Nvidia K5000 Anti-Aliasing Mouse problem

[NeilClasby75]

Hi

I have an issue with anti-aliasing.

I have had a K5000 for a couple of months now and tried various updated drivers but still have an issue with my Autodesk Inventor setup. I have now updated from 2013 to 2014 (Inventor) and still have the same issue.

I have Inventor set to Quality on hardware. The anti-aliasing then works ok. I can rotate the view using my 3Dconnexion mouse fine, and the anti-aliasing continues to work. But as soon as I move the mouse I loose the anti-aliasing. The mouse driver is standard windows. I have no other software installed on this windows 7 64 workstation, only Inventor and Excel.

I also have a laptop workstation using a Quadro FX 2700M. The anti-aliasing works fine on this machine.

I have a mouse attached to laptop. It's the same brand but slightly different model to the workstation mouse (both Razer). I have both machines with the standard mouse driver, not the Razer driver.

I use a 3Dconnexion SpacePilot Pro on both machines with the same driver (v3-16-1_r1342).

When I open a file in Inventor, and the mouse is either over the ribbon menu or the top title bar, I can rotate and zoom using the 3D mouse and the model is perfectly anti-aliased. If I move the mouse in the ribbon menu or top title bar the model in the workspace is still anti-aliased. But as soon as the mouse passes over the workspace or side Inventor explorer menu the model reverts to standard non-anti-aliased view - as if I had Inventor set on Performance rather than Quality.

Also, if the mouse is positioned over the workspace or explorer areas and I rotate the model, the anti-aliasing 'switches back on' so to speak. I can rotate and zoom again and the model is perfectly anti-aliased - even though the mouse is over the workspace or browser. But as soon as I move the mouse I the model reverts to non-anti-aliased again. Until I re-use the 3D mouse.

One thing I did notice, was that if I change the Inventor view settings to use an IBL environment then I do not get this problem. The anti-aliasing does remains even when I move the mouse. But unfortunately, this is not a perfect solution as it means every time I open a file (which is every few minutes) I need to re-apply the IBL setting, to which there is a time delay.

I am also getting artifacting/glitches in the Inventor IDW Drawing environment. Every horizontal inch up the screen I get a pixel shift, a sort of mis-alignment where the pixel 'row' of the screen has shifted horizontally by a pixel or two.

I have contacted Nvidia who suggested using the Autodesk certified driver, currently 307.45, but this has not had any affect.

Help!

Regards, Neil.

[matthewbrindley]

I posted a similar problem today with gtx680.
My problem is the complete opposite of yours,my anti aliasing only works when I move the mouse.
Anti aliasing stops when I stop moving the model.
Surely it cannot be this hard for Autodesk to get right?

[NeilClasby75]

Hi Matthew

As Nvidia make suggestions I'll post here.

They have asked whether I use nView.  I don't, so not applicable in my case, but you may want to check.  They have said to disable this to see whether it helps.

Regards, Neil.

[NeilClasby75]

Nvidia are being very helpful, suggesting various options to try.  So far this is not resolved, so I would really appreciate any assistance the Inventor team can offer.

Regards, Neil.

[matthewbrindley]

I will l bet this is an Autodesk issue.
Anti aliasing has never worked for me in this software.
I have tried ati and nvidia.
It is strange as their other software like showcase,design review etc seems to function correctly with anti aliasing forced from nvidia control panel.

[matthewbrindley]

After some experimentation I have discovered if I have ambient shadows switched on the anti aliasing works when the model is stationary.If i turn off ambient shadows and try any other combination it does not work.It only works with ambient shadows.Unfortunately when using ambient shadows I have another graphical bug,it makes certain parts transparent to content centre parts.

Another observation is when I drive a constraint and animate model this way the anti aliasing kicks in.

Its all very peculiar.