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Reduce export time 50%
Posted: Mon Feb 27, 2012 9:29 pm
by mib2berlin
If you switch of normals in Octane Render Settings > Export Options the export time reduce about 50%.
Could somebody verify? It seams nothing change in octane render result.
A huge performance boost for big scenes or animations.
Cheers, mib.
Re: Reduce export time 50%
Posted: Tue Feb 28, 2012 4:08 am
by aLeXXtoR
Well, I tried this with a production scene that I'm currently working on... It's seems like it is really speeds up exporting. Also Octane definitely loads this scene faster.
I'm not sure if that it can dramatically improve animations render (because Lionel's exporters seems to export next frame while Octane renders current one for example), but anyway this note is very useful, thank you!
Re: Reduce export time 50%
Posted: Mon Mar 05, 2012 6:44 am
by yoyoz
So far I can see Octane does well with exported meshes without normals and is able to recalculate them properly. This speeds up both export and import, while anyway smooth normal export is broken with blender builds having bmesh. See
http://www.refractivesoftware.com/forum ... 362#p83979 if you plan to use these, as 1.14 fixes the uv layout issue.
Re: Reduce export time 50%
Posted: Mon Mar 05, 2012 12:21 pm
by mib2berlin
THX, IIRC I used 2.62 for my tests but seams the problem with trunk is also solved from campbell barton.
Code: Select all
Revision: 44646
http://projects.blender.org/scm/viewvc.php?view=rev&root=bf-blender&revision=44646
Author: campbellbarton
Date: 2012-03-05 11:49:24 +0000 (Mon, 05 Mar 2012)
Log Message:
-----------
fix [#30457] Smooth normals wrongly exported to wavefront
mesh.calc_normals() wasnt calculating vertex normals (only face normals),
now only calculate vertex normals.
added a define incase we want to have poly normals back again.
Cheers, mib.
Re: Reduce export time 50%
Posted: Mon Mar 05, 2012 12:25 pm
by Proupin
I have tried the same thing in 3ds max and can confirm it speeds up as well; as long as you turn on smoothing groups in the exporter (turn off normals of course), and activate "interpolate using smoothgroups" before importing, it keeps your smoothing groups as usual. At least twice as fast, didn't know that thanks!!!
Re: Reduce export time 50%
Posted: Mon Mar 05, 2012 2:03 pm
by yoyoz
mib2berlin wrote:THX, IIRC I used 2.62 for my tests but seams the problem with trunk is also solved from campbell barton.
Quite nice, he made the fix 7 hours after I opened this ticket
Now need to get updated release (I'm using the PPA from Ralf Hölzemer and it's at 44639 at the moment). Unfortunately I'm relocating this week and may not have internet access for some time due to stupid ISP...