import { default } from "https://deno.land/x/threejs_4_deno@v121/src/renderers/shaders/ShaderChunk/tonemapping_pars_fragment.glsl.js";
type
`
#ifndef saturate
// <common> may have defined saturate() already
#define saturate(a) clamp( a, 0.0, 1.0 )
#endif
uniform float toneMappingExposure;
// exposure only
vec3 LinearToneMapping( vec3 color ) {
return toneMappingExposure * color;
}
// source: https://www.cs.utah.edu/~reinhard/cdrom/
vec3 ReinhardToneMapping( vec3 color ) {
color *= toneMappingExposure;
return saturate( color / ( vec3( 1.0 ) + color ) );
}
// source: http://filmicworlds.com/blog/filmic-tonemapping-operators/
vec3 OptimizedCineonToneMapping( vec3 color ) {
// optimized filmic operator by Jim Hejl and Richard Burgess-Dawson
color *= toneMappingExposure;
color = max( vec3( 0.0 ), color - 0.004 );
return pow( ( color * ( 6.2 * color + 0.5 ) ) / ( color * ( 6.2 * color + 1.7 ) + 0.06 ), vec3( 2.2 ) );
}
// source: https://github.com/selfshadow/ltc_code/blob/master/webgl/shaders/ltc/ltc_blit.fs
vec3 RRTAndODTFit( vec3 v ) {
vec3 a = v * ( v + 0.0245786 ) - 0.000090537;
vec3 b = v * ( 0.983729 * v + 0.4329510 ) + 0.238081;
return a / b;
}
// this implementation of ACES is modified to accommodate a brighter viewing environment.
// the scale factor of 1/0.6 is subjective. see discussion in #19621.
vec3 ACESFilmicToneMapping( vec3 color ) {
// sRGB => XYZ => D65_2_D60 => AP1 => RRT_SAT
const mat3 ACESInputMat = mat3(
vec3( 0.59719, 0.07600, 0.02840 ), // transposed from source
vec3( 0.35458, 0.90834, 0.13383 ),
vec3( 0.04823, 0.01566, 0.83777 )
);
// ODT_SAT => XYZ => D60_2_D65 => sRGB
const mat3 ACESOutputMat = mat3(
vec3( 1.60475, -0.10208, -0.00327 ), // transposed from source
vec3( -0.53108, 1.10813, -0.07276 ),
vec3( -0.07367, -0.00605, 1.07602 )
);
color *= toneMappingExposure / 0.6;
color = ACESInputMat * color;
// Apply RRT and ODT
color = RRTAndODTFit( color );
color = ACESOutputMat * color;
// Clamp to [0, 1]
return saturate( color );
}
vec3 CustomToneMapping( vec3 color ) { return color; }
`