Function directx_math::XMMatrixPerspectiveLH

pub fn XMMatrixPerspectiveLH(
    ViewWidth: f32, 
    ViewHeight: f32, 
    NearZ: f32, 
    FarZ: f32
) -> XMMATRIX

Builds a left-handed perspective projection matrix.

Parameters

ViewWidth Width of the frustum at the near clipping plane.

ViewHeight Height of the frustum at the near clipping plane.

NearZ Distance to the near clipping plane. Must be greater than zero.

FarZ Distance to the far clipping plane. Must be greater than zero.

Return value

Returns the perspective projection matrix.

Remarks

For typical usage, NearZ is less than FarZ. However, if you flip these values so FarZ is less than NearZ, the result is an inverted z buffer which can provide increased floating-point precision. NearZ and FarZ cannot be the same value.

Reference

https://docs.microsoft.com/en-us/windows/win32/api/directxmath/nf-directxmath-XMMatrixPerspectiveLH