On 11/11/2016 12:47 PM, Bald Eagle wrote:
> Stephen's suggestion about mapping out the axes so that you can keep track is a
> great one - it helps keep everything straight when you're trying to write SDL
> and get all the parameters right.

I define Front, side, Top orthogonal cameras and a free moving camera 
for taking the image. Duplicating the set up of a technical drawing.
Bald Eagle's idea of using transparent textures for unions is very useful.

-- 

Regards
     Stephen

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