LYGIA Shader Library

Dependencies:

• lygia/v1.1.6/color/space/gamma2linear.glsl
• lygia/v1.1.6/sample.glsl

Use:

vec4 materialEmissive()

Check it on Github

#ifndef FNC_MATERIAL_EMISSIVE
#define FNC_MATERIAL_EMISSIVE

#ifdef MATERIAL_EMISSIVEMAP
uniform SAMPLER_TYPE MATERIAL_EMISSIVEMAP;
#endif

vec3 materialEmissive() {
    vec3 emission = vec3(0.0);

#if defined(MATERIAL_EMISSIVEMAP) && defined(MODEL_VERTEX_TEXCOORD)
    vec2 uv = v_texcoord.xy;
    #if defined(MATERIAL_EMISSIVEMAP_OFFSET)
    uv += (MATERIAL_EMISSIVEMAP_OFFSET).xy;
    #endif
    #if defined(MATERIAL_EMISSIVEMAP_SCALE)
    uv *= (MATERIAL_EMISSIVEMAP_SCALE).xy;
    #endif
    emission = gamma2linear( SAMPLER_FNC(MATERIAL_EMISSIVEMAP, uv) ).rgb;

#elif defined(MATERIAL_EMISSIVE)
    emission = MATERIAL_EMISSIVE;
#endif

    return emission;
}

#endif

Dependencies:

• lygia/v1.1.6/color/space/gamma2linear.glsl
• lygia/v1.1.6/sample.glsl

Use:

float4 materialEmissive()

Check it on Github

#ifndef FNC_MATERIAL_EMISSIVE
#define FNC_MATERIAL_EMISSIVE

#ifdef MATERIAL_EMISSIVEMAP
uniform SAMPLER_TYPE MATERIAL_EMISSIVEMAP;
#endif

float3 materialEmissive() {
    float3 emission = float3(0.0, 0.0, 0.0);

#if defined(MATERIAL_EMISSIVEMAP) && defined(MODEL_VERTEX_TEXCOORD)
    float2 uv = v_texcoord.xy;
    #if defined(MATERIAL_EMISSIVEMAP_OFFSET)
    uv += (MATERIAL_EMISSIVEMAP_OFFSET).xy;
    #endif
    #if defined(MATERIAL_EMISSIVEMAP_SCALE)
    uv *= (MATERIAL_EMISSIVEMAP_SCALE).xy;
    #endif
    emission = gamma2linear( SAMPLER_FNC(MATERIAL_EMISSIVEMAP, uv) ).rgb;

#elif defined(MATERIAL_EMISSIVE)
    emission = MATERIAL_EMISSIVE;

#endif

    return emission;
}

#endif