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Off-Topic Discussion => Arts & Talents => Topic started by: Topgun on March 21, 2007, 11:35:45 am

Title: De-Triangulator?
Post by: Topgun on March 21, 2007, 11:35:45 am
Hi, I am in need of a De-Triangulator, that turns double triangles into square for model optimization. does such a thing exist?
Title: Re: De-Triangulator?
Post by: jr2 on March 21, 2007, 12:06:41 pm
I have no clue, but...
http://www.programurl.com/software/3d-models.htm
which I got from
http://www.google.com/search?&q=open+source+3d+model+optimize&btnG=Search
Title: Re: De-Triangulator?
Post by: Flipside on March 21, 2007, 12:14:30 pm
What modelling program are you using?
Title: Re: De-Triangulator?
Post by: Topgun on March 21, 2007, 12:30:37 pm
Blender, but I also have wings 3d and truspace. what I need is to get rid of the diagonals.
Title: Re: De-Triangulator?
Post by: Flipside on March 21, 2007, 01:30:08 pm
Yup, the best way is to do it by hand than trust an autmated program to do it, else you get situations where it merges two triangles that are halfway across the UV map from each other, which totally fubars the texture.

Basically, you need to select the polygons in small groups, and use a tool that will be called 'merge polygons' or the like in the modelling program.
Title: Re: De-Triangulator?
Post by: Topgun on March 21, 2007, 01:35:02 pm
Yup, the best way is to do it by hand than trust an automated program to do it, else you get situations where it merges two triangles that are halfway across the UV map from each other, which totally fubars the texture.

Basically, you need to select the polygons in small groups, and use a tool that will be called 'merge polygons' or the like in the modelling program.

the model has 4000 polys. what is the automated way?
Title: Re: De-Triangulator?
Post by: jr2 on March 21, 2007, 01:38:25 pm
...Could you try selecting polygons in large groups??  (really large, if you don't like it, try the next level down).  I dunno...
Title: Re: De-Triangulator?
Post by: Turey on March 21, 2007, 01:42:45 pm
why do you need to do this?
Title: Re: De-Triangulator?
Post by: Pyro MX on March 21, 2007, 01:47:15 pm
I've never done that, but there's maybe something to do this in the Scripts window or a python script (http://www.blender.org/download/python-scripts/) to add this functionality.
Title: Re: De-Triangulator?
Post by: Topgun on March 21, 2007, 01:51:33 pm
I've never done that, but there's maybe something to do this in the Scripts window or a python script (http://www.blender.org/download/python-scripts/) to add this functionality.

Tried that, it no work.
Title: Re: De-Triangulator?
Post by: Topgun on March 22, 2007, 01:17:17 pm
I just found a quad --> Tri button in Blender. I tried and it did the job.
Title: Re: De-Triangulator?
Post by: redsniper on March 22, 2007, 06:20:08 pm
yeah, in blender Alt-J is tri -> quad and Ctrl-T is quad -> tri.