> Darren New<dne### [at] sanrrcom>  wrote:
>> Have you looked into XNA? What sort of result do you need? You could build a
>> 3D model and a shader that would give you just the outlines of things, then
>> capture the image from the render buffer.
>>
>
> Hi Darren,
>
> I looked into xna last year as far as I know it stands on the same viewpoint as
> povray on hiddenlines issue. Not possible or possible easily.
>
> If I can use a shader in xna that can show 3d objects only as hidden lines
> then problem is solved(almost). Cause I am already familiar with xna.
>
> There must be some other way, what is autocad, 3ds max using to make hidden line
> renders possible? I mean what technology, as in we use povray to get quality
> still
> pictures of 3d models.
>
>
> thank you very much
> optima
>
> PS: I dont mean wireframe, it's something else.
>
>
>
>

Those mostly use triangles/polys that are coloured as the background 
with the edges set to some colour. Then, using the Z-buffer, draw them 
starting with the farthest ones.
There is additional computation that can be done to hide lines that are 
inside the contour of the geometry.


Alain

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