POV-Ray : Newsgroups : povray.general : How to speed up rendering? : Re: How to speed up rendering? Server Time
12 Aug 2024 19:38:56 EDT (-0400)
  Re: How to speed up rendering?  
From: Spider
Date: 17 Jan 1999 15:25:12
Message: <36A24631.E4BB913B@bahnhof.se>
Comments to you Ken.
> 
> Don't use refection in your finish statement.
*point* *grin* 

> Don't use any objects that require csg operations.
The more so, use union instead of merge where possible, it's faster, can be done in
testing..
Difference is slowwwww...

> Don't use any high order polynominal objects.
If I don't understand them, I don't use them ???

> Don't use filter or transmit in your pigments.
Agree..

> Don't use media or fog.
Absolutely not...

> Don't use while loops.
Do this, but if you want to speed it up before final render, do an output to a file.
wether using the #debug or #fwrite is up to you, but it will reduce parsing a lot.
Same for #if and #switch

> Don't have more than a couple of objects in your scene.
When working, use a #if(fast=true) opbject { small_easy_thing_to_render } #else object
{
huge_memory_hog_that_looks_good_or_needs_work } #end

> Don't use layered testures and pigments.
See comment about #if for advanced objects

> Don't use area lights.
theese are huge...

> Don't have radiosity turned on.
Never...

> 
> Basicaly render solid colored spheres sitting on a solid
> colored plane with only one light source.
yeah... or without the light with ambient 1 .....

 
> Or buy a faster computer you CHEAPO !!!
hmm.... well.... Get a quad alpha system or something.... *grin*


More..
If you have a scene that needs to swap(paging-file), make sure you defragment  your
swap
file...

in win95/98 :
1	Defrag the hdd with the swap file on.
2	remove all startup programs from windows.
3	go to control panel->system->performance->virtual memory
	3.5	disable virtual memory.
4	reboot to DOS
	4.5	remove any .swp files in C:\windows or c:\
5	reboot to windows
6	defrag your hdd again
7	set the virtual memory to "own settings" - Min=40Mb(more if you think you'll need
it)-
-Max=300 (depends on free space)-
8	reboot
9	Restore all you startup programs
10	reboot.

This will make the swap file less defragmented, and will make it a bit faster if you
have
a scene that requires swapping... It's generally a good idea to defrag your hdd once a
week or something like that if you add/remove a lot o files.

//Spider


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