Fold layout transitions into subpass (Refs #155), refactoring of offscreen render pass
This commit is contained in:
saschawillems
parent
7918e0c435
commit
cb5bd093ec
6 changed files with 188 additions and 331 deletions
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@ -10,7 +10,6 @@ layout (binding = 0) uniform UBO
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{
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mat4 projection;
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mat4 model;
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vec4 glowColor;
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} ubo;
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layout (location = 0) out vec3 outColor;
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@ -22,8 +21,6 @@ out gl_PerVertex
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void main()
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{
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{
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outColor = inColor;
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}
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outColor = inColor;
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gl_Position = ubo.projection * ubo.model * inPos;
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}
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Binary file not shown.
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@ -7,8 +7,6 @@ layout (binding = 1) uniform sampler2D samplerColor;
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layout (binding = 2) uniform UBO
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{
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int texWidth;
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int texHeight;
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float radialBlurScale;
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float radialBlurStrength;
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vec2 radialOrigin;
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@ -20,7 +18,8 @@ layout (location = 0) out vec4 outFragColor;
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void main()
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{
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vec2 radialSize = vec2(1.0 / ubo.texWidth, 1.0 / ubo.texHeight);
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ivec2 texDim = textureSize(samplerColor, 0);
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vec2 radialSize = vec2(1.0 / texDim.s, 1.0 / texDim.t);
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vec2 UV = inUV;
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Binary file not shown.
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@ -356,10 +356,12 @@ public:
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{
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offscreenPass.commandBuffer = VulkanExampleBase::createCommandBuffer(VK_COMMAND_BUFFER_LEVEL_PRIMARY, false);
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}
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// Create a semaphore used to synchronize offscreen rendering and usage
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VkSemaphoreCreateInfo semaphoreCreateInfo = vkTools::initializers::semaphoreCreateInfo();
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VK_CHECK_RESULT(vkCreateSemaphore(device, &semaphoreCreateInfo, nullptr, &offscreenPass.semaphore));
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if (offscreenPass.semaphore == VK_NULL_HANDLE)
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{
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// Create a semaphore used to synchronize offscreen rendering and usage
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VkSemaphoreCreateInfo semaphoreCreateInfo = vkTools::initializers::semaphoreCreateInfo();
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VK_CHECK_RESULT(vkCreateSemaphore(device, &semaphoreCreateInfo, nullptr, &offscreenPass.semaphore));
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}
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VkCommandBufferBeginInfo cmdBufInfo = vkTools::initializers::commandBufferBeginInfo();
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@ -805,7 +807,6 @@ public:
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VK_CHECK_RESULT(vkCreateGraphicsPipelines(device, pipelineCache, 1, &pipelineCreateInfo, nullptr, &pipelines.shaded));
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// Offscreen
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// Flip culling
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rasterizationState.cullMode = VK_CULL_MODE_FRONT_BIT;
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pipelineCreateInfo.renderPass = offscreenPass.renderPass;
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VK_CHECK_RESULT(vkCreateGraphicsPipelines(device, pipelineCache, 1, &pipelineCreateInfo, nullptr, &pipelines.shadedOffscreen));
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@ -23,13 +23,8 @@
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#define VERTEX_BUFFER_BIND_ID 0
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#define ENABLE_VALIDATION false
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// Texture properties
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#define TEX_DIM 128
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#define TEX_FORMAT VK_FORMAT_R8G8B8A8_UNORM
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#define TEX_FILTER VK_FILTER_LINEAR;
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// Offscreen frame buffer properties
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#define FB_DIM TEX_DIM
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#define FB_DIM 512
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#define FB_COLOR_FORMAT VK_FORMAT_R8G8B8A8_UNORM
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// Vertex layout for this example
