[−][src]Function directx_math::XMMatrixPerspectiveFovLH
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.