I running into export inconsistency. I've got a Linux install of Houdini and a Windows version. The data from Linux export is not writing data correctly. The data is getting written out, but in-engine the .pos and .rot are not right.


A simple example, same .hip

c/p spheres, pack, sim, export.

Linux .rot,pos messed up. I can see the data in-engine.

Windows all good in-engine.

Should I just be exporting through Windows?

Thanks
G

Can you upload your simple hip file please so I can take a look?

Mike

Here it is.

Thanks

Greg

By the way I'm using 1.131 of the game dev tools

Any thoughts on this?

Sorry about the delay. I can confirm that there is a difference but I'm currently travelling. As soon as I'm back in the office next week I'll debug the cause.

Mike

Hi Greg,

Taking another look at this and the issue is the operating system and rbd rather than the VAT export.
If you run the same hip file on different operating systems you will get different results from the sim. That's just the nature of how bullet works.

However, the resulting VAT files are exporting the correct data for their respective OS's. I ran your hip file on both Mac and Linux, imported the files into UE4 and they both work correctly. Remember you'd have to use different bbox min and max values for each based on what the particular file generates.

If you're still having issues let me know.

Mike

Ok great thanks for testing. We'll look at other pipeline issues.



Greg