 |
Author |
Topic: distorted texture mapping? (Read 2498 times) |
|
arielm
|
distorted texture mapping?
« on: Jun 23rd, 2003, 1:20pm » |
|
(still) working on a cube with 6 images mapped on each different face:
however, when i start to move around the cube, i can see that there is a kind of distortion on the mapped-textures!
i guess it is a side-effect of the internal polygon rendering algorithm...
now, i'm using a 4x4 quad patch for each face of the cube: the distortion is almost unoticeable and is not a problem anymore.
i just wanted to know if someone know another workaround for this problem.
thanks!
|
Ariel Malka | www.chronotext.org
|
|
|
fry
|
Re: distorted texture mapping?
« Reply #1 on: Jun 24th, 2003, 9:52pm » |
|
what sort of distortion are you getting? perspective problems or something at specific amounts of rotation?
|
|
|
|
|
arielm
|
Re: distorted texture mapping?
« Reply #3 on: Jun 25th, 2003, 1:32am » |
|
here is a better test-case (it's more obvious to see the dancing texture):
http://www.chronotext.org/processing/quad_patch
note: if you press the mouse button, you'll notice that the deformation disapears (using a 4x4 quad-patch, as a workaround)
|
| « Last Edit: Jun 25th, 2003, 1:51am by arielm » |
|
Ariel Malka | www.chronotext.org
|
|
|
skloopy
|
Re: distorted texture mapping?
« Reply #4 on: Jun 25th, 2003, 2:01am » |
|
You can also see the problem on the on this applet on my site
http://elfman.vendetta.com/ryan
Take a look at the robot's head, if you rotate it it'll distort on one side or the other as it approaches perpendictular to the cameras line of sight. I didn't say anything till now because i thought you guys knew about it..
ryan :^)
Update: I changed my cover page so here's where the robot is now
http://elfman.vendetta.com/ryan/cover/nowar.html
|
| « Last Edit: Aug 21st, 2003, 7:48pm by skloopy » |
|
|
|
|
arielm
|
Re: distorted texture mapping?
« Reply #5 on: Jun 25th, 2003, 11:41am » |
|
well on this particular case, i guess the robot won't be so cute without this small defect 
|
| « Last Edit: Jun 25th, 2003, 12:24pm by arielm » |
|
Ariel Malka | www.chronotext.org
|
|
|
fry
|
Re: distorted texture mapping?
« Reply #6 on: Jun 25th, 2003, 6:35pm » |
|
thanks for the info guys, these are useful for tracking down the problem and testing the fix.
|
|
|
|
|
|
