Accessing terrain data

[ben]

Hi,

I have a terrain generated from a height map. I wish to access the terrain data so I can (for example) place a scenenode (eg for a tree or something) on the corner of each quad that the map consists of.

In the 'terrain' tutorial, I have found this:

Code: Select all

scene::CDynamicMeshBuffer* buffer = new scene::CDynamicMeshBuffer(video::EVT_2TCOORDS, video::EIT_16BIT);
        terrain->getMeshBufferForLOD(*buffer, 0);
        video::S3DVertex2TCoords* data = (video::S3DVertex2TCoords*)buffer->getVertexBuffer().getData();
        // Work on data or get the IndexBuffer with a similar call.
        buffer->drop(); // When done drop the buffer again.

But once I have this buffer I do not know what to do with it! How do I actually extract or iterate through the data?

Many thanks,
Ben.

[Mux]

If you want the position of each vertex in the vertex buffer I think you could try something like this:

Code: Select all

for(int i=0; i<buffer->getVertexBuffer().size(); ++i)
{
   buffer->getVertexBuffer()[i].Pos;
}