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View Full Version : A definition of Smoothing and Thresholds



Fabio
04-20-2005, 04:52 AM
Whipped this one up this morning too -

http://www.meshweaver.com/frames/tutorials/smoothing.htm

Karmacop
04-20-2005, 05:52 AM
Nice, I'm sure a lot of people will find this helpful!

stib
04-22-2005, 01:55 AM
nice tute. I've just been ignoring that smoothing threshold and kludging around the errors, but that is set to change

thanks

Lukesutherland
04-22-2005, 03:37 AM
hey cool - appreciatte the knowledge :)

I have always just created a different surface wiithout smoothing to fix these errors...

thx

NanoGator
04-22-2005, 07:50 PM
Just like your page illustrates, it's great for quickly making 'rounded edges'. Technically they're not rounded, but since the smoothing makes the appearance of rounded edges, it works with little overhead.

Jeff Scheetz showed something like this once, it radically affected how I model. That's why nearly ALL the edges appear slightly rounded in this image (http://www.nanogator.com/3d_artwork/svs-3500/full-svs-3500-head.jpg) I did. Lots of bandsaw, lots of bevel. Nearly every single polygon in this model has a smoothing threshold at 179 degrees.

annaleah
04-22-2005, 10:03 PM
Are these AA errors or is my monitor messing up?

T-Light
04-23-2005, 11:13 AM
annaleah: Are these AA errors or is my monitor messing up?

Nope, not your monitor.

Nanogator didn't mention how the image was rendered, but I've had similar problems with boolean ops on polygons rendering in the same way (bad aliasing), didn't matter if the image was rendered in fprime or LW, regardless of time given or passes made.

Anyone?

NanoGator
04-23-2005, 04:24 PM
Sharpen filter, actually. :D

T-Light
04-24-2005, 12:27 AM
Nanogator: Sharpen filter, actually. :D

:D Yup, that would do it.

Unfortunately, the AA problems I'm having even show up on 12 pass Gaussian :confused:

NanoGator
04-24-2005, 12:36 AM
:D Yup, that would do it.

Unfortunately, the AA problems I'm having even show up on 12 pass Gaussian :confused:

Hehe. Funny thing is, I never really notice that. I dunno if I'm just blind to it or just used to aliasing.

That camera, was a pain in the bootay to render, though. All those edges made shadows a serious problem. I had to use big area lights and then tweak the anti-aliasing to remove some of the grain. Didn't quite work.

meanlebh
04-24-2005, 10:34 AM
great tut, very clear and easy to understand. i too am one of those people who usually just leaves the setting at 89.5, but now i will certainly pay more attention to this. thanks.

object
04-24-2005, 10:22 PM
Fabio, thanks for the smoothing info, very nice.