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Added sub pass dependency for the depth attachment

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Fixes #769
This commit is contained in:
Sascha Willems 2022-12-13 20:49:19 +01:00
parent 707bb41851
commit 86b5a1109b
1 changed files with 29 additions and 20 deletions
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49
examples/subpasses/subpasses.cpp
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@ -1,7 +1,7 @@
/*
* Vulkan Example - Using subpasses for G-Buffer compositing
*
* Copyright (C) 2016-2017 by Sascha Willems - www.saschawillems.de
* Copyright (C) 2016-2022 by Sascha Willems - www.saschawillems.de
*
* This code is licensed under the MIT license (MIT) (http://opensource.org/licenses/MIT)
*
@ -380,41 +380,50 @@ public:
subpassDescriptions[2].pInputAttachments = inputReferences;
// Subpass dependencies for layout transitions
std::array<VkSubpassDependency, 4> dependencies;
std::array<VkSubpassDependency, 5> dependencies;
// This makes sure that writes to the depth image are done before we try to write to it again
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].srcStageMask = VK_PIPELINE_STAGE_EARLY_FRAGMENT_TESTS_BIT | VK_PIPELINE_STAGE_LATE_FRAGMENT_TESTS_BIT;
dependencies[0].dstStageMask = VK_PIPELINE_STAGE_EARLY_FRAGMENT_TESTS_BIT | VK_PIPELINE_STAGE_LATE_FRAGMENT_TESTS_BIT;
dependencies[0].srcAccessMask = VK_ACCESS_DEPTH_STENCIL_ATTACHMENT_READ_BIT;
dependencies[0].dstAccessMask = VK_ACCESS_DEPTH_STENCIL_ATTACHMENT_WRITE_BIT | VK_ACCESS_DEPTH_STENCIL_ATTACHMENT_READ_BIT;
dependencies[0].dependencyFlags = VK_DEPENDENCY_BY_REGION_BIT;
// This dependency transitions the input attachment from color attachment to shader read
dependencies[1].srcSubpass = 0;
dependencies[1].dstSubpass = 1;
dependencies[1].srcStageMask = VK_PIPELINE_STAGE_COLOR_ATTACHMENT_OUTPUT_BIT;
dependencies[1].dstStageMask = VK_PIPELINE_STAGE_FRAGMENT_SHADER_BIT;
dependencies[1].srcAccessMask = VK_ACCESS_COLOR_ATTACHMENT_WRITE_BIT;
dependencies[1].dstAccessMask = VK_ACCESS_SHADER_READ_BIT;
dependencies[1].srcSubpass = VK_SUBPASS_EXTERNAL;
dependencies[1].dstSubpass = 0;
dependencies[1].srcStageMask = VK_PIPELINE_STAGE_BOTTOM_OF_PIPE_BIT;
dependencies[1].dstStageMask = VK_PIPELINE_STAGE_COLOR_ATTACHMENT_OUTPUT_BIT;
dependencies[1].srcAccessMask = VK_ACCESS_MEMORY_READ_BIT;
dependencies[1].dstAccessMask = VK_ACCESS_COLOR_ATTACHMENT_READ_BIT | VK_ACCESS_COLOR_ATTACHMENT_WRITE_BIT;
dependencies[1].dependencyFlags = VK_DEPENDENCY_BY_REGION_BIT;
dependencies[2].srcSubpass = 1;
dependencies[2].dstSubpass = 2;
// This dependency transitions the input attachment from color attachment to shader read
dependencies[2].srcSubpass = 0;
dependencies[2].dstSubpass = 1;
dependencies[2].srcStageMask = VK_PIPELINE_STAGE_COLOR_ATTACHMENT_OUTPUT_BIT;
dependencies[2].dstStageMask = VK_PIPELINE_STAGE_FRAGMENT_SHADER_BIT;
dependencies[2].srcAccessMask = VK_ACCESS_COLOR_ATTACHMENT_WRITE_BIT;
dependencies[2].dstAccessMask = VK_ACCESS_SHADER_READ_BIT;
dependencies[2].dependencyFlags = VK_DEPENDENCY_BY_REGION_BIT;
dependencies[3].srcSubpass = 2;
dependencies[3].dstSubpass = VK_SUBPASS_EXTERNAL;
dependencies[3].srcSubpass = 1;
dependencies[3].dstSubpass = 2;
dependencies[3].srcStageMask = VK_PIPELINE_STAGE_COLOR_ATTACHMENT_OUTPUT_BIT;
dependencies[3].dstStageMask = VK_PIPELINE_STAGE_BOTTOM_OF_PIPE_BIT;
dependencies[3].srcAccessMask = VK_ACCESS_COLOR_ATTACHMENT_READ_BIT | VK_ACCESS_COLOR_ATTACHMENT_WRITE_BIT;
dependencies[3].dstAccessMask = VK_ACCESS_MEMORY_READ_BIT;
dependencies[3].dstStageMask = VK_PIPELINE_STAGE_FRAGMENT_SHADER_BIT;
dependencies[3].srcAccessMask = VK_ACCESS_COLOR_ATTACHMENT_WRITE_BIT;
dependencies[3].dstAccessMask = VK_ACCESS_SHADER_READ_BIT;
dependencies[3].dependencyFlags = VK_DEPENDENCY_BY_REGION_BIT;
dependencies[4].srcSubpass = 2;
dependencies[4].dstSubpass = VK_SUBPASS_EXTERNAL;
dependencies[4].srcStageMask = VK_PIPELINE_STAGE_COLOR_ATTACHMENT_OUTPUT_BIT;
dependencies[4].dstStageMask = VK_PIPELINE_STAGE_BOTTOM_OF_PIPE_BIT;
dependencies[4].srcAccessMask = VK_ACCESS_COLOR_ATTACHMENT_READ_BIT | VK_ACCESS_COLOR_ATTACHMENT_WRITE_BIT;
dependencies[4].dstAccessMask = VK_ACCESS_MEMORY_READ_BIT;
dependencies[4].dependencyFlags = VK_DEPENDENCY_BY_REGION_BIT;
VkRenderPassCreateInfo renderPassInfo = {};
renderPassInfo.sType = VK_STRUCTURE_TYPE_RENDER_PASS_CREATE_INFO;
renderPassInfo.attachmentCount = static_cast<uint32_t>(attachments.size());