894 lines
37 KiB
C++
894 lines
37 KiB
C++
/*
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* Vulkan Example - High dynamic range rendering
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*
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* Note: Requires the separate asset pack (see data/README.md)
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*
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* Copyright 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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#include "VulkanglTFModel.h"
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#define ENABLE_VALIDATION false
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class VulkanExample : public VulkanExampleBase
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{
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public:
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bool bloom = true;
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bool displaySkybox = true;
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struct {
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vks::TextureCubeMap envmap;
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} textures;
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struct Models {
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vkglTF::Model skybox;
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std::vector<vkglTF::Model> objects;
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int32_t objectIndex = 1;
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} models;
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struct {
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vks::Buffer matrices;
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vks::Buffer params;
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} uniformBuffers;
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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::mat4 inverseModelview;
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} uboVS;
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struct UBOParams {
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float exposure = 1.0f;
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} uboParams;
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struct {
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VkPipeline skybox;
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VkPipeline reflect;
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VkPipeline composition;
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VkPipeline bloom[2];
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} pipelines;
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struct {
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VkPipelineLayout models;
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VkPipelineLayout composition;
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VkPipelineLayout bloomFilter;
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} pipelineLayouts;
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struct {
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VkDescriptorSet object;
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VkDescriptorSet skybox;
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VkDescriptorSet composition;
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VkDescriptorSet bloomFilter;
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} descriptorSets;
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struct {
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VkDescriptorSetLayout models;
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VkDescriptorSetLayout composition;
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VkDescriptorSetLayout bloomFilter;
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} descriptorSetLayouts;
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// Framebuffer for offscreen rendering
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struct FrameBufferAttachment {
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VkImage image;
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VkDeviceMemory mem;
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VkImageView view;
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VkFormat format;
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void destroy(VkDevice device)
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{
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vkDestroyImageView(device, view, nullptr);
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vkDestroyImage(device, image, nullptr);
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vkFreeMemory(device, mem, nullptr);
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}
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};
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struct FrameBuffer {
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int32_t width, height;
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VkFramebuffer frameBuffer;
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FrameBufferAttachment color[2];
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FrameBufferAttachment depth;
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VkRenderPass renderPass;
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VkSampler sampler;
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} offscreen;
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struct {
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int32_t width, height;
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VkFramebuffer frameBuffer;
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FrameBufferAttachment color[1];
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VkRenderPass renderPass;
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VkSampler sampler;
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} filterPass;
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std::vector<std::string> objectNames;
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VulkanExample() : VulkanExampleBase(ENABLE_VALIDATION)
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{
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title = "High dynamic range rendering";
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camera.type = Camera::CameraType::lookat;
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camera.setPosition(glm::vec3(0.0f, 0.0f, -6.0f));
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camera.setRotation(glm::vec3(0.0f, 0.0f, 0.0f));
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camera.setPerspective(60.0f, (float)width / (float)height, 0.1f, 256.0f);
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settings.overlay = true;
