Limitations on obj loader

elander · Post by **elander** » Tue Jul 11, 2006 12:50 am

I tried to load a big .obj model and i got this message:

Could not draw triangles, too many primitives(79440), maxium is 65535.

Does the other loaders have similar limitations? In particular the .x loader does it have this limitation?

The last time i tried to use the .x format with the previous version of irrlicht i had to use some tweaked version of the a python script exporter for Blender. Now with the irrlicht 1.0 and Blender 2.41 can i just use the exporter that comes with it or do we still need that tweaked python script and run the mesh trought the directx mesh viewer?

jam · Post by **jam** » Tue Jul 11, 2006 1:23 am

I believe you have two options, either reduce the number of polygons in your model to a number less than 65535 or apply the 32bit patch that you can find on Hybrid's site and recompile the Irrlicht dl. I think you can also search the forum to find more info on this limitation.

vermeer · Post by **vermeer** » Tue Jul 11, 2006 5:48 am

is not a format limit, happens also with x

I think is the 32bits stuff he says...

there was a thread before Earth was created. They had the patch at irrlicht Nx.
Seems hybrid has then a patch for that..

[hybrid you're really of value for irrlicht comunity...]

elander · Post by **elander** » Tue Jul 11, 2006 9:59 am

Great stuff. This should be pinned somewhere in the development forum.

Shakira22 · Post by **Shakira22** » Fri Jul 14, 2006 5:06 am

really ?

QtGraphDev · Post by **QtGraphDev** » Fri Aug 18, 2006 7:44 am

i downloaded the last version of patch
irrlicht 1.1

but when i tried to execute the patch i got this :

C:\irrlicht-1.1\source\Irrlicht>patch -p1 < 32bit.patch
patching file CAnimatedMeshMD2.cpp
Assertion failed: hunk, file ../patch-2.5.9-src/patch.c, line 339

abnormal program termination

any hint ? maybe the patch work only with irrlicht 1.0 ?

hybrid · Post by **hybrid** » Fri Aug 18, 2006 8:48 am

Yes, the patches are not yet updated. I've worked on the bug patches, yet, but not all are converted. They will be accessible under a .../patch.1.1/... hierarchy, but as not all patches are converted I did not publish them right now. Due to the many changes done already it's this time quite a lot of (small) changes to the patch files.
But your error seems to be a problem with the patch tool, not with the actual patch.

QtGraphDev · Post by **QtGraphDev** » Fri Aug 18, 2006 11:26 am

i figured out what is the problem with patch
patch file provided will not work under windows until the --binary option used.
So the patching command will be 'patch --binary -p1 < 32bit.patch'.

hybrid · Post by **hybrid** » Fri Aug 18, 2006 12:57 pm

Ok, that's been ever since, and it's also documented on the patch How-to page

QtGraphDev · Post by **QtGraphDev** » Mon Aug 21, 2006 6:54 am

the 32bit.patch does not work with irrlicht 1.1.

They will be accessible under a .../patch.1.1/... hierarchy,

you may give me a full path ?

hybrid · Post by **hybrid** » Mon Aug 21, 2006 9:52 am

If you cannot figure it from the current patch page and my hint you should probably wait until the working patches are accessible

QtGraphDev · Post by **QtGraphDev** » Mon Aug 21, 2006 10:35 am

If you cannot figure it from the current patch page and my hint

did you mean that it's possible to use the current 32bit patch to patch irrlicht 1.1 ?

hybrid · Post by **hybrid** » Mon Aug 21, 2006 12:06 pm

No, but you can already access some updated patches if you change the URL. However, due to several new scene nodes in Irrlicht I doubt that the 32bit patch will be updated very soon.