I find when using openGL in 3D generation, more system memory is used. For instances, I have a model when using openGL , 1.2G memory is used. When using ArchiCAD internal engine, 600MB is used.
Meanwhile I have a bigger model. It is OK when using ArchiCAD internal engine but program error and quit while using OpenGL.
Any gentleman know the problem?
I would like to switch to use PC. I think the memory should use more than 2G . Is ArchiCAD support 64 bit addressing in PC?