00
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};
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VkDescriptorSetLayoutCreateInfo descriptorLayout =
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vks::initializers::descriptorSetLayoutCreateInfo(
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setLayoutBindings.data(),
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static_cast<uint32_t>(setLayoutBindings.size()));
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VK_CHECK_RESULT(vkCreateDescriptorSetLayout(device, &descriptorLayout, nullptr, &descriptorSetLayout));
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VkPipelineLayoutCreateInfo pPipelineLayoutCreateInfo =
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vks::initializers::pipelineLayoutCreateInfo(
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2016-12-26 19:08:03 +01:00
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&descriptorSetLayout,
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1);
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VK_CHECK_RESULT(vkCreatePipelineLayout(device, &pPipelineLayoutCreateInfo, nullptr, &pipelineLayout));
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}
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void setupDescriptorSet()
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{
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VkDescriptorSetAllocateInfo allocInfo =
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2017-02-12 11:12:42 +01:00
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vks::initializers::descriptorSetAllocateInfo(
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2016-12-26 19:08:03 +01:00
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descriptorPool,
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&descriptorSetLayout,
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1);
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VK_CHECK_RESULT(vkAllocateDescriptorSets(device, &allocInfo, &descriptorSet));
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2020-05-29 16:08:53 +01:00
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std::vector<VkWriteDescriptorSet> writeDescriptorSets = {
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vks::initializers::writeDescriptorSet(descriptorSet, VK_DESCRIPTOR_TYPE_UNIFORM_BUFFER, 0, &uniformBuffer.descriptor),
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vks::initializers::writeDescriptorSet(descriptorSet, VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER, 1, &colormap.descriptor),
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2016-12-26 19:08:03 +01:00
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};
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2017-01-01 15:41:23 +01:00
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vkUpdateDescriptorSets(device, static_cast<uint32_t>(writeDescriptorSets.size()), writeDescriptorSets.data(), 0, NULL);
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2016-12-26 19:08:03 +01:00
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}
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void preparePipelines()
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{
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2020-07-28 20:20:38 +02:00
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VkPipelineInputAssemblyStateCreateInfo inputAssemblyState = vks::initializers::pipelineInputAssemblyStateCreateInfo(VK_PRIMITIVE_TOPOLOGY_TRIANGLE_LIST, 0, VK_FALSE);
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VkPipelineRasterizationStateCreateInfo rasterizationState = vks::initializers::pipelineRasterizationStateCreateInfo(VK_POLYGON_MODE_FILL, VK_CULL_MODE_NONE, VK_FRONT_FACE_CLOCKWISE, 0);
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VkPipelineColorBlendAttachmentState blendAttachmentState = vks::initializers::pipelineColorBlendAttachmentState(0xf, VK_FALSE);
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VkPipelineColorBlendStateCreateInfo colorBlendState = vks::initializers::pipelineColorBlendStateCreateInfo(1, &blendAttachmentState);
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VkPipelineDepthStencilStateCreateInfo depthStencilState = vks::initializers::pipelineDepthStencilStateCreateInfo(VK_TRUE, VK_TRUE, VK_COMPARE_OP_LESS_OR_EQUAL);
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VkPipelineViewportStateCreateInfo viewportState = vks::initializers::pipelineViewportStateCreateInfo(1, 1, 0);
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VkPipelineMultisampleStateCreateInfo multisampleState = vks::initializers::pipelineMultisampleStateCreateInfo(VK_SAMPLE_COUNT_1_BIT, 0);
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std::vector<VkDynamicState> dynamicStateEnables = { VK_DYNAMIC_STATE_VIEWPORT, VK_DYNAMIC_STATE_SCISSOR, VK_DYNAMIC_STATE_LINE_WIDTH };
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VkPipelineDynamicStateCreateInfo dynamicState = vks::initializers::pipelineDynamicStateCreateInfo(dynamicStateEnables);
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std::array<VkPipelineShaderStageCreateInfo, 2> shaderStages;
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2020-07-28 20:20:38 +02:00
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VkGraphicsPipelineCreateInfo pipelineCI = vks::initializers::pipelineCreateInfo(pipelineLayout, renderPass, 0);
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pipelineCI.pInputAssemblyState = &inputAssemblyState;
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pipelineCI.pRasterizationState = &rasterizationState;
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pipelineCI.pColorBlendState = &colorBlendState;
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pipelineCI.pMultisampleState = &multisampleState;
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pipelineCI.pViewportState = &viewportState;
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pipelineCI.pDepthStencilState = &depthStencilState;
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pipelineCI.pDynamicState = &dynamicState;
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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 });
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2016-12-26 19:08:03 +01:00
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// Prepare specialization data
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// Host data to take specialization constants from
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struct SpecializationData {
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// Sets the lighting model used in the fragment "uber" shader
