CompuServe Thread

Kevin: >> I am tryng to determine if I can get World coordinates, or translate object coordinates to world in sxp extensions using SXPX, SXPY, and SXPZ? Any help would be appreciated. << Unfortunately, SXPs are highly isolated entities in 3D Studio (it's irritating, but that's just the way IPAS is set up). The only way I know how to do what you have in mind is to *transform* the coordinates sent the SXP with the transformation matrix of the object being referenced. For an explanation of transformation matrices, I recommend Alan Watt's "3D Computer Graphics" (Addison Wesley #63186). Jonas Ruikis knows a fair amount about transformations, and he would probably be happy to refer you to specific script examples here on the forum. Once you understand transformation matrices, you'll have to devise a way of getting the transformation information to the SXP script (again, the SXP has no access to scene information, so you have to spoon feed it). I suggest you check out SXPBALL.S3D and SXPBALL.P3D, which are on your TSE shipping disk: they demonstrate embedding relevant scene information from a PXP for later access by an SXP script. Hope this helps. Martin