I’ve notice that if I start a render then realise I want to change something I cant cancel the render.  I press the cancel button and nothing ever happens.  In fact everything locks up till the render has finished unless I go the control alt delete route and start again.I’m on win xp pro sp2 and up to date with the latest version of Daz studio  (though I've never got this to work with any version)

I have noticed that if you are using raytraced shadows for lights, the cancel function is adequately responsive; instead, with Deep Shadow Maps the delay can be in the region of half minute/one minute.

Anyway, Cancel has significantly improved (before 1.4 it was extremely unresponsive).

It would be great if DAZ managed to bestow Studio the same responsivness of Bryce (stopping a render is ALWAYS istantaneous).

I think it's something to do with the bucket size you have set. When you abort a render D/S finishes that bit of the render still in the bucket before it aborts. This can take several mins, so it looks like nothing is happening.

I had this problem in version 1.3, took ages to stop the render but now with 1.4 it seems to work straight away.

With raytraced shadows, the bucket size plays a huge effect on the responsiveness. Basically DAZ|Studio needs to finish whatever bucket it's rendering before it will cancel ( I suspect I know what's going on programatically, but I'll save everyone from the geekspeak :P ). So if you're doing quick "spot render" type things, you might consider having a small bucket size. For full renders, the larger bucket should actually be just a bit faster since it doesn't have to come back to get instructions as often and can  just keep processing.

To set bucket size... Go to the Render Settings option and on the Advanced Tab is a slider for bucket size.

For my full renders, I use 128. While I'm spot checking, something around 4-6 lets me abort and twiddle surface settings, or whatever faster.

cheers ill give that a go

I just installed the latest version and I'm having the same problem.  Maybe because I'm using the software render instead of open gl.

I was having that problem as well.  Glad I looked at this thread.  Thanks.

I have always had this problem but only click the cancel button once, it looks like it sticks but its not it takes a while to get with the program, lol, but eventually it cancells, sometimes I think when I click it I have to do it twice which I do to.

My bucket size is set to 4.

Angela