Op 26/01/2024 om 18:17 schreef kurtz le pirate:
> 
> Bonjour,
> 
> 
> Too bad this project is dead. The site doesn't even exist anymore.
> 
> Anyway, I used the framework for an image on my site
> <http://louisbel.free.fr/scenes/scene030.shtml> (sorry for the publicity
> for my site ;) )
> 
> 
> As you can see, some of the horizontal grid lines disappear depending on
> the image size. It's a basic texture
> 
> #declare GroundTexture2 = texture {
>   uv_mapping
>   pigment { image_map { png "grid" map_type 0 once interpolate 2 } }
>   finish { ambient 1 diffuse 0.6}
>   }
> 
> Any idea how to avoid this problem ?
> Thanks
> 

What (always) helps for me in such cases is using stochastic 
antialiasing (+am3 etc) in the radiosity block (v3.7 & v3.8):

//+w1000 +h450 +am3 +a0.01 +ac0.90 +r3 +bm2 +bs8 +wt7

#declare Stochastic = on;

and in the radiosity { } block adapt count:
     #if (Stochastic)
       count 10
     #else
       count 50, 1000
     #end

if I am not wrong, 'stochastic' is explained in the wiki documentation.

-- 
Thomas

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