50 lines
905 B
JavaScript
50 lines
905 B
JavaScript
const BrightnessContrastShader = {
|
|
uniforms: {
|
|
tDiffuse: { value: null },
|
|
brightness: { value: 0 },
|
|
contrast: { value: 0 }
|
|
},
|
|
vertexShader: (
|
|
/* glsl */
|
|
`
|
|
varying vec2 vUv;
|
|
|
|
void main() {
|
|
|
|
vUv = uv;
|
|
|
|
gl_Position = projectionMatrix * modelViewMatrix * vec4( position, 1.0 );
|
|
|
|
}
|
|
`
|
|
),
|
|
fragmentShader: (
|
|
/* glsl */
|
|
`
|
|
uniform sampler2D tDiffuse;
|
|
uniform float brightness;
|
|
uniform float contrast;
|
|
|
|
varying vec2 vUv;
|
|
|
|
void main() {
|
|
|
|
gl_FragColor = texture2D( tDiffuse, vUv );
|
|
|
|
gl_FragColor.rgb += brightness;
|
|
|
|
if (contrast > 0.0) {
|
|
gl_FragColor.rgb = (gl_FragColor.rgb - 0.5) / (1.0 - contrast) + 0.5;
|
|
} else {
|
|
gl_FragColor.rgb = (gl_FragColor.rgb - 0.5) * (1.0 + contrast) + 0.5;
|
|
}
|
|
|
|
}
|
|
`
|
|
)
|
|
};
|
|
export {
|
|
BrightnessContrastShader
|
|
};
|
|
//# sourceMappingURL=BrightnessContrastShader.js.map
|