Hi Christian,
Have you checked if osgdem supports it? I think it will happily convert
anything into osgTerrain which can be interpreted as height data by gdal ...
Hi,
I am currently wondering which is the better way to go from a simple
digital elevation model (ESRI ASCII Grid format) to a geometry. The
model has a very limited area and resolution.
These are the two methods I find feasible with stock OSG features:
Either I could feed all the 3D points on the grid into the
osgUtil::DelaunayTriangulator. However I noticed this class generates
normals that require a BIND_PER_PRIMITIVE - possibly causing a
fallback to the slow rendering path.
Alternatively I could put the data into an osg::HeightField and use a
ShapeDrawable to display it.
Which of the two methods is perferable from a performance standpoint?
What I would like to get is a bit of a simplification of the geometry,
where larger triangles are used in areas with less surface features.
Which of the two methods can provide this?
I do not want to use osgEarth, as it is a bit too big in scope for my
purpose and it has a lot of extra dependencies.
Christian
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