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}
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~VulkanExample()
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{
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vkDestroyPipeline(device, pipelines.skybox, nullptr);
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vkDestroyPipeline(device, pipelines.reflect, nullptr);
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vkDestroyPipeline(device, pipelines.composition, nullptr);
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vkDestroyPipeline(device, pipelines.bloom[0], nullptr);
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vkDestroyPipeline(device, pipelines.bloom[1], nullptr);
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vkDestroyPipelineLayout(device, pipelineLayouts.models, nullptr);
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vkDestroyPipelineLayout(device, pipelineLayouts.composition, nullptr);
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vkDestroyPipelineLayout(device, pipelineLayouts.bloomFilter, nullptr);
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vkDestroyDescriptorSetLayout(device, descriptorSetLayouts.models, nullptr);
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vkDestroyDescriptorSetLayout(device, descriptorSetLayouts.composition, nullptr);
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vkDestroyDescriptorSetLayout(device, descriptorSetLayouts.bloomFilter, nullptr);
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vkDestroyRenderPass(device, offscreen.renderPass, nullptr);
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vkDestroyRenderPass(device, filterPass.renderPass, nullptr);
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vkDestroyFramebuffer(device, offscreen.frameBuffer, nullptr);
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vkDestroyFramebuffer(device, filterPass.frameBuffer, nullptr);
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vkDestroySampler(device, offscreen.sampler, nullptr);
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vkDestroySampler(device, filterPass.sampler, nullptr);
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offscreen.depth.destroy(device);
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offscreen.color[0].destroy(device);
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offscreen.color[1].destroy(device);
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filterPass.color[0].destroy(device);
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uniformBuffers.matrices.destroy();
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uniformBuffers.params.destroy();
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textures.envmap.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 = { { 0.0f, 0.0f, 0.0f, 0.0f } };
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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.clearValueCount = 2;
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renderPassBeginInfo.pClearValues = clearValues;
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VkViewport viewport;
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VkRect2D scissor;
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for (int32_t i = 0; i < drawCmdBuffers.size(); ++i)
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{
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VK_CHECK_RESULT(vkBeginCommandBuffer(drawCmdBuffers[i], &cmdBufInfo));
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{
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/*
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First pass: Render scene to offscreen framebuffer
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*/
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std::array<VkClearValue, 3> clearValues;
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clearValues[0].color = { { 0.0f, 0.0f, 0.0f, 0.0f } };
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clearValues[1].color = { { 0.0f, 0.0f, 0.0f, 0.0f } };
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clearValues[2].depthStencil = { 1.0f, 0 };
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VkRenderPassBeginInfo renderPassBeginInfo = vks::initializers::renderPassBeginInfo();
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renderPassBeginInfo.renderPass = offscreen.renderPass;
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renderPassBeginInfo.framebuffer = offscreen.frameBuffer;
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renderPassBeginInfo.renderArea.extent.width = offscreen.width;
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renderPassBeginInfo.renderArea.extent.height = offscreen.height;
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renderPassBeginInfo.clearValueCount = 3;
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renderPassBeginInfo.pClearValues = clearValues.data();
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vkCmdBeginRenderPass(drawCmdBuffers[i], &renderPassBeginInfo, VK_SUBPASS_CONTENTS_INLINE);
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VkViewport viewport = vks::initializers::viewport((float)offscreen.width, (float)offscreen.height, 0.0f, 1.0f);
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vkCmdSetViewport(drawCmdBuffers[i], 0, 1, &viewport);
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VkRect2D scissor = vks::initializers::rect2D(offscreen.width, offscreen.height, 0, 0);
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vkCmdSetScissor(drawCmdBuffers[i], 0, 1, &scissor);
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VkDeviceSize offsets[1] = { 0 };
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// Skybox
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if (displaySkybox)
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{
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vkCmdBindDescriptorSets(drawCmdBuffers[i], VK_PIPELINE_BIND_POINT_GRAPHICS, pipelineLayouts.models, 0, 1, &descriptorSets.skybox, 0, NULL);
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vkCmdBindVertexBuffers(drawCmdBuffers[i], 0, 1, &models.skybox.vertices.buffer, offsets);
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vkCmdBindIndexBuffer(drawCmdBuffers[i], models.skybox.indices.buffer, 0, VK_INDEX_TYPE_UINT32);
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vkCmdBindPipeline(drawCmdBuffers[i], VK_PIPELINE_BIND_POINT_GRAPHICS, pipelines.skybox);
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models.skybox.draw(drawCmdBuffers[i]);
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}
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// 3D object
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vkCmdBindDescriptorSets(drawCmdBuffers[i], VK_PIPELINE_BIND_POINT_GRAPHICS, pipelineLayouts.models, 0, 1, &descriptorSets.object, 0, NULL);
