Actually, you know what? I’m mistaken. DirectX does support more than 16-bit indexes.
So it might be safe to use this feature of Panda. But to do this, you have to explicitly tell your GeomPrimitive that you intend to use 32-bit indexes, like this:
primitive.setIndexType(GeomPrimitive.NTUint32)Still, strictly speaking, you should not create a GeomPrimitive with more than base.win.getGsg().getMaxVerticesPerPrimitive() different vertices in it; and you should not create a GeomVertexArray with more than base.win.getGsg().getMaxVerticesPerArray() vertices in it. These limits are imposed by your hardware, and they may be different for different cards (or different drivers).
David