animating noise modifier on prtloader seems to crash max

Hello,
After 3 days of searching, I realized that adding noise object modifier to the prt loader crashes max to desktop without any warnings after rendering 3 to 10 frames of animation. But it seems to happen only if you start to animate noise modifier in time. Crashes appear randomly.

Similar problem appears while animating noise modifier applied to a frost object covering lots of prt loader particles.

Do you encounter similar problems? Or is this my problem only? Can someone test it on other scene - with over 2 million particles?
I use max 2012, recent Krakatoa.
hard drives are new, SSD from intel,
i7 3930k, 32GB ram, 64bit windows 7

thanks

It would be very useful to provide a MAX scene (even without the PRT files) that contains the PRT Loader, the animated Noise Modifier, and possibly a PFlow that could be used to produce PRTs to feed into the PRT Loader. This way, we will be sure we are testing under the same conditions.

When you say “recent Krakatoa”, can you please provide the exact number? There is a HUGE difference between 2.1.5 and 2.1.7 for example, and both are “recent” :wink:

Jesus,
I was unaware that I am working on Krakatoa 2.1.1.4
it’s on my company computer, I will try to upgrade and will inform you if the problem still appears

But meanwhile please test if ANY prt loader crashes under such circumstances, okay?

And, above all, thanks for such a great tool, krakatoa, xmesh saver and so on. As a biological background guy, I sense that there is some heavy math inside of it, you guys are silent geniuses.

I created a PRT Loader, picked a file containing 17 million points and rendered 10% (1.7 million) over 100 frames with an animated Noise OSM.
Then I rendered again with 100% (all 17 million particles) with the same setup.

No crashes in build 2.1.7.49974 (you can find it here: thinkboxsoftware.com/krakato … ilds-beta/ )

Do you get any error message when the crash occurs?

Oh, and thanks for the flowers, will pass them on to the actual geniuses on the team…

Is beta okay for use?
can I safely switch krakatoa version without instability risk in scenes? I cant allow myself for risk this time, I’d prefer to install new after finishing work on the scene.
anyways, this time I’ve avoided the problem by removing unecessary particles and applying noise after caching prt with xmesh. Noise on xmesh worked okay.

The beta builds are better versions of the commercial release - with a lot of bug fixes.
We should probably rename them from “Beta” to “Better” :wink:

But you are right to update only between projects, because some bug fixes could actually change the look of your output.