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vkCmdBindVertexBuffers(drawCmdBuffers[i], 0, 1, &models.objects[models.objectIndex].vertices.buffer, offsets);
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vkCmdBindIndexBuffer(drawCmdBuffers[i], models.objects[models.objectIndex].indices.buffer, 0, VK_INDEX_TYPE_UINT32);
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vkCmdBindPipeline(drawCmdBuffers[i], VK_PIPELINE_BIND_POINT_GRAPHICS, pipelines.reflect);
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models.objects[models.objectIndex].draw(drawCmdBuffers[i]);
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vkCmdEndRenderPass(drawCmdBuffers[i]);
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}
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/*
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Second render pass: First bloom pass
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*/
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if (bloom) {
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VkClearValue clearValues[2];
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clearValues[0].color = { { 0.0f, 0.0f, 0.0f, 0.0f } };
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clearValues[1].depthStencil = { 1.0f, 0 };
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// Bloom filter
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VkRenderPassBeginInfo renderPassBeginInfo = vks::initializers::renderPassBeginInfo();
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renderPassBeginInfo.framebuffer = filterPass.frameBuffer;
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renderPassBeginInfo.renderPass = filterPass.renderPass;
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renderPassBeginInfo.clearValueCount = 1;
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renderPassBeginInfo.renderArea.extent.width = filterPass.width;
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renderPassBeginInfo.renderArea.extent.height = filterPass.height;
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renderPassBeginInfo.pClearValues = clearValues;
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vkCmdBeginRenderPass(drawCmdBuffers[i], &renderPassBeginInfo, VK_SUBPASS_CONTENTS_INLINE);
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VkViewport viewport = vks::initializers::viewport((float)filterPass.width, (float)filterPass.height, 0.0f, 1.0f);
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vkCmdSetViewport(drawCmdBuffers[i], 0, 1, &viewport);
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VkRect2D scissor = vks::initializers::rect2D(filterPass.width, filterPass.height, 0, 0);
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vkCmdSetScissor(drawCmdBuffers[i], 0, 1, &scissor);
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vkCmdBindDescriptorSets(drawCmdBuffers[i], VK_PIPELINE_BIND_POINT_GRAPHICS, pipelineLayouts.bloomFilter, 0, 1, &descriptorSets.bloomFilter, 0, NULL);
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vkCmdBindPipeline(drawCmdBuffers[i], VK_PIPELINE_BIND_POINT_GRAPHICS, pipelines.bloom[1]);
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vkCmdDraw(drawCmdBuffers[i], 3, 1, 0, 0);
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vkCmdEndRenderPass(drawCmdBuffers[i]);
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}
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/*
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Note: Explicit synchronization is not required between the render pass, as this is done implicit via sub pass dependencies
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*/
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/*
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Third render pass: Scene rendering with applied second bloom pass (when enabled)
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*/
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{
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VkClearValue clearValues[2];
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clearValues[0].color = { { 0.0f, 0.0f, 0.0f, 0.0f } };
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clearValues[1].depthStencil = { 1.0f, 0 };
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// Final composition
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VkRenderPassBeginInfo renderPassBeginInfo = vks::initializers::renderPassBeginInfo();
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renderPassBeginInfo.framebuffer = frameBuffers[i];
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renderPassBeginInfo.renderPass = renderPass;
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renderPassBeginInfo.clearValueCount = 2;
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renderPassBeginInfo.renderArea.extent.width = width;
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renderPassBeginInfo.renderArea.extent.height = height;
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renderPassBeginInfo.pClearValues = clearValues;
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vkCmdBeginRenderPass(drawCmdBuffers[i], &renderPassBeginInfo, VK_SUBPASS_CONTENTS_INLINE);
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VkViewport viewport = vks::initializers::viewport((float)width, (float)height, 0.0f, 1.0f);
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vkCmdSetViewport(drawCmdBuffers[i], 0, 1, &viewport);
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VkRect2D scissor = vks::initializers::rect2D(width, height, 0, 0);
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vkCmdSetScissor(drawCmdBuffers[i], 0, 1, &scissor);
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vkCmdBindDescriptorSets(drawCmdBuffers[i], VK_PIPELINE_BIND_POINT_GRAPHICS, pipelineLayouts.composition, 0, 1, &descriptorSets.composition, 0, NULL);
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// Scene
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vkCmdBindPipeline(drawCmdBuffers[i], VK_PIPELINE_BIND_POINT_GRAPHICS, pipelines.composition);
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vkCmdDraw(drawCmdBuffers[i], 3, 1, 0, 0);
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// Bloom
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if (bloom) {
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vkCmdBindPipeline(drawCmdBuffers[i], VK_PIPELINE_BIND_POINT_GRAPHICS, pipelines.bloom[0]);
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vkCmdDraw(drawCmdBuffers[i], 3, 1, 0, 0);
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}
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drawUI(drawCmdBuffers[i]);
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vkCmdEndRenderPass(drawCmdBuffers[i]);
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}
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VK_CHECK_RESULT(vkEndCommandBuffer(drawCmdBuffers[i]));
