LYGIA Shader Library

tonemap (lygia/color/tonemap)

Tone maps the specified RGB color (meaning convert from HDR to LDR) inside the range [0..~8] to [0..1]. The input must be in linear HDR pre-exposed.

Dependencies:

Use:

tonemap(<vec3|vec4> rgb)

Check it on Github



#ifndef TONEMAP_FNC
#if defined(TARGET_MOBILE) || defined(PLATFORM_RPI)
    #define TONEMAP_FNC     tonemapUnreal
#else
    // #define TONEMAP_FNC     tonemapDebug
    // #define TONEMAP_FNC     tonemapFilmic
    // #define TONEMAP_FNC     tonemapACES
    // #define TONEMAP_FNC     tonemapUncharted2
    // #define TONEMAP_FNC     tonemapUncharted
    #define TONEMAP_FNC     tonemapReinhardJodie
    // #define TONEMAP_FNC     tonemapReinhard
    // #define TONEMAP_FNC     tonemapUnreal
    // #define TONEMAP_FNC     tonemapLinear
#endif
#endif

#ifndef FNC_TONEMAP
#define FNC_TONEMAP

vec3 tonemap(const vec3 v) { return TONEMAP_FNC(v); }
vec4 tonemap(const vec4 v) { return TONEMAP_FNC(v); }

#endif

Dependencies:

Use:

tonemap(<float3|float4> rgb)

Check it on Github



#ifndef TONEMAP_FNC
#if defined(TARGET_MOBILE) || defined(PLATFORM_RPI) || defined(PLATFORM_WEBGL)
    #define TONEMAP_FNC     tonemapUnreal
#else
    // #define TONEMAP_FNC     tonemapDebug
    // #define TONEMAP_FNC     tonemapFilmic
    // #define TONEMAP_FNC     tonemapACES
    // #define TONEMAP_FNC     tonemapUncharted2
    // #define TONEMAP_FNC     tonemapUncharted
    #define TONEMAP_FNC     tonemapReinhardJodie
    // #define TONEMAP_FNC     tonemapReinhard
    // #define TONEMAP_FNC     tonemapUnreal
    // #define TONEMAP_FNC     tonemapLinear
#endif
#endif

#ifndef FNC_TONEMAP
#define FNC_TONEMAP

float3 tonemap(const float3 color) { return TONEMAP_FNC(color); }
float4 tonemap(const float4 color) { return TONEMAP_FNC(color); }

#endif

Licenses

LYGIA is dual-licensed under the Prosperity License and the Patron License for sponsors and contributors.

Sponsors and contributors are automatically added to the Patron License and they can ignore the any non-commercial rule of the Prosperity Licensed software (please take a look to the exception).

It's also possible to get a permanent comercial license hook to a single and specific version of LYGIA.

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