POV-Ray : Newsgroups : povray.newusers : large texture usage problems : Re: large texture usage problems Server Time
18 Jul 2024 08:20:09 EDT (-0400)
  Re: large texture usage problems  
From: Alain
Date: 22 Jun 2009 14:15:44
Message: <4a3fca50$1@news.povray.org>

> Hello,
> 
> I wanted to know if anyone had any experience using multiple very large textures
> (> 2GB), and was able too keep povray from running out of memory.  Also, it
> seems like POVRay loads textures to ram on parse - it it possible to keep
> POVRay from loading the entire texture to ram at once?  A performance hit would
> be better than dieing for lack of ram.
> 
> thank you,
> 
> Jacob
> 
> 
The first question is: Do you REALY need such high resolution textures?
Can you do with a smaller resolution? Change from true colours to high 
colours can also help. (it will reduce the file's size by about half)
You may also split your texture file into smaller pieces and only load 
those that you effectively use.

In your case, you probably need to use the 64 bits version, with a 64 
bits OS and a 64 bits CPU and a computer with over 8 Gigs of RAM.

Another way is to use a compressed file format for your textures. If you 
use a BMP, or uncompressed TGA or TIFF, for your texture, changing to 
PNG or JPG can save you some problems, as well as load much faster.


Alain


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