LYGIA Shader Library

Dependencies:

• lygia/sample.glsl

Use:

sampleShadow(<SAMPLER_TYPE> shadowMap, <vec4|vec3> _coord)

sampleShadow(<SAMPLER_TYPE> shadowMap, <vec2> _coord , float compare)

sampleShadow(<SAMPLER_TYPE> shadowMap, <vec2> _shadowMapSize, <vec2> _coord , float compare)

Check it on Github

#ifndef SAMPLERSHADOW_FNC
#define SAMPLERSHADOW_FNC(TEX, UV) SAMPLER_FNC(TEX, UV).r
#endif

#ifndef FNC_SAMPLESHADOW
#define FNC_SAMPLESHADOW

float sampleShadow(in SAMPLER_TYPE shadowMap, in vec4 _coord) {
    vec3 shadowCoord = _coord.xyz / _coord.w;
    return SAMPLERSHADOW_FNC(shadowMap, shadowCoord.xy);
}

float sampleShadow(in SAMPLER_TYPE shadowMap, in vec3 _coord) {
    return sampleShadow(shadowMap, vec4(_coord, 1.0));
}

float sampleShadow(in SAMPLER_TYPE shadowMap, in vec2 uv, in float compare) {
    return step(compare, SAMPLERSHADOW_FNC(shadowMap, uv) );
}

float sampleShadow(in SAMPLER_TYPE shadowMap, in vec2 size, in vec2 uv, in float compare) {
    return sampleShadow(shadowMap, uv, compare);
}

#endif

Dependencies:

• lygia/sample.glsl

Use:

sampleShadow(<SAMPLER_TYPE> shadowMap, <float4|float3> _coord)

sampleShadow(<SAMPLER_TYPE> shadowMap, <float2> _coord , float compare)

sampleShadow(<SAMPLER_TYPE> shadowMap, <float2> _shadowMapSize, <float2> _coord , float compare)

Check it on Github

#ifndef FNC_SAMPLESHADOW
#define FNC_SAMPLESHADOW

float sampleShadow(in SAMPLER_TYPE shadowMap, in float4 _coord) {
    float3 shadowCoord = _coord.xyz / _coord.w;
    return SAMPLER_FNC(shadowMap, shadowCoord.xy).r;
}

float sampleShadow(in SAMPLER_TYPE shadowMap, in float3 _coord) {
    return sampleShadow(shadowMap, float4(_coord, 1.0));
}

float sampleShadow(in SAMPLER_TYPE shadowMap, in float2 uv, in float compare) {
    return step(compare, SAMPLER_FNC(shadowMap, uv).r );
}

float sampleShadow(in SAMPLER_TYPE shadowMap, in float2 size, in float2 uv, in float compare) {
    return sampleShadow(shadowMap, uv, compare);
}

#endif