LYGIA Shader Library

Dependencies:

• lygia/sample.glsl

Use:

<vec4> sampleClamp2edge(<SAMPLER_TYPE> tex, <vec2> st [, <vec2> texResolution]);

Check it on Github

#ifndef FNC_SAMPLECLAMP2EDGE
#define FNC_SAMPLECLAMP2EDGE
vec4 sampleClamp2edge(SAMPLER_TYPE tex, vec2 st, vec2 texResolution) {
    vec2 pixel = 1.0/texResolution;
    return SAMPLER_FNC( tex, clamp(st, pixel, 1.0-pixel) );
}

vec4 sampleClamp2edge(SAMPLER_TYPE tex, vec2 st) { 
    return SAMPLER_FNC( tex, clamp(st, vec2(0.01), vec2(0.99) ) ); 
}

vec4 sampleClamp2edge(SAMPLER_TYPE tex, vec2 st, float edge) { 
    return SAMPLER_FNC( tex, clamp(st, vec2(edge), vec2(1.0 - edge) ) ); 
}
#endif

Dependencies:

• lygia/sample.glsl

Use:

<float4> sampleClamp2edge(<SAMPLER_TYPE> tex, <float2> st [, <float2> texResolution]);

Check it on Github

#ifndef FNC_SAMPLECLAMP2EDGE
#define FNC_SAMPLECLAMP2EDGE
float4 sampleClamp2edge(SAMPLER_TYPE tex, float2 st, float2 texResolution) {
    float2 pixel = 1.0/texResolution;
    return SAMPLER_FNC( tex, clamp(st, pixel, 1.0-pixel) );
}

float4 sampleClamp2edge(SAMPLER_TYPE tex, float2 st) { 
    return SAMPLER_FNC( tex, clamp(st, float2(0.01, 0.01), float2(0.99,0.99) ) ); 
}
#endif