Point meshes use VBO geometry by default, which avoids data-texture
geometry fetches for large point sets while keeping mesh/view/material
state in the existing WebGL data-texture tables.
OptionalmemoryPolicy
memoryPolicy?:RendererMemoryPolicy
Renderer-owned memory allocation intent for matching SceneModels.
Geometry storage for point primitive meshes.
Point meshes use VBO geometry by default, which avoids data-texture geometry fetches for large point sets while keeping mesh/view/material state in the existing WebGL data-texture tables.