WebGL MSAA framebuffers exist, but require extra memory and an intermediate step compared to EXT_multisampled_render_to_texture https://registry.khronos.org/Op

WebGL MSAA framebuffers exist, but require extra memory and an intermediate step compared to EXT_multisampled_render_to_texture https://registry.khronos.org/OpenGL/extensions/EXT/EXT_multisampled_render_to_texture.txt https://registry.khronos.org/OpenGL/extensions/EXT/EXT_multi... PBO support in WebGL lacks glMapBufferRange for non blocking read back.