Let's say that I have a array of points generated from a height field. 
But I want areas of low slope to be made completely flat and rounded to 
the nearest 24 vertical units.

I know that the result will no longer be a classic heightfield since 
there will be vertical areas that will need to be joined by new 
triangles. But how would I accomplish this?

The simplest thing to do would be to measure the slope of each triangle 
relative to the ground plane and then alter the vertices. But the 
triangles are in a regular grid:

http://i421.photobucket.com/albums/pp292/SharkD2161/LDraw/terrain_nosteps_standin_01_zps6hreaqla.png

It will look funny since all they are all oriented in the same direction.

Thanks for the help!


Mike

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