7869b080d3
Doesn't ruin the "greater or equal" depth test in subsequent rendering passes if precision is lost, unlike rounding to the nearest
18 lines
622 B
HLSL
18 lines
622 B
HLSL
#include "pixel_formats.xesli"
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#include "xenos_draw.hlsli"
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struct XePSInput {
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XeVertexPrePS pre_ps;
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sample float4 position : SV_Position;
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};
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precise float main(XePSInput xe_input) : SV_Depth {
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// Input Z may be outside the viewport range (it's clamped after the shader).
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// Assuming that 0...0.5 on the host corresponds to 0...1 on the guest, to
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// allow for safe reinterpretation of any 24-bit value to and from float24
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// depth using depth output without unrestricted depth range.
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return asfloat(XeFloat20e4To32(
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XeFloat32To20e4(asuint(saturate(xe_input.position.z * 2.0f)), true),
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true));
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}
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