If I render a scene and need to cancel, it takes a long time for the processer to stop processing. I have pressed the escape key but that does nothe either.

Any ideas?

Hi,

That is annoying, isn’t it?  mental ray, I assume?  It is inconsistent, at best.  Sometimes it does it, and sometimes it doesn’t.  Are you running out of memory when it becomes unresponsive?

Try saving your file before rendering and close the application in the Task Manager if needed.  Do Region renders instead of entire images to minimize the damage if it won’t respond.  Network Render to another machine or send it to your machine via Backburner.  Oddly, cancelling a job in Backburner gets a quick response.

As you may have seen, your whole system may be unresponsive, and rebooting the machine may be necessary.  Save often!

Jenni

Author of “Mastering mental ray”:  http://www.mastering-mentalray.com
4D Artists, Inc.:  http://www.4da-inc.com
Chicago 3ds Max User’s Group: http://www.max3ds.com

Max Design 2012; Win 7x64 12gb i7 Dual GTX 580; Win 7x64 Intel i7 4-core@3gHx 12gb Quadro 5000 and Tesla C2050.

save too often is not that good either, i save so often that autobackups arent created since it sees the work is saved, so when u mess up and want the old file ur screwed :P

Save incrementally using the button to the right of the File Name field with the plus sign on it,
this will leave you with older and newer files.
On the original question, if Max is hanging or is intensely involved with it’s rendering calculations,
it (the processor) isn’t always going to be checking for the interrupt command, until it’s present set of operations is complete.

Max 2012
Windows 7 64 SP1