Recent changes to bug-reports

ctmconv cannot handle spaces on its output through zenity

Alistair Fitchie — Sun, 26 Jun 2016 12:40:09 -0000

ctmconv doesn't recognize quoted variables as one entity if their contents contain spaces.
If I type in a command, using backslashes in filenames with spaces, e.g:

ctmconv /home/alistair/Desktop/plastic/Buffers/Model\ Rail.stl /home/alistair/Desktop/Model\ Rail.3ds

it works perfectly.
If I use zenity to produce a gui to do the same:

ctmconv /home/alistair/Desktop/plastic/Buffers/Model\ Rail.stl /home/alistair/Desktop/Model\ Rail.3ds
Error: Invalid argument: /home/alistair/Desktop/Model\

Ubuntu Xenial 64 bit. Don't know how to call up the version number of ctmconv.

Makefile on Mac not working

Kieran Harris — Tue, 19 Jan 2016 10:40:47 -0000

Hey there, i am trying to compile the libopenctm.dylib from the Makefile.macosx on terminal,
however it throws this error..

Tet:~ TeT$ make -f /Users/TeT/Downloads/OpenCTM-1.0.3/Makefile.macosx
cd lib && /Library/Developer/CommandLineTools/usr/bin/make -f Makefile.macosx -j2 && cd ..
/bin/sh: line 0: cd: lib: No such file or directory
make: *** [openctm] Error 1

Thanks alot

#11 Vertex Normal issues

jozxyqk — Fri, 09 Oct 2015 10:09:05 -0000

Had a look for it but can't find it sorry. The basic idea was as follows:

Faces (with "f" at the start of the line) specify indices for each vertex such as '3/4/5'. I just kept a dictionary of these combinations, creating new vertex/texture coord/normals every time I found a new combination, replacing the face's vertex with indices of all the same number (the index of the combination in the dictionary).

#11 Vertex Normal issues

Valentin K — Thu, 08 Oct 2015 15:35:24 -0000

Could you post a link to your script please???

compilation not working on mac os x

roberto — Wed, 30 Sep 2015 12:40:20 -0000

Hello,
I'm trying to compile openctm in mac os x (I have os x 10.10). The compilation ends without error (only a lot of glut-related warnings). I'm interested only on the tools. This is the error I get when trying to use ctmconv:

tools/ctmconv mesh.ply mesh.ctm
dyld: Library not loaded: libopenctm.dylib
Referenced from: /Applications/_Graph/OpenCTM-1.0.3/tools/ctmconv
Reason: image not found
Trace/BPT trap: 5

thank you for your help!

roberto

#11 Vertex Normal issues

jozxyqk — Fri, 01 Nov 2013 10:53:34 -0000

I've been experiencing issues with obj to ctm conversion. I suspect it's to do with the way obj can use separate indices for position/normal. I created a small python script to generate unique vertex/normal pairs within the obj and the normals came out just fine afterwards.

Vertex Normal issues

Matthias Guntrum — Fri, 26 Oct 2012 20:14:12 -0000

If i try to export an .obj to a .ctm I am experiencing -what looks to me like - vertex normal issues.
Is it possible that duplicate vertices are the reason and if yes why?

http://threever.org/demos/problem/webgl_loader_ctm2.html
http://threever.org/demos/problem/assimpobj.png
obj
http://threever.org/demos/problem/sphereDAEtoOBJ_ASSIMP.obj

Compile with mingw-w64

Daniel Kirchner — Mon, 02 Jul 2012 15:51:56 -0000

OpenCTM 1.3.0 can't be used with mingw-w64 at the moment. The reason for this is that in win64 there are no stdcall @'s, so the .def files mess linking with OpenCTM. The solution for this would be to provide a separate Makefile.mingw-w64 that uses openctm-msvc.def instead of openctm-mingw1.def and openctm-mingw2.def.

UV coordinates broken

Stefan Wagner — Tue, 03 Apr 2012 09:51:40 -0000

If I try to encode a obj model to the ctm format everything works fine besides the UV coordinates. The UVs are right on some places but the exporter apparently has troubles with texture seams. I tried the command line and the GUI tool. Is there a solution for this problem?

Point cloud compression

Paolo Cignoni — Fri, 30 Sep 2011 11:44:14 -0000

If I try to save a mesh composed by just vertexes (no triangles) it does not save it and says "CTM INVALID ARGUMENT"
There is a simple workaround: it is sufficient to add a null triangle (three indexes to the same vertex).

Could be patched?

(tested only on a macosx 10.6.8, gcc 64 bit)

cheers and thanks in advance