mirror of
https://gitlab.winehq.org/wine/vkd3d.git
synced 2024-11-21 16:46:41 -08:00
79 lines
1.8 KiB
Plaintext
79 lines
1.8 KiB
Plaintext
% Testing equality comparison is a bit tricky here. The alpha test ref is
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% fed through a UNORM in d3d, so we can only pass a value that's a multiple of
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% 1/255 from 0 to 1. While we can quantize to an integer from 0-255, dividing
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% back down by 255 yields slightly inconsistent results. Fortunately, testing
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% 1.0 works and is a lot more reliable.
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[require]
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shader model < 4.0
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[vertex shader]
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void main(inout float4 pos : position, out float alpha : texcoord)
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{
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alpha = pos.x;
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}
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[pixel shader]
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float4 main(float alpha : texcoord) : sv_target
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{
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return float4(0, 1, 0, floor((alpha + 1) * 2 + 0.5) / 2);
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}
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[test]
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alpha test always
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clear rtv 0 1 0 0 1
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draw quad
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probe (160, 0) rgba (0, 1, 0, 0.5)
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probe (320, 0) rgba (0, 1, 0, 1.0)
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probe (480, 0) rgba (0, 1, 0, 1.5)
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alpha test equal 1.0
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clear rtv 0 1 0 0 1
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draw quad
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probe (160, 0) rgba (1, 0, 0, 1)
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probe (320, 0) rgba (0, 1, 0, 1.0)
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probe (480, 0) rgba (1, 0, 0, 1)
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alpha test not equal 1.0
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clear rtv 0 1 0 0 1
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draw quad
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probe (160, 0) rgba (0, 1, 0, 0.5)
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probe (320, 0) rgba (1, 0, 0, 1)
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probe (480, 0) rgba (0, 1, 0, 1.5)
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alpha test greater 1.0
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clear rtv 0 1 0 0 1
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draw quad
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probe (160, 0) rgba (1, 0, 0, 1)
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probe (320, 0) rgba (1, 0, 0, 1)
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probe (480, 0) rgba (0, 1, 0, 1.5)
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alpha test greater equal 1.0
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clear rtv 0 1 0 0 1
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draw quad
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probe (160, 0) rgba (1, 0, 0, 1)
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probe (320, 0) rgba (0, 1, 0, 1.0)
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probe (480, 0) rgba (0, 1, 0, 1.5)
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alpha test less equal 1.0
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clear rtv 0 1 0 0 1
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draw quad
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probe (160, 0) rgba (0, 1, 0, 0.5)
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probe (320, 0) rgba (0, 1, 0, 1.0)
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probe (480, 0) rgba (1, 0, 0, 1)
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alpha test less 1.0
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clear rtv 0 1 0 0 1
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draw quad
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probe (160, 0) rgba (0, 1, 0, 0.5)
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probe (320, 0) rgba (1, 0, 0, 1)
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probe (480, 0) rgba (1, 0, 0, 1)
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alpha test never
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clear rtv 0 1 0 0 1
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draw quad
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probe (160, 0) rgba (1, 0, 0, 1)
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probe (320, 0) rgba (1, 0, 0, 1)
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probe (480, 0) rgba (1, 0, 0, 1)
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