ZBrushCentral

Black glitches on my model

ZBrush Usage Questions
#1

Since I installed 3.1 I noticed that the slick and clean realtime renderer of older versions now showed some glitches while I was handling my models. (or at least, it does on my setup) Sometimes these black spots and errors occur very frequently, or all the time. Here’s an example.

[glitch.jpg](javascript:zb_insimg(‘67579’,‘glitch2.jpg’,1,0))

overall canvas size 1920 x 1440, actual size mode

I get this on most models, also on the demo ones.

Has anyone else noticed this, and is there something I can do about it? It’s quite distracting not seeing parts of your mesh because of these glitches.

Cheers,
Plakkie

P3.4Ghz
2Gig RAM
250 Gig HD
Zbrush 3.1
pretty standard Radion graphics card

Attachments

glitch2.jpg

#2

Bump! :wink:

#3

I have same problem with P4 3.2, 2gb ram and ATI Radeon 9800 PRO.

#4

It might help to turn off Preferences>Performance>QuickAndDirtyEdit. However, this will also usually slow down your sculpting a bit. It might also be necessary to update your video card’s drivers if you haven’t already.

#5

I tried QuickandDirty, but that didn’t help. I’ll look to the drivers next. I’ll look up my Video Card name as well, and maybe others with the same problem can post their cardnumber as well. If it’s related to Vidcard issues, maybe we can isolate it.
Thanks for the answer at this point Aurick!

#6

I now know I have a Radeon X700 card, and I just updated the drivers.

But: still an awefull lot of glitches:

[glitch3.jpg]

Sometimes it’s just really difficult to make Zbrush show a perfect image on screen. The glitches change with each turn of the object, and with each material. They only appear on the objects themselves, and, it seems, only on certain places. (on other places on an object I never get glitches)

I tried recording a movie of it, but it’s spead up and low quality(probably wrong settings). Still you can see small glitches in this footage. If you scale up the model the glitches become bigger too. This can be seen in the second movie, that shows the glitches while sculpting more clearly.

Glitch video

Glitch video 2

Anyone know how to solve this?
Plakkie

#7

I think it’s an issue with ATI. They cause fits for the Silo folks as well.

#8

Could be, but why is it a problem now, and not with previous versions of Zbrush?

#9

Uhm, because a lot of stuff was rewritten and changed?

#10

:lol: !

Where would I be without Crusoe to explain things to me?

Aurick: have you seen the vids some 3 posts above? What do you think?

#11

i have a geforce 5900xt and the same problem, so no ati thingy, friends. maybe its an intel/p4 problem.

system:

p4 3ghz (prescott)
1 gig mdt ram
5900xt geforce (leadtek)
win xp service pack 1

#12

That would be bad, as probably a lot of people have one of those… But how could a processor give such video trouble?

#13

Pentium D / Geforce 7600 here. Had the same problems. Downloaded the latest drivers and everything was cool ever after. Well at least ZBrush was :wink: