Fold layout transitions into subpass (Refs #155), refactoring of offscreen render pass
This commit is contained in:
saschawillems
parent
e74e37cc16
commit
60c817691e
2 changed files with 171 additions and 248 deletions
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@ -215,14 +215,17 @@ 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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FrameBufferAttachment color, depth;
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vkTools::VulkanTexture textureTarget;
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} offScreenFrameBuf;
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VkCommandBuffer offScreenCmdBuffer = 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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// Random tag data
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struct {
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@ -265,106 +268,29 @@ public:
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vkTools::destroyUniformData(device, &uniformData.vsScene);
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// Offscreen
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// Texture target
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textureLoader->destroyTexture(offScreenFrameBuf.textureTarget);
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// Frame buffer
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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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vkDestroyFramebuffer(device, offScreenFrameBuf.frameBuffer, 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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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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vkFreeCommandBuffers(device, cmdPool, 1, &offscreenPass.commandBuffer);
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vkDestroySemaphore(device, offscreenPass.semaphore, nullptr);
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}
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// Prepare a texture target and framebuffer for offscreen rendering
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void prepareOffscreen()
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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, OFFSCREEN_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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// Texture target
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vkTools::VulkanTexture *tex = &offScreenFrameBuf.textureTarget;
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// Prepare blit target texture
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tex->width = OFFSCREEN_DIM;
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tex->height = OFFSCREEN_DIM;
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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 = OFFSCREEN_FORMAT;
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imageCreateInfo.extent = { OFFSCREEN_DIM, OFFSCREEN_DIM, 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 = OFFSCREEN_FILTER;
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sampler.minFilter = OFFSCREEN_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 = OFFSCREEN_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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// Name for debugging
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DebugMarker::setObjectName(device, (uint64_t)tex->image, VK_DEBUG_REPORT_OBJECT_TYPE_IMAGE_EXT, "Off-screen texture target image");
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DebugMarker::setObjectName(device, (uint64_t)tex->sampler, VK_DEBUG_REPORT_OBJECT_TYPE_SAMPLER_EXT, "Off-screen texture target sampler");
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// Frame buffer
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offScreenFrameBuf.width = OFFSCREEN_DIM;
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offScreenFrameBuf.height = OFFSCREEN_DIM;
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offscreenPass.width = OFFSCREEN_DIM;
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offscreenPass.height = OFFSCREEN_DIM;
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// Find a suitable depth format
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VkFormat fbDepthFormat;
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@ -375,49 +301,64 @@ public:
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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 = OFFSCREEN_FORMAT;
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image.extent.width = offScreenFrameBuf.width;
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image.extent.height = offScreenFrameBuf.height;
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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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image.samples = VK_SAMPLE_COUNT_1_BIT;
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image.tiling = VK_IMAGE_TILING_OPTIMAL;
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// Image of the framebuffer is blit source
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image.usage = VK_IMAGE_USAGE_COLOR_ATTACHMENT_BIT | VK_IMAGE_USAGE_TRANSFER_SRC_BIT;
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image.flags = 0;
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// We will sample directly from the color attachment
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image.usage = VK_IMAGE_USAGE_COLOR_ATTACHMENT_BIT | VK_IMAGE_USAGE_SAMPLED_BIT;
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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 = OFFSCREEN_FORMAT;
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colorImageView.flags = 0;
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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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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, &offScreenFrameBuf.color.mem));
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VK_CHECK_RESULT(vkBindImageMemory(device, offScreenFrameBuf.color.image, offScreenFrameBuf.color.mem, 0));
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vkTools::setImageLayout(
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cmdBuffer,
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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_COLOR_ATTACHMENT_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 the attachment in the fragment shader
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VkSamplerCreateInfo samplerInfo = vkTools::initializers::samplerCreateInfo();
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samplerInfo.magFilter = OFFSCREEN_FILTER;
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samplerInfo.minFilter = OFFSCREEN_FILTER;
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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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@ -428,50 +369,110 @@ 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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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, &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(
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cmdBuffer,
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offScreenFrameBuf.depth.image,
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VK_IMAGE_ASPECT_DEPTH_BIT | VK_IMAGE_ASPECT_STENCIL_BIT,
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VK_IMAGE_LAYOUT_UNDEFINED,
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VK_IMAGE_LAYOUT_DEPTH_STENCIL_ATTACHMENT_OPTIMAL);
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std::array<VkAttachmentDescription, 2> attchmentDescriptions = {};
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// Color attachment
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attchmentDescriptions[0].format = OFFSCREEN_FORMAT;
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attchmentDescriptions[0].samples = VK_SAMPLE_COUNT_1_BIT;
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attchmentDescriptions[0].loadOp = VK_ATTACHMENT_LOAD_OP_CLEAR;
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attchmentDescriptions[0].storeOp = VK_ATTACHMENT_STORE_OP_STORE;
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attchmentDescriptions[0].stencilLoadOp = VK_ATTACHMENT_LOAD_OP_DONT_CARE;
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attchmentDescriptions[0].stencilStoreOp = VK_ATTACHMENT_STORE_OP_DONT_CARE;
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attchmentDescriptions[0].initialLayout = VK_IMAGE_LAYOUT_UNDEFINED;
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attchmentDescriptions[0].finalLayout = VK_IMAGE_LAYOUT_SHADER_READ_ONLY_OPTIMAL;
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// Depth attachment
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attchmentDescriptions[1].format = fbDepthFormat;
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attchmentDescriptions[1].samples = VK_SAMPLE_COUNT_1_BIT;
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attchmentDescriptions[1].loadOp = VK_ATTACHMENT_LOAD_OP_CLEAR;
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attchmentDescriptions[1].storeOp = VK_ATTACHMENT_STORE_OP_DONT_CARE;
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attchmentDescriptions[1].stencilLoadOp = VK_ATTACHMENT_LOAD_OP_DONT_CARE;
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attchmentDescriptions[1].stencilStoreOp = VK_ATTACHMENT_STORE_OP_DONT_CARE;
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attchmentDescriptions[1].initialLayout = VK_IMAGE_LAYOUT_UNDEFINED;
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attchmentDescriptions[1].finalLayout = VK_IMAGE_LAYOUT_DEPTH_STENCIL_ATTACHMENT_OPTIMAL;
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depthStencilView.image = offScreenFrameBuf.depth.image;
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VK_CHECK_RESULT(vkCreateImageView(device, &depthStencilView, nullptr, &offScreenFrameBuf.depth.view));
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VkAttachmentReference colorReference = { 0, VK_IMAGE_LAYOUT_COLOR_ATTACHMENT_OPTIMAL };
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VkAttachmentReference depthReference = { 1, VK_IMAGE_LAYOUT_DEPTH_STENCIL_ATTACHMENT_OPTIMAL };
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VkSubpassDescription subpassDescription = {};
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subpassDescription.pipelineBindPoint = VK_PIPELINE_BIND_POINT_GRAPHICS;
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subpassDescription.colorAttachmentCount = 1;
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subpassDescription.pColorAttachments = &colorReference;
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subpassDescription.pDepthStencilAttachment = &depthReference;
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// Use subpass dependencies for 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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// Create the actual renderpass
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VkRenderPassCreateInfo renderPassInfo = {};
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renderPassInfo.sType = VK_STRUCTURE_TYPE_RENDER_PASS_CREATE_INFO;
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renderPassInfo.attachmentCount = static_cast<uint32_t>(attchmentDescriptions.size());
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renderPassInfo.pAttachments = attchmentDescriptions.data();
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renderPassInfo.subpassCount = 1;
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renderPassInfo.pSubpasses = &subpassDescription;
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renderPassInfo.dependencyCount = static_cast<uint32_t>(dependencies.size());
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renderPassInfo.pDependencies = dependencies.data();
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VK_CHECK_RESULT(vkCreateRenderPass(device, &renderPassInfo, nullptr, &offscreenPass.renderPass));
