Function openexr::core::envmap::cube_map::face_and_position_in_face_from_direction

pub fn face_and_position_in_face_from_direction<V3: Vec3<f32>, B: Bound2<i32>, V2: Vec2<f32>>(
    direction: &V3, 
    data_window: &B
) -> (CubeMapFace, V2)

Convert a 3D direction into a cube face, and a pixel position within that face.

If you have a 3D direction, dir, the following code fragment finds the position, pos, of the corresponding pixel in an environment map with data window dw:

use openexr::prelude::*;

let dir = [0.0f32, 1.0, 0.0];
let dw = [0, 0, 255, 127];

let (face, position_in_face): (CubeMapFace, [f32; 2]) =
    cube_map::face_and_position_in_face_from_direction(
        &dir,
        &dw
    );
let pos = cube_map::pixel_position_from_position_in_face(
    face,
    &dw,
    position_in_face
);