Function ultraviolet::projection::lh_ydown::perspective_reversed_z_dx_gl

pub fn perspective_reversed_z_dx_gl(
    vertical_fov: f32, 
    aspect_ratio: f32, 
    z_near: f32, 
    z_far: f32
) -> Mat4

Perspective projection matrix with reversed z-axis meant to be used with DirectX or OpenGL.

Reversed-Z provides significantly better precision and therefore reduced z-fighting for most depth situations, especially when a floating-point depth buffer is used. You'll want to use a reversed depth comparison function and depth clear value when using this projection.

• vertical_fov should be provided in radians.
• aspect_ratio should be the quotient width / height.

This matrix is meant to be used when the source coordinate space is left-handed and y-down (the standard computer graphics coordinate space) and the destination coordinate space is left-handed and y-up with Z (depth) clip extending from 0.0 (close) to 1.0 (far).

Note that in order for this to work properly with OpenGL, you'll need to use the gl_arb_clip_control extension and set the z clip from 0.0 to 1.0 rather than the default -1.0 to 1.0