POV-Ray : Newsgroups : povray.off-topic : MipMap Question : Re: MipMap Question Server Time
3 Sep 2024 21:19:00 EDT (-0400)
  Re: MipMap Question  
From: Slime
Date: 21 Jul 2010 23:08:24
Message: <4c47b628$1@news.povray.org>
> When I turn off mipmaps, I get the usual aliasing/moire problems, but
 > everything looks crisp when I'm not moving. When I turn *on* the mipmap
 > generation for the texture, everything looks a lot more blurry, even up
 > close.

Are you using bilinear, trilinear, or anisotropic filtering? If you're 
looking head-on, then anisotropic won't help, but it still uses the 
highest mip level that has a *lower* resolution than the actual pixels, 
so that it only has to sample once per pixel. This will be most 
noticeable if you're using bilinear and not trilinear.

I guess what I'm saying is that you can expect a *little* blurriness 
from the mip filtering, but not more than one mip level worth.

Screenshots would help to tell if it's normal or not.

  - Slime


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