Function gl_utils::camera2d::ndc_2d_to_screen_2d

pub fn ndc_2d_to_screen_2d(
    screen_dimensions: Vector2<u16>, 
    ndc_coord: Point2<f32>
) -> Point2<i16>

Maps OpenGL NDC coordinates to screen coordinates based on a given screen resolution.

Examples

assert_eq!(
  ndc_2d_to_screen_2d (cgmath::vec2 (640, 480), (0.0, 0.0).into()),
  (320, 240).into()
);
assert_eq!(
  ndc_2d_to_screen_2d (cgmath::vec2 (640, 480), (0.5, 0.1).into()),
  (480, 264).into()
);
assert_eq!(
  ndc_2d_to_screen_2d (cgmath::vec2 (640, 480), (-1.0, -1.0).into()),
  (0, 0).into()
);
assert_eq!(
  ndc_2d_to_screen_2d (cgmath::vec2 (640, 480), (-1.0, 1.0).into()),
  (0, 480).into()
);
assert_eq!(
  ndc_2d_to_screen_2d (cgmath::vec2 (640, 480), (1.0, -1.0).into()),
  (640, 0).into()
);
assert_eq!(
  ndc_2d_to_screen_2d (cgmath::vec2 (640, 480), (1.0, 1.0).into()),
  (640, 480).into()
);