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VkImageView attachments[2];
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attachments[0] = offScreenFrameBuf.color.view;
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attachments[1] = offScreenFrameBuf.depth.view;
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attachments[0] = offscreenPass.color.view;
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attachments[1] = offscreenPass.depth.view;
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VkFramebufferCreateInfo fbufCreateInfo = vkTools::initializers::framebufferCreateInfo();
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fbufCreateInfo.renderPass = renderPass;
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fbufCreateInfo.renderPass = offscreenPass.renderPass;
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fbufCreateInfo.attachmentCount = 2;
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fbufCreateInfo.pAttachments = attachments;
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fbufCreateInfo.width = offScreenFrameBuf.width;
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fbufCreateInfo.height = offScreenFrameBuf.height;
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fbufCreateInfo.width = offscreenPass.width;
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fbufCreateInfo.height = offscreenPass.height;
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fbufCreateInfo.layers = 1;
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VK_CHECK_RESULT(vkCreateFramebuffer(device, &fbufCreateInfo, nullptr, &offScreenFrameBuf.frameBuffer));
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VulkanExampleBase::flushCommandBuffer(cmdBuffer, queue, true);
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VK_CHECK_RESULT(vkCreateFramebuffer(device, &fbufCreateInfo, nullptr, &offscreenPass.frameBuffer));
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// Command buffer for offscreen rendering
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offScreenCmdBuffer = VulkanExampleBase::createCommandBuffer(VK_COMMAND_BUFFER_LEVEL_PRIMARY, false);
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// Fill a descriptor for later use in a descriptor set
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offscreenPass.descriptor.imageLayout = VK_IMAGE_LAYOUT_SHADER_READ_ONLY_OPTIMAL;
|
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offscreenPass.descriptor.imageView = offscreenPass.color.view;
|
||||
offscreenPass.descriptor.sampler = offscreenPass.sampler;
|
||||
|
||||
// Name for debugging
|
||||
DebugMarker::setObjectName(device, (uint64_t)offScreenFrameBuf.color.image, VK_DEBUG_REPORT_OBJECT_TYPE_IMAGE_EXT, "Off-screen color framebuffer");
|
||||
DebugMarker::setObjectName(device, (uint64_t)offScreenFrameBuf.depth.image, VK_DEBUG_REPORT_OBJECT_TYPE_IMAGE_EXT, "Off-screen depth framebuffer");
|
||||
// Name some objects for debugging
|
||||
DebugMarker::setObjectName(device, (uint64_t)offscreenPass.color.image, VK_DEBUG_REPORT_OBJECT_TYPE_IMAGE_EXT, "Off-screen color framebuffer");
|
||||
DebugMarker::setObjectName(device, (uint64_t)offscreenPass.depth.image, VK_DEBUG_REPORT_OBJECT_TYPE_IMAGE_EXT, "Off-screen depth framebuffer");
|
||||
DebugMarker::setObjectName(device, (uint64_t)offscreenPass.sampler, VK_DEBUG_REPORT_OBJECT_TYPE_SAMPLER_EXT, "Off-screen framebuffer default sampler");
|
||||
}
|
||||
|
||||
// Command buffer for rendering color only scene for glow
|
||||
void buildOffscreenCommandBuffer()
|
||||
{
|
||||
if (offscreenPass.commandBuffer == VK_NULL_HANDLE)
|
||||
{
|
||||
offscreenPass.commandBuffer = VulkanExampleBase::createCommandBuffer(VK_COMMAND_BUFFER_LEVEL_PRIMARY, false);
|
||||
}
|
||||
if (offscreenPass.semaphore == VK_NULL_HANDLE)
|
||||
{
|
||||
// Create a semaphore used to synchronize offscreen rendering and usage
|
||||
VkSemaphoreCreateInfo semaphoreCreateInfo = vkTools::initializers::semaphoreCreateInfo();
|
||||
VK_CHECK_RESULT(vkCreateSemaphore(device, &semaphoreCreateInfo, nullptr, &offscreenPass.semaphore));
|
||||
}
|
||||
|
||||
