Function nalgebra_glm::unproject_zo

pub fn unproject_zo<N: Real>(
    win: &TVec3<N>, 
    model: &TMat4<N>, 
    proj: &TMat4<N>, 
    viewport: TVec4<N>
) -> TVec3<N>

Map the specified window coordinates (win.x, win.y, win.z) into object coordinates.

The near and far clip planes correspond to z normalized device coordinates of 0 and +1 respectively. (Direct3D clip volume definition)

Parameters

* `obj`: Specify the window coordinates to be mapped.
* `model`: Specifies the current modelview matrix.
* `proj`: Specifies the current projection matrix.
* `viewport`: Specifies the current viewport.