PDA

View Full Version : Image Filtering problem

TheShaddix
05-02-2005, 01:44 AM
-The problem is: i have a road which consists of 3 sets repeating, so instead of having one 7500x2500 texture i separated it in 3 sets (2500x2500 each) and duplicated them many times to make the road look more real, less repetitive. However, without any image filtering it looks way too noisy, and with it-too smooth (losing detail in the texture dramatically) when it's a little further from the camera. The main problem is though that when the road is way too far, it takes a long time to render that very last area (the furthest), and the closest areas take way less time. I dont understand why it would take so long to render one tiny piece, which will be blurred big time anyway. It should be the other way around: the furthest areas should take less time. There is no way i can wait so long for that little piece to render, and at the same time when i disable image filterning it looks like noise. That's the main problem right now.

-how do you control the smoothing of the texture ? I played with the settings but didn't see any difference at all. Is it possible to make the areas close to the camera not be smoothed at all, or not that much, and the furthest ones be completely blurred ???

Thanks in advance.
JDex
05-02-2005, 01:51 AM
Are you talking about elliptical filtering?

If so you should convert your files to pyramidal map files (ideally powers of 4 like 4096x4096)... then the eliptical filtering will get better performace... for a step by step of what to do and what is happening consult the Production Series DVDs (Rendering Concepts I think).
TheShaddix
05-02-2005, 03:27 AM
No , im talking about that filtering that you find when u hit "edit" in the image node. The second tab says "image filtering". What about elliptical filtering though ? How do u enable that ? And is converting jpg and such to MAP the same as checking "convert images to map format" in the render options ?? Please, be more specific on this one.
TheShaddix
05-03-2005, 12:33 AM
any way to get help on this board ???
SheepFactory
05-03-2005, 01:48 AM
any way to get help on this board ???

Maybe try being patient?
zukezuko
05-03-2005, 03:09 AM
image filtering is always slow
jpg is a bad idea,
try jdex way with a tiff or targa
JDex
05-03-2005, 03:59 AM
Shaddix... watch those videos... they describe it alot better than I can.
CGTalk Moderation
05-03-2005, 03:59 AM
This thread has been automatically closed as it remained inactive for 12 months. If you wish to continue the discussion, please create a new thread in the appropriate forum.