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 CAD / Ray-Tracing / 2088
  Re: More color problems
 
(...) One way is to insert a (dim) lightsource exactly at the camera point - this way everything you can see is also lighted. By making this light dimmer than other lights, you can still have shadows, but not so articulated. -- Anders Isaksson, (...) (21 years ago, 4-Feb-04, to lugnet.cad.ray)
 
  More color problems
 
I, like David, am having problems with color as well. I have used transparent elements before and they have rendered beautifully. However, in this case there seems to be something wrong and I really don't know what it is. I am trying to render a (...) (21 years ago, 5-Feb-04, to lugnet.cad.ray, FTX)
 
  Re: More color problems
 
(...) I found you problem Mike. How are you telling MLCad to use Trans-White? I suspect you're clicking Custom and then choosing Transparent. I'm inferring this from L3P inclusion of this color: #declare Color0x06FFFFFF The LDraw color number is 47 (...) (21 years ago, 5-Feb-04, to lugnet.cad.ray)
 
  Re: More color problems
 
(...) Orion, This helps a lot - and fixes that problem. I'll remember to use the actual transparent colors in future! I'll post the full render when my sluggish computer actually decides to do something here. Thanks again, ~Mike (21 years ago, 5-Feb-04, to lugnet.cad.ray)
 
  Re: More color problems
 
(...) And here it is: (URL) The white minifig has turned out beautifully - though the sceptre isn't as clear as I would like. Oh well. Maybe I should just stick with solid white. The problem is that any shadows make the minifig look like it's just a (...) (21 years ago, 5-Feb-04, to lugnet.cad.ray, FTX)
 
  Re: More color problems
 
(...) I noticed that in the radiosity code you're using option 1 for the color library. You could try option 2 which is Todd's LUGNET color includes (...) You might consider using shadowless lights (...) Since you using the radiosity include, (...) (21 years ago, 5-Feb-04, to lugnet.cad.ray)
 
  Re: More color problems
 
(...) The first problem is that I don't know where to get those, and I've never figured out whether they're included with the radiosity stuff...are they? (...) The problem is that the sky sphere still creates shadows. :( (...) Well, I tried that and (...) (21 years ago, 5-Feb-04, to lugnet.cad.ray)
 
  Re: More color problems
 
(...) L3P generates exactly the same color definition for 47, 0x06FFFFFF and 0x03FFFFFF, so normally it shouldn't matter which color you use. However, you include "ldraw_radiosity.inc" which again includes "LDRAW_RAD_COLORl.inc", and in this file (...) (21 years ago, 6-Feb-04, to lugnet.cad.ray)
 
  Re: More color problems
 
(...) I don't know POV, but I do know that index of refraction (IoR) shouldn't have any effect on reflections. Perhaps it does, but it shouldn't. You need do decrease the reflectivity, not the IoR. The IoR controls how much light bends when it (...) (21 years ago, 6-Feb-04, to lugnet.cad.ray)
 
  Re: More color problems
 
(...) You're right, I was mistaken. The IOR deals with the transparency. -Orion (21 years ago, 6-Feb-04, to lugnet.cad.ray)
 
  Re: More color problems
 
(...) Which makes sense when you compare the two renders and notice that the second one (with the IoR at zero) has a much more crystal-like sceptre. I don't know how much of an L3P-produced POV file is original POV code and how much is (...) (21 years ago, 6-Feb-04, to lugnet.cad.ray)
 
  Re: More color problems
 
(...) No, those 2 lines have to do with the type of light in the scene. Have a read in the POV Scene help file for an explantion of ambient and diffuse light. -Orion (21 years ago, 6-Feb-04, to lugnet.cad.ray)
 
  Re: More color problems
 
(...) That's a good idea. Unfortunately the sky sphere also creates a goodly amount of light, creating shadows of its own. The spotlight seems to have taken care of the stone look to the minifig, so I think I'll just stick with it the way it is. (...) (21 years ago, 7-Feb-04, to lugnet.cad.ray)

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