Method: CGLM::Mat4#project

Defined in:
ext/cglm/rb_cglm_project.c

#project(pos, viewport[, dest]) ⇒ dest | new Vec3

Maps the given object-space coordinates into window coordinates using self as the projection matrix.

  • pos is a Vec3 specifying the object-space coordinates.

  • viewport is a Vec4 specifying the dimensions of the viewport in [x, y, width, height] format.

  • dest is the Vec3 to place the results into, and will be created if omitted.

Returns:



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# File 'ext/cglm/rb_cglm_project.c', line 87

VALUE rb_cglm_project_project(int argc, VALUE *argv, VALUE self) {
  VALUE pos, viewport, dest;
  rb_scan_args(argc, argv, "21", &pos, &viewport, &dest);
  if (NIL_P(dest)) dest = VEC3_NEW(ALLOC_VEC3);
  glm_project(VAL2VEC3(pos), VAL2MAT4(self), VAL2VEC4(viewport), VAL2VEC3(dest));
  return dest;
}