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}
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}
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void createAttachment(VkFormat format, VkImageUsageFlagBits usage, FrameBufferAttachment *attachment)
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{
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VkImageAspectFlags aspectMask = 0;
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VkImageLayout imageLayout;
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attachment->format = format;
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if (usage & VK_IMAGE_USAGE_COLOR_ATTACHMENT_BIT)
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{
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aspectMask = VK_IMAGE_ASPECT_COLOR_BIT;
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imageLayout = VK_IMAGE_LAYOUT_COLOR_ATTACHMENT_OPTIMAL;
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}
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if (usage & VK_IMAGE_USAGE_DEPTH_STENCIL_ATTACHMENT_BIT)
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{
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aspectMask = VK_IMAGE_ASPECT_DEPTH_BIT | VK_IMAGE_ASPECT_STENCIL_BIT;
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imageLayout = VK_IMAGE_LAYOUT_DEPTH_STENCIL_ATTACHMENT_OPTIMAL;
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}
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assert(aspectMask > 0);
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VkImageCreateInfo image = vks::initializers::imageCreateInfo();
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image.imageType = VK_IMAGE_TYPE_2D;
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image.format = format;
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image.extent.width = offscreen.width;
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image.extent.height = offscreen.height;
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image.extent.depth = 1;
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image.mipLevels = 1;
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image.arrayLayers = 1;
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image.samples = VK_SAMPLE_COUNT_1_BIT;
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image.tiling = VK_IMAGE_TILING_OPTIMAL;
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image.usage = usage | VK_IMAGE_USAGE_SAMPLED_BIT;
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VkMemoryAllocateInfo memAlloc = vks::initializers::memoryAllocateInfo();
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VkMemoryRequirements memReqs;
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VK_CHECK_RESULT(vkCreateImage(device, &image, nullptr, &attachment->image));
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vkGetImageMemoryRequirements(device, attachment->image, &memReqs);
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memAlloc.allocationSize = memReqs.size;
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memAlloc.memoryTypeIndex = vulkanDevice->getMemoryType(memReqs.memoryTypeBits, VK_MEMORY_PROPERTY_DEVICE_LOCAL_BIT);
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VK_CHECK_RESULT(vkAllocateMemory(device, &memAlloc, nullptr, &attachment->mem));
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VK_CHECK_RESULT(vkBindImageMemory(device, attachment->image, attachment->mem, 0));
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VkImageViewCreateInfo imageView = vks::initializers::imageViewCreateInfo();
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imageView.viewType = VK_IMAGE_VIEW_TYPE_2D;
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imageView.format = format;
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imageView.subresourceRange = {};
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imageView.subresourceRange.aspectMask = aspectMask;
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imageView.subresourceRange.baseMipLevel = 0;
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imageView.subresourceRange.levelCount = 1;
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imageView.subresourceRange.baseArrayLayer = 0;
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imageView.subresourceRange.layerCount = 1;
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imageView.image = attachment->image;
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VK_CHECK_RESULT(vkCreateImageView(device, &imageView, nullptr, &attachment->view));
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}
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// Prepare a new framebuffer and attachments for offscreen rendering (G-Buffer)
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void prepareoffscreenfer()
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{
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{
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offscreen.width = width;
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offscreen.height = height;
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// Color attachments
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// Two floating point color buffers
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createAttachment(VK_FORMAT_R32G32B32A32_SFLOAT, VK_IMAGE_USAGE_COLOR_ATTACHMENT_BIT, &offscreen.color[0]);
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createAttachment(VK_FORMAT_R32G32B32A32_SFLOAT, VK_IMAGE_USAGE_COLOR_ATTACHMENT_BIT, &offscreen.color[1]);
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// Depth attachment
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createAttachment(depthFormat, VK_IMAGE_USAGE_DEPTH_STENCIL_ATTACHMENT_BIT, &offscreen.depth);
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// Set up separate renderpass with references to the color and depth attachments
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std::array<VkAttachmentDescription, 3> attachmentDescs = {};
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// Init attachment properties
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for (uint32_t i = 0; i < 3; ++i)
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{
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attachmentDescs[i].samples = VK_SAMPLE_COUNT_1_BIT;
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attachmentDescs[i].loadOp = VK_ATTACHMENT_LOAD_OP_CLEAR;
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attachmentDescs[i].storeOp = VK_ATTACHMENT_STORE_OP_STORE;
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attachmentDescs[i].stencilLoadOp = VK_ATTACHMENT_LOAD_OP_DONT_CARE;
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attachmentDescs[i].stencilStoreOp = VK_ATTACHMENT_STORE_OP_DONT_CARE;
