48 lines
1.0 KiB
JavaScript
48 lines
1.0 KiB
JavaScript
import { Vector2 } from "three";
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const NormalMapShader = {
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uniforms: {
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heightMap: { value: null },
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resolution: { value: /* @__PURE__ */ new Vector2(512, 512) },
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scale: { value: /* @__PURE__ */ new Vector2(1, 1) },
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height: { value: 0.05 }
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},
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vertexShader: (
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/* glsl */
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`
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varying vec2 vUv;
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void main() {
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vUv = uv;
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gl_Position = projectionMatrix * modelViewMatrix * vec4( position, 1.0 );
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}
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`
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),
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fragmentShader: (
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/* glsl */
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`
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uniform float height;
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uniform vec2 resolution;
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uniform sampler2D heightMap;
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varying vec2 vUv;
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void main() {
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float val = texture2D( heightMap, vUv ).x;
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float valU = texture2D( heightMap, vUv + vec2( 1.0 / resolution.x, 0.0 ) ).x;
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float valV = texture2D( heightMap, vUv + vec2( 0.0, 1.0 / resolution.y ) ).x;
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gl_FragColor = vec4( ( 0.5 * normalize( vec3( val - valU, val - valV, height ) ) + 0.5 ), 1.0 );
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}
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`
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)
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};
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export {
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NormalMapShader
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};
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//# sourceMappingURL=NormalMapShader.js.map
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