Zeger Knaepen wrote:

> how about making the default value for emission the same as the 
> ambient-value?

yes that should work nicely

> And finish {ambient 1 diffuse 0 emission 0} 
> results in a texture that looks unshaded and emissive, but doesn't emit any 
> light in a radiosity-scene.

I don't know how radiosity is implemented in detail, it may
be a problem to have an object which is bright but should not
radiate away light. But a radiosity scene could then treat
ambient as 0 if emissive is present.

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