39 lines
No EOL
1.3 KiB
GLSL
39 lines
No EOL
1.3 KiB
GLSL
#include "../sampler.glsl"
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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, <vec4|vec3> _coord)
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- sampleShadow(<SAMPLER_TYPE> shadowMap, <vec2> _coord , float compare)
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- sampleShadow(<SAMPLER_TYPE> shadowMap, <vec2> _shadowMapSize, <vec2> _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 SAMPLERSHADOW_FNC
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#define SAMPLERSHADOW_FNC(TEX, UV) SAMPLER_FNC(TEX, UV).r
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#endif
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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 vec4 _coord) {
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vec3 shadowCoord = _coord.xyz / _coord.w;
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return SAMPLERSHADOW_FNC(shadowMap, shadowCoord.xy);
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}
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float sampleShadow(in SAMPLER_TYPE shadowMap, in vec3 _coord) {
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return sampleShadow(shadowMap, vec4(_coord, 1.0));
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}
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float sampleShadow(in SAMPLER_TYPE shadowMap, in vec2 uv, in float compare) {
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return step(compare, SAMPLERSHADOW_FNC(shadowMap, uv) );
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}
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float sampleShadow(in SAMPLER_TYPE shadowMap, in vec2 size, in vec2 uv, in float compare) {
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return sampleShadow(shadowMap, uv, compare);
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}
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#endif |