@arcgis/core/views/3d/webgl-engine/shaders/ToneMapping.glsl.js

ArcGIS Maps SDK for JavaScript: A complete 2D and 3D mapping and data visualization API

/* COPYRIGHT Esri - https://js.arcgis.com/5.0.8/LICENSE.txt */
import{glsl as o}from"../core/shaderModules/glsl.js";function e(e){e.code.add(o`vec3 tonemapACES(vec3 x) {
return clamp((x * (2.51 * x + 0.03)) / (x * (2.43 * x + 0.59) + 0.14), 0.0, 1.0);
}`),e.code.add(o`vec3 tonemapKhronosNeutral(vec3 color, float exposure) {
const float startCompression = 0.76;
const float desaturation = 0.15;
color *= exposure;
float x = min( color.r, min( color.g, color.b ) );
float offset = x < 0.08 ? x - 6.25 * x * x : 0.04;
color -= offset;
float peak = max( color.r, max( color.g, color.b ) );
if ( peak < startCompression ) {
return color;
}
float d = 1.0 - startCompression;
float newPeak = 1.0 - d * d / ( peak + d - startCompression );
color *= newPeak / peak;
float g = 1.0 - 1.0 / ( desaturation * ( peak - newPeak ) + 1.0 );
return mix( color, vec3( newPeak ), g );
}`)}export{e as ToneMapping};