Reducing polycount

[clauds1223]

Hi there, I am trying to import an object into ArchiCAD but it’s slowing down the whole software because it’s got a high polycount I think. Please let me know how to fix this. 

thanks, 

claudia 

[Davor P]

What kind of object is it?

We built our tool so that you can quickly generate a 3d object. In the process you can control polygon count.

https://vktrs.co/tools/image-to-gdl/

If you need to keep the original object just need a lighter version, there are different tools. Modelport, lightobject.app, Mootools polygon cruncher or Blender are the few I found most useful.

[danielk]

If you have Rhino, you can open the object there, and use the ReduceMesh command to reduce the number of polygons, then you can import that as an object.

https://docs.mcneel.com/rhino/8/help/en-us/commands/reducemesh.htm

At least that is what i usually do.

[CosminF]

If you don't have Rhino, you can download Blender, and apply a decimate modifier and merge geometry by distance, then you can import that as an object. 

[Barry Kelly]

Autodesk also offer a free program called meshmixer.

I can't say I have tried it for reducing polygons, but I did notice that it can do it.

And I am unsure what file format for objects it can open.

You can also convert the object to a morph in Archicad, reduce the polygon count and then re-save as an object.

Barry.

[Patrick M]

Modelport is a great add-on for polygon reduction. I have seen people use rhino+grasshopper with great success as well. You can also convert to morph and use the modify morph segmentation (design > modify morph) option, this can be a mixed bag; sometimes it doesn't reduce polygons much, and often results in larger objects, or if you keep it as a morph, it may be heavier on the file than the object.

do you have a link for the object you imported? most of the time, I just build them from scratch with morphs/shells/beams/etc, and save/script a custom object... at most, it takes me 3 hours, and I get to control the polygons, appearance, attributes, etc.

[Eric Milberger]

Modelport is easy and takes no skill or time   EASY

It does not have to reintererate as it simplifies the entire model