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@ -75,8 +70,6 @@ public:
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} uboQuadVS;
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struct {
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int32_t texWidth = TEX_DIM;
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int32_t texHeight = TEX_DIM;
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float radialBlurScale = 0.25f;
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float radialBlurStrength = 0.75f;
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glm::vec2 radialOrigin = glm::vec2(0.5f, 0.5f);
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@ -109,21 +102,21 @@ public:
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VkDeviceMemory mem;
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VkImageView view;
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};
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struct FrameBuffer {
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struct OffscreenPass {
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int32_t width, height;
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VkFramebuffer frameBuffer;
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VkFramebuffer frameBuffer;
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FrameBufferAttachment color, depth;
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VkSampler colorSampler;
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} offScreenFrameBuf;
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VkCommandBuffer offScreenCmdBuffer = VK_NULL_HANDLE;
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// Semaphore used to synchronize between offscreen and final scene rendering
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VkSemaphore offscreenSemaphore = VK_NULL_HANDLE;
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VkRenderPass renderPass;
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VkSampler sampler;
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VkDescriptorImageInfo descriptor;
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VkCommandBuffer commandBuffer = VK_NULL_HANDLE;
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// Semaphore used to synchronize between offscreen and final scene render pass
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VkSemaphore semaphore = VK_NULL_HANDLE;
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} offscreenPass;
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VulkanExample() : VulkanExampleBase(ENABLE_VALIDATION)
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{
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zoom = -12.0f;
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zoom = -10.0f;
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rotation = { -16.25f, -28.75f, 0.0f };
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timerSpeed *= 0.5f;
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enableTextOverlay = true;
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@ -136,19 +129,20 @@ public:
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// Note : Inherited destructor cleans up resources stored in base class
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// Frame buffer
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vkDestroySampler(device, offScreenFrameBuf.colorSampler, nullptr);
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// Color attachment
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vkDestroyImageView(device, offScreenFrameBuf.color.view, nullptr);
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vkDestroyImage(device, offScreenFrameBuf.color.image, nullptr);
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vkFreeMemory(device, offScreenFrameBuf.color.mem, nullptr);
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vkDestroyImageView(device, offscreenPass.color.view, nullptr);
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vkDestroyImage(device, offscreenPass.color.image, nullptr);
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vkFreeMemory(device, offscreenPass.color.mem, nullptr);
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// Depth attachment
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vkDestroyImageView(device, offScreenFrameBuf.depth.view, nullptr);
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vkDestroyImage(device, offScreenFrameBuf.depth.image, nullptr);
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vkFreeMemory(device, offScreenFrameBuf.depth.mem, nullptr);
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vkDestroyImageView(device, offscreenPass.depth.view, nullptr);
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vkDestroyImage(device, offscreenPass.depth.image, nullptr);
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vkFreeMemory(device, offscreenPass.depth.mem, nullptr);
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vkDestroyFramebuffer(device, offScreenFrameBuf.frameBuffer, nullptr);
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vkDestroyRenderPass(device, offscreenPass.renderPass, nullptr);
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vkDestroySampler(device, offscreenPass.sampler, nullptr);
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vkDestroyFramebuffer(device, offscreenPass.frameBuffer, nullptr);
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vkDestroyPipeline(device, pipelines.radialBlur, nullptr);
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vkDestroyPipeline(device, pipelines.phongPass, nullptr);
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@ -169,98 +163,16 @@ public:
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vkTools::destroyUniformData(device, &uniformData.vsQuad);
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vkTools::destroyUniformData(device, &uniformData.fsQuad);
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vkFreeCommandBuffers(device, cmdPool, 1, &offScreenCmdBuffer);
