Possibly it may happen that parts cannot be displayed in ArchiCAD. This is mostly due to mesh errors.
When exporting in mesh format you can select a simplified depiction. This is robust against mesh errors.[3]
![Export options -> Option "Only use the error-tolerant [Use only fault tolerant display mode for meshes] representation for meshes"Use only the error-tolerant representation for meshes Meshesfault-tolerant](https://webapi.partcommunity.com/service/help/latest/pages/cn/partsolutions_user/doc/resources/img/img_091b2a4c32a247b7ab421663811c99c3.png)
Export options -> Option "Only use the error-tolerant [Use only fault tolerant display mode for meshes] representation for meshes"
You can determine this behaviour via configuration file in general:
[CreationOptions] ForcePlaneBasedMesh=0/1
When exporting with simplified display, the quality of fillets is poorer.[4]
![Only use the error-tolerant display for meshes [Use only fault tolerant display mode for meshes]: On/Off](https://webapi.partcommunity.com/service/help/latest/pages/cn/partsolutions_user/doc/resources/img/img_9f7e0eb5010443ce8aebd36dcf6ba7ec.png)
Only use the error-tolerant display for meshes [Use only fault tolerant display mode for meshes]: On/Off
[3] The simplified depiction is not using rounds. The mesh generation is quicker then. If „ForcePlaneBasedMesh“ is not set, the better depiction is used. Then generation is more time consuming. If an error occurs with the better depiction, normally it is intercepted and the simplified depiction is automatically used. Possibly ArchiCAD is not able to draw the object, nevertheless. If the simplified depiction shall be chosen in general, then you can set the key „ForcePlaneBasedMesh“ to 1.
[4] Differentiated color display is only possible for mesh-based parts. Otherwise, only individual features can be colored.