LYGIA Shader Library

Dependencies:

• lygia/sampler.glsl
• lygia/filter/gaussianBlur/2D.glsl
• lygia/filter/gaussianBlur/1D.glsl
• lygia/filter/gaussianBlur/1D_fast13.glsl
• lygia/filter/gaussianBlur/1D_fast9.glsl
• lygia/filter/gaussianBlur/1D_fast5.glsl

Use:

gaussianBlur(<SAMPLER_TYPE> texture, <vec2> st, <vec2> pixel_direction [, const int kernelSize])

Check it on Github

#ifndef GAUSSIANBLUR_AMOUNT
#define GAUSSIANBLUR_AMOUNT gaussianBlur13
#endif

#ifndef GAUSSIANBLUR_TYPE
#define GAUSSIANBLUR_TYPE vec4
#endif

#ifndef GAUSSIANBLUR_SAMPLER_FNC
#define GAUSSIANBLUR_SAMPLER_FNC(TEX, UV) SAMPLER_FNC(TEX, UV)
#endif


#ifndef FNC_GAUSSIANBLUR
#define FNC_GAUSSIANBLUR
GAUSSIANBLUR_TYPE gaussianBlur13(in SAMPLER_TYPE tex, in vec2 st, in vec2 offset) {
#ifdef GAUSSIANBLUR_2D
    return gaussianBlur2D(tex, st, offset, 7);
#else
    return gaussianBlur1D_fast13(tex, st, offset);
#endif
}

GAUSSIANBLUR_TYPE gaussianBlur9(in SAMPLER_TYPE tex, in vec2 st, in vec2 offset) {
#ifdef GAUSSIANBLUR_2D
    return gaussianBlur2D(tex, st, offset, 5);
#else
    return gaussianBlur1D_fast9(tex, st, offset);
#endif
}

GAUSSIANBLUR_TYPE gaussianBlur5(in SAMPLER_TYPE tex, in vec2 st, in vec2 offset) {
#ifdef GAUSSIANBLUR_2D
    return gaussianBlur2D(tex, st, offset, 3);
#else
    return gaussianBlur1D_fast5(tex, st, offset);
#endif
}

GAUSSIANBLUR_TYPE gaussianBlur(in SAMPLER_TYPE tex, in vec2 st, in vec2 offset, const int kernelSize) {
#ifdef GAUSSIANBLUR_2D
    return gaussianBlur2D(tex, st, offset, kernelSize);
#else
    return gaussianBlur1D(tex, st, offset, kernelSize);
#endif
}

GAUSSIANBLUR_TYPE gaussianBlur(in SAMPLER_TYPE tex, in vec2 st, in vec2 offset) {
    return GAUSSIANBLUR_AMOUNT(tex, st, offset);
}
#endif

Dependencies:

• lygia/sampler.glsl
• lygia/filter/gaussianBlur/2D.glsl
• lygia/filter/gaussianBlur/1D.glsl
• lygia/filter/gaussianBlur/1D_fast13.glsl
• lygia/filter/gaussianBlur/1D_fast9.glsl
• lygia/filter/gaussianBlur/1D_fast5.glsl

Use:

gaussianBlur(<SAMPLER_TYPE> texture, <float2> st, <float2> pixel_direction [, const int kernelSize])

Check it on Github

#ifndef GAUSSIANBLUR_AMOUNT
#define GAUSSIANBLUR_AMOUNT gaussianBlur13
#endif

#ifndef GAUSSIANBLUR_TYPE
#define GAUSSIANBLUR_TYPE float4
#endif

#ifndef GAUSSIANBLUR_SAMPLER_FNC
#define GAUSSIANBLUR_SAMPLER_FNC(TEX, UV) SAMPLER_FNC(TEX, UV)
#endif


#ifndef FNC_GAUSSIANBLUR
#define FNC_GAUSSIANBLUR
GAUSSIANBLUR_TYPE gaussianBlur13(in SAMPLER_TYPE tex, in float2 st, in float2 offset) {
#ifdef GAUSSIANBLUR_2D
    return gaussianBlur2D(tex, st, offset, 7);
#else
    return gaussianBlur1D_fast13(tex, st, offset);
#endif
}

GAUSSIANBLUR_TYPE gaussianBlur9(in SAMPLER_TYPE tex, in float2 st, in float2 offset) {
#ifdef GAUSSIANBLUR_2D
    return gaussianBlur2D(tex, st, offset, 5);
#else
    return gaussianBlur1D_fast9(tex, st, offset);
#endif
}

GAUSSIANBLUR_TYPE gaussianBlur5(in SAMPLER_TYPE tex, in float2 st, in float2 offset) {
#ifdef GAUSSIANBLUR_2D
    return gaussianBlur2D(tex, st, offset, 3);
#else
    return gaussianBlur1D_fast5(tex, st, offset);
#endif
}

GAUSSIANBLUR_TYPE gaussianBlur(in SAMPLER_TYPE tex, in float2 st, in float2 offset, const int kernelSize) {
#ifdef GAUSSIANBLUR_2D
    return gaussianBlur2D(tex, st, offset, kernelSize);
#else
    return gaussianBlur1D(tex, st, offset, kernelSize);
#endif
}

GAUSSIANBLUR_TYPE gaussianBlur(in SAMPLER_TYPE tex, in float2 st, in float2 offset) {
    return GAUSSIANBLUR_AMOUNT(tex, st, offset);
}
#endif