On 13/12/2018 09:37, Ton wrote:
> It's a little while ago I posted something. I am quite sure you're all wondering
> what's happening (or not!).

It sank, did it not? ;)


> I tried to do the hull with arrays, and then calculate the triangles, and
> normals.
> Didn't work.
> Too difficult for my old head.

I thought just struck me like a neutrino. (It does not stick very 
often.) If you did not want to use a mesh for what ever reason. You 
could use a Bicubic Patch. The problem with that I think you need to use 
a utility to see your changes in real time. (Just like Blender.)
I threw a quick scene together to see if it would work. See attached.


> So I'm modelling the hull in Blender, and export it to Povray, and that seems to
> be going all right.
> So here is a new image. Enjoy.
> 


This is getting too good for words.

-- 

Regards
     Stephen

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Preview of image 'bicubic patch_1_0000.png'