It is just a cache file. The OVD just caches the simulation so it should play back faster. That’s all it does. If you want the simulation “active” you leave it alone as is. The cache file should help.
If you want to “bake it out” to keyframes you can use the State Recorded. None of that workflow has changed.
thank you! I am fully aware of the terms and the differences of them.
I have used cache files for decades on other 3d and video software.
Can someone link me to a documentation on how to use this OVD on Kit106 to create that cache file and use it, please?
As you can see from my above video, I can bake the sim = record the cache file but how do I bring it in and use it on my scene in Kit106?
If not available, what is the closest tutorial for it? Maybe with that I can make it work by trial and error.
If you have baked the sim and recorded the cache, all you have to do it set the file path in the OmniPVD and now it will playback really smooth. Make you have both Physics Debug AND OmniPVD Extension loaded. Once you recorded the ovd file in the debug settings, make sure you hit “Load Latest” in OmniPVD to reload the scene using the ovd file you recorded
..and when I press play to see my simulation running and finally press stop after all is done, I can see the file “2025_05_16_14_38_59_01_rec.ovd” appearing at my specified folder.
Now forwards! Next thing is to find the OmniPVD window, that you have pasted in your answer. Well, there is no. So I am still missing some extension.. What could it be?
Please see the video and you can see this all very clearly:
I am very sorry Richard, I cannot follow your instructions.
When I try to open the Window / Physics / OmniPVD like you show me with print screen example, I do not have that:
That was the reason I kept looking for extensions.
If you had watched the video I sent you in my previous message you would have seen that, or if you would read the topic of this case: “Baking the sim with Kit 106” you would realize my situation here.
Well know propably you ask “Pekka why are you using Kit 106 and not 107?”
That is since your solution here:
Also I have answered the reasons why I need to combine both Omniverse and Isaac Sim on that topic.
So can you now please tell me Richard how do I find the “OmniPVD” window with that “Overlay OVD on an Active Edit layer” -function that you show as an image on your above message?
You see I have only the Omni PVD here with that record function:
You may have to enable “AUTOLOAD” first, and not actually enable it directly, and then restart kit. This will then pull those files in on load. A lot of extensions are like that.
The other thing you can try is to do all of this physics baking in kit 107. Once you save it to usd, there is no reason it will not open in kit 106. Most of our stuff is backwards compatible. Just because you need to do work in kit 106, does not mean you cannot use 107 as well to make assets or to bake in transforms. It all works with standard usd.
I also tried it all on Kit 107 since it was the other option here.
My idea is to export this bake to Kit 106 later.
SO here is how far I got it made in Kit 107.
What should to after I have pressed the “Load Latest” ?
As you can see, when I press that button all is invisible..
I just played it around and activated some hidden layers, but materials are missing and it plays back very slow..
In one of your messages above you tell me to press ( after recording the sim ) the Bake PhysX Transforms into the Active Edit Layer.
So what is the correct steps to do after I have played the sim with the rec on check and I can see the .ovd file appering in my chosen folder?
I like it very much that you are helping me here in forums, but I also have hard time to believe that there is no official video tutorial about baking physics with Omniverse.. If there is please just link me to that and I am happy to follow!
