You may have issues when you open a file and try to view a model.

1. Click the Files tool.
2. Click the 3D file which contains the relevant model.
3. Click Sheets & Views
4. Click the relevant model to load in the viewer.

You may encounter the following:

• The model doesn't seem to display and looks empty but there is no error message.
• The model is distorted or shimmers while navigating the model.

These issues are generally caused by an object or line which is far away from the rest of the model. This makes the bounds of the entire model too large and therefore the geometry is far away, smaller than the size of a pixel on the screen.

Why can't I see the model?

If the model is empty, an error message will display. However, if there is no error message and you can't see your model click the Fit to View icon on the viewer toolbar at the bottom of the screen.

If the view still appears empty, the model bounds may be too large because of a distant object or line.

1. Open the model browser on the left navigation toolbar.
2. Scroll the model tree and hide a group of objects which you think are distant to the model.
3. Click the Fit to View icon
4. If you still can't see the model properly, repeat steps 2 and 3 above for a different group of objects.

Once you've hidden the distant object or line, you should be able to see the model. To fully address this issue, open the model in your authoring application, remove the distant object or line and add the file back into the Files tool for viewing.

Why is the Model Distorted and Shimmering?

If the model seems distorted or shimmering as you navigate, either:

• The bounds of the model are too large caused by a distant object or line
• The model is far from the origin (origin x,y,z coordinates = 0,0,0)

1. Navigate the model by zooming in and out.
2. Open the model browser on the left navigation toolbar.
3. Scroll the model tree and hide a group of objects.
4. Click the Fit to View icon
5. If you still can't see the model properly, repeat steps 2 and 3 above for a different group of objects.

You may still see distorted model objects even when the distant object or line is hidden. To fully address this issue, open the model in your authoring application, remove the distant object or line and add the file back into the Files tool for viewing.

If you have repeated steps 2 and 3 for all objects and the problem persists, check the position of the model itself. Models that are far from origin (origin x,y,z coordinates = 0,0,0) may display similar issues. Move the model closer to the origin in the authoring application, save and add the file back to the Files tool.