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Updated pipeline stages in readme

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This commit is contained in:
saschawillems 2016-12-17 10:52:02 +01:00
parent deed78921c
commit a88ddff390
1 changed files with 12 additions and 4 deletions
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16
texturemipmapgen/README.md
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@ -74,7 +74,9 @@ vkTools::setImageLayout(
VK_IMAGE_ASPECT_COLOR_BIT,
VK_IMAGE_LAYOUT_TRANSFER_DST_OPTIMAL,
VK_IMAGE_LAYOUT_TRANSFER_SRC_OPTIMAL,
subresourceRange);
subresourceRange,
VK_PIPELINE_STAGE_TRANSFER_BIT,
VK_PIPELINE_STAGE_HOST_BIT);
```
### Generating the mip-chain
@ -124,7 +126,9 @@ Before we can blit to this mip level, we need to transition it's image layout to
VK_IMAGE_ASPECT_COLOR_BIT,
VK_IMAGE_LAYOUT_UNDEFINED,
VK_IMAGE_LAYOUT_TRANSFER_DST_OPTIMAL,
mipSubRange);
mipSubRange,
VK_PIPELINE_STAGE_TRANSFER_BIT,
VK_PIPELINE_STAGE_HOST_BIT);
```
Note that we set the ```baseMipLevel``` member of the subresource range so the image memory barrier will only affect the one mip level we want to copy to.
@ -152,7 +156,9 @@ After the blit is done we can use this mip level as a base for the next level, s
VK_IMAGE_ASPECT_COLOR_BIT,
VK_IMAGE_LAYOUT_TRANSFER_DST_OPTIMAL,
VK_IMAGE_LAYOUT_TRANSFER_SRC_OPTIMAL,
mipSubRange);
mipSubRange,
VK_PIPELINE_STAGE_TRANSFER_BIT,
VK_PIPELINE_STAGE_HOST_BIT);
}
```
@ -167,7 +173,9 @@ Once the loop is done we need to transition all mip levels of the image to their
VK_IMAGE_ASPECT_COLOR_BIT,
VK_IMAGE_LAYOUT_TRANSFER_SRC_OPTIMAL,
VK_IMAGE_LAYOUT_SHADER_READ_ONLY_OPTIMAL;,
subresourceRange);
subresourceRange,
VK_PIPELINE_STAGE_TRANSFER_BIT,
VK_PIPELINE_STAGE_HOST_BIT);
```
Submitting that command buffer will result in an image with a complete mip-chain and all mip levels being transitioned to the proper image layout for shader reads.