Microsoft DirectX 8.1 (Visual Basic)

D3DX8.Intersect

Determines if a ray intersects with a mesh.

object.Intersect( _ 
    MeshIn As D3DXMesh, _ 
    RayPos As D3DVECTOR, _ 
    RayDir As D3DVECTOR, _ 
    retHit As Long, _ 
    retFaceIndex As Long, _ 
    retU As Single, _ 
    retV As Single, _ 
    retDist As Single)

Parts

object: Object expression that resolves to a D3DX8 object.
MeshIn: D3DXMesh object, representing the mesh to be tested.
RayPos: D3DVECTOR type, specifying the origin coordinate of the ray.
RayDir: D3DVECTOR type, specifying the direction of the ray.
retHit: If the ray intersects a triangular face on the mesh, this value is set to 1. Otherwise, this value is set to 0.
retFaceIndex: Index value of the face closest to the ray origin, if retHit is 1.
retU: Barycentric hit coordinate.
retV: Barycentric hit coordinate.
retDist: Ray intersection parameter distance.

Error Codes

If the method fails, an error is raised and Err.Number can be set to E_OUTOFMEMORY.

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