Function directx_math::XMMatrixPerspectiveFovLH [−][src]
pub fn XMMatrixPerspectiveFovLH(
FovAngleY: f32,
AspectRatio: f32,
NearZ: f32,
FarZ: f32
) -> XMMATRIX
Builds a left-handed perspective projection matrix based on a field of view.
Parameters
FovAngleY Top-down field-of-view angle in radians.
AspectRatio Aspect ratio of view-space X:Y.
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.