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Added barrier between fragment shader write and read

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This commit is contained in:
Sascha Willems 2021-11-28 21:01:00 +01:00
parent fce1c93266
commit cd6882395d
1 changed files with 6 additions and 0 deletions
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6
examples/oit/oit.cpp
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@ -604,6 +604,12 @@ private:
// Make a pipeline barrier to guarantee the geometry pass is done // Make a pipeline barrier to guarantee the geometry pass is done
vkCmdPipelineBarrier(drawCmdBuffers[i], VK_PIPELINE_STAGE_COLOR_ATTACHMENT_OUTPUT_BIT, VK_PIPELINE_STAGE_FRAGMENT_SHADER_BIT, 0, 0, nullptr, 0, nullptr, 0, nullptr); vkCmdPipelineBarrier(drawCmdBuffers[i], VK_PIPELINE_STAGE_COLOR_ATTACHMENT_OUTPUT_BIT, VK_PIPELINE_STAGE_FRAGMENT_SHADER_BIT, 0, 0, nullptr, 0, nullptr, 0, nullptr);
// We need a barrier to make sure all writes are finished before starting to write again
memoryBarrier = vks::initializers::memoryBarrier();
memoryBarrier.srcAccessMask = VK_ACCESS_SHADER_READ_BIT | VK_ACCESS_SHADER_WRITE_BIT;
memoryBarrier.dstAccessMask = VK_ACCESS_SHADER_READ_BIT | VK_ACCESS_SHADER_WRITE_BIT;
vkCmdPipelineBarrier(drawCmdBuffers[i], VK_PIPELINE_STAGE_FRAGMENT_SHADER_BIT, VK_PIPELINE_STAGE_FRAGMENT_SHADER_BIT, 0, 1, &memoryBarrier, 0, nullptr, 0, nullptr);
// Begin the color render pass // Begin the color render pass
renderPassBeginInfo.renderPass = renderPass; renderPassBeginInfo.renderPass = renderPass;
renderPassBeginInfo.framebuffer = frameBuffers[i]; renderPassBeginInfo.framebuffer = frameBuffers[i];