You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
47 lines
612 B
47 lines
612 B
2 years ago
|
/**
|
||
|
|
* Luminosity
|
||
|
|
* http://en.wikipedia.org/wiki/Luminosity
|
||
|
|
*/
|
||
|
|
|
||
|
|
const LuminosityShader = {
|
||
|
|
|
||
|
|
uniforms: {
|
||
|
|
|
||
|
|
'tDiffuse': { value: null }
|
||
|
|
|
||
|
|
},
|
||
|
|
|
||
|
|
vertexShader: /* glsl */`
|
||
|
|
|
||
|
|
varying vec2 vUv;
|
||
|
|
|
||
|
|
void main() {
|
||
|
|
|
||
|
|
vUv = uv;
|
||
|
|
|
||
|
|
gl_Position = projectionMatrix * modelViewMatrix * vec4( position, 1.0 );
|
||
|
|
|
||
|
|
}`,
|
||
|
|
|
||
|
|
fragmentShader: /* glsl */`
|
||
|
|
|
||
|
|
#include <common>
|
||
|
|
|
||
|
|
uniform sampler2D tDiffuse;
|
||
|
|
|
||
|
|
varying vec2 vUv;
|
||
|
|
|
||
|
|
void main() {
|
||
|
|
|
||
|
|
vec4 texel = texture2D( tDiffuse, vUv );
|
||
|
|
|
||
|
|
float l = linearToRelativeLuminance( texel.rgb );
|
||
|
|
|
||
|
|
gl_FragColor = vec4( l, l, l, texel.w );
|
||
|
|
|
||
|
|
}`
|
||
|
|
|
||
|
|
};
|
||
|
|
|
||
|
|
export { LuminosityShader };
|