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if (i == 2)
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{
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attachmentDescs[i].initialLayout = VK_IMAGE_LAYOUT_UNDEFINED;
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attachmentDescs[i].finalLayout = VK_IMAGE_LAYOUT_DEPTH_STENCIL_ATTACHMENT_OPTIMAL;
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}
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else
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{
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attachmentDescs[i].initialLayout = VK_IMAGE_LAYOUT_UNDEFINED;
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attachmentDescs[i].finalLayout = VK_IMAGE_LAYOUT_SHADER_READ_ONLY_OPTIMAL;
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}
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}
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// Formats
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attachmentDescs[0].format = offscreen.color[0].format;
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attachmentDescs[1].format = offscreen.color[1].format;
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attachmentDescs[2].format = offscreen.depth.format;
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std::vector<VkAttachmentReference> colorReferences;
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colorReferences.push_back({ 0, VK_IMAGE_LAYOUT_COLOR_ATTACHMENT_OPTIMAL });
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colorReferences.push_back({ 1, VK_IMAGE_LAYOUT_COLOR_ATTACHMENT_OPTIMAL });
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VkAttachmentReference depthReference = {};
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depthReference.attachment = 2;
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depthReference.layout = VK_IMAGE_LAYOUT_DEPTH_STENCIL_ATTACHMENT_OPTIMAL;
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VkSubpassDescription subpass = {};
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subpass.pipelineBindPoint = VK_PIPELINE_BIND_POINT_GRAPHICS;
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subpass.pColorAttachments = colorReferences.data();
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subpass.colorAttachmentCount = 2;
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subpass.pDepthStencilAttachment = &depthReference;
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// Use subpass dependencies for attachment layout transitions
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std::array<VkSubpassDependency, 2> dependencies;
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dependencies[0].srcSubpass = VK_SUBPASS_EXTERNAL;
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dependencies[0].dstSubpass = 0;
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dependencies[0].srcStageMask = VK_PIPELINE_STAGE_BOTTOM_OF_PIPE_BIT;
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dependencies[0].dstStageMask = VK_PIPELINE_STAGE_COLOR_ATTACHMENT_OUTPUT_BIT;
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dependencies[0].srcAccessMask = VK_ACCESS_MEMORY_READ_BIT;
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dependencies[0].dstAccessMask = VK_ACCESS_COLOR_ATTACHMENT_READ_BIT | VK_ACCESS_COLOR_ATTACHMENT_WRITE_BIT;
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dependencies[0].dependencyFlags = VK_DEPENDENCY_BY_REGION_BIT;
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dependencies[1].srcSubpass = 0;
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dependencies[1].dstSubpass = VK_SUBPASS_EXTERNAL;
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dependencies[1].srcStageMask = VK_PIPELINE_STAGE_COLOR_ATTACHMENT_OUTPUT_BIT;
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dependencies[1].dstStageMask = VK_PIPELINE_STAGE_BOTTOM_OF_PIPE_BIT;
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dependencies[1].srcAccessMask = VK_ACCESS_COLOR_ATTACHMENT_READ_BIT | VK_ACCESS_COLOR_ATTACHMENT_WRITE_BIT;
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dependencies[1].dstAccessMask = VK_ACCESS_MEMORY_READ_BIT;
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dependencies[1].dependencyFlags = VK_DEPENDENCY_BY_REGION_BIT;
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VkRenderPassCreateInfo renderPassInfo = {};
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renderPassInfo.sType = VK_STRUCTURE_TYPE_RENDER_PASS_CREATE_INFO;
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renderPassInfo.pAttachments = attachmentDescs.data();
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renderPassInfo.attachmentCount = static_cast<uint32_t>(attachmentDescs.size());
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renderPassInfo.subpassCount = 1;
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renderPassInfo.pSubpasses = &subpass;
|
|
renderPassInfo.dependencyCount = 2;
|
|
renderPassInfo.pDependencies = dependencies.data();
|
|
|
|
VK_CHECK_RESULT(vkCreateRenderPass(device, &renderPassInfo, nullptr, &offscreen.renderPass));
|
|
|
|
std::array<VkImageView, 3> attachments;
|
|
attachments[0] = offscreen.color[0].view;
|
|
attachments[1] = offscreen.color[1].view;
|
|
attachments[2] = offscreen.depth.view;
|
|
|
|
VkFramebufferCreateInfo fbufCreateInfo = {};
|
|
fbufCreateInfo.sType = VK_STRUCTURE_TYPE_FRAMEBUFFER_CREATE_INFO;
|
|
fbufCreateInfo.pNext = NULL;
|
|
fbufCreateInfo.renderPass = offscreen.renderPass;
|
|
fbufCreateInfo.pAttachments = attachments.data();
|
|
fbufCreateInfo.attachmentCount = static_cast<uint32_t>(attachments.size());
|
|
fbufCreateInfo.width = offscreen.width;
|
|
fbufCreateInfo.height = offscreen.height;
|
|
fbufCreateInfo.layers = 1;
|
|
VK_CHECK_RESULT(vkCreateFramebuffer(device, &fbufCreateInfo, nullptr, &offscreen.frameBuffer));
|
|
|
|
// Create sampler to sample from the color attachments
|
|
VkSamplerCreateInfo sampler = vks::initializers::samplerCreateInfo();
|
|
sampler.magFilter = VK_FILTER_NEAREST;
|
|
sampler.minFilter = VK_FILTER_NEAREST;
|
|
sampler.mipmapMode = VK_SAMPLER_MIPMAP_MODE_LINEAR;
|
|
sampler.addressModeU = VK_SAMPLER_ADDRESS_MODE_CLAMP_TO_EDGE;
|
|
sampler.addressModeV = sampler.addressModeU;
|
|
sampler.addressModeW = sampler.addressModeU;
|
|
sampler.mipLodBias = 0.0f;
|
|
sampler.maxAnisotropy = 1.0f;
|
|
sampler.minLod = 0.0f;
|
|
sampler.maxLod = 1.0f;
|
|
sampler.borderColor = VK_BORDER_COLOR_FLOAT_OPAQUE_WHITE;
|
|
VK_CHECK_RESULT(vkCreateSampler(device, &sampler, nullptr, &offscreen.sampler));
|
|
}
|
|
|
|
// Bloom separable filter pass
|
|
{
|
|
filterPass.width = width;
|
|
filterPass.height = height;
|
|
|
|
// Color attachments
|
|
|
|
// Two floating point color buffers
|
|
createAttachment(VK_FORMAT_R32G32B32A32_SFLOAT, VK_IMAGE_USAGE_COLOR_ATTACHMENT_BIT, &filterPass.color[0]);
|
|
|
|
// Set up separate renderpass with references to the color and depth attachments