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vkDestroySemaphore(device, offscreenSemaphore, nullptr);
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}
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// Preapre an empty texture as the blit target from
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// the offscreen framebuffer
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void prepareTextureTarget(vkTools::VulkanTexture *tex, uint32_t width, uint32_t height, VkFormat format)
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{
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VkCommandBuffer cmdBuffer = VulkanExampleBase::createCommandBuffer(VK_COMMAND_BUFFER_LEVEL_PRIMARY, true);
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VkFormatProperties formatProperties;
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// Get device properites for the requested texture format
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vkGetPhysicalDeviceFormatProperties(physicalDevice, format, &formatProperties);
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// Check if blit destination is supported for the requested format
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// Only try for optimal tiling, linear tiling usually won't support blit as destination anyway
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assert(formatProperties.optimalTilingFeatures & VK_FORMAT_FEATURE_BLIT_DST_BIT);
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// Prepare blit target texture
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tex->width = width;
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tex->height = height;
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VkImageCreateInfo imageCreateInfo = vkTools::initializers::imageCreateInfo();
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imageCreateInfo.imageType = VK_IMAGE_TYPE_2D;
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imageCreateInfo.format = format;
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imageCreateInfo.extent = { width, height, 1 };
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imageCreateInfo.mipLevels = 1;
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imageCreateInfo.arrayLayers = 1;
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imageCreateInfo.samples = VK_SAMPLE_COUNT_1_BIT;
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imageCreateInfo.tiling = VK_IMAGE_TILING_OPTIMAL;
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imageCreateInfo.sharingMode = VK_SHARING_MODE_EXCLUSIVE;
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imageCreateInfo.initialLayout = VK_IMAGE_LAYOUT_UNDEFINED;
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// Texture will be sampled in a shader and is also the blit destination
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imageCreateInfo.usage = VK_IMAGE_USAGE_SAMPLED_BIT | VK_IMAGE_USAGE_TRANSFER_DST_BIT;
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VkMemoryAllocateInfo memAllocInfo = vkTools::initializers::memoryAllocateInfo();
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VkMemoryRequirements memReqs;
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VK_CHECK_RESULT(vkCreateImage(device, &imageCreateInfo, nullptr, &tex->image));
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vkGetImageMemoryRequirements(device, tex->image, &memReqs);
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memAllocInfo.allocationSize = memReqs.size;
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memAllocInfo.memoryTypeIndex = vulkanDevice->getMemoryType(memReqs.memoryTypeBits, VK_MEMORY_PROPERTY_DEVICE_LOCAL_BIT);
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VK_CHECK_RESULT(vkAllocateMemory(device, &memAllocInfo, nullptr, &(tex->deviceMemory)));
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VK_CHECK_RESULT(vkBindImageMemory(device, tex->image, tex->deviceMemory, 0));
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// Transform image layout to transfer destination
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tex->imageLayout = VK_IMAGE_LAYOUT_SHADER_READ_ONLY_OPTIMAL;
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vkTools::setImageLayout(
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cmdBuffer,
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tex->image,
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VK_IMAGE_ASPECT_COLOR_BIT,
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VK_IMAGE_LAYOUT_UNDEFINED,
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tex->imageLayout);
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// Create sampler
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VkSamplerCreateInfo sampler = vkTools::initializers::samplerCreateInfo();
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sampler.magFilter = TEX_FILTER;
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sampler.minFilter = TEX_FILTER;
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sampler.mipmapMode = VK_SAMPLER_MIPMAP_MODE_LINEAR;
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sampler.addressModeU = VK_SAMPLER_ADDRESS_MODE_CLAMP_TO_EDGE;
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sampler.addressModeV = sampler.addressModeU;
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sampler.addressModeW = sampler.addressModeU;
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sampler.mipLodBias = 0.0f;
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sampler.maxAnisotropy = 0;
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sampler.compareOp = VK_COMPARE_OP_NEVER;
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sampler.minLod = 0.0f;
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sampler.maxLod = 0.0f;
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sampler.borderColor = VK_BORDER_COLOR_FLOAT_OPAQUE_WHITE;
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VK_CHECK_RESULT(vkCreateSampler(device, &sampler, nullptr, &tex->sampler));
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// Create image view
