70 lines
1.3 KiB
Plaintext
70 lines
1.3 KiB
Plaintext
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/**
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* Kepler - Core
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* Copyright (c) 2010 kaj dijkstra STUDIOS
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* All rights reserved.
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*/
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/**
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* Author: Kaj Dijksta
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*/
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attribute vec3 position;
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attribute vec2 uv;
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uniform mat4 viewProjection;
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varying vec2 v_textureCoord;
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void main(void) {
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v_textureCoord = uv;
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gl_Position = viewProjection * vec4(position, 1.0);
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}
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// #keplerEngine - Split
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precision highp float;
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uniform sampler2D colorSampler;
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uniform float exposure;
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varying vec2 v_textureCoord;
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vec3 HDR_ACES(const vec3 x) {
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// Narkowicz 2015, "ACES Filmic Tone Mapping Curve"
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const float a = 2.51;
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const float b = 0.03;
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const float c = 2.43;
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const float d = 0.59;
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const float e = 0.14;
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return (x * (a * x + b)) / (x * (c * x + d) + e);
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}
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vec3 tonemap(const vec3 x) {
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return HDR_ACES(x);
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}
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float linearToSRGB(float c) {
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return (c <= 0.0031308) ? c * 12.92 : (pow(abs(c), 1.0 / 2.4) * 1.055) - 0.055;
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}
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vec3 linearToSRGB(vec3 c) {
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return vec3(linearToSRGB(c.r), linearToSRGB(c.g), linearToSRGB(c.b));
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}
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void main() {
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vec3 pbr = texture2D( colorSampler, v_textureCoord ).rgb;
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gl_FragColor = vec4( pbr , 1.0 );
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//pbr.rgb *= exposure;
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//if(v_textureCoord.x < 0.5) {
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// gl_FragColor = vec4( linearToSRGB( tonemap(pbr) ), 1.0 );
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//} else {
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// gl_FragColor = vec4(
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//}
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}
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