Quote - Rayraz, thank you for your answer. Is IBL more efficient (faster) than the light dome? Because IBL is very slow...
FranOnTheEdge, I have found this tutorial by Nick Jushchyshyn about light domes, perhaps you can find it useful...
http://www.hiddenphantom.com/Tutorials/BryceDomelight/BryceDomelight.htm
Best regards

Ramon

Both are slow. Generally IBL can get a more pronounced effect because its easy to have a variation of color and intensety in your lighting while a light dome is usually constructed with only one color. Ofcourse you could do all that manually for a lightdome too, but i think it'd take a lot of time.

Sometimes a dome will be faster, but it depends on the amount of lights in your dome and if they have soft shadows or not. When using smooth noiseless textures, you will need soft shadows and/or a lot of lights to get a smooth shadow, which means killer rendertimes.

In some more advanced applications animated lightdomes are used in combination with motionblur to get softer shadows with fewer lights, but this trick doesnt work in bryce.
Btw, I suspect DAZ from using a method similar to a procedurally generated light dome for IBL rendering in bryce, because the shadows from brycean IBL are still faceted, especially at low quality settings...

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