Forum: Bryce

Subject: Fast rendering GI with only one light and the sun!

Rayraz opened this issue on Dec 25, 2002 · 6 posts

Rayraz posted Wed, 25 December 2002 at 8:53 AM

Instead of using a light dome, use negative lights to create the GI like shadows. Fiddle with the gradient and the light settings to get the perfect look. This is my fist try. HDRI-map for the sky, one negative light for the GI-like shadow and one soft-shadowed sun for the keylight.

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lsstrout posted Wed, 25 December 2002 at 2:01 PM

That is a very interesting effect. I like the way the shadow worked out and the sky is very pretty. Lin

madmax_br5 posted Wed, 25 December 2002 at 2:09 PM

Very cool. Could you send me the scene so I can include some examples on the GI web site? If so, just IM me. Thanks.

Vile posted Wed, 25 December 2002 at 5:29 PM

Hmm negative light...

neijc1 posted Fri, 27 December 2002 at 5:47 AM

I didn't think Bryce could handle HDRI - did you clip it to 8 bit TIFF first?

Rayraz posted Fri, 27 December 2002 at 7:51 AM

I made a few renders of different bryce-sky's in 360 degree panorama mode and combined them in PSP. Then saved the image as a BMP and mapped it on a huge sphere in sinusoidal (or however it's called) mapping mode. I made the sphere additive and made the sky full black. Then I used the reflection of the metal ball to get the lighting from the sphere.

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