|
|
std::array<VkAttachmentDescription, 1> attachmentDescs = {};
|
|
|
|
// Init attachment properties
|
|
attachmentDescs[0].samples = VK_SAMPLE_COUNT_1_BIT;
|
|
attachmentDescs[0].loadOp = VK_ATTACHMENT_LOAD_OP_CLEAR;
|
|
attachmentDescs[0].storeOp = VK_ATTACHMENT_STORE_OP_STORE;
|
|
attachmentDescs[0].stencilLoadOp = VK_ATTACHMENT_LOAD_OP_DONT_CARE;
|
|
attachmentDescs[0].stencilStoreOp = VK_ATTACHMENT_STORE_OP_DONT_CARE;
|
|
attachmentDescs[0].initialLayout = VK_IMAGE_LAYOUT_UNDEFINED;
|
|
attachmentDescs[0].finalLayout = VK_IMAGE_LAYOUT_SHADER_READ_ONLY_OPTIMAL;
|
|
attachmentDescs[0].format = filterPass.color[0].format;
|
|
|
|
std::vector<VkAttachmentReference> colorReferences;
|
|
colorReferences.push_back({ 0, VK_IMAGE_LAYOUT_COLOR_ATTACHMENT_OPTIMAL });
|
|
|
|
VkSubpassDescription subpass = {};
|
|
subpass.pipelineBindPoint = VK_PIPELINE_BIND_POINT_GRAPHICS;
|
|
subpass.pColorAttachments = colorReferences.data();
|
|
subpass.colorAttachmentCount = 1;
|
|
|
|
// Use subpass dependencies for attachment layout transitions
|
|
std::array<VkSubpassDependency, 2> dependencies;
|
|
|
|
dependencies[0].srcSubpass = VK_SUBPASS_EXTERNAL;
|
|
dependencies[0].dstSubpass = 0;
|
|
dependencies[0].srcStageMask = VK_PIPELINE_STAGE_BOTTOM_OF_PIPE_BIT;
|
|
dependencies[0].dstStageMask = VK_PIPELINE_STAGE_COLOR_ATTACHMENT_OUTPUT_BIT;
|
|
dependencies[0].srcAccessMask = VK_ACCESS_MEMORY_READ_BIT;
|
|
dependencies[0].dstAccessMask = VK_ACCESS_COLOR_ATTACHMENT_READ_BIT | VK_ACCESS_COLOR_ATTACHMENT_WRITE_BIT;
|
|
dependencies[0].dependencyFlags = VK_DEPENDENCY_BY_REGION_BIT;
|
|
|
|
dependencies[1].srcSubpass = 0;
|
|
dependencies[1].dstSubpass = VK_SUBPASS_EXTERNAL;
|
|
dependencies[1].srcStageMask = VK_PIPELINE_STAGE_COLOR_ATTACHMENT_OUTPUT_BIT;
|
|
dependencies[1].dstStageMask = VK_PIPELINE_STAGE_BOTTOM_OF_PIPE_BIT;
|
|
dependencies[1].srcAccessMask = VK_ACCESS_COLOR_ATTACHMENT_READ_BIT | VK_ACCESS_COLOR_ATTACHMENT_WRITE_BIT;
|
|
dependencies[1].dstAccessMask = VK_ACCESS_MEMORY_READ_BIT;
|
|
dependencies[1].dependencyFlags = VK_DEPENDENCY_BY_REGION_BIT;
|
|
|
|
VkRenderPassCreateInfo renderPassInfo = {};
|
|
renderPassInfo.sType = VK_STRUCTURE_TYPE_RENDER_PASS_CREATE_INFO;
|
|
renderPassInfo.pAttachments = attachmentDescs.data();
|
|
renderPassInfo.attachmentCount = static_cast<uint32_t>(attachmentDescs.size());
|
|
renderPassInfo.subpassCount = 1;
|
|
renderPassInfo.pSubpasses = &subpass;
|
|
renderPassInfo.dependencyCount = 2;
|
|
renderPassInfo.pDependencies = dependencies.data();
|
|
|
|
VK_CHECK_RESULT(vkCreateRenderPass(device, &renderPassInfo, nullptr, &filterPass.renderPass));
|
|
|
|
std::array<VkImageView, 1> attachments;
|
|
attachments[0] = filterPass.color[0].view;
|
|
|
|
VkFramebufferCreateInfo fbufCreateInfo = {};
|
|
fbufCreateInfo.sType = VK_STRUCTURE_TYPE_FRAMEBUFFER_CREATE_INFO;
|
|
fbufCreateInfo.pNext = NULL;
|
|
fbufCreateInfo.renderPass = filterPass.renderPass;
|
|
fbufCreateInfo.pAttachments = attachments.data();
|
|
fbufCreateInfo.attachmentCount = static_cast<uint32_t>(attachments.size());
|
|
fbufCreateInfo.width = filterPass.width;
|
|
fbufCreateInfo.height = filterPass.height;
|
|
fbufCreateInfo.layers = 1;
|
|
VK_CHECK_RESULT(vkCreateFramebuffer(device, &fbufCreateInfo, nullptr, &filterPass.frameBuffer));
|
|
|
|
// Create sampler to sample from the color attachments
|
|
VkSamplerCreateInfo sampler = vks::initializers::samplerCreateInfo();
|
|
sampler.magFilter = VK_FILTER_NEAREST;
|
|
sampler.minFilter = VK_FILTER_NEAREST;
|
|
sampler.mipmapMode = VK_SAMPLER_MIPMAP_MODE_LINEAR;
|
|
sampler.addressModeU = VK_SAMPLER_ADDRESS_MODE_CLAMP_TO_EDGE;
|
|
sampler.addressModeV = sampler.addressModeU;
|
|
sampler.addressModeW = sampler.addressModeU;
|
|
sampler.mipLodBias = 0.0f;
|
|
sampler.maxAnisotropy = 1.0f;
|
|
sampler.minLod = 0.0f;
|
|
sampler.maxLod = 1.0f;
|
|
sampler.borderColor = VK_BORDER_COLOR_FLOAT_OPAQUE_WHITE;
|
|
VK_CHECK_RESULT(vkCreateSampler(device, &sampler, nullptr, &filterPass.sampler));
|
|
}
|
|
}
|
|
|
|
void loadAssets()
|
|
{
|
|
// Load glTF models
|
|
const uint32_t glTFLoadingFlags = vkglTF::FileLoadingFlags::PreTransformVertices | vkglTF::FileLoadingFlags::FlipY;
|
|
models.skybox.loadFromFile(getAssetPath() + "models/cube.gltf", vulkanDevice, queue, glTFLoadingFlags);
|
|
std::vector<std::string> filenames = { "sphere.gltf", "teapot.gltf", "torusknot.gltf", "venus.gltf" };
|
|
objectNames = { "Sphere", "Teapot", "Torusknot", "Venus" };
|
|
models.objects.resize(filenames.size());
|
|
for (size_t i = 0; i < filenames.size(); i++) {
|
|
models.objects[i].loadFromFile(getAssetPath() + "models/" + filenames[i], vulkanDevice, queue, glTFLoadingFlags);
|
|
}
|
|
// Load HDR cube map
|
|
textures.envmap.loadFromFile(getAssetPath() + "textures/hdr/uffizi_cube.ktx", VK_FORMAT_R16G16B16A16_SFLOAT, vulkanDevice, queue);
|
|
}
|
|
|
|
void setupDescriptorPool()
|
|
{
|
|
std::vector<VkDescriptorPoolSize> poolSizes = {
|
|
vks::initializers::descriptorPoolSize(VK_DESCRIPTOR_TYPE_UNIFORM_BUFFER, 4),
|
|
vks::initializers::descriptorPoolSize(VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER, 6)
|
|
};
|
|
uint32_t numDescriptorSets = 4;
|
|
VkDescriptorPoolCreateInfo descriptorPoolInfo =
|
|
vks::initializers::descriptorPoolCreateInfo(static_cast<uint32_t>(poolSizes.size()), poolSizes.data(), numDescriptorSets);
|
|
VK_CHECK_RESULT(vkCreateDescriptorPool(device, &descriptorPoolInfo, nullptr, &descriptorPool));
|
|
}
|
|
|
|
void setupDescriptorSetLayout()
|
|
{
|
|
std::vector<VkDescriptorSetLayoutBinding> setLayoutBindings = {
|
|
vks::initializers::descriptorSetLayoutBinding(VK_DESCRIPTOR_TYPE_UNIFORM_BUFFER, VK_SHADER_STAGE_VERTEX_BIT | VK_SHADER_STAGE_FRAGMENT_BIT, 0),
|
|
vks::initializers::descriptorSetLayoutBinding(VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER, VK_SHADER_STAGE_FRAGMENT_BIT, 1),
|
|
vks::initializers::descriptorSetLayoutBinding(VK_DESCRIPTOR_TYPE_UNIFORM_BUFFER, VK_SHADER_STAGE_FRAGMENT_BIT, 2),
|
|
};
|
|
|
|
VkDescriptorSetLayoutCreateInfo descriptorLayoutInfo =
|
|
vks::initializers::descriptorSetLayoutCreateInfo(setLayoutBindings.data(), static_cast<uint32_t>(setLayoutBindings.size()));
|
|
|
|
VK_CHECK_RESULT(vkCreateDescriptorSetLayout(device, &descriptorLayoutInfo, nullptr, &descriptorSetLayouts.models));
|
|
|
|
VkPipelineLayoutCreateInfo pipelineLayoutCreateInfo =
|
|
vks::initializers::pipelineLayoutCreateInfo(
|
|
&descriptorSetLayouts.models,
|
|
1);
|
|
|
|
VK_CHECK_RESULT(vkCreatePipelineLayout(device, &pipelineLayoutCreateInfo, nullptr, &pipelineLayouts.models));
|
|
|
|
// Bloom filter
|
|
setLayoutBindings = {
|
|
vks::initializers::descriptorSetLayoutBinding(VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER, VK_SHADER_STAGE_FRAGMENT_BIT, 0),
|
|
vks::initializers::descriptorSetLayoutBinding(VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER, VK_SHADER_STAGE_FRAGMENT_BIT, 1),
|
|
};
|
|
|
|
descriptorLayoutInfo = vks::initializers::descriptorSetLayoutCreateInfo(setLayoutBindings.data(), static_cast<uint32_t>(setLayoutBindings.size()));
|
|
VK_CHECK_RESULT(vkCreateDescriptorSetLayout(device, &descriptorLayoutInfo, nullptr, &descriptorSetLayouts.bloomFilter));
|
|
|
|
pipelineLayoutCreateInfo = vks::initializers::pipelineLayoutCreateInfo(&descriptorSetLayouts.bloomFilter, 1);
|
|
VK_CHECK_RESULT(vkCreatePipelineLayout(device, &pipelineLayoutCreateInfo, nullptr, &pipelineLayouts.bloomFilter));
|
|
|
|
// G-Buffer composition
|
|
setLayoutBindings = {
|
|
vks::initializers::descriptorSetLayoutBinding(VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER, VK_SHADER_STAGE_FRAGMENT_BIT, 0),
|
|
vks::initializers::descriptorSetLayoutBinding(VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER, VK_SHADER_STAGE_FRAGMENT_BIT, 1),
|
|
};
|
|
|
|
descriptorLayoutInfo = vks::initializers::descriptorSetLayoutCreateInfo(setLayoutBindings.data(), static_cast<uint32_t>(setLayoutBindings.size()));
|
|
VK_CHECK_RESULT(vkCreateDescriptorSetLayout(device, &descriptorLayoutInfo, nullptr, &descriptorSetLayouts.composition));
|
|
|
|
pipelineLayoutCreateInfo = vks::initializers::pipelineLayoutCreateInfo(&descriptorSetLayouts.composition, 1);
|
|
VK_CHECK_RESULT(vkCreatePipelineLayout(device, &pipelineLayoutCreateInfo, nullptr, &pipelineLayouts.composition));
|
|
}
|
|
|
|
void setupDescriptorSets()
|
|
{
|
|
VkDescriptorSetAllocateInfo allocInfo =
|
|
vks::initializers::descriptorSetAllocateInfo(
|
|
descriptorPool,
|
|
&descriptorSetLayouts.models,
|
|
1);
|
|
|
|
// 3D object descriptor set
|
|
VK_CHECK_RESULT(vkAllocateDescriptorSets(device, &allocInfo, &descriptorSets.object));
|
|
|
|
std::vector<VkWriteDescriptorSet> writeDescriptorSets = {
|
|
vks::initializers::writeDescriptorSet(descriptorSets.object, VK_DESCRIPTOR_TYPE_UNIFORM_BUFFER, 0, &uniformBuffers.matrices.descriptor),
|
|
vks::initializers::writeDescriptorSet(descriptorSets.object, VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER, 1, &textures.envmap.descriptor),
|
|
vks::initializers::writeDescriptorSet(descriptorSets.object, VK_DESCRIPTOR_TYPE_UNIFORM_BUFFER, 2, &uniformBuffers.params.descriptor),
|
|
};
|
|
vkUpdateDescriptorSets(device, static_cast<uint32_t>(writeDescriptorSets.size()), writeDescriptorSets.data(), 0, NULL);
|
|
|
|
// Sky box descriptor set
|
|
VK_CHECK_RESULT(vkAllocateDescriptorSets(device, &allocInfo, &descriptorSets.skybox));
|
|
|
|
writeDescriptorSets = {
|
|
vks::initializers::writeDescriptorSet(descriptorSets.skybox, VK_DESCRIPTOR_TYPE_UNIFORM_BUFFER, 0,&uniformBuffers.matrices.descriptor),
|
|
vks::initializers::writeDescriptorSet(descriptorSets.skybox, VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER, 1, &textures.envmap.descriptor),
|
|
vks::initializers::writeDescriptorSet(descriptorSets.skybox, VK_DESCRIPTOR_TYPE_UNIFORM_BUFFER, 2, &uniformBuffers.params.descriptor),
|
|
};
|
|
vkUpdateDescriptorSets(device, static_cast<uint32_t>(writeDescriptorSets.size()), writeDescriptorSets.data(), 0, NULL);
|
|
|
|
// Bloom filter
|
|
allocInfo = vks::initializers::descriptorSetAllocateInfo(descriptorPool, &descriptorSetLayouts.bloomFilter, 1);
|
|
VK_CHECK_RESULT(vkAllocateDescriptorSets(device, &allocInfo, &descriptorSets.bloomFilter));
|
|
|
|
std::vector<VkDescriptorImageInfo> colorDescriptors = {
|
|
vks::initializers::descriptorImageInfo(offscreen.sampler, offscreen.color[0].view, VK_IMAGE_LAYOUT_SHADER_READ_ONLY_OPTIMAL),
|
|
vks::initializers::descriptorImageInfo(offscreen.sampler, offscreen.color[1].view, VK_IMAGE_LAYOUT_SHADER_READ_ONLY_OPTIMAL),
|
|
};
|
|
|
|
writeDescriptorSets = {
|
|
vks::initializers::writeDescriptorSet(descriptorSets.bloomFilter, VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER, 0, &colorDescriptors[0]),
|
|
vks::initializers::writeDescriptorSet(descriptorSets.bloomFilter, VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER, 1, &colorDescriptors[1]),
|
|
};
|
|
vkUpdateDescriptorSets(device, static_cast<uint32_t>(writeDescriptorSets.size()), writeDescriptorSets.data(), 0, NULL);
|
|
|
|
// Composition descriptor set
|
|
allocInfo = vks::initializers::descriptorSetAllocateInfo(descriptorPool, &descriptorSetLayouts.composition, 1);
|
|
VK_CHECK_RESULT(vkAllocateDescriptorSets(device, &allocInfo, &descriptorSets.composition));
|
|
|
|
colorDescriptors = {
|
|
vks::initializers::descriptorImageInfo(offscreen.sampler, offscreen.color[0].view, VK_IMAGE_LAYOUT_SHADER_READ_ONLY_OPTIMAL),
|
|
vks::initializers::descriptorImageInfo(offscreen.sampler, filterPass.color[0].view, VK_IMAGE_LAYOUT_SHADER_READ_ONLY_OPTIMAL),
|
|
};
|
|
|
|
writeDescriptorSets = {
|
|
vks::initializers::writeDescriptorSet(descriptorSets.composition, VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER, 0, &colorDescriptors[0]),
|
|
vks::initializers::writeDescriptorSet(descriptorSets.composition, VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER, 1, &colorDescriptors[1]),
|
|
};
|
|
vkUpdateDescriptorSets(device, static_cast<uint32_t>(writeDescriptorSets.size()), writeDescriptorSets.data(), 0, NULL);
|
|
}
|
|
|
|
void preparePipelines()
|
|
{
|
|
VkPipelineInputAssemblyStateCreateInfo inputAssemblyState = vks::initializers::pipelineInputAssemblyStateCreateInfo(VK_PRIMITIVE_TOPOLOGY_TRIANGLE_LIST, 0, VK_FALSE);
|
|
VkPipelineRasterizationStateCreateInfo rasterizationState = vks::initializers::pipelineRasterizationStateCreateInfo(VK_POLYGON_MODE_FILL, VK_CULL_MODE_BACK_BIT, VK_FRONT_FACE_COUNTER_CLOCKWISE, 0);
|
|
VkPipelineColorBlendAttachmentState blendAttachmentState = vks::initializers::pipelineColorBlendAttachmentState(0xf, VK_FALSE);
|
|
VkPipelineColorBlendStateCreateInfo colorBlendState = vks::initializers::pipelineColorBlendStateCreateInfo(1, &blendAttachmentState);
|
|
VkPipelineDepthStencilStateCreateInfo depthStencilState = vks::initializers::pipelineDepthStencilStateCreateInfo(VK_FALSE, VK_FALSE, VK_COMPARE_OP_LESS_OR_EQUAL);
|
|
VkPipelineViewportStateCreateInfo viewportState = vks::initializers::pipelineViewportStateCreateInfo(1, 1, 0);
|
|
VkPipelineMultisampleStateCreateInfo multisampleState = vks::initializers::pipelineMultisampleStateCreateInfo(VK_SAMPLE_COUNT_1_BIT, 0);
|
|
std::vector<VkDynamicState> dynamicStateEnables = { VK_DYNAMIC_STATE_VIEWPORT, VK_DYNAMIC_STATE_SCISSOR };
|
|
VkPipelineDynamicStateCreateInfo dynamicState = vks::initializers::pipelineDynamicStateCreateInfo(dynamicStateEnables);
|
|
std::array<VkPipelineShaderStageCreateInfo, 2> shaderStages;
|
|
|
|
VkGraphicsPipelineCreateInfo pipelineCI = vks::initializers::pipelineCreateInfo(pipelineLayouts.models, renderPass, 0);
|
|
pipelineCI.pInputAssemblyState = &inputAssemblyState;
|
|
pipelineCI.pRasterizationState = &rasterizationState;
|
|
pipelineCI.pColorBlendState = &colorBlendState;
|
|
pipelineCI.pMultisampleState = &multisampleState;
|
|
pipelineCI.pViewportState = &viewportState;
