Method: CGLM::Vec3#rotate_axis_angle

Defined in:
ext/cglm/rb_cglm_vec3.c

#rotate_axis_angle(axis, angle[, dest]) ⇒ dest | new Vec3

Rotates self around axis (a Vec3) by the specified angle (in radians) using Rodrigues' rotation formula. Places the result into dest and returns dest. Allocates a new Vec3 if dest is omitted.

Returns:



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# File 'ext/cglm/rb_cglm_vec3.c', line 413

VALUE rb_cglm_vec3_rotate_axis_angle(int argc, VALUE *argv, VALUE self) {
  VALUE axis, angle, dest;
  rb_scan_args(argc, argv, "21", &axis, &angle, &dest);
  if (NIL_P(dest)) dest = VEC3_NEW(ALLOC_VEC3);
  memcpy(&VAL2VEC3(dest), &VAL2VEC3(self), sizeof(vec3));
  glm_vec3_rotate(VAL2VEC3(dest), NUM2FLT(angle), VAL2VEC3(axis));
  return dest;
}