Microsoft DirectX 8.0 (C++) |
Builds a customized, left-handed orthogonal projection matrix.
D3DXMATRIX* D3DXMatrixOrthoOffCenterLH( D3DXMATRIX* pOut, FLOAT l, FLOAT r, FLOAT t, FLOAT b, FLOAT zn, FLOAT zf );
Pointer to a D3DXMATRIX structure that is a customized, left-handed orthogonal projection matrix.
An orthogonal matrix is an invertible matrix for which the inverse of the matrix is equal to the transpose of the matrix.
The D3DXMatrixOrthoLH function is a special case of the D3DXMatrixOrthoOffCenterLH function. To create the same projection using D3DXMatrixOrthoOffCenterLH, use the following values: l = -w/2, r = w/2, b = -h/2, and t = h/2.
All the parameters of the D3DXMatrixOrthoOffCenterLH function are distances in camera-space. The parameters describe the dimensions of the view-volume.
The return value for this function is the same value returned in the pOut parameter. In this way, the D3DXMatrixOrthoOffCenterLH function can be used as a parameter for another function.
Header: Declared in D3dx8math.h.
Import Library: Use D3dx8.lib.
D3DXMatrixOrthoRH, D3DXMatrixOrthoLH, D3DXMatrixOrthoOffCenterRH