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In lugnet.cad.ray, Anders Isaksson wrote:
> Kevin L. Clague wrote:
> > I'm not much of a POV expert, but it looks to me like Jeroen used a
> > single light source (I only see one shadow per model).
>
> You can use many lights, and still have a single shadow by making all lights
> but one 'shadowless' (a modifier to the POV light description). I often put
> a (not too bright) shadowless light at the same position as the camera, to
> make sure there's at least *some* light into all the cavities you can see.
How bright is "not too bright"? These lights don't obey the r**2 law like real lights do, right? I noticed that if I have several rgb<1,1,1> lights the scene seems "overilluminated" Do you use .5 or so for the not too bright ones?
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Larry Pieniazek wrote:
> How bright is "not too bright"? These lights don't obey the r**2 law
> like real lights do, right? I noticed that if I have several
> rgb<1,1,1> lights the scene seems "overilluminated" Do you use .5
> or so for the not too bright ones?
Actually, the sum of *all* your lights should not be too much over <1,1,1>
as some parts of the image may be saturated. I usually use 0.5-0.7 for the
*brightest* light, and 0.1-0.3 for filler lights.
Remember it's easy to modify light intensity by placing the multiplier
before the 'light vector', like
0.2*<1, 1, 1>
this makes it easier to test different values, especially if you are
experimenting with colored lights.
--
Anders Isaksson
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