POV-Ray : Newsgroups : povray.general : Color is washed out in intersection + cutaway_textures Server Time
10 Aug 2025 15:18:03 EDT (-0400)
  Color is washed out in intersection + cutaway_textures (Message 1 to 2 of 2)  
From: Bald Eagle
Subject: Color is washed out in intersection + cutaway_textures
Date: 8 Aug 2025 20:15:00
Message: <web.689692d0e940879b1f9dae3025979125@news.povray.org>
I have a union of colored objects.
I intersect that with an untextured shape.
The result is the default gray.
Applying cutaway_textures gives me my colored union in the shape of the union.

But now the colors are washed out.

What do I do to correct this?

-BE


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From: Alain Martel
Subject: Re: Color is washed out in intersection + cutaway_textures
Date: 9 Aug 2025 08:51:44
Message: <68974460@news.povray.org>
Le 2025-08-08 à 20:14, Bald Eagle a écrit :
> 
> I have a union of colored objects.
> I intersect that with an untextured shape.
> The result is the default gray.
> Applying cutaway_textures gives me my colored union in the shape of the union.
> 
> But now the colors are washed out.
> 
> What do I do to correct this?
> 
> -BE
> 
> 
> 
Without cutaway_textures, the surface of the cut take the colour of the 
cutting object.

With cutaway_textures, you get the colour of the main object, AND, 
whenever any two, or more, objects overlap, you get the average of their 
colours.

Corrective :
Use a difference of an object minus any other object from the union that 
overlaps it as the objects to be used in the union.
Trade off : Will use more memory and get slower to render.


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