Microsoft DirectX 8.1 (Visual Basic)

D3DXVec2CatmullRom

Performs a Catmull-Rom interpolation, using the specified 2-D vectors.

D3DXVec2CatmullRom( _ 
    VOut As D3DVECTOR2, _ 
    V0 As D3DVECTOR2, _ 
    V1 As D3DVECTOR2, _ 
    V2 As D3DVECTOR2, _ 
    V3 As D3DVECTOR2, _ 
    s As Single)

Parameters

VOut
D3DVECTOR2 type that is the result of the operation.
V0
D3DVECTOR2 type, a position vector.
V1
D3DVECTOR2 type, a position vector.
V2
D3DVECTOR2 type, a position vector.
V3
D3DVECTOR2 type, a position vector.
s
Weighting factor. See Remarks.

Error Codes

If the function fails, an error is raised and Err.Number can be set to one of the following values.

D3DERR_INVALIDCALL
D3DERR_OUTOFVIDEOMEMORY

For information on trapping errors, see the Microsoft® Visual Basic® Error Handling topic.

Remarks

The D3DXVec2CatmullRom function interpolates between the position V1 when s is equal to 0, and between the position V2 when s is equal to 1, using Catmull-Rom interpolation.