D3DXComputeBoundingSphere Function

Computes a bounding sphere for the mesh.

Syntax

HRESULT D3DXComputeBoundingSphere(      

    LPD3DXVECTOR3 pFirstPosition,
    DWORD NumVertices,
    DWORD dwStride,
    D3DXVECTOR3 *pCenter,
    FLOAT *pRadius
);

Parameters

pFirstPosition

[in] Pointer to first position.

NumVertices

[in] Number of vertices.

dwStride

[in] Number of bytes between position vectors. Use D3DXGetFVFVertexSize to get the stride for a flexible vertex format (FVF).

pCenter

[out] D3DXVECTOR3 structure, defining the coordinate center of the returned bounding sphere.

pRadius

[out] Radius of the returned bounding sphere.

Return Value

If the function succeeds, the return value is D3D_OK.

If the function fails, the return value can be

D3DERR_INVALIDCALL

The method call is invalid. For example, a method's parameter may have an invalid value.

Function Information

Header	d3dx9mesh.h
Import library	d3dx9.lib
Minimum operating systems	Windows 98