Graphic Issues w/ Revit 64

[bholmes]

Our office is in the process of a Revit 64 bit upgrade. Some machines are running fine, but I have a problem with the line accuracy on my machine. As I zoom in and out components, slabs and walls move all over the place. I am having columns shift 1 to 2 feet at times. I have also had models completely disappear when I am zooming way in. It is making it very hard to be sure about what is where.

Specific details:

Happens in all views.....2D and 3D

No previous issues when running Revit 32 bit on same system

System is:
64bit Dual Core
8 Megs Ram
Nvidia GeForce 6600 GT

All other Revit/Virtual Memory options are set to default.

The other machines in our office use a variety of processors and graphic cards.

Is this a driver issue? Graphics card? I hope I can get this fixed, as aside from this 64bit is flawless, and is so much faster than 32bit ran on my system.

Please help

[vgonzales]

Do you have opengl hardware acceleration turned on?
You might need to turn it off.

Settings menu>Options>Graphics tab

[bholmes]

Open GL Hardware Acceleration is disabled.

Thanks for the suggestion though.

[twiceroadsfool]

Are you certain the issue is hardware related? Models behave that way when theyre assembled a very large distance from the Origin, in Revit...

[bholmes]

Are you certain the issue is hardware related? Models behave that way when theyre assembled a very large distance from the Origin, in Revit...

Sounds possible. The linework was imported from Civil Autocad dwg, and it was to say the least, pretty jacked up. We cleaned up the dwg before I imported it, but Revit did have trouble importing it at origin.

How would I check this, and if its the case then fix it?

Thanks very much for the advice, it really sounds like it might be the problem.

[twiceroadsfool]

Go to a floor plan that has no crop region, and import the attached AutoCAD file origin to origin.

Then, find it in your model. All of the geometry in your model needs to be roughly within a mile (5,280 ft) of that circles centerpoint. Or is it a half mile?

Anyway, im betting youre pretty far away from it.

EDIT: You shouldnt get any warnings about it having trouble importing. If you get a warning, it may have not put the file at the origin.

Keep me posted...

[bholmes]

Go to a floor plan that has no crop region, and import the attached AutoCAD file origin to origin.

Then, find it in your model. All of the geometry in your model needs to be roughly within a mile (5,280 ft) of that circles centerpoint. Or is it a half mile?

Anyway, im betting youre pretty far away from it.

EDIT: You shouldnt get any warnings about it having trouble importing. If you get a warning, it may have not put the file at the origin.

Keep me posted...

I would just like to state that "twiceroadsfool" is the man! It took me nearly an hour to get my model back to the origin, but now it is working perfectly. Many, many thanks.

[twiceroadsfool]

LOL, glad you got it situated. :)