POV-Ray : Newsgroups : povray.newusers : shadows : Re: shadows Server Time
6 Oct 2024 02:13:48 EDT (-0400)
  Re: shadows  
From: Alain
Date: 31 Jul 2009 23:01:05
Message: <4a73aff1$1@news.povray.org>

> 
> garek007 wrote:
>> I'm in sketchup and I use the plugin which makes a POV file, I am then in
>> POV-Ray using that file generated by sketchup to render my image.
>>
> I'd check the objects in the POV file for 'no_shadow'.
> If it's there get rid of it, if not then I can't say for sure as I know 
> nothing about sketchup.
> 
> But in POV there are only few ways that there are no shadows. Check the 
> light sources, if there is 'shadowless'in them get rid of it.
> If there are no light sources then you will have no shadows!!
> And lastly make sure that the objects are on or near the ground.
> Some times a combination of camera & object & ground plane placementa 
> combine to makes it look like an object had no shadow.
> 
> Hope this helps.
> 
> Have Fun!!
> 

You should also look at your light_source. They may have the shadowless 
attribute. You can do a search for "shadowless" if your source file is 
to long.
If so, remove that attribute.
shadowless is OK for weak fill lights, not for the main light(s).

Take a look at your ground plane, especialy it's finish block.
Search for ambient and diffuse. Launch a search for "finish" if you 
don't find. You may have a finish resembling to:

finish { ambient 1 diffuse 0 }

Whitch create a surface that don't react to any light.

If so, you can do one of the following:

Add a "//" in front to comment out that finish and use the default one.

Or:

Change the finish to:

finish{ambient 0.05 diffuse 0.7}




Alain


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