favreau / bullet

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Rotations in Blender 2.56 have no impact on TriangleMesh objects and no names are exported. #493

Closed GoogleCodeExporter closed 9 years ago

GoogleCodeExporter commented 9 years ago
What steps will reproduce the problem?
1. Export from the new bullet blender configurationa .bullet mesh with a 
TriangleMesh collision shape.

What is the expected output? What do you see instead?
New Blender exporter does not export the rotation of a TriangleMesh properly no 
rotation information is exported. Instead the orientation is defaulted and you 
have to make additional rotations to the rigid body inside of the application 
to format things.

What version of the product are you using? On what operating system?
Blender bullet-2.56-trunk-svn35500-Win32-Release
Windows 7
very recent trunk of 2.78

Please provide any additional information below.
I have attached a sample if you export that triangle mesh with any rotational 
settings you will find the .bullet you get is not rotated.
Also names do not seem to be included in exports in this version.

Original issue reported on code.google.com by dominics...@hotmail.com on 16 Mar 2011 at 8:03

Attachments:

GoogleCodeExporter commented 9 years ago
This is a Blender issue, not a Bullet issue. Please use the Blender issue 
tracker next time, this is exclusively for Bullet.

The rotation seems to work just fine. Remember that Blender uses the Z axis for 
UP, so you have to compensate for that. 

Names are not supported yet, I'll see if can can add that soon.

Original comment by erwin.coumans on 16 Mar 2011 at 8:53

GoogleCodeExporter commented 9 years ago
by the way, committed the 'name' export in the Blender repo.

Here is a new Windows 32bit Blender release and also a Bullet Physics Editor 
that can load the .bullet file (for verification)

http://code.google.com/p/bullet-physics-editor/downloads/list

Original comment by erwin.coumans on 16 Mar 2011 at 9:36

GoogleCodeExporter commented 9 years ago
Much appreciated the validation, I am just getting the physics into my engine 
properly now after some protoypes. Got it loading from multiple files and 
pushing the data into one world where it can interact ok. I have not identified 
why rotations dont apply properly but its very likely to be a bug on my end in 
that case. I will check the tool to make sure this error is definetely on my 
end.

Thanks for the rapid response.

EO

Original comment by dominics...@hotmail.com on 16 Mar 2011 at 10:29

GoogleCodeExporter commented 9 years ago
I am definetely at fault, thanks for the updated editor.

Original comment by dominics...@hotmail.com on 16 Mar 2011 at 10:32