LYGIA Shader Library

Dependencies:

• lygia/math/powFast.glsl
• lygia/lighting/toShininess.glsl

Check it on Github

#ifndef SPECULAR_POW
#if defined(TARGET_MOBILE) || defined(PLATFORM_RPI) || defined(PLATFORM_WEBGL)
#define SPECULAR_POW(A,B) powFast(A,B)
#else
#define SPECULAR_POW(A,B) pow(A,B)
#endif
#endif

#ifndef FNC_SPECULAR_BLINNPHONG
#define FNC_SPECULAR_BLINNPHONG

// https://github.com/glslify/glsl-specular-blinn-phong
float specularBlinnPhong(const in float NoH, float shininess) {
    return SPECULAR_POW(max(0.0, NoH), shininess);
}

float specularBlinnPhong(ShadingData shadingData) {
    return specularBlinnPhong(shadingData.NoH, shadingData.roughness);
}

float specularBlinnPhongRoughness(ShadingData shadingData) {
    return specularBlinnPhong(shadingData.NoH, toShininess(shadingData.roughness, 0.0));
}

#endif

Dependencies:

• lygia/math/powFast.glsl
• lygia/lighting/toShininess.glsl

Check it on Github

#ifndef SPECULAR_POW
#if defined(TARGET_MOBILE) || defined(PLATFORM_RPI) || defined(PLATFORM_WEBGL)
#define SPECULAR_POW(A,B) powFast(A,B)
#else
#define SPECULAR_POW(A,B) pow(A,B)
#endif
#endif

#ifndef FNC_SPECULAR_BLINNPHONG
#define FNC_SPECULAR_BLINNPHONG

// https://github.com/glslify/glsl-specular-blinn-phong
float specularBlinnPhong(const in float NoH, float shininess) {
    return SPECULAR_POW(max(0.0, NoH), shininess);
}

float specularBlinnPhong(ShadingData shadingData) {
    return specularBlinnPhong(shadingData.NoH, shadingData.roughness);
}

float specularBlinnPhongRoughness(ShadingData shadingData) {
    return specularBlinnPhong(shadingData.NoH, toShininess(shadingData.roughness, 0.0));
}

#endif