I’m having a issue with the Clay Buildup brush that I’m wondering if anyone else is seeing. Basically, I’ll be sculpting along, fairly quickly and on some random stroke, I’ll see this flash of red line that will go from my brushtip off the side of the Zdoc. When this happens, a stroke appears following that line on the model and I have to undo a few steps to get rid of it. It’s an annoyance and I’m wondering if I have something set or unset that I could change to fix it? Has anyone else seen this behavior?
ClayBuildup uses the Lazy Mouse mode. That’s the red line that you’re seeing. It sounds like what is happening is that somehow you’re getting a stray input that is off the canvas. This is why you see that flash of the Lazy Mouse line.
If you’re using a tablet with batteries for the pen you might want to check to make sure that the batteries are strong. You might also need to ensure that your tablet is calibrated properly.
This happens to me periodically, too. I use a Cintiq. No batteries. I calibrated it with a Wacom representitive. I’m not sure what is going on. But at least it seems that lazy mouse crashing is fixed!!
Will
Aurick,
I’ve checked my manual, and I don’t think there’s a procedure for calibrating the Intuos tablets. I can test and get readouts of what numbers the various devices are dumping back to the system, but that’s about the extent of it. There is calibration for a Cintiq, which makes sense, because you have to match up with a monitor embedded in the tablet. My intuos is also wired, so no batteries to be the issue. I can check for a driver update I suppose, perhaps there’s some error in the current revision that’s causing the blip. Any other ideas?
Update. No go on driver updates. Most recent. It’s very intermittent, so we’ll just have to live with it I guess.
yeah this is definitely a bug in zbrush. Happens to me too, I have an intuos 3 at home, and an intuos 4 at work. Always with the clay buildup brush, and it’s very random but happens all the time.
yeah, thought i was crazy…getting the same thing. Reminds me of painting in Photoshop if you are shift+clicking and you get a straight line of the brush. I have tried calibrating…still see it on both my machines with different wacoms and now the cintiq.
I love the clay buildup brush, but this makes it unusable. Can we get a workaround, since we all know we won’t see a patch.
Hey Nimajneb
Could you put up an image of what this looks like when you run into the issue. I just want to double check this to something else.
Thank you. 
Paul
I can try, but it’s a very fast thing and I don’t see how I could screen grab it when the red lines on the screen, it’s there and gone too fast. I can show the effect easily enough. Would that be enough to help you? Maybe a video, that might catch it.
Some more information would be useful:
- If you turn off Lazy Mouse for the ClayBuildup brush does the issue still occur?
- Does it happen with symmetry on/off or both?
- Does having Perspective on/off make any difference?
i get this allllll the time as well, its sooo frustrating. i also have a problem where the tool will zoom(or scale in zbrush) very close into view at random with that brush…
gabo1991: Still trying to catch this little SOB on camera. I’ve recorded three short sessions, but the 15fps frame rate wasn’t enough to catch it when it happened. Also, in true car mechanic fashion, now that I want it to happen it’s not. Will keep on it.
marcus_civis: #1, I’m not sure of. As I said, it’s being cagey. #2 I can confirm, happens with symmetry off. I’m working a single hand at the moment, so it’s been off the whole time with the piece and it’s happened a few times. #3, perspective disabled, not sure about this one either. It’s so intermittent and unpredictable at this point, I’ll have to spend more time trying to eliminate variables.
Thank you for trying to get this on video. If you are able to capture this by all means send it my way. It may be easier for you to click record on in the ZScript Palette. This will just record the session as you work. When you click on End Rec then you will have a text file that you will put up for us to test with.
Thank you for all the help.
Paul
Hi Paul. I don’t know if this helps, but the other day I was using the stitch brush when this event occurred. The result was a perfect line of stitches across my mesh. The odd thing was, they happened all at once, perfectly spaced. In other words, usually you have to drag the stroke along for each stitch to roll out, but this just did it - ZAP - a whole line of them. Also, whenever it happens it seems to happen in about a 10:00 direction. I’m right handed, so it snaps a line toward the upper right corner of the screen. Curious.
Will
Hey Will
Can you send me an image of the line that you are getting? You are just clicking undo right and everything is good.
Paul
I’ll grab a pic the next time it happens. But it only happens to me about once a day. And, yes, Control + Z fixes it fine for me. More a curiosity than anything else.
Well, I recorded a few sculpting sessions only to run into another problem with zscript recording. Basically, from what I can tell, zscript recording appears to be garbled in z4. So I’m still at square one with this in getting info for you folks. I can confirm however that this doesn’t just happen with Clay Buildup now. It’s a lazymouse issue. Happend to me using the DamStandard brush on a recent sketch.
I also get the red lazy mouse line from the cursors to the left top corner of the canvas (or was it screen) for a fraction of second, a single stroke seems to be applied and you sculpt normal after that.
It is quite annoying because it happens really fast and if you will not notice it then you have some straight line sculpted in along your model which later on might not be fun to fix.
For me this seems to be Zbrush 4 only problem. Intuos 3 + Vista 64. I never saw it happen before in Zbrush 3.5. I got it with standard brush so it does not seem to be brush related.
i get this to, only when using lazy mouse. I can confirm that it is also starts from the top left about 10 o clock and goes to the cursor. Happens to me on both a cintiq and wacom intous. Usually only when drawing quickly.