[ODE] Heightfield position.

[Chris Brodie]

> -----Original Message-----
> From: gl [mailto:gl@ntlworld.com]
>
> How do you guys specify your heightfield positions?  I currently use a
> tile's center (which I guess is more in line with other geoms), so I'm
> wondering if that's common or not.

My method is is based on a 'top left corner'. Thsi method was just grown out of programming convenience. All heightfield offsets then of course are easy to just 'add' to the top left corner in a right and down direction(when thinking of a heightfield in 2D.

For the AABB I keep the highest and lowest heightfield values and after all tiles are generated I get the bottom right point. I feed these 2 3D points in to the CAABB class, it has a simple .GetCentre() type member that returns the centre of the box, which I use for the geom. 

I only mentioning all this to demonstrate how other methods can evolve. That said, I can easily adapt my code to a new method.


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