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VkImageViewCreateInfo view = vkTools::initializers::imageViewCreateInfo();
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view.image = VK_NULL_HANDLE;
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view.viewType = VK_IMAGE_VIEW_TYPE_2D;
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view.format = format;
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view.components = { VK_COMPONENT_SWIZZLE_R, VK_COMPONENT_SWIZZLE_G, VK_COMPONENT_SWIZZLE_B, VK_COMPONENT_SWIZZLE_A };
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view.subresourceRange = { VK_IMAGE_ASPECT_COLOR_BIT, 0, 1, 0, 1 };
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view.image = tex->image;
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VK_CHECK_RESULT(vkCreateImageView(device, &view, nullptr, &tex->view));
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VulkanExampleBase::flushCommandBuffer(cmdBuffer, queue, true);
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vkFreeCommandBuffers(device, cmdPool, 1, &offscreenPass.commandBuffer);
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vkDestroySemaphore(device, offscreenPass.semaphore, nullptr);
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}
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// Setup the offscreen framebuffer for rendering the blurred scene
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// The color attachment of this framebuffer will then be used
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// to sample frame in the fragment shader of the final pass
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void prepareOffscreenFramebuffer()
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// The color attachment of this framebuffer will then be used to sample frame in the fragment shader of the final pass
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void prepareOffscreen()
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{
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offScreenFrameBuf.width = FB_DIM;
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offScreenFrameBuf.height = FB_DIM;
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VkFormat fbColorFormat = FB_COLOR_FORMAT;
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offscreenPass.width = FB_DIM;
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offscreenPass.height = FB_DIM;
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// Find a suitable depth format
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VkFormat fbDepthFormat;
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@ -270,9 +182,9 @@ public:
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// Color attachment
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VkImageCreateInfo image = vkTools::initializers::imageCreateInfo();
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image.imageType = VK_IMAGE_TYPE_2D;
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image.format = fbColorFormat;
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image.extent.width = offScreenFrameBuf.width;
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image.extent.height = offScreenFrameBuf.height;
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image.format = FB_COLOR_FORMAT;
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image.extent.width = offscreenPass.width;
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image.extent.height = offscreenPass.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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@ -284,58 +196,51 @@ public:
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VkMemoryAllocateInfo memAlloc = vkTools::initializers::memoryAllocateInfo();
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VkMemoryRequirements memReqs;
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VK_CHECK_RESULT(vkCreateImage(device, &image, nullptr, &offscreenPass.color.image));
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vkGetImageMemoryRequirements(device, offscreenPass.color.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, &offscreenPass.color.mem));
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VK_CHECK_RESULT(vkBindImageMemory(device, offscreenPass.color.image, offscreenPass.color.mem, 0));
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VkImageViewCreateInfo colorImageView = vkTools::initializers::imageViewCreateInfo();
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colorImageView.viewType = VK_IMAGE_VIEW_TYPE_2D;
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colorImageView.format = fbColorFormat;
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colorImageView.format = FB_COLOR_FORMAT;
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colorImageView.subresourceRange = {};
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colorImageView.subresourceRange.aspectMask = VK_IMAGE_ASPECT_COLOR_BIT;
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colorImageView.subresourceRange.baseMipLevel = 0;
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colorImageView.subresourceRange.levelCount = 1;
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colorImageView.subresourceRange.baseArrayLayer = 0;
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colorImageView.subresourceRange.layerCount = 1;
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colorImageView.image = offscreenPass.color.image;
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VK_CHECK_RESULT(vkCreateImageView(device, &colorImageView, nullptr, &offscreenPass.color.view));
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VK_CHECK_RESULT(vkCreateImage(device, &image, nullptr, &offScreenFrameBuf.color.image));
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vkGetImageMemoryRequirements(device, offScreenFrameBuf.color.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, &offScreenFrameBuf.color.mem));
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VK_CHECK_RESULT(vkBindImageMemory(device, offScreenFrameBuf.color.image, offScreenFrameBuf.color.mem, 0));
