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Fixed the first frame render error.

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The compute commands should be submit before the graphic command. If not, there is a logical error that cause the first frame render error.  Since the graphic rendering need to sample the compute shader 's output image.
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ShoufengYang 2021-08-03 23:22:48 +08:00 • committed by GitHub
parent ab2d4060d2
commit f4197f93b4
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GPG key ID: 4AEE18F83AFDEB23
1 changed files with 10 additions and 10 deletions
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20
examples/computeraytracing/computeraytracing.cpp
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@ -666,15 +666,6 @@ public:
void draw()
{
VulkanExampleBase::prepareFrame();
// Command buffer to be submitted to the queue
submitInfo.commandBufferCount = 1;
submitInfo.pCommandBuffers = &drawCmdBuffers[currentBuffer];
VK_CHECK_RESULT(vkQueueSubmit(queue, 1, &submitInfo, VK_NULL_HANDLE));
VulkanExampleBase::submitFrame();
// Submit compute commands
// Use a fence to ensure that compute command buffer has finished executing before using it again
vkWaitForFences(device, 1, &compute.fence, VK_TRUE, UINT64_MAX);
@ -685,6 +676,15 @@ public:
computeSubmitInfo.pCommandBuffers = &compute.commandBuffer;
VK_CHECK_RESULT(vkQueueSubmit(compute.queue, 1, &computeSubmitInfo, compute.fence));
VulkanExampleBase::prepareFrame();
// Command buffer to be submitted to the queue
submitInfo.commandBufferCount = 1;
submitInfo.pCommandBuffers = &drawCmdBuffers[currentBuffer];
VK_CHECK_RESULT(vkQueueSubmit(queue, 1, &submitInfo, VK_NULL_HANDLE));
VulkanExampleBase::submitFrame();
}
void prepare()
@ -720,4 +720,4 @@ public:
}
};
VULKAN_EXAMPLE_MAIN()
VULKAN_EXAMPLE_MAIN()