Mike Williams wrote:
> 
> Wasn't it Remco de Korte who wrote:
> 
> >I considered using triangles or a mesh, which would have been much faster were
> >it not that I want the front and back of the sheet to have a different pigment.
> >In fact, in the original object I use image_maps. That doesn't affect the speed
> >much.
> >I also thought about using triangles and alternating the pigment depending on
> >which side is face towards the camera but I couldn't figure out how to do that
> >in POV.
> >Two thin boxes seemed like the easiest way.
> 
> Err, at the moment your object is actually the same colour on both
> sides. I think you meant to write
> 
>   #declare origami=
>   union{
>     object{front}
>     object{back}
>   }
> 
> instead of
> 
>   #declare origami=object{front}
>   union{
>     object{front}
>     object{back}
>   }
> 

Yes, you're right. That was a remainder of my experiments.

> In this version "origami" is #declared to be the red box, and then a
> copy of the bi-coloured box is rendered.
> 
> It's possible to have meshes (or anything else) with different textures
> on each side in MegaPOV, by using the "interior_texture" keyword.
> 

I haven't tried that, I wonder if it would make a big difference, with the total
amount of sections being the same. I'll see if I can figure out how to follow
your suggestion. Thanks.

> 
> --
> Mike Williams
> Gentleman of Leisure

Remco

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