Talk:3D projection
From Wikipedia, the free encyclopedia
I think, the "Third step: perspective transform" is very hard to understand. It actually lacks explanations of how the formulas/projection matrix are created! The simplified version does not help about this issue, as here the formulas are missing as well, so you cannot conclude from the simple version to the projection matrix. Flipflix 19:07, 20 January 2007 (UTC)
 |
3D projection has had a peer review by Wikipedia editors which is now archived. It may contain ideas you can use to improve this article. |
[edit] 1/tan = cot
Sorry, i changed the perspective disortion representation matrix a little bit, because i wanted to print it this way. If it's uncommon in computer graphics to use cot instead of 
then i'll change it back.
please explain!
[edit] Projection onto 2D plane needs to explained more
I've been looking at the "simple version" of the projection onto a 2D plane and I don't understand why you say DX/DY is the distance on the XY plane and then give the two equations with the partial differentials in them without explaining how to get them from the distance formula. —The preceding unsigned comment was added by Maxvt103 (talk • contribs) 18:09, 18 February 2007 (UTC).
[edit] Field of view
Under the heading "Third step: perspective transform" the parameters mu and nu are introduced. Is it appropriate to say that these parameters refer to the camera's "field of view"? If so, it would be helpful to mention that and link to the field of view article. —The preceding unsigned comment was added by Alexdow (talk • contribs) 19:51, 21 February 2007 (UTC).
