AC3D Forums crease angle: smaller instead of larger?
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5th August 2011, 12:03 PM   #1
rogue
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crease angle: smaller instead of larger?

Quote:
 The angle between adjacent surfaces is measured and if this is larger than the crease angle the surfaces will be smoothed.
Shouldn't it be "smaller" instead of "larger"? It goes on to say that a value of 0 would "force all surfaces to be flat", i.e., would produce NO smoothing. But if angles _larger_ than 0 should be smoothed, it should smooth everything.

 16th August 2011, 09:09 AM #2 Toronto Senior Member Professional user   Join Date: Jan 2008 Posts: 109 Re: crease angle: smaller instead of larger? Yep ............. something is not worded correctly there. Confused wording.
 16th August 2011, 12:35 PM #3 luuckyy Senior Member Professional user     Join Date: Jul 2005 Location: France Posts: 737 Re: crease angle: smaller instead of larger? The manual sentence makes perfect sense for me, if it talks about the inner angle between 2 surfaces. And I suppose this is what it does __________________ OL.
 16th August 2011, 12:59 PM #4 Toronto Senior Member Professional user   Join Date: Jan 2008 Posts: 109 Re: crease angle: smaller instead of larger? When I change the crease angle it seems to smooth the polys if they are less than the crease angle, rather than greater than the crease angle.
19th August 2011, 11:10 AM   #5
rogue
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Join Date: Aug 2011
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Re: crease angle: smaller instead of larger?

Quote:
 Originally Posted by luuckyy The manual sentence makes perfect sense for me, if it talks about the inner angle between 2 surfaces. And I suppose this is what it does ;)
I believe it talks about the angle between the surfaces' normals -- between 0 (same direction) and 180 (opposite direction).

An experiment:
Make a cube.
Set the crease angle to 85.
Then to 95.
It is being "smoothed" at 95.
But the "angle between adjacent surfaces" is 90 whether inner or outer.
And 90 is less than the crease angle of 95.
So the manual shouuld say "if this is *less than* the crease angle the surfaces will be smoothed". (Or should it be "less than or equal to"?)

 20th August 2011, 04:33 AM #6 luuckyy Senior Member Professional user     Join Date: Jul 2005 Location: France Posts: 737 Re: crease angle: smaller instead of larger? Indeed you're right ! __________________ OL.

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