Graphics Reference
In-Depth Information
Relationship between MSAA rasterization, SV_Coverage and SV_SampleIndex
When we determine that the sample is covered, we execute the relevant operations;
otherwise, we exclude the pixel shader result via a call to discard .
There's moreā€¦
An optimization might be to detect edge pixels and store them in a stencil. We can then
perform an MSAA shading pass only for those pixels, while using another pass that only
reads a single sample for all other pixels. Or alternatively, run a blur over those pixels.
See also
F HLSL semantics at http://msdn.microsoft.com/en-us/library/windows/
desktop/bb509647(v=vs.85).aspx
F Rasterization Rules at http://msdn.microsoft.com/en-us/library/
windows/desktop/cc627092%28v=vs.85%29.aspx
 
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