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On 2021-03-21 9:27 AM (-4), Bald Eagle wrote:
> Just a simple-minded idea for a solution:
> Will adding emission to the bulb and hood interior not work?
> You could tie its value to the brightness of the light source.
That's the idea, but no_radiosity has to be set on these surfaces.
Radiosity should naturally be shut off for the bulb, otherwise the scene
gets double the illumination that it should. But no_radiosity is set on
the hood interior _only_ to avoid artifacts, so this radiosity must be
faked.
The replacement of the hood interior radiosity is complex. The emission
on the hood must be estimated from self-reflection from other parts of
the hood interior, but _not_ from the bulb, since the light source takes
care of that. The hood interior spotlight, on the other hand, must
consider both the illumination of the hood by the light source and the
self-reflection of the hood.
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