VkCommandBufferBeginInfo cmdBufInfo = vkTools::initializers::commandBufferBeginInfo();
|
||||
|
||||
VkClearValue clearValues[2];
|
||||
|
|
@ -479,107 +480,37 @@ 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));
|
||||
|
||||
// Start a new debug marker region
|
||||
DebugMarker::beginRegion(offScreenCmdBuffer, "Off-screen scene rendering", glm::vec4(1.0f, 0.78f, 0.05f, 1.0f));
|
||||
DebugMarker::beginRegion(offscreenPass.commandBuffer, "Off-screen scene rendering", glm::vec4(1.0f, 0.78f, 0.05f, 1.0f));
|
||||
|
||||
VkViewport viewport = vkTools::initializers::viewport((float)offScreenFrameBuf.width, (float)offScreenFrameBuf.height, 0.0f, 1.0f);
|
||||
vkCmdSetViewport(offScreenCmdBuffer, 0, 1, &viewport);
|
||||
VkViewport viewport = vkTools::initializers::viewport((float)offscreenPass.width, (float)offscreenPass.height, 0.0f, 1.0f);
|
||||
vkCmdSetViewport(offscreenPass.commandBuffer, 0, 1, &viewport);
|
||||
|
||||
VkRect2D scissor = vkTools::initializers::rect2D(offScreenFrameBuf.width, offScreenFrameBuf.height, 0, 0);
|
||||
vkCmdSetScissor(offScreenCmdBuffer, 0, 1, &scissor);
|
||||
VkRect2D scissor = vkTools::initializers::rect2D(offscreenPass.width, offscreenPass.height, 0, 0);
|
||||
vkCmdSetScissor(offscreenPass.commandBuffer, 0, 1, &scissor);
|
||||
|
||||
vkCmdBeginRenderPass(offScreenCmdBuffer, &renderPassBeginInfo, VK_SUBPASS_CONTENTS_INLINE);
|
||||
vkCmdBeginRenderPass(offscreenPass.commandBuffer, &renderPassBeginInfo, VK_SUBPASS_CONTENTS_INLINE);
|
||||
|
||||
vkCmdBindDescriptorSets(offScreenCmdBuffer, VK_PIPELINE_BIND_POINT_GRAPHICS, pipelineLayout, 0, 1, &descriptorSets.scene, 0, NULL);
|
||||
vkCmdBindPipeline(offScreenCmdBuffer, VK_PIPELINE_BIND_POINT_GRAPHICS, pipelines.color);
|
||||
vkCmdBindDescriptorSets(offscreenPass.commandBuffer, VK_PIPELINE_BIND_POINT_GRAPHICS, pipelineLayout, 0, 1, &descriptorSets.scene, 0, NULL);
|
||||
vkCmdBindPipeline(offscreenPass.commandBuffer, VK_PIPELINE_BIND_POINT_GRAPHICS, pipelines.color);
|
||||
|
||||
// Draw glow scene
|
||||
sceneGlow.draw(offScreenCmdBuffer);
|
||||
sceneGlow.draw(offscreenPass.commandBuffer);
|
||||
|
||||
vkCmdEndRenderPass(offScreenCmdBuffer);
|
||||
vkCmdEndRenderPass(offscreenPass.commandBuffer);
|
||||
|
||||
// Make sure color writes to the framebuffer are finished before using it as transfer source
|
||||
vkTools::setImageLayout(
|
||||
offScreenCmdBuffer,
|
||||
offScreenFrameBuf.color.image,
|
||||
VK_IMAGE_ASPECT_COLOR_BIT,
|
||||
VK_IMAGE_LAYOUT_COLOR_ATTACHMENT_OPTIMAL,
|
||||
VK_IMAGE_LAYOUT_TRANSFER_SRC_OPTIMAL);
|
||||
DebugMarker::endRegion(offscreenPass.commandBuffer);
|
||||
|
||||
// Transform texture target to transfer destination
|
||||
vkTools::setImageLayout(
|
||||
offScreenCmdBuffer,
|
||||
offScreenFrameBuf.textureTarget.image,
|
||||
VK_IMAGE_ASPECT_COLOR_BIT,
|
||||
VK_IMAGE_LAYOUT_SHADER_READ_ONLY_OPTIMAL,
|
||||
VK_IMAGE_LAYOUT_TRANSFER_DST_OPTIMAL);
|
||||
|
||||
// Blit offscreen color buffer to our texture target
|
||||
VkImageBlit imgBlit;
|
||||
|
||||
imgBlit.srcSubresource.aspectMask = VK_IMAGE_ASPECT_COLOR_BIT;
|
||||
imgBlit.srcSubresource.mipLevel = 0;
|
||||
imgBlit.srcSubresource.baseArrayLayer = 0;
|
||||
imgBlit.srcSubresource.layerCount = 1;
|
||||
|
||||
imgBlit.srcOffsets[0] = { 0, 0, 0 };
|
||||
imgBlit.srcOffsets[1].x = offScreenFrameBuf.width;
|
||||
imgBlit.srcOffsets[1].y = offScreenFrameBuf.height;
|
||||
imgBlit.srcOffsets[1].z = 1;
|
||||
|
||||
imgBlit.dstSubresource.aspectMask = VK_IMAGE_ASPECT_COLOR_BIT;
|
||||
imgBlit.dstSubresource.mipLevel = 0;
|
||||
imgBlit.dstSubresource.baseArrayLayer = 0;
|
||||
imgBlit.dstSubresource.layerCount = 1;
|
||||
|
||||
imgBlit.dstOffsets[0] = { 0, 0, 0 };
|
||||
imgBlit.dstOffsets[1].x = offScreenFrameBuf.textureTarget.width;
|
||||
imgBlit.dstOffsets[1].y = offScreenFrameBuf.textureTarget.height;
|
||||
imgBlit.dstOffsets[1].z = 1;
|
||||
|
||||
// Blit from framebuffer image to texture image
|
||||
// vkCmdBlitImage does scaling and (if necessary and possible) also does format conversions
|
||||
vkCmdBlitImage(
|
||||
offScreenCmdBuffer,
|
||||
offScreenFrameBuf.color.image,
|
||||
