CompuServe Messages

Jonas – Thanks for the reply about object alignment – and pleased to meet you! I have the book and CD, and I've already learned a lot from your implementation in CAMTRACK. My problem was actually an extension of your program: in addition to rotating the objects, I wanted to move them to a particular plane parallel to the camera plane, so I had to calulate some displacements as well. And that's where it all came off the tracks, so to speak. The displacements seemed to occur in directions that I didn't expect. I had trouble getting the new "move" function to work for me. I was able to use your approach to rotate the object to face the camera. I then tried to calculate the displacement needed to move the object in the direction of the vector normal to its front face. With this new vector, and the present location of the object, I tried to use the "move" function in the PXP Script Extension. I verified my trigonometry by hand, but somehow, the script didn't give me the expected results, and I wondered if I was missing some subtlety in the "move" function. Any thoughts? Neil McEvoy Eolas Inc. Kingston, Canada..