[osg-users] Adapting a height field with a triangle/polygon?

[Sebastian Messerschmidt]

Hi Raymond,

If you're okay with having a regular mesh after your editing operation 
you can either use a vertex-texture that you modify or you can adapt a 
osgTerrain::GeometryTechnique to generate modified geometry patches. 
I've done this once for a game that used SimCity-style terrain 
sculpting. I can share portions of the code with you privately.

Cheers
Sebastian
> Hi everyone,
> 
> I have a question about the implementation of an idea: I would like to 
> adapt the vertices in a height field based on a triangle/polygon. So I 
> would like to start with a height field and push/pull vertices with a 
> triangle/polygon so that the height field is flattened according to the 
> triangle/polygon.
> 
> This is a pretty new area for me so does someone have pointers to 
> example code? I have browsed the examples but cannot find pointers at 
> the moment. I am probably looking in the wrong places at the moment...
> 
> Thanks a lot, cheers,
> Raymond
> 
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