Justin Smith wrote:
> I've written a fairly simple grass macro. I want to use it to coat some
> isosurface terrain. Each blade of grass consists of only 3 triangle
> objects. The macro works by using trace() at a random x,z position with
> each blade of grass. I think I need around 500,000 blades of grass to get a
> realistic look. The problem here is that even with 2.1 Ghz and 1 GB of Ram,
> I never even get to the rendering step of generating the output image. It
> spends about a half hour on the parsing, and then at least 2 more hours on
> generating bounding slabs (I quit after that).

3*500000 triangles should not be a problem if they are in one mesh 
(500000 meshes with each 3 triangles could be a problems though).

None the less most scenes with complex vegetation make use of 
instancing, i.e. the same mesh is used several times in the scene.

Christoph

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