Bug: One time Delay in switching Display Modes

that is a very old bug that happened across multiple set ups, screens computers, with mac os.

the issue is that the first time i load a model or open a new file, setting the display to something like shaded there is always a 1 or 2 second delay before it switches, and that also only happens the first time i switch after which it actually behaves. while that does not sound like much its a quite unnerving and unnecessary to have Rhino stuttering when you want to get going.

i checked with version 5, there it switches instantly without any delay and never ever gave me a hick up as far as i remember. i am not sure when this started happening maybe with version 6.

anyway why is that happening and could it please be fixed? has it got to do with materials loading now in the background since v6? but it still happens in v9.

i guess one of you 2 might know? @stevebaer @andy any ideas?

I’m not sure what would cause this offhand other than the fact that Metal is now being used instead of OpenGL. We’ll keep an eye out for this and see what can be done. There is work currently going on to try and identify performance issues like this and see what can be done.