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// Get a primary command buffer for submitting image layout transitions for the framebuffer attachments
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VkCommandBuffer layoutCmd = VulkanExampleBase::createCommandBuffer(VK_COMMAND_BUFFER_LEVEL_PRIMARY, true);
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// Set the initial layout to shader read instead of attachment
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// This is done as the render loop does the actualy image layout transitions
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vkTools::setImageLayout(
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layoutCmd,
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offScreenFrameBuf.color.image,
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VK_IMAGE_ASPECT_COLOR_BIT,
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VK_IMAGE_LAYOUT_UNDEFINED,
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VK_IMAGE_LAYOUT_SHADER_READ_ONLY_OPTIMAL);
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colorImageView.image = offScreenFrameBuf.color.image;
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VK_CHECK_RESULT(vkCreateImageView(device, &colorImageView, nullptr, &offScreenFrameBuf.color.view));
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// Create sampler to sample from to collor attachment
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// Used to sample in the fragment shader for final rendering
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VkSamplerCreateInfo sampler = vkTools::initializers::samplerCreateInfo();
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sampler.magFilter = VK_FILTER_LINEAR;
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sampler.minFilter = VK_FILTER_LINEAR;
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sampler.mipmapMode = VK_SAMPLER_MIPMAP_MODE_LINEAR;
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sampler.addressModeU = VK_SAMPLER_ADDRESS_MODE_CLAMP_TO_EDGE;
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sampler.addressModeV = sampler.addressModeU;
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sampler.addressModeW = sampler.addressModeU;
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sampler.mipLodBias = 0.0f;
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sampler.maxAnisotropy = 0;
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sampler.minLod = 0.0f;
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sampler.maxLod = 1.0f;
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sampler.borderColor = VK_BORDER_COLOR_FLOAT_OPAQUE_WHITE;
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VK_CHECK_RESULT(vkCreateSampler(device, &sampler, nullptr, &offScreenFrameBuf.colorSampler));
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// Create sampler to sample from the attachment in the fragment shader
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VkSamplerCreateInfo samplerInfo = vkTools::initializers::samplerCreateInfo();
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samplerInfo.magFilter = VK_FILTER_LINEAR;
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samplerInfo.minFilter = VK_FILTER_LINEAR;
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samplerInfo.mipmapMode = VK_SAMPLER_MIPMAP_MODE_LINEAR;
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samplerInfo.addressModeU = VK_SAMPLER_ADDRESS_MODE_CLAMP_TO_EDGE;
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samplerInfo.addressModeV = samplerInfo.addressModeU;
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samplerInfo.addressModeW = samplerInfo.addressModeU;
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samplerInfo.mipLodBias = 0.0f;
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samplerInfo.maxAnisotropy = 0;
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samplerInfo.minLod = 0.0f;
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samplerInfo.maxLod = 1.0f;
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samplerInfo.borderColor = VK_BORDER_COLOR_FLOAT_OPAQUE_WHITE;
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VK_CHECK_RESULT(vkCreateSampler(device, &samplerInfo, nullptr, &offscreenPass.sampler));
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// Depth stencil attachment
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image.format = fbDepthFormat;
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image.usage = VK_IMAGE_USAGE_DEPTH_STENCIL_ATTACHMENT_BIT;
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VK_CHECK_RESULT(vkCreateImage(device, &image, nullptr, &offscreenPass.depth.image));
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vkGetImageMemoryRequirements(device, offscreenPass.depth.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, &offscreenPass.depth.mem));
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VK_CHECK_RESULT(vkBindImageMemory(device, offscreenPass.depth.image, offscreenPass.depth.mem, 0));
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VkImageViewCreateInfo depthStencilView = vkTools::initializers::imageViewCreateInfo();
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depthStencilView.viewType = VK_IMAGE_VIEW_TYPE_2D;
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depthStencilView.format = fbDepthFormat;
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@ -346,52 +251,103 @@ public:
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depthStencilView.subresourceRange.levelCount = 1;
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depthStencilView.subresourceRange.baseArrayLayer = 0;
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depthStencilView.subresourceRange.layerCount = 1;
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depthStencilView.image = offscreenPass.depth.image;
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VK_CHECK_RESULT(vkCreateImageView(device, &depthStencilView, nullptr, &offscreenPass.depth.view));
