[Bf-funboard] Negative values for negative lamps and linear lights

Chando bf-funboard@blender.org
Wed, 12 May 2004 19:29:17 -0400


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Hi,=20
I would like to be able to choose negative intensity values for for =
negative lamps. Why? That is because it is a cheap way to fake shadows. =
You can even fake soft shadows at a fraction of the cost. I'm not makin =
this up, it is what Jeremy Birn advises in his book [digital] Lighting =
and rendering.=20
O yeah... also a linear light would also be a good thing. According to =
Jeremy Birn it is easier to implement, it is computational far less =
expensive than area lights and the results are almost the same.

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<DIV><FONT face=3DArial size=3D2>Hi, </FONT></DIV>
<DIV><FONT face=3DArial size=3D2>I would like to be able to choose =
negative=20
intensity values for for negative lamps. Why? That is because it is a =
cheap way=20
to fake shadows. You can even fake soft shadows at a fraction of the =
cost. I'm=20
not makin this up, it is what Jeremy Birn advises in his book [digital] =
Lighting=20
and rendering. </FONT></DIV>
<DIV><FONT face=3DArial size=3D2>O yeah... also a linear light would =
also be a good=20
thing. According to Jeremy Birn it is easier to implement, it is =
computational=20
far less expensive than area lights and the results are almost the=20
same.</FONT></DIV></BODY></HTML>

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