Subject:
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HDRI and radiosity
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Newsgroups:
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lugnet.cad.ray
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Date:
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Thu, 25 Mar 2004 09:45:42 GMT
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Viewed:
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1846 times
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Hi again,
I’m still working on a good way to use hdri with MLCad pictures. And I found out
that grey is a “bad” color. Pictures with grey models are always too dark. I can
only fix this if I place additional light sources. I don’t know the reason yet
but I think it has something to do with the color palette that is normally used
in PovRay. I have replaced the colors with those that are used in the radiosity
includes from digitalbricks.nl. And surprise...lights without any light source.
But - no light without shadow. Normal grey now looks like chrome. Using other
colors than grey in my model gives me the brilliance I want. Here are some
examples for the things I found out yet:
LDRAW / LGEO colors, no lightsource:
http://www.brickshelf.com/cgi-bin/gallery.cgi?i=697513
LDRAW / LGEO colors, 1 additional lightsource:
http://www.brickshelf.com/cgi-bin/gallery.cgi?i=701062
colors from radiosity.inc (digitalbricks), no lightsource:
http://www.brickshelf.com/cgi-bin/gallery.cgi?i=699814
http://www.brickshelf.com/cgi-bin/gallery.cgi?i=699864
I’m still looking for a better way to render the train without using additional
lights. But if I use the modified colors there are too many reflections and I
found no parameter yet to reduce this to a more real stile. Anyone here who can
help?
Greetings
Sven
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Message has 2 Replies:
 | | Re: HDRI and radiosity
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| (...) Sven, The easiest way is to reduce the reflectivity of the colors. I have a file around here somewhere that Orion once sent me with lowered reflection (Jeroen's colors, for the digitalbricks radiosity). However, if you're looking to use only (...) (20 years ago, 25-Mar-04, to lugnet.cad.ray, FTX)
| | | Re: HDRI and radiosity
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| "Vince" <Vincent05@gmx.de> wrote in message news:Hv4Ls6.19y5@lugnet.com... (...) found out (...) I can (...) yet (...) used (...) radiosity (...) source. (...) other (...) some (...) Hi Vince, I would like to help you, this also affects me and the (...) (20 years ago, 31-Mar-04, to lugnet.cad.ray)
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