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VK_CHECK_RESULT(vkCreateImage(device, &image, nullptr, &offScreenFrameBuf.depth.image));
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vkGetImageMemoryRequirements(device, offScreenFrameBuf.depth.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, &offScreenFrameBuf.depth.mem));
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VK_CHECK_RESULT(vkBindImageMemory(device, offScreenFrameBuf.depth.image, offScreenFrameBuf.depth.mem, 0));
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// Create a separate render pass for the offscreen rendering as it may differ from the one used for scene rendering
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||||
|
||||
vkTools::setImageLayout(
|
||||
layoutCmd,
|
||||
offScreenFrameBuf.depth.image,
|
||||
VK_IMAGE_ASPECT_DEPTH_BIT | VK_IMAGE_ASPECT_STENCIL_BIT,
|
||||
VK_IMAGE_LAYOUT_UNDEFINED,
|
||||
VK_IMAGE_LAYOUT_DEPTH_STENCIL_ATTACHMENT_OPTIMAL);
|
||||
std::array<VkAttachmentDescription, 2> attchmentDescriptions = {};
|
||||
// Color attachment
|
||||
attchmentDescriptions[0].format = FB_COLOR_FORMAT;
|
||||
attchmentDescriptions[0].samples = VK_SAMPLE_COUNT_1_BIT;
|
||||
attchmentDescriptions[0].loadOp = VK_ATTACHMENT_LOAD_OP_CLEAR;
|
||||
attchmentDescriptions[0].storeOp = VK_ATTACHMENT_STORE_OP_STORE;
|
||||
attchmentDescriptions[0].stencilLoadOp = VK_ATTACHMENT_LOAD_OP_DONT_CARE;
|
||||
attchmentDescriptions[0].stencilStoreOp = VK_ATTACHMENT_STORE_OP_DONT_CARE;
|
||||
attchmentDescriptions[0].initialLayout = VK_IMAGE_LAYOUT_UNDEFINED;
|
||||
attchmentDescriptions[0].finalLayout = VK_IMAGE_LAYOUT_SHADER_READ_ONLY_OPTIMAL;
|
||||
// Depth attachment
|
||||
attchmentDescriptions[1].format = fbDepthFormat;
|
||||
attchmentDescriptions[1].samples = VK_SAMPLE_COUNT_1_BIT;
|
||||
attchmentDescriptions[1].loadOp = VK_ATTACHMENT_LOAD_OP_CLEAR;
|
||||
attchmentDescriptions[1].storeOp = VK_ATTACHMENT_STORE_OP_DONT_CARE;
|
||||
attchmentDescriptions[1].stencilLoadOp = VK_ATTACHMENT_LOAD_OP_DONT_CARE;
|
||||
attchmentDescriptions[1].stencilStoreOp = VK_ATTACHMENT_STORE_OP_DONT_CARE;
|
||||
attchmentDescriptions[1].initialLayout = VK_IMAGE_LAYOUT_UNDEFINED;
|
||||
attchmentDescriptions[1].finalLayout = VK_IMAGE_LAYOUT_DEPTH_STENCIL_ATTACHMENT_OPTIMAL;
|
||||
|
||||
// Submit the command buffer to apply the image memory barrier
|
||||
VulkanExampleBase::flushCommandBuffer(layoutCmd, queue, true);
|
||||
VkAttachmentReference colorReference = { 0, VK_IMAGE_LAYOUT_COLOR_ATTACHMENT_OPTIMAL };
|
||||
VkAttachmentReference depthReference = { 1, VK_IMAGE_LAYOUT_DEPTH_STENCIL_ATTACHMENT_OPTIMAL };
|
||||
|
||||
depthStencilView.image = offScreenFrameBuf.depth.image;
|
||||
VK_CHECK_RESULT(vkCreateImageView(device, &depthStencilView, nullptr, &offScreenFrameBuf.depth.view));
|
||||
VkSubpassDescription subpassDescription = {};
|
||||
subpassDescription.pipelineBindPoint = VK_PIPELINE_BIND_POINT_GRAPHICS;
|
||||
subpassDescription.colorAttachmentCount = 1;
|
||||
subpassDescription.pColorAttachments = &colorReference;
|
||||
subpassDescription.pDepthStencilAttachment = &depthReference;
|
||||
|
||||
// Use subpass dependencies for 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;
|
||||
|
||||
// Create the actual renderpass
|
||||
VkRenderPassCreateInfo renderPassInfo = {};
|
||||
renderPassInfo.sType = VK_STRUCTURE_TYPE_RENDER_PASS_CREATE_INFO;
|
||||
renderPassInfo.attachmentCount = static_cast<uint32_t>(attchmentDescriptions.size());
|
||||
renderPassInfo.pAttachments = attchmentDescriptions.data();
|
||||
renderPassInfo.subpassCount = 1;
|
||||
renderPassInfo.pSubpasses = &subpassDescription;
|
||||
renderPassInfo.dependencyCount = static_cast<uint32_t>(dependencies.size());
|
||||
renderPassInfo.pDependencies = dependencies.data();
|
||||
|
||||
VK_CHECK_RESULT(vkCreateRenderPass(device, &renderPassInfo, nullptr, &offscreenPass.renderPass));
|
||||
|
||||
VkImageView attachments[2];
|
||||
attachments[0] = offScreenFrameBuf.color.view;
|
||||
attachments[1] = offScreenFrameBuf.depth.view;
|
||||
attachments[0] = offscreenPass.color.view;
|
||||
attachments[1] = offscreenPass.depth.view;
|
||||
|
||||
VkFramebufferCreateInfo fbufCreateInfo = vkTools::initializers::framebufferCreateInfo();
|
||||
fbufCreateInfo.renderPass = renderPass;
|
||||
fbufCreateInfo.renderPass = offscreenPass.renderPass;
|
||||
fbufCreateInfo.attachmentCount = 2;
|
||||
fbufCreateInfo.pAttachments = attachments;
|
||||
fbufCreateInfo.width = offScreenFrameBuf.width;
|
||||
fbufCreateInfo.height = offScreenFrameBuf.height;
|
||||
fbufCreateInfo.width = offscreenPass.width;
|
||||
fbufCreateInfo.height = offscreenPass.height;
|
||||
fbufCreateInfo.layers = 1;
|
||||
VK_CHECK_RESULT(vkCreateFramebuffer(device, &fbufCreateInfo, nullptr, &offScreenFrameBuf.frameBuffer));
|
||||
|
||||
VK_CHECK_RESULT(vkCreateFramebuffer(device, &fbufCreateInfo, nullptr, &offscreenPass.frameBuffer));
|
||||
|
||||
// Fill a descriptor for later use in a descriptor set
|
||||
offscreenPass.descriptor.imageLayout = VK_IMAGE_LAYOUT_SHADER_READ_ONLY_OPTIMAL;
|
||||
offscreenPass.descriptor.imageView = offscreenPass.color.view;
|
||||
offscreenPass.descriptor.sampler = offscreenPass.sampler;
|
||||
}
|
||||
|
||||
// Sets up the command buffer that renders the scene to the offscreen frame buffer
|
||||
void buildOffscreenCommandBuffer()
|
||||
{
|
||||
if (offScreenCmdBuffer == VK_NULL_HANDLE)
|
||||
if (offscreenPass.commandBuffer == VK_NULL_HANDLE)
|
||||
{
|
||||
offScreenCmdBuffer = VulkanExampleBase::createCommandBuffer(VK_COMMAND_BUFFER_LEVEL_PRIMARY, false);
|
||||
offscreenPass.commandBuffer = VulkanExampleBase::createCommandBuffer(VK_COMMAND_BUFFER_LEVEL_PRIMARY, false);
|
||||
}
|
||||
if (offscreenPass.semaphore == VK_NULL_HANDLE)
|
||||
{
|
||||
VkSemaphoreCreateInfo semaphoreCreateInfo = vkTools::initializers::semaphoreCreateInfo();
|
||||
VK_CHECK_RESULT(vkCreateSemaphore(device, &semaphoreCreateInfo, nullptr, &offscreenPass.semaphore));
|
||||
}
|
||||
|
||||
// Create a semaphore used to synchronize offscreen rendering and usage
