public void UseAncestorVertexData(TerrainQuadTreeNode owner, int treeDepthEnd, int resolution) { mNodeWithVertexData = owner; mVertexDataRecord = null; if (!IsLeaf && treeDepthEnd > (mDepth + 1))// treeDepthEnd is exclusive, and this is children { for (int i = 0; i < 4; i++) { mChildren[i].UseAncestorVertexData(owner, treeDepthEnd, resolution); } } CreateCpuIndexData(); } /// <summary>