I think environment visibility cache in rebuilding in blender viewport rendering for bidir rendering.
I think this cause viewport is very unresponsive when cache is enabled in world settings
visibility cache rebuilding in viewport - bidir
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Please upload a testscene that allows developers to reproduce the problem, and attach some images.
Please upload a testscene that allows developers to reproduce the problem, and attach some images.
Re: visibility cache rebuilding in viewport - bidir
Yes, all pre-processing is disabled for RTPATHCPU/OCL but it is not for BIDIRCPU.
However this is something BlendLuxCore must take care of (i.e disabling all caches for view port rendering with BIDICPU) because LuxCore can not know if BIDIRCPU is being used for a view port rendering or a final rendering.
Re: visibility cache rebuilding in viewport - bidir
I have fixed this problem in the 2_79_maintenance branch, 2.8 branch still todo.
edit: done in 2.8 branch as well.
edit: done in 2.8 branch as well.