Press n or j to go to the next uncovered block, b, p or k for the previous block.
| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 | 276x 276x 276x | import { vec3 } from 'gl-matrix';
/**
* Reflects a vector `v` over a given normal vector.
*
* @param v - The vector to reflect.
* @param normal - The normal vector to reflect over.
* @returns The reflected vector.
*/
export function reflectVector(v: vec3, normal: vec3): vec3 {
const dotProduct = vec3.dot(v, normal);
const scaledNormal = vec3.scale(vec3.create(), normal, 2 * dotProduct);
return vec3.sub(vec3.create(), v, scaledNormal);
}
|