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Ray tracing samples properly handle window resize

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Refs #750
This commit is contained in:
Sascha Willems 2020-08-16 10:28:29 +02:00
parent 9e22fe7b0d
commit d6b61a0952
3 changed files with 66 additions and 0 deletions
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22
examples/raytracingshadows/raytracingshadows.cpp
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@ -679,11 +679,33 @@ public:
updateUniformBuffers();
}
/*
If the window has been resized, we need to recreate the storage image and it's descriptor
*/
void handleResize()
{
// Delete allocated resources
vkDestroyImageView(device, storageImage.view, nullptr);
vkDestroyImage(device, storageImage.image, nullptr);
vkFreeMemory(device, storageImage.memory, nullptr);
// Recreate image
createStorageImage();
// Update descriptor
VkDescriptorImageInfo storageImageDescriptor{ VK_NULL_HANDLE, storageImage.view, VK_IMAGE_LAYOUT_GENERAL };
VkWriteDescriptorSet resultImageWrite = vks::initializers::writeDescriptorSet(descriptorSet, VK_DESCRIPTOR_TYPE_STORAGE_IMAGE, 1, &storageImageDescriptor);
vkUpdateDescriptorSets(device, 1, &resultImageWrite, 0, VK_NULL_HANDLE);
}
/*
Command buffer generation
*/
void buildCommandBuffers()
{
if (resized)
{
handleResize();
}
VkCommandBufferBeginInfo cmdBufInfo = vks::initializers::commandBufferBeginInfo();
VkImageSubresourceRange subresourceRange = { VK_IMAGE_ASPECT_COLOR_BIT, 0, 1, 0, 1 };