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View Full Version : Faked or Optimized Radiosity? Which is better?



jesblood
07-10-2013, 06:20 PM
Hi all,

I'm running on Lw 10.1. I'm trying to find ways to speed up my Radiosity calculations. Does anyone have any suggestions or now of any great tutorials out there? My company is making a mobile game and having to stop and calculate Radiosity with each object's different states is a nightmare at times. Is there a more optimized solution? I don't care if its plugins, compositing tricks, global node editing tricks, or whatever. Any help would be greatly appreciated.

(Oh and please keep in mind that the Radiosity calculations are for interior settings)

Now if faking it is the better option for speed, I can't even begin to fathom how to do it. Any help, again, would be deeply appreciated. Thanks.

jesblood
07-11-2013, 12:56 PM
Sorry if this seems like a stupid question but I could really use some counsel on this. I'm trying to keep within the team's deadline and I'm a little worried. I'm looking to upgrade my hardware. That may solve the problem itself but since I've never investigated the other options before, but have heard about them, I thought now was as good a time as any to find out if faking is better and easier to setup or if there are really clever ways to speed Radiosity calculations. Don't know.

We would be very great full for any help. We're a small indie team trying to pull our dream together. Any help is extremely welcome. Thanks.

Slartibartfast
07-11-2013, 02:00 PM
Hi!
http://www.except.nl/lightwave/RadiosityGuide95/
Really good tutorial on radiosity settings. For faster rendering try Interpolated and lower RPE. Or use just background radiosity (not really useful for interiors if you don't lose the roof). If thats also too slow maybe some ambient occlusion is faster? There is people here better suited than me to describe how to do that. I know there are some threads about it in this forum.
Not much help but hope you succeed in time with your project!

jesblood
07-11-2013, 04:52 PM
Hi!
http://www.except.nl/lightwave/RadiosityGuide95/
Really good tutorial on radiosity settings. For faster rendering try Interpolated and lower RPE. Or use just background radiosity (not really useful for interiors if you don't lose the roof). If thats also too slow maybe some ambient occlusion is faster? There is people here better suited than me to describe how to do that. I know there are some threads about it in this forum.
Not much help but hope you succeed in time with your project!

Thanks. Really appreciate the help. Checking out your link. Hope it clears things up

Surrealist.
07-11-2013, 10:42 PM
Yeah that is a solid write up. It covers the basics very well. Also there is a video tutorial online that is pretty good.

Here is a Vimeo link and there is a course you can buy at cmiVFX
http://vimeo.com/66521496

dee
07-12-2013, 04:27 AM
You could also bake the textures for objects that don't change and exclude them from radiosity calculation.

MarcusM
07-12-2013, 04:36 AM
Maybe my sollution can be good for you. I using this during preparing assets to Unity, it is quite fast, not using radiosity and result is better that ambient occlusion:

http://forums.newtek.com/showthread.php?134461-Tip-Tutorial-Bake-textures-UV-borders-prepare-in-PS-Unity&highlight=borders+error