WebGL objects __webglFaceBuffer :WebGLBuffer __webglVertexBuffer :WebGLBuffer Preparation Phase [Setup flattened list] For each scene graph object: Init matrices. Create geometry groups corresponding to face materials. [Setup buffers] For each geometry group object: Create WebGL buffers. Create Non-WebGL buffers. Add an item to flattened list. Update buffers (Vertex buffer, Index buffer...). Rende