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lightmap calculation

Posted: 2004-12-22, 12:41
by 3DProgrammer
Hi Carsten!

How do you calculate the lightmaps for your levels? Is it radiosity based? Know any good websites where i can learn this stuff?

Thanks

Re: lightmap calculation

Posted: 2004-12-22, 16:11
by Carsten
3DProgrammer wrote:How do you calculate the lightmaps for your levels? Is it radiosity based?
Yes.
Know any good websites where i can learn this stuff?
No, but a few good books.
Please have a look at this FAQ: http://www.ca3d-engine.de/phpBB2/viewtopic.php?t=32

I just added two books there about radiosity. "Computer Graphics, Principles and Practise" has a good section about radiosity, and the two books below it are all about radiosity. The one by Ashdown is no longer in print, afaik.
I used all three for implementing CaLight, but mostly the upper two.

Posted: 2004-12-23, 12:42
by RAZOR
Just as a point of curiosity, what are you impressions of photon mapping?

Posted: 2004-12-23, 20:51
by Carsten
RAZOR wrote:Just as a point of curiosity, what are you impressions of photon mapping?
To be honest, I don't know enough about it yet and cannot clearly relate or compare it to ray-casting or radiosity methods, but I'll soon have a thorough look into http://graphics.ucsd.edu/~henrik/papers/book/

When I'm through with the book :book:, maybe it will eventually find its way into Ca3DE. Maybe this becomes a booster for CaLight, after all. :wink: