Nieminen Juha wrote:
> 
>   Wouldn't displacement mapping require LOTS of triangles? And I mean _LOTS_.
>   Just think that you want to apply a 640x480 displacement map to each side
> of a cube. If I have understood correctly, you will need at least 2 triangles
> per map pixel (like in a heightfield), which would make a total of at least
> 640x480x2x8 = 4915200 triangles.
>   Since this kind of triangle mesh can not (AFAIK) be optimized like a
> height field can be, it would take rather lot of memory.
> 
>   Perhaps I'm just exaggerating.

Since other programs offer this feature there must be some way to optimize
the process so it is not so memory and parsing intensive. There must be :)

-- 
Ken Tyler -  1300+ Povray, Graphics, 3D Rendering, and Raytracing Links:
http://home.pacbell.net/tylereng/index.html http://www.povray.org/links/

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