Re: [Visualpython-users] a wish or two

[<Art...@ao...>]

David wrote -

>Adding a primitive in C++ that would behave similarly but more efficiently
>or triangles would be relatively easy.

>Alpha is harder, because to render translucent surfaces accurately, you need
>to draw them from back to front.  At present, Visual doesn't need to sort
>most primitives (because they are drawn opaquely, and can be zbuffered).  If
>you want to attack this, I can give you some pointers - but it will take
>some effort.

An overview of the cvisual's rendering approach might help me get started. 
What
I am seeing in the code, to the extent I follow it, is not what I would 
expect.  If I look
at the code for a glut sphere or cone I see it being built geometrically from 
triangle fans and strips. 

Cvisual seems to look more like ray-tracing code - which I have never been 
able to
follow - though wish I could.    
 
Is there anything available that might help me better understand cvisual at 
this level?

ART