ArchiCAD 15 Crashing

[Anonymous]

I'm working on a fairly detailed model of a barge, there are truss maker objects, a fair amount of complex profiles and a few objects that are converted 3ds to gdl. Also i have used OBJECTiVE to rotate and split a few things.

Archicad has all the latest hot-fixes and will open and close fine on any other models.

The problem im having is extreme lagging and crashing in the 3D window and whenever im rebuilding sections etc.

My Graphics card needs updated but that's becoming a headache for another reason although its not running excessively old drivers, maybe a month or two.

Also ive created new layers and hidden alot of the model, still having the same issue.

Looking at the monitoring system on my laptop AC is only using about 30% of the processor power and 40% of the RAM, so i don't think its a hardware issue.

Any insight would be appreciated.

[NCornia]

Grant 44,

It helps to know the number of polygons in the model. If you go to the Help Menu and click on the link for ArchiCAD xx Downloads it takes you to a page with some helpful items. Scroll down to Goodies and get the Polygon Counting Tool (PolyCount), close ArchiCAD and install the tool. Now open ArchiCAD and your model in 3D, then go to Palettes / PolyCount and the tool will count the number of polygons in your 3D model and a breakdown of polygons for each object and category. From our 3dSpeed article: "As a rule of thumb, a model is "large" when polygon count reaches 1 million, and the performance problems turn severe in the 3-4 million region." Make sure this is not the case.

For more helpful articles on this topic please see: http://www.archicadwiki.com/Category3dSpeed

Also, make sure that there are not degenerated polygons in the 3D model. These are 3D anomalies that cannot exist in the 3D world (virtual or real) such as elements comprised of 2 nodes with no plane or thickness or a which shape contorts over itself. Also, extensive or complicated solid element operations on meshes are a common recipe for performance issues. I recommend to cut holes in meshes and fill in the underside of your building with a separate mesh rather than use SEOs.

HTH