POV-Ray : Newsgroups : povray.newusers : Keep parse file ? : Re: Keep parse file ? Server Time
28 Jul 2024 14:33:30 EDT (-0400)
  Re: Keep parse file ?  
From: Alain
Date: 4 Feb 2009 17:56:27
Message: <498a1d1b$1@news.povray.org>
Grobi nous illumina en ce 2009-02-04 05:33 -->
> Hi !
> 
> for a given scene the parsing takes a lot more time than rendering.
> 
> Is there a way to keep the parsed information to use with e.g. another
> resolution render ?
> 
> thanks
> 
>  Andreas
> 
> 
It all depend on what is causing the parsing to take lot of time.

If it's calculating data, writing them to a file is the way to go.

If it's due to large images files to be used as image_map, bump_map or 
height_fields, try using one or some of the following:
Use another file format as the source. If you use a BMP or TGA, convert it to a 
PNG. Smaler files load faster. The time saving from loading compressed files can 
be much more importent than the extra time required to process them.
Try using a smaler resolution for the image(s), or one with a smaler colour 
range. You don't always need the full resolution or colour depth. It all depends 
on your particuliar needs.

Does the parsing start fast, then slows down to a crawl, while you can notice A 
LOT of disk activity?
This point to your RAM geting full and the system starting swaping/paging the 
data to the disk drive. Install as much RAM as your computer can hold. If you 
have a system with an integrated video, try reducing the memory alocated to the 
video. POV-Ray don't use the video processor nor the video memory.

-- 
Alain
-------------------------------------------------
You know you've been raytracing too long when...
you ever saw a beautiful scenery and regretted not to take your 6" reflective 
ball and a digital camera, thinking "this would have been a perfect light probe"
         -Johnny D


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