@box said: Personally I would use Tigs smart offset, then deselect faces from Thomthoms selection toys, allowing the edges to be deleted and then pushpull. Ooh, I like this better! Thanks for the tip!

Sounds like a query for Vray Support. License holders get free support... https://forums.chaos.com/forum/v-ray-for-sketchup-forums

Good luck. I think if you are still seeing crashes, Vray is the next suspect. Other people have reported issues with Vray so it's a good one to check.

Tweak noise threshold (.03-.1 for tests, .005-.01 for finals) and Max subdivs. Switch to v3.6+! Disable 'Retrace' while testing. Hardware minimum: Latest I7 32gb ram, healthy SSD, gtx1080ti or better.

According to some rumors on the web, Nvidia will release a new 1180 card this summer. If you can wait a bit - I would expect a small price drop for the 10-series at that point as well.

Wow, am I really the only one with this problem?

That was it! Thanks so much.. this one has been bugging me for years literally.. I wish I would have asked this question a long time ago.. Many thanks!

I don't know about vray, but Thea measures that at surfaces areas and renders a graph. You can create an animation of this graph. Lightup does the same, but I think it's for artificial light only... maybe not. [image: MPvE_none.jpg] [image: U3wg_photometric.jpg] It's in lumens and in this case the range is defined between 0 - 15000