There was a performance issue with the Matinee viewports in 4.0. This has been fixed for 4.1. Performance can be improved a little in the meantime by limiting the size of the Matinee windows.
I have come across an issue using matinee.
When the matinee tab isn’t open, I’m getting around 90fps give or take. As soon as I open matinee, it drops to as low as 12fps. Any idea why?
I changed the LOD to low, but it appears to have done nothing.
Ahh I see. Do you mean not have as many groups or tabs within the matinee sequence?
I believe I have found a quick fix for the performance issues in matinee! Whilst in matinee and you’re having performance issues, change the LOD to lowest, then change it back to what you had before and your performance increases dramatically.
It is the size of the viewport that displays curves, groups etc. that matters, so simply resizing the window smaller should alleviate it.
FWIW, the issue was with the rendering of hit-proxy objects (so the mouse can interact with the viewport). This required a read-back of the rendered buffer from the GPU, which on some cards could be really slow.