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uint32_t lightingModel;
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// Parameter for the toon shading part of the fragment shader
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float toonDesaturationFactor = 0.5f;
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2016-12-26 19:08:03 +01:00
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} specializationData;
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// Each shader constant of a shader stage corresponds to one map entry
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std::array<VkSpecializationMapEntry, 2> specializationMapEntries;
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// Shader bindings based on specialization constants are marked by the new "constant_id" layout qualifier:
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// layout (constant_id = 0) const int LIGHTING_MODEL = 0;
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// layout (constant_id = 1) const float PARAM_TOON_DESATURATION = 0.0f;
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// Map entry for the lighting model to be used by the fragment shader
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specializationMapEntries[0].constantID = 0;
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specializationMapEntries[0].size = sizeof(specializationData.lightingModel);
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specializationMapEntries[0].offset = 0;
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2017-01-01 15:41:23 +01:00
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// Map entry for the toon shader parameter
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specializationMapEntries[1].constantID = 1;
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specializationMapEntries[1].size = sizeof(specializationData.toonDesaturationFactor);
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specializationMapEntries[1].offset = offsetof(SpecializationData, toonDesaturationFactor);
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2016-12-26 19:08:03 +01:00
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// Prepare specialization info block for the shader stage
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VkSpecializationInfo specializationInfo{};
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specializationInfo.dataSize = sizeof(specializationData);
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specializationInfo.mapEntryCount = static_cast<uint32_t>(specializationMapEntries.size());
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specializationInfo.pMapEntries = specializationMapEntries.data();
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specializationInfo.pData = &specializationData;
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// Create pipelines
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// All pipelines will use the same "uber" shader and specialization constants to change branching and parameters of that shader
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shaderStages[0] = loadShader(getShadersPath() + "specializationconstants/uber.vert.spv", VK_SHADER_STAGE_VERTEX_BIT);
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shaderStages[1] = loadShader(getShadersPath() + "specializationconstants/uber.frag.spv", VK_SHADER_STAGE_FRAGMENT_BIT);
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2016-12-26 19:08:03 +01:00
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// Specialization info is assigned is part of the shader stage (modul) and must be set after creating the module and before creating the pipeline
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|
|
shaderStages[1].pSpecializationInfo = &specializationInfo;
|
|
|
|
|
|
|
|
|
|
// Solid phong shading
|
|
|
|
|
specializationData.lightingModel = 0;
|
2020-07-28 20:20:38 +02:00
|
|
|
VK_CHECK_RESULT(vkCreateGraphicsPipelines(device, pipelineCache, 1, &pipelineCI, nullptr, &pipelines.phong));
|
2016-12-26 19:08:03 +01:00
|
|
|
|
|
|
|
|
// Phong and textured
|
|
|
|
|
specializationData.lightingModel = 1;
|
2020-07-28 20:20:38 +02:00
|
|
|
VK_CHECK_RESULT(vkCreateGraphicsPipelines(device, pipelineCache, 1, &pipelineCI, nullptr, &pipelines.toon));
|
2016-12-26 19:08:03 +01:00
|
|
|
|
|
|
|
|
// Textured discard
|
|
|
|
|
specializationData.lightingModel = 2;
|
2020-07-28 20:20:38 +02:00
|
|
|
VK_CHECK_RESULT(vkCreateGraphicsPipelines(device, pipelineCache, 1, &pipelineCI, nullptr, &pipelines.textured));
|
2016-12-26 19:08:03 +01:00
|
|
|
}
|
|
|
|
|
|
|
|
|
|
// Prepare and initialize uniform buffer containing shader uniforms
|
|
|
|
|
void prepareUniformBuffers()
|
|
|
|
|
{
|
|
|
|
|
// Create the 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,
|
|
|
|
|
&uniformBuffer,
|
|
|
|
|
sizeof(uboVS)));
|
|
|
|
|
|
|
|
|
|
// Map persistent
|
|
|
|
|
VK_CHECK_RESULT(uniformBuffer.map());
|
|
|
|
|
|
|
|
|
|
updateUniformBuffers();
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
void updateUniformBuffers()
|
|
|
|
|
{
|
2018-10-21 09:47:29 +02:00
|
|
|
camera.setPerspective(60.0f, ((float)width / 3.0f) / (float)height, 0.1f, 512.0f);
|
|
|
|
|
|
2016-12-26 19:08:03 +01:00
|
|
|
uboVS.projection = camera.matrices.perspective;
|
|
|
|
|
uboVS.modelView = camera.matrices.view;
|
|
|
|
|
|
|
|
|
|
memcpy(uniformBuffer.mapped, &uboVS, sizeof(uboVS));
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
void draw()
|
|
|
|
|
{
|
|
|
|
|
VulkanExampleBase::prepareFrame();
|
|
|
|
|
|
|
|
|
|
submitInfo.commandBufferCount = 1;
|
|
|
|
|
submitInfo.pCommandBuffers = &drawCmdBuffers[currentBuffer];
|
|
|
|
|
VK_CHECK_RESULT(vkQueueSubmit(queue, 1, &submitInfo, VK_NULL_HANDLE));
|
|
|
|
|
|
|
|
|
|
VulkanExampleBase::submitFrame();
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
void prepare()
|
|
|
|
|
{
|
|
|
|
|
VulkanExampleBase::prepare();
|
|
|
|
|
loadAssets();
|
|
|
|
|
prepareUniformBuffers();
|
|
|
|
|
setupDescriptorSetLayout();
|
|
|
|
|
preparePipelines();
|
|
|
|
|
setupDescriptorPool();
|
|
|
|
|
setupDescriptorSet();
|
|
|
|
|
buildCommandBuffers();
|
|
|
|
|
prepared = true;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
virtual void render()
|
|
|
|
|
{
|
2018-10-21 09:47:29 +02:00
|
|
|
if (!prepared) {
|
2016-12-26 19:08:03 +01:00
|
|
|
return;
|
2018-10-21 09:47:29 +02:00
|
|
|
}
|
2016-12-26 19:08:03 +01:00
|
|
|
draw();
|
2018-10-21 09:47:29 +02:00
|
|
|
if (camera.updated) {
|
|
|
|
|
updateUniformBuffers();
|
|
|
|
|
}
|
2016-12-26 19:08:03 +01:00
|
|
|
}
|
|
|
|
|
|
2020-05-29 16:08:53 +01:00
|
|
|
virtual void windowResized()
|
2016-12-26 19:08:03 +01:00
|
|
|
{
|
|
|
|
|
updateUniformBuffers();
|
|
|
|
|
}
|
|
|
|
|
};
|
|
|
|
|
|
|
|
|
|
VULKAN_EXAMPLE_MAIN()
|