void newton_addstaticcollisiongeometry()
{
	NewtonCollision* treecollision = NewtonCreateTreeCollision(nworld, 0);
	NewtonTreeCollisionBeginBuild(treecollision);

	you = ent_next(0);
	while(you != 0)
	{
		if(you.flags & FLAG8)
		{
			newton_treecollisionaddentity(treecollision, you);
		}
		you = ent_next(you);
	}
	
	int i = 0;
	LPD3DXMESH pmesh = (LPD3DXMESH)ent_getmesh(NULL, i, 0);
	while(pmesh)
	{
		// add the triangles of the mesh to newton here
		int numvertices = pmesh->GetNumVertices();
		int numfaces = pmesh->GetNumFaces();
		
		_VERTEX_ *pvertices; pmesh->LockVertexBuffer(0, (void**)&pvertices);
		short *pindices; pmesh->LockIndexBuffer(0, (void**)&pindices);
		int *pattributes; pmesh->LockAttributeBuffer(0, &pattributes);
		
		D3DXVECTOR4 *ptransformedvertices = (D3DXVECTOR4*)malloc(sizeof(D3DXVECTOR4) * numvertices);
		D3DXMATRIX m; ent_getmatrix(pmesh, &m);
		D3DXVECTOR3 tempvector;
		int i;
		for(i = 0; i < numvertices; i++)
		{
			tempvector.x = pvertices[i].x;
			tempvector.y = pvertices[i].z;
			tempvector.z = pvertices[i].y;
			D3DXVec3Transform(&ptransformedvertices[i], &tempvector, &m);	
		}
		
		for(i = 0; i < numfaces; i++)
		{	
			float v[9];
			v[0] = ptransformedvertices[pindices[(i*3)+2]].x * QUANTTOMETER;
			v[1] = ptransformedvertices[pindices[(i*3)+2]].y * QUANTTOMETER;
			v[2] = ptransformedvertices[pindices[(i*3)+2]].z * QUANTTOMETER;
			v[3] = ptransformedvertices[pindices[(i*3)+1]].x * QUANTTOMETER;
			v[4] = ptransformedvertices[pindices[(i*3)+1]].y * QUANTTOMETER;
			v[5] = ptransformedvertices[pindices[(i*3)+1]].z * QUANTTOMETER;
			v[6] = ptransformedvertices[pindices[(i*3)+0]].x * QUANTTOMETER;
			v[7] = ptransformedvertices[pindices[(i*3)+0]].y * QUANTTOMETER;
			v[8] = ptransformedvertices[pindices[(i*3)+0]].z * QUANTTOMETER;
			NewtonTreeCollisionAddFace(treecollision, 3, v, 12, pattributes[i]);
		}
		
		
		free(ptransformedvertices);
		
		pmesh->UnlockVertexBuffer();
		pmesh->UnlockIndexBuffer();
		pmesh->UnlockAttributeBuffer();
		
		i++;
		pmesh = (LPD3DXMESH)ent_getmesh(NULL, i, 0);
	}
 
	
	NewtonTreeCollisionEndBuild(treecollision, 0);
	NewtonBody* level = NewtonCreateBody(nworld, treecollision);
	NewtonReleaseCollision(nworld, treecollision);
	
	NewtonSetWorldSize(nworld, vectorf(-1000, -1000, -1000), vectorf(1000, 1000, 1000)); // todo: make size dependent on tree collision bounding box
}