three-stdlib/shaders/MirrorShader.cjs

stand-alone library of threejs examples

"use strict";
Object.defineProperty(exports, Symbol.toStringTag, { value: "Module" });
const 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")
};
exports.MirrorShader = MirrorShader;
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