|
||||
VkSemaphoreCreateInfo semaphoreCreateInfo = vkTools::initializers::semaphoreCreateInfo();
|
||||
VK_CHECK_RESULT(vkCreateSemaphore(device, &semaphoreCreateInfo, nullptr, &offscreenSemaphore));
|
||||
|
||||
VkCommandBufferBeginInfo cmdBufInfo = vkTools::initializers::commandBufferBeginInfo();
|
||||
|
||||
|
|
@ -400,50 +356,34 @@ public:
|
|||
clearValues[1].depthStencil = { 1.0f, 0 };
|
||||
|
||||
VkRenderPassBeginInfo renderPassBeginInfo = vkTools::initializers::renderPassBeginInfo();
|
||||
renderPassBeginInfo.renderPass = renderPass;
|
||||
renderPassBeginInfo.framebuffer = offScreenFrameBuf.frameBuffer;
|
||||
renderPassBeginInfo.renderArea.extent.width = offScreenFrameBuf.width;
|
||||
renderPassBeginInfo.renderArea.extent.height = offScreenFrameBuf.height;
|
||||
renderPassBeginInfo.renderPass = offscreenPass.renderPass;
|
||||
renderPassBeginInfo.framebuffer = offscreenPass.frameBuffer;
|
||||
renderPassBeginInfo.renderArea.extent.width = offscreenPass.width;
|
||||
renderPassBeginInfo.renderArea.extent.height = offscreenPass.height;
|
||||
renderPassBeginInfo.clearValueCount = 2;
|
||||
renderPassBeginInfo.pClearValues = clearValues;
|
||||
|
||||
VK_CHECK_RESULT(vkBeginCommandBuffer(offScreenCmdBuffer, &cmdBufInfo));
|
||||
VK_CHECK_RESULT(vkBeginCommandBuffer(offscreenPass.commandBuffer, &cmdBufInfo));
|
||||
|
||||
// Change back layout of the color attachment after sampling in the fragment shader
|
||||
vkTools::setImageLayout(
|
||||
offScreenCmdBuffer,
|
||||
offScreenFrameBuf.color.image,
|
||||
VK_IMAGE_ASPECT_COLOR_BIT,
|
||||
VK_IMAGE_LAYOUT_SHADER_READ_ONLY_OPTIMAL,
|
||||
VK_IMAGE_LAYOUT_COLOR_ATTACHMENT_OPTIMAL);
|
||||
VkViewport viewport = vkTools::initializers::viewport((float)offscreenPass.width, (float)offscreenPass.height, 0.0f, 1.0f);
|
||||
vkCmdSetViewport(offscreenPass.commandBuffer, 0, 1, &viewport);
|
||||
|
||||
VkViewport viewport = vkTools::initializers::viewport((float)offScreenFrameBuf.width, (float)offScreenFrameBuf.height, 0.0f, 1.0f);
|
||||
vkCmdSetViewport(offScreenCmdBuffer, 0, 1, &viewport);
|
||||
VkRect2D scissor = vkTools::initializers::rect2D(offscreenPass.width, offscreenPass.height, 0, 0);
|
||||
vkCmdSetScissor(offscreenPass.commandBuffer, 0, 1, &scissor);
|
||||
|
||||
VkRect2D scissor = vkTools::initializers::rect2D(offScreenFrameBuf.width, offScreenFrameBuf.height, 0, 0);
|
||||
vkCmdSetScissor(offScreenCmdBuffer, 0, 1, &scissor);
|
||||
vkCmdBeginRenderPass(offscreenPass.commandBuffer, &renderPassBeginInfo, VK_SUBPASS_CONTENTS_INLINE);
|
||||
|
||||
vkCmdBeginRenderPass(offScreenCmdBuffer, &renderPassBeginInfo, VK_SUBPASS_CONTENTS_INLINE);
|
||||
|
||||
vkCmdBindDescriptorSets(offScreenCmdBuffer, VK_PIPELINE_BIND_POINT_GRAPHICS, pipelineLayouts.scene, 0, 1, &descriptorSets.scene, 0, NULL);
|
||||
vkCmdBindPipeline(offScreenCmdBuffer, VK_PIPELINE_BIND_POINT_GRAPHICS, pipelines.colorPass);
|
||||
vkCmdBindDescriptorSets(offscreenPass.commandBuffer, VK_PIPELINE_BIND_POINT_GRAPHICS, pipelineLayouts.scene, 0, 1, &descriptorSets.scene, 0, NULL);
|
||||
vkCmdBindPipeline(offscreenPass.commandBuffer, VK_PIPELINE_BIND_POINT_GRAPHICS, pipelines.colorPass);
|
||||
|
||||
VkDeviceSize offsets[1] = { 0 };
|
||||
vkCmdBindVertexBuffers(offScreenCmdBuffer, VERTEX_BUFFER_BIND_ID, 1, &meshes.example.vertices.buf, offsets);
|
||||
vkCmdBindIndexBuffer(offScreenCmdBuffer, meshes.example.indices.buf, 0, VK_INDEX_TYPE_UINT32);
|
||||
vkCmdDrawIndexed(offScreenCmdBuffer, meshes.example.indexCount, 1, 0, 0, 0);
|
||||
vkCmdBindVertexBuffers(offscreenPass.commandBuffer, VERTEX_BUFFER_BIND_ID, 1, &meshes.example.vertices.buf, offsets);
|
||||
vkCmdBindIndexBuffer(offscreenPass.commandBuffer, meshes.example.indices.buf, 0, VK_INDEX_TYPE_UINT32);
|
||||
vkCmdDrawIndexed(offscreenPass.commandBuffer, meshes.example.indexCount, 1, 0, 0, 0);
|
||||
|
||||
vkCmdEndRenderPass(offScreenCmdBuffer);
|
||||
vkCmdEndRenderPass(offscreenPass.commandBuffer);
|
||||
|
||||
// Change layout of the color attachment for sampling in the fragment shader
|
||||
vkTools::setImageLayout(
|
||||
offScreenCmdBuffer,
|
||||
offScreenFrameBuf.color.image,
|
||||
VK_IMAGE_ASPECT_COLOR_BIT,
|
||||
VK_IMAGE_LAYOUT_COLOR_ATTACHMENT_OPTIMAL,
|
||||
VK_IMAGE_LAYOUT_SHADER_READ_ONLY_OPTIMAL);
|
||||
|
||||
VK_CHECK_RESULT(vkEndCommandBuffer(offScreenCmdBuffer));
|
||||
VK_CHECK_RESULT(vkEndCommandBuffer(offscreenPass.commandBuffer));
|
||||
}
|
||||
|
||||
void reBuildCommandBuffers()
|
||||
|
|
@ -514,7 +454,7 @@ public:
|
|||
}
|
||||
}
|
||||
|
||||
void loadMeshes()
|
||||
void loadAssets()
|
||||
{
|
||||
loadMesh(getAssetPath() + "models/glowsphere.dae", &meshes.example, vertexLayout, 0.05f);
|
||||
}
|
||||
|
|
@ -675,13 +615,6 @@ public:
|
|||
|
||||
VK_CHECK_RESULT(vkAllocateDescriptorSets(device, &allocInfo, &descriptorSets.quad));
|
||||
|
||||
// Image descriptor for the offscreen color attachment image
|
||||
VkDescriptorImageInfo texDescriptor =
|
||||
vkTools::initializers::descriptorImageInfo(
|
||||
offScreenFrameBuf.colorSampler,
|
||||
offScreenFrameBuf.color.view,
|
||||
VK_IMAGE_LAYOUT_GENERAL);
|
||||
|
||||
std::vector<VkWriteDescriptorSet> writeDescriptorSets =
|
||||
{
|
||||
// Binding 0 : Vertex shader uniform buffer
|
||||
|
|
@ -695,7 +628,7 @@ public:
|
|||
descriptorSets.quad,
|
||||
VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER,
|
||||
1,
|
||||
&texDescriptor),
|
||||
&offscreenPass.descriptor),
|
||||
// Binding 2 : Fragment shader uniform buffer
|
||||
vkTools::initializers::writeDescriptorSet(
|
||||
descriptorSets.quad,
|
||||
|
|
@ -803,7 +736,6 @@ public:
|
|||
blendAttachmentState.alphaBlendOp = VK_BLEND_OP_ADD;
|
||||
blendAttachmentState.srcAlphaBlendFactor = VK_BLEND_FACTOR_SRC_ALPHA;
|
||||
blendAttachmentState.dstAlphaBlendFactor = VK_BLEND_FACTOR_DST_ALPHA;
|
||||
|
||||
VK_CHECK_RESULT(vkCreateGraphicsPipelines(device, pipelineCache, 1, &pipelineCreateInfo, nullptr, &pipelines.radialBlur));
|
||||
|
||||
// No blending (for debug display)
|
||||
|
|
@ -813,17 +745,16 @@ public:
|
|||
// Phong pass
|
||||
