Ribbed lathe problem

[Wegg]

Weird. . .

happens here too.

Its a bug!

Send it to steve!

[My Fault]

Very weird. When I increased subdivisions to the max it went away in real time, but it was definitely there at lower subdivided levels. Didn't get it in final render though.

Definitely send that puppy to Steve

[John Keates]

I get it in all levels of sub division and in all render types. I have sent it to Steve twice, once about a month ago and once some time before that. I am amazed that it is still there and that no one else seems to have noticed it.

[Wegg]

Originally posted by John Keates
I get it in all levels of sub division and in all render types. I have sent it to Steve twice, once about a month ago and once some time before that. I am amazed that it is still there and that no one else seems to have noticed it.

Hastastic! ;)

[PJC]

Hmm,

I made a 2 point spline, then hit "y" a couple of times to subdivide it and then lathed with 8 cross sections....slight ribbing...

http://www.ccpots.com/PJCdemo/AMTESTS/conesw.JPG

http://www.ccpots.com/PJCdemo/AMTESTS/cones.JPG

http://www.ccpots.com/PJCdemo/AMTESTS/coner.JPG

is this what you guys are doing?

- pjc

[phil3d]

John, when you reported this, did you show steps that included using a lathe value of less the 8? If not when Steve tested it, it might have looked fine if he has his lathe values set that high by default. As you can see in pjc's reply. The lower the lathe value the more noticable the problem is. I can see why no one else seems to have run into this.

[John Keates]

I sent a model with the spline that I lathed then I basically said "Lathe this with 4 segments" (as far as I remember). The default is 4 segments so that should be assumed I guess. The spline is on a 45% angle.

[PJC]

I always thought default for lathe was 8. But I could be wrong. I still think there is something wonky going on. Even in my example, the segment that ends the sweep has a slight ribbing.

- pjc

[Obnomauk]

Well that is certainly the weirdest thing I have ever seen.
Get the same thing on my Mac, can't say that I ever noticed it till now though. If you want to really see it in action lathe with a setting of 3.

I'll submit a bug report on this to steve too.

-David Rogers

[My Fault]

Oooh, ouch, it really shows up on the lower lathe settings!

[Wegg]

support@hash.com

The more people report the same problem. . . the better chance it has of getting through the Steve filter.

[Obnomauk]

Got a reply from Steve.

This is apparently not a bug, weird but true. it has to do with how they calculate surfaces. And has been around forever. I just rebooted to classic and ran it through 8.0 (the oldest version I still have installed) and sure enough there it is. weird.

Steve is going to see if martin can give me a technical explanation. If he does I'll let you guys know.

-David

[My Fault]

Uhhhh, I don't know about anybody else, but I think it is still something that should be fixed.

[Wegg]

Bugger that. . .

I never see ribs in any of my models. They should concentrate on ditching the damn MFCs they are using to get over the video card problems. . .

Wegg <---- Backyard Quarterback.

[Obnomauk]

I'm with wegg there. if nobody has noticed them from v8 till now (and earlier it seems) they can probably wait.

-David Rogers

[My Fault]

True, but what an odd little problem.

[Wegg]

HA! You should SEE the crap we have to work around in LW. There are a gabillion of these "odd little problems".

Shadow accuracy on raytraced shadows, procedural textures freaking out if you leave "double sided" on parts of the model. Screamernet randomly not finding plugins. Hypervoxels not baking correctly. . .

Their tech support tries to help but we had to work around them in order to get our show finished.

Its just the nature of 3D I'm afraid. . .

Crashes are kind of hard to work around. . .

[John Keates]

Well hang on one minute!... So that is an un-avoidable thing then? Well how is it that my work-around of extruding a spline ring instead of lathing works? There is no way that they can convince me that they cannot solve this problem.

Oh, and I have a few more of those babies up my sleave as well.

:applause: <--- an experiment in visual sarcasm.

Oh, just read your last post Wegg, didn't see it before. Well If all 3D programs are like that then hell, I am going back to painting.

[Wegg]

Not all 3D programs crash randomly but yes. . . every single 3D application on the market has its quirks and odd behaviours that you have to learn to live with.

[phil3d]

John, you can always apply porcelain.mat to the object. It clears up the effect just fine - even at a lathe section of 4.

[John Keates]

Ah yes, that would do it. I use porcilain all the time now so I guess that there is no problem - sorry for the false allarm.

Bloody odd though isn't it?

[Bugle]

ribbed models increase pleasure and sensitivity! IT'S A FEATURE YOU FOOLS!!!

:P

[Wegg]

Good one.

[John Keates]

Originally posted by Bugle
ribbed models increase pleasure and sensitivity! IT'S A FEATURE YOU FOOLS!!!

:P

He he he:)

Well I don't need such devices to give my costomers pleasure, I just make sure my models are firmly made and of handsome proportion.

[Kevin Sanderson]

Originally posted by John Keates
He he he:)

Well I don't need such devices to give my costomers pleasure, I just make sure my models are firmly made and of handsome proportion.


I kinda like Jo Guest as a model. ;)

(lovely British glamour model for those who don't know...who looks as good as ever at 31.)

John, you gotta know who she is...

I've been trying to duplicate her skin texture forever.

[John Keates]

Yes, I know Jo well. She is a great bastion of British culture. I read that she was going to retire but she still seems to be going strong like you say. She has educated generations of Brits.

Maybe some more research is all that you need to get that skin texture. ;)

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