35 lines
No EOL
1.2 KiB
HLSL
35 lines
No EOL
1.2 KiB
HLSL
#include "../sampler.hlsl"
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/*
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contributors: Patricio Gonzalez Vivo
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description: sampler shadowMap
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use:
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- sampleShadow(<SAMPLER_TYPE> shadowMap, <float4|float3> _coord)
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- sampleShadow(<SAMPLER_TYPE> shadowMap, <float2> _coord , float compare)
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- sampleShadow(<SAMPLER_TYPE> shadowMap, <float2> _shadowMapSize, <float2> _coord , float compare)
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license:
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- Copyright (c) 2021 Patricio Gonzalez Vivo under Prosperity License - https://prosperitylicense.com/versions/3.0.0
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- Copyright (c) 2021 Patricio Gonzalez Vivo under Patron License - https://lygia.xyz/license
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*/
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#ifndef FNC_SAMPLESHADOW
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#define FNC_SAMPLESHADOW
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float sampleShadow(in SAMPLER_TYPE shadowMap, in float4 _coord) {
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float3 shadowCoord = _coord.xyz / _coord.w;
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return SAMPLER_FNC(shadowMap, shadowCoord.xy).r;
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}
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float sampleShadow(in SAMPLER_TYPE shadowMap, in float3 _coord) {
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return sampleShadow(shadowMap, float4(_coord, 1.0));
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}
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float sampleShadow(in SAMPLER_TYPE shadowMap, in float2 uv, in float compare) {
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return step(compare, SAMPLER_FNC(shadowMap, uv).r );
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}
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float sampleShadow(in SAMPLER_TYPE shadowMap, in float2 size, in float2 uv, in float compare) {
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return sampleShadow(shadowMap, uv, compare);
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}
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#endif |