Prepasses only using half my cores at most

[cgbeige]

ok - smaller buckets worked to keep the CPUs busy. I think the default needs to be a lot lower than 64x64 since hyperthreaded machines are commonplace now. Anyway, hopefully that will be able to work for all scenes. I don't know why no one suggested this earlier.

[vlado]

Additionally as you pointed out on cgtalk, there seems to be some kind of issue on OS X. Would it be possible to get us that scene (to vraymaya@chaosgroup.com) so that we can check what may be wrong?

Best regards,
Vlado

[cgbeige]

sent the file with video of the render problem.