|
|
pipelineCI.pDepthStencilState = &depthStencilState;
|
|
pipelineCI.pDynamicState = &dynamicState;
|
|
pipelineCI.stageCount = static_cast<uint32_t>(shaderStages.size());
|
|
pipelineCI.pStages = shaderStages.data();
|
|
|
|
VkSpecializationInfo specializationInfo;
|
|
std::array<VkSpecializationMapEntry, 1> specializationMapEntries;
|
|
|
|
// Full screen pipelines
|
|
|
|
// Empty vertex input state, full screen triangles are generated by the vertex shader
|
|
VkPipelineVertexInputStateCreateInfo emptyInputState = vks::initializers::pipelineVertexInputStateCreateInfo();
|
|
pipelineCI.pVertexInputState = &emptyInputState;
|
|
|
|
// Final fullscreen composition pass pipeline
|
|
std::vector<VkPipelineColorBlendAttachmentState> blendAttachmentStates = {
|
|
vks::initializers::pipelineColorBlendAttachmentState(0xf, VK_FALSE),
|
|
vks::initializers::pipelineColorBlendAttachmentState(0xf, VK_FALSE),
|
|
};
|
|
pipelineCI.layout = pipelineLayouts.composition;
|
|
pipelineCI.renderPass = renderPass;
|
|
rasterizationState.cullMode = VK_CULL_MODE_NONE;
|
|
colorBlendState.attachmentCount = 1;
|
|
colorBlendState.pAttachments = blendAttachmentStates.data();
|
|
shaderStages[0] = loadShader(getShadersPath() + "hdr/composition.vert.spv", VK_SHADER_STAGE_VERTEX_BIT);
|
|
shaderStages[1] = loadShader(getShadersPath() + "hdr/composition.frag.spv", VK_SHADER_STAGE_FRAGMENT_BIT);
|
|
VK_CHECK_RESULT(vkCreateGraphicsPipelines(device, pipelineCache, 1, &pipelineCI, nullptr, &pipelines.composition));
|
|
|
|
// Bloom pass
|
|
shaderStages[0] = loadShader(getShadersPath() + "hdr/bloom.vert.spv", VK_SHADER_STAGE_VERTEX_BIT);
|
|
shaderStages[1] = loadShader(getShadersPath() + "hdr/bloom.frag.spv", VK_SHADER_STAGE_FRAGMENT_BIT);
|
|
colorBlendState.pAttachments = &blendAttachmentState;
|
|
blendAttachmentState.colorWriteMask = 0xF;
|
|
blendAttachmentState.blendEnable = VK_TRUE;
|
|
blendAttachmentState.colorBlendOp = VK_BLEND_OP_ADD;
|
|
blendAttachmentState.srcColorBlendFactor = VK_BLEND_FACTOR_ONE;
|
|
blendAttachmentState.dstColorBlendFactor = VK_BLEND_FACTOR_ONE;
|
|
blendAttachmentState.alphaBlendOp = VK_BLEND_OP_ADD;
|
|
blendAttachmentState.srcAlphaBlendFactor = VK_BLEND_FACTOR_SRC_ALPHA;
|
|
blendAttachmentState.dstAlphaBlendFactor = VK_BLEND_FACTOR_DST_ALPHA;
|
|
|
|
// Set constant parameters via specialization constants
|
|
specializationMapEntries[0] = vks::initializers::specializationMapEntry(0, 0, sizeof(uint32_t));
|
|
uint32_t dir = 1;
|
|
specializationInfo = vks::initializers::specializationInfo(1, specializationMapEntries.data(), sizeof(dir), &dir);
|
|
shaderStages[1].pSpecializationInfo = &specializationInfo;
|
|
VK_CHECK_RESULT(vkCreateGraphicsPipelines(device, pipelineCache, 1, &pipelineCI, nullptr, &pipelines.bloom[0]));
|
|
|
|
// Second blur pass (into separate framebuffer)
|
|
pipelineCI.renderPass = filterPass.renderPass;
|
|
dir = 0;
|
|
VK_CHECK_RESULT(vkCreateGraphicsPipelines(device, pipelineCache, 1, &pipelineCI, nullptr, &pipelines.bloom[1]));
|
|
|
|
// Object rendering pipelines
|
|
// Use vertex input state from glTF model setup
|
|
pipelineCI.pVertexInputState = vkglTF::Vertex::getPipelineVertexInputState({ vkglTF::VertexComponent::Position, vkglTF::VertexComponent::Normal });
|
|
|
|
blendAttachmentState.blendEnable = VK_FALSE;
|
|
pipelineCI.layout = pipelineLayouts.models;
|
|
pipelineCI.renderPass = offscreen.renderPass;
|
|
colorBlendState.attachmentCount = 2;
|
|
colorBlendState.pAttachments = blendAttachmentStates.data();
|
|
shaderStages[0] = loadShader(getShadersPath() + "hdr/gbuffer.vert.spv", VK_SHADER_STAGE_VERTEX_BIT);
|
|
shaderStages[1] = loadShader(getShadersPath() + "hdr/gbuffer.frag.spv", VK_SHADER_STAGE_FRAGMENT_BIT);
|
|
// Set constant parameters via specialization constants
|
|
specializationMapEntries[0] = vks::initializers::specializationMapEntry(0, 0, sizeof(uint32_t));
|
|
uint32_t shadertype = 0;
|
|
specializationInfo = vks::initializers::specializationInfo(1, specializationMapEntries.data(), sizeof(shadertype), &shadertype);
|
|
shaderStages[0].pSpecializationInfo = &specializationInfo;
|
|
shaderStages[1].pSpecializationInfo = &specializationInfo;
|
|
// Skybox pipeline (background cube)
|
|
rasterizationState.cullMode = VK_CULL_MODE_FRONT_BIT;
|
|
VK_CHECK_RESULT(vkCreateGraphicsPipelines(device, pipelineCache, 1, &pipelineCI, nullptr, &pipelines.skybox));
|
|
|
|
// Object rendering pipeline
|
|
shadertype = 1;
|
|
// Enable depth test and write
|
|
depthStencilState.depthWriteEnable = VK_TRUE;
|
|
depthStencilState.depthTestEnable = VK_TRUE;
|
|
// Flip cull mode
|
|
rasterizationState.cullMode = VK_CULL_MODE_BACK_BIT;
|
|
VK_CHECK_RESULT(vkCreateGraphicsPipelines(device, pipelineCache, 1, &pipelineCI, nullptr, &pipelines.reflect));
|
|
}
|
|
|
|
// Prepare and initialize uniform buffer containing shader uniforms
|
|
void prepareUniformBuffers()
|
|
{
|
|
// Matrices vertex shader uniform buffer
|
|
VK_CHECK_RESULT(vulkanDevice->createBuffer(
|
|
VK_BUFFER_USAGE_UNIFORM_BUFFER_BIT,
|
|
VK_MEMORY_PROPERTY_HOST_VISIBLE_BIT | VK_MEMORY_PROPERTY_HOST_COHERENT_BIT,
|
|
&uniformBuffers.matrices,
|
|
sizeof(uboVS)));
|
|
|
|
// Params
|
|
VK_CHECK_RESULT(vulkanDevice->createBuffer(
|
|
VK_BUFFER_USAGE_UNIFORM_BUFFER_BIT,
|
|
VK_MEMORY_PROPERTY_HOST_VISIBLE_BIT | VK_MEMORY_PROPERTY_HOST_COHERENT_BIT,
|
|
&uniformBuffers.params,
|
|
sizeof(uboParams)));
|
|
|
|
// Map persistent
|
|
VK_CHECK_RESULT(uniformBuffers.matrices.map());
|
|
VK_CHECK_RESULT(uniformBuffers.params.map());
|
|
|
|
updateUniformBuffers();
|
|
updateParams();
|
|
}
|
|
|
|
void updateUniformBuffers()
|
|
{
|
|
uboVS.projection = camera.matrices.perspective;
|
|
uboVS.modelview = camera.matrices.view;
|
|
uboVS.inverseModelview = glm::inverse(camera.matrices.view);
|
|
memcpy(uniformBuffers.matrices.mapped, &uboVS, sizeof(uboVS));
|
|
}
|
|
|
|
void updateParams()
|
|
{
|
|
memcpy(uniformBuffers.params.mapped, &uboParams, sizeof(uboParams));
|
|
}
|
|
|
|
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();
|
|
prepareoffscreenfer();
|
|
setupDescriptorSetLayout();
|
|
preparePipelines();
|
|
setupDescriptorPool();
|
|
setupDescriptorSets();
|
|
buildCommandBuffers();
|
|
prepared = true;
|
|
}
|
|
|
|
virtual void render()
|
|
{
|
|
if (!prepared)
|
|
return;
|
|
draw();
|
|
if (camera.updated)
|
|
updateUniformBuffers();
|
|
}
|
|
|
|
virtual void OnUpdateUIOverlay(vks::UIOverlay *overlay)
|
|
{
|
|
if (overlay->header("Settings")) {
|
|
if (overlay->comboBox("Object type", &models.objectIndex, objectNames)) {
|
|
updateUniformBuffers();
|
|
buildCommandBuffers();
|
|
}
|
|
if (overlay->inputFloat("Exposure", &uboParams.exposure, 0.025f, 3)) {
|
|
updateParams();
|
|
}
|
|
if (overlay->checkBox("Bloom", &bloom)) {
|
|
buildCommandBuffers();
|
|
}
|
|
if (overlay->checkBox("Skybox", &displaySkybox)) {
|
|
buildCommandBuffers();
|
|
}
|
|
}
|
|
}
|
|
};
|
|
|
|
VULKAN_EXAMPLE_MAIN()
|