Projection Problem: triangular “gaps” appear in the projected texture in the areas touched by the borderline of the projection brush, as it moves over the model’s surface

Hello,

I’m new to Mudbox, using Mudbox 2012 on Windows 7 Professional. I’m currently using Mudbox for the texturing of a model and I am experiencing this streaking/pixelation effect as my projection brush moves across the model’s surface. I didn’t have this issue until now while using the exact same model and reference photos, it started occuring while working on this project and now occurs with every image I use for projection, even the ones that didn’t do it at first. I may have done something wrong with the Projection Brush attributes although I tried adjusting them and I do not get any change in the appearance of this effect. My screenshot includes the effect across the cheek of the model I’m working on and my Projection Brush settings (the ones that could fit into my screen for the capturing of this screenshot).

Any help would be greatly appreciated.

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This forum has no helped me to solve my problems on the generation of seams to extract normal maps in Mudbox 2012 SAP ... 2 jobs lost. Now I think of them as unrecoverable. Now I have more than a month trying to fix this problem caused by SAP Mudbox 2012 and nothing happens.
And unfortunately, I can not try to extract the normal and displacement maps from Mudbox 2010 because I can not open the files in Mud2010.
Are there any service pack for Mudbox 2012 SAP to see if this can possibly fix this bug?

I continue to have this issue occassionally with both the projection and stamp brushes. It also exports to the saved texture, it’s not only seen in the viewport, and the seams seem to follow the topology of the model.

Here’s an incomplete test texture I tried exporting, the seams seen are the same effect as the one occuring in the viewport, but seen in the exported texture file.

http://img31.imageshack.us/img31/6170/eyetexturelefttestpart.jpg

I asked my teacher about this and he suggested that it might be an issue of graphics card compatibility. I have an ATI Radeon HD 5450 and incidentally I know that it is causing me some occasional issues with interrupted video playback and font display on Desktop icons, so it might be the reason for this as well.

I haven’t updated my graphics card’s driver so I don’t know if that fixes this issue, my current driver version is 8.662.0.0.