Graphics Issue

[SiW979]

One of my users is encountering graphic display problems where faces see to distort and shoot off the screen (see attached image) we have had problems with graphics cards which are now fixed and we can't find any obvious preferences that will help. Can anyone offer any tips or advice?

Many thanks

Simon

 

[velto]

Simon
Try to change your monitor (screen refresh rate) on 85Hertz it will be better. I think.
Velto

 

[hudson888]

First and foremost, you said one of your users has the problem, so I presume that other users are not. The first thing to look at would be differences the hardware from one system to the next, especially the graphics cards. One way the NX helps you to test it out can be found under Preferences>Visualization Performance. Look at all the settings under all the tabs, and set them the same as the workstations which are working properly. Then run the "Evaluate Graphics Performance" button and compare the test results between the stations. The results of the test may also supply suggestions as to how to optimize your graphics performance.

Changing the settings in itself may solve the problem. Under the "Large Model" tab we prefer to turn off "Fixed Frame Rate" and "View Frustum Culling". For larger models with inferior hardware you may need to vary these settings. The graphics performance evaluation might supply some hints in that direction.

Otherwise on rare occasions even with pretty up spec certified hardware after working in a model for some time I have obtained a bad refresh that I could only remedy by changing to another view in order to redisplay the model properly. In these cases even regenerating the work view was not helping. For us it happens only very seldom so I haven't taken the matter further as it was relatively easy to work around it. FYI In my case elements of the image were going missing rather than seeing weird extra pieces of information.

If you still have no luck, post back and let us know more about the Graphics cards you're using. Judging by the appearance of the image you attached I also wondered whether you are displaying model geometry or faceted representations when this occurs?

Best Regards

Hudson

 

[SiW979]

Thank you both for your suggestions, but we've covered all these aspects. I doubt it will be hardware problems, we are running top notch kit on 64bit PC's each costing £7000 ($14000)and they are all under 6 months old. The graphics cards we are using are Nvidia quadro FX4500.

 

[hudson888]

Last Ditch. Check that the drivers are the same on all systems. Perhaps try updating to different drivers for the one that is having the problems.

You certainly shouldn't have problems with those cards, but if you've two boxes with the same card that perform differently then you could try a card swap to diagnose if one is defective.

Scanning the latest postings on this forum alone you might query whether the 64Bit O/S is worth the trouble. Seems that there are a few of us who have 64Bit capable systems and have held off upgrading to 64Bit Vista and aren't overly regretting it. I mention this only in the context of your original post that suggested some systems are fairing better than others to point out which features that I would first query as to the difference between a box that works and one which does not.

Chances are that apart from my bit of educated guesswork I can't be of much further assistance, so I'd say post it with PLMS and please do let us hear back from you if and when you manage to solve it.

Best Regards

Hudson