shaderStages[0] = loadShader(getAssetPath() + "shaders/radialblur/phongpass.vert.spv", VK_SHADER_STAGE_VERTEX_BIT);
|
||||
shaderStages[1] = loadShader(getAssetPath() + "shaders/radialblur/phongpass.frag.spv", VK_SHADER_STAGE_FRAGMENT_BIT);
|
||||
|
||||
pipelineCreateInfo.layout = pipelineLayouts.scene;
|
||||
blendAttachmentState.blendEnable = VK_FALSE;
|
||||
depthStencilState.depthWriteEnable = VK_TRUE;
|
||||
|
||||
VK_CHECK_RESULT(vkCreateGraphicsPipelines(device, pipelineCache, 1, &pipelineCreateInfo, nullptr, &pipelines.phongPass));
|
||||
|
||||
// Color only pass (offscreen blur base)
|
||||
shaderStages[0] = loadShader(getAssetPath() + "shaders/radialblur/colorpass.vert.spv", VK_SHADER_STAGE_VERTEX_BIT);
|
||||
shaderStages[1] = loadShader(getAssetPath() + "shaders/radialblur/colorpass.frag.spv", VK_SHADER_STAGE_FRAGMENT_BIT);
|
||||
|
||||
pipelineCreateInfo.renderPass = offscreenPass.renderPass;
|
||||
pipelineCreateInfo.layout = pipelineLayouts.radialBlur;
|
||||
VK_CHECK_RESULT(vkCreateGraphicsPipelines(device, pipelineCache, 1, &pipelineCreateInfo, nullptr, &pipelines.colorPass));
|
||||
}
|
||||
|
||||
|
|
@ -905,33 +836,22 @@ public:
|
|||
{
|
||||
VulkanExampleBase::prepareFrame();
|
||||
|
||||
// The scene render command buffer has to wait for the offscreen
|
||||
// rendering to be finished before we can use the framebuffer
|
||||
// color image for sampling during final rendering
|
||||
// To ensure this we use a dedicated offscreen synchronization
|
||||
// semaphore that will be signaled when offscreen renderin
|
||||
// has been finished
|
||||
// This is necessary as an implementation may start both
|
||||
// command buffers at the same time, there is no guarantee
|
||||
// that command buffers will be executed in the order they
|
||||
// have been submitted by the application
|
||||
|
||||
// Offscreen rendering
|
||||
|
||||
// Wait for swap chain presentation to finish
|
||||
submitInfo.pWaitSemaphores = &semaphores.presentComplete;
|
||||
// Signal ready with offscreen semaphore
|
||||
submitInfo.pSignalSemaphores = &offscreenSemaphore;
|
||||
submitInfo.pSignalSemaphores = &offscreenPass.semaphore;
|
||||
|
||||
// Submit work
|
||||
submitInfo.commandBufferCount = 1;
|
||||
submitInfo.pCommandBuffers = &offScreenCmdBuffer;
|
||||
submitInfo.pCommandBuffers = &offscreenPass.commandBuffer;
|
||||
VK_CHECK_RESULT(vkQueueSubmit(queue, 1, &submitInfo, VK_NULL_HANDLE));
|
||||
|
||||
// Scene rendering
|
||||
|
||||
// Wait for offscreen semaphore
|
||||
submitInfo.pWaitSemaphores = &offscreenSemaphore;
|
||||
submitInfo.pWaitSemaphores = &offscreenPass.semaphore;
|
||||
// Signal ready with render complete semaphpre
|
||||
submitInfo.pSignalSemaphores = &semaphores.renderComplete;
|
||||
|
||||
|
|
@ -945,9 +865,9 @@ public:
|
|||
void prepare()
|
||||
{
|
||||
VulkanExampleBase::prepare();
|
||||
loadAssets();
|
||||
generateQuad();
|
||||
loadMeshes();
|
||||
prepareOffscreenFramebuffer();
|
||||
prepareOffscreen();
|
||||
setupVertexDescriptions();
|
||||
prepareUniformBuffers();
|
||||
setupDescriptorSetLayout();
|
||||
|
|
@ -976,6 +896,19 @@ public:
|
|||
updateUniformBuffersScreen();
|
||||
}
|
||||
|
||||
void toggleBlur()
|
||||
{
|
||||
blur = !blur;
|
||||
updateUniformBuffersScene();
|
||||
reBuildCommandBuffers();
|
||||
}
|
||||
|
||||
void toggleTextureDisplay()
|
||||
{
|
||||
displayTexture = !displayTexture;
|
||||
reBuildCommandBuffers();
|
||||
}
|
||||
|
||||
virtual void keyPressed(uint32_t keyCode)
|
||||
{
|
||||
switch (keyCode)
|
||||
|
|
@ -1001,79 +934,6 @@ public:
|
|||
textOverlay->addText("Press \"T\" to display offscreen texture", 5.0f, 105.0f, VulkanTextOverlay::alignLeft);
|
||||
#endif
|
||||
}
|
||||
|
||||
void toggleBlur()
|
||||
{
|
||||
blur = !blur;
|
||||
updateUniformBuffersScene();
|
||||
reBuildCommandBuffers();
|
||||
}
|
||||
|
||||
void toggleTextureDisplay()
|
||||
{
|
||||
displayTexture = !displayTexture;
|
||||
reBuildCommandBuffers();
|
||||
}
|
||||
|
||||
};
|
||||
|
||||
VulkanExample *vulkanExample;
|
||||
|
||||
#if defined(_WIN32)
|
||||
LRESULT CALLBACK WndProc(HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
|
||||
{
|
||||
if (vulkanExample != NULL)
|
||||
{
|
||||
vulkanExample->handleMessages(hWnd, uMsg, wParam, lParam);
|
||||
}
|
||||
return (DefWindowProc(hWnd, uMsg, wParam, lParam));
|
||||
}
|
||||
#elif defined(__linux__) && !defined(__ANDROID__)
|
||||
static void handleEvent(const xcb_generic_event_t *event)
|
||||
{
|
||||
if (vulkanExample != NULL)
|
||||
{
|
||||
vulkanExample->handleEvent(event);
|
||||
}
|
||||
}
|
||||
#endif
|
||||
|
||||
// Main entry point
|
||||
#if defined(_WIN32)
|
||||
// Windows entry point
|
||||
int APIENTRY WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR pCmdLine, int nCmdShow)
|
||||
#elif defined(__ANDROID__)
|
||||
// Android entry point
|
||||
void android_main(android_app* state)
|
||||
#elif defined(__linux__)
|
||||
// Linux entry point
|
||||
int main(const int argc, const char *argv[])
|
||||
#endif
|
||||
{
|
||||
#if defined(__ANDROID__)
|
||||
// Removing this may cause the compiler to omit the main entry point
|
||||
// which would make the application crash at start
|
||||
app_dummy();
|
||||
#endif
|
||||
vulkanExample = new VulkanExample();
|
||||
#if defined(_WIN32)
|
||||
vulkanExample->setupWindow(hInstance, WndProc);
|
||||
#elif defined(__ANDROID__)
|
||||
// Attach vulkan example to global android application state
|
||||
state->userData = vulkanExample;
|
||||
state->onAppCmd = VulkanExample::handleAppCommand;
|
||||
state->onInputEvent = VulkanExample::handleAppInput;
|
||||
vulkanExample->androidApp = state;
|
||||
#elif defined(__linux__)
|
||||
vulkanExample->setupWindow();
|
||||
#endif
|
||||
#if !defined(__ANDROID__)
|
||||
vulkanExample->initSwapchain();
|
||||
vulkanExample->prepare();
|
||||
#endif
|
||||
vulkanExample->renderLoop();
|
||||
delete(vulkanExample);
|
||||
#if !defined(__ANDROID__)
|
||||
return 0;
|
||||
#endif
|
||||
}
|
||||
VULKAN_EXAMPLE_MAIN()
|
||||
|
|
|
|||
Loading…
Add table
Add a link
Reference in a new issue