three
Version:
JavaScript 3D library
58 lines (39 loc) • 1.26 kB
JavaScript
console.warn( "THREE.MirrorShader: As part of the transition to ES6 Modules, the files in 'examples/js' were deprecated in May 2020 (r117) and will be deleted in December 2020 (r124). You can find more information about developing using ES6 Modules in https://threejs.org/docs/#manual/en/introduction/Installation." );
/**
* Mirror Shader
* Copies half the input to the other half
*
* side: side of input to mirror (0 = left, 1 = right, 2 = top, 3 = bottom)
*/
THREE.MirrorShader = {
uniforms: {
"tDiffuse": { value: null },
"side": { value: 1 }
},
vertexShader: [
"varying vec2 vUv;",
"void main() {",
" vUv = uv;",
" gl_Position = projectionMatrix * modelViewMatrix * vec4( position, 1.0 );",
"}"
].join( "\n" ),
fragmentShader: [
"uniform sampler2D tDiffuse;",
"uniform int side;",
"varying vec2 vUv;",
"void main() {",
" vec2 p = vUv;",
" if (side == 0){",
" if (p.x > 0.5) p.x = 1.0 - p.x;",
" }else if (side == 1){",
" if (p.x < 0.5) p.x = 1.0 - p.x;",
" }else if (side == 2){",
" if (p.y < 0.5) p.y = 1.0 - p.y;",
" }else if (side == 3){",
" if (p.y > 0.5) p.y = 1.0 - p.y;",
" } ",
" vec4 color = texture2D(tDiffuse, p);",
" gl_FragColor = color;",
"}"
].join( "\n" )
};