Function mat4RotateZ

src/math/index.ts:222–226

(m: Mat4, angle: number)

}

export function mat4RotateZ(m: Mat4, angle: number): Mat4 {
  const c = Math.cos(angle), s = Math.sin(angle);
  const rot: Mat4 = [c,s,0,0, -s,c,0,0, 0,0,1,0, 0,0,0,1];
  return mat4Multiply(m, rot);
}

export function mat4Perspective(fovy: number, aspect: number, near: number, far: number): Mat4 {
  const f = 1.0 / Math.tan(fovy / 2);