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[READ-ONLY] Mirror of https://github.com/flo-bit/shapecraft. flo-bit.dev/shapecraft
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799 B · 33 lines
JavaScript
at commit da69385e
12345678910111213141516171819202122232425262728293031323334import TempNode from '../core/TempNode.js';import { transformedNormalView } from '../accessors/Normal.js';import { positionViewDirection } from '../accessors/Position.js';import { nodeImmutable, vec2, vec3 } from '../tsl/TSLBase.js';
class MatcapUVNode extends TempNode {
static get type() {
return 'MatcapUVNode';
}
constructor() {
super( 'vec2' );
}
setup() {
const x = vec3( positionViewDirection.z, 0, positionViewDirection.x.negate() ).normalize(); const y = positionViewDirection.cross( x );
return vec2( x.dot( transformedNormalView ), y.dot( transformedNormalView ) ).mul( 0.495 ).add( 0.5 ); // 0.495 to remove artifacts caused by undersized matcap disks
}
}
export default MatcapUVNode;
export const matcapUV = /*@__PURE__*/ nodeImmutable( MatcapUVNode );