Improve brush

src/utils/catmull-rom-interpolation.ts

@@ -1,28 +0,0 @@
-import { vec2 } from 'gl-matrix';
-
-export const catmullRomInterpolation = (
-  p0: vec2,
-  p1: vec2,
-  p2: vec2,
-  p3: vec2,
-  t: number
-): vec2 => {
-  const t2 = t * t;
-  const t3 = t2 * t;
-
-  const x =
-    0.5 *
-    (2 * p1[0] +
-      (-p0[0] + p2[0]) * t +
-      (2 * p0[0] - 5 * p1[0] + 4 * p2[0] - p3[0]) * t2 +
-      (-p0[0] + 3 * p1[0] - 3 * p2[0] + p3[0]) * t3);
-
-  const y =
-    0.5 *
-    (2 * p1[1] +
-      (-p0[1] + p2[1]) * t +
-      (2 * p0[1] - 5 * p1[1] + 4 * p2[1] - p3[1]) * t2 +
-      (-p0[1] + 3 * p1[1] - 3 * p2[1] + p3[1]) * t3);
-
-  return [x, y];
-};