More than one light slows down slows viewport on Mac Pro
Ive just been trying the demo of the latest Pro version and was thinking of buying but I think I may have just found a problem when using more than one light in a scene that includes a 3D object.
More than one light (any type) makes the viewport very slow making it unusable, I've tried a simple un animated obj cube and a animated alembic file and its exactly the same, strange thing is, its happening even if in disable lighting from the viewport options.
Am I doing something wrong?
My system is:
Mac Pro Late 2013 running El Capitan 10.11.4
3.5 ghz 6 core intel xeon e5
64 gig ram
2 x AMD Fire Pro d500
Hitfilm 4 Pro update 6 (demo)
Update: Ok just noticed if i switch off lights and shadows from viewport options it speeds up again but that cannot be right as iam just using a simple obj cube with no textures or anything and cast shadows on both lights is disabled.