VK_IMAGE_LAYOUT_TRANSFER_SRC_OPTIMAL,
|
||||
offScreenFrameBuf.textureTarget.image,
|
||||
VK_IMAGE_LAYOUT_TRANSFER_DST_OPTIMAL,
|
||||
1,
|
||||
&imgBlit,
|
||||
VK_FILTER_LINEAR
|
||||
);
|
||||
|
||||
// Transform framebuffer color attachment back
|
||||
vkTools::setImageLayout(
|
||||
offScreenCmdBuffer,
|
||||
offScreenFrameBuf.color.image,
|
||||
VK_IMAGE_ASPECT_COLOR_BIT,
|
||||
VK_IMAGE_LAYOUT_TRANSFER_SRC_OPTIMAL,
|
||||
VK_IMAGE_LAYOUT_COLOR_ATTACHMENT_OPTIMAL);
|
||||
|
||||
// Transform texture target back to shader read
|
||||
// Makes sure that writes to the texture are finished before
|
||||
// it's accessed in the shader
|
||||
vkTools::setImageLayout(
|
||||
offScreenCmdBuffer,
|
||||
offScreenFrameBuf.textureTarget.image,
|
||||
VK_IMAGE_ASPECT_COLOR_BIT,
|
||||
VK_IMAGE_LAYOUT_TRANSFER_DST_OPTIMAL,
|
||||
VK_IMAGE_LAYOUT_SHADER_READ_ONLY_OPTIMAL);
|
||||
|
||||
DebugMarker::endRegion(offScreenCmdBuffer);
|
||||
|
||||
VK_CHECK_RESULT(vkEndCommandBuffer(offScreenCmdBuffer));
|
||||
VK_CHECK_RESULT(vkEndCommandBuffer(offscreenPass.commandBuffer));
|
||||
}
|
||||
|
||||
// Load a model file as separate meshes into a scene
|
||||
|
|
@ -962,12 +893,6 @@ public:
|
|||
|
||||
VK_CHECK_RESULT(vkAllocateDescriptorSets(device, &allocInfo, &descriptorSets.scene));
|
||||
|
||||
VkDescriptorImageInfo texDescriptor =
|
||||
vkTools::initializers::descriptorImageInfo(
|
||||
offScreenFrameBuf.textureTarget.sampler,
|
||||
offScreenFrameBuf.textureTarget.view,
|
||||
VK_IMAGE_LAYOUT_GENERAL);
|
||||
|
||||
std::vector<VkWriteDescriptorSet> writeDescriptorSets =
|
||||
{
|
||||
// Binding 0 : Vertex shader uniform buffer
|
||||
|
|
@ -981,7 +906,7 @@ public:
|
|||
descriptorSets.scene,
|
||||
VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER,
|
||||
1,
|
||||
&texDescriptor)
|
||||
&offscreenPass.descriptor)
|
||||
};
|
||||
|
||||
vkUpdateDescriptorSets(device, writeDescriptorSets.size(), writeDescriptorSets.data(), 0, NULL);
|
||||
|
|
@ -1065,25 +990,22 @@ public:
|
|||
// Color only pipeline
|
||||
shaderStages[0] = loadShader(getAssetPath() + "shaders/debugmarker/colorpass.vert.spv", VK_SHADER_STAGE_VERTEX_BIT);
|
||||
shaderStages[1] = loadShader(getAssetPath() + "shaders/debugmarker/colorpass.frag.spv", VK_SHADER_STAGE_FRAGMENT_BIT);
|
||||
|
||||
pipelineCreateInfo.renderPass = offscreenPass.renderPass;
|
||||
VK_CHECK_RESULT(vkCreateGraphicsPipelines(device, pipelineCache, 1, &pipelineCreateInfo, nullptr, &pipelines.color));
|
||||
|
||||
// Wire frame rendering pipeline
|
||||
rasterizationState.polygonMode = VK_POLYGON_MODE_LINE;
|
||||
rasterizationState.lineWidth = 1.0f;
|
||||
|
||||
pipelineCreateInfo.renderPass = renderPass;
|
||||
VK_CHECK_RESULT(vkCreateGraphicsPipelines(device, pipelineCache, 1, &pipelineCreateInfo, nullptr, &pipelines.wireframe));
|
||||
|
||||
// Post processing effect
|
||||
shaderStages[0] = loadShader(getAssetPath() + "shaders/debugmarker/postprocess.vert.spv", VK_SHADER_STAGE_VERTEX_BIT);
|
||||
shaderStages[1] = loadShader(getAssetPath() + "shaders/debugmarker/postprocess.frag.spv", VK_SHADER_STAGE_FRAGMENT_BIT);
|
||||
|
||||
depthStencilState.depthTestEnable = VK_FALSE;
|
||||
depthStencilState.depthWriteEnable = VK_FALSE;
|
||||
|
||||
rasterizationState.polygonMode = VK_POLYGON_MODE_FILL;
|
||||
rasterizationState.cullMode = VK_CULL_MODE_NONE;
|
||||
|
||||
blendAttachmentState.colorWriteMask = 0xF;
|
||||
blendAttachmentState.blendEnable = VK_TRUE;
|
||||
blendAttachmentState.colorBlendOp = VK_BLEND_OP_ADD;
|
||||
|
|
@ -1092,7 +1014,6 @@ 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.postprocess));
|
||||
|
||||
// Name shader moduels for debugging
|
||||
|
|
@ -1159,7 +1080,7 @@ public:
|
|||
// todo : use event to ensure that offscreen result is finished bfore render command buffer is started
|
||||
if (glow)
|
||||
{
|
||||
submitCmdBuffers.push_back(offScreenCmdBuffer);
|
||||
submitCmdBuffers.push_back(offscreenPass.commandBuffer);
|
||||
}
|
||||
submitCmdBuffers.push_back(drawCmdBuffers[currentBuffer]);
|
||||
|
||||
|
|
|
|||
Loading…
Add table
Add a link
Reference in a new issue