The relationship between Edge crease sharpness and the Quality setting is not specified in the manual like it is in the 2.80 release notes. #76969

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opened 2020-05-22 13:24:59 +02:00 by Vyacheslav Kobozev · 12 comments

Blender Version
Broken: version: 2.83 (sub 17), branch: master, commit date: 2020-05-15 17:29, hash: blender/blender@e5ace51295

Short description of error
I never used creases, because Blender do not have nonlinear and linear not help much. But today I tried, and it seems, currrent creases do not work properly too :(
2020-05-22_14-22-06.mp4

Is there cases where I can see the difference between 0.57 and 0.8?

**Blender Version** Broken: version: 2.83 (sub 17), branch: master, commit date: 2020-05-15 17:29, hash: `blender/blender@e5ace51295` **Short description of error** I never used creases, because Blender do not have nonlinear and linear not help much. But today I tried, and it seems, currrent creases do not work properly too :( [2020-05-22_14-22-06.mp4](https://archive.blender.org/developer/F8547763/2020-05-22_14-22-06.mp4) Is there cases where I can see the difference between 0.57 and 0.8?

Added subscriber: @Vyach

Added subscriber: @Vyach
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Added subscriber: @Alaska

Added subscriber: @Alaska
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I'm not a developer so I can't comment if this is a bug (seems like it). But to get better results, you can set your subsurface modifier quality to 6:
Screenshot from 2020-05-22 23-50-05.png

I'm not a developer so I can't comment if this is a bug (seems like it). But to get better results, you can set your subsurface modifier quality to 6: ![Screenshot from 2020-05-22 23-50-05.png](https://archive.blender.org/developer/F8547798/Screenshot_from_2020-05-22_23-50-05.png)

@Alaska thanks, it is really work.
At quality 8 it goes to .97.

@Alaska thanks, it is really work. At quality 8 it goes to .97.

Changed status from 'Needs Triage' to: 'Archived'

Changed status from 'Needs Triage' to: 'Archived'
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Added subscriber: @EAW

Added subscriber: @EAW
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Using a plane subdivide once in edit mode (to produce the center edge), bent at a right angle, and a subdivide modifier set to viewport = 7. Note: Further testing shows that the level of subdivision is irrelevant; even 1 works.

As @Alaska wrote, increasing the quality will increase the range that the edge crease setting has an effect.

Quality Edge crease stopping point
3 0.56
4 0.64
5 0.71
6 0.78
7 0.84
8 0.90
9 0.95
10 full range

Tested using 2.90.2 8f21f867e715

As there is a setting specifically to control this effect, and it is documented (see the below links), I will close this report. EDIT: I was too slow. =)

https://wiki.blender.org/wiki/Reference/Release_Notes/2.80/Modeling
https://docs.blender.org/manual/en/dev/modeling/modifiers/generate/subdivision_surface.html

Using a plane subdivide once in edit mode (to produce the center edge), bent at a right angle, and a subdivide modifier set to viewport = ~~7~~. Note: Further testing shows that the level of subdivision is irrelevant; even 1 works. As @Alaska wrote, increasing the quality will increase the range that the edge crease setting has an effect. | Quality | Edge crease stopping point| | -- | -- | | 3 | 0.56 | | 4 | 0.64 | 5 | 0.71 |6 | 0.78 |7 | 0.84 |8 |0.90 |9 |0.95 |10 |full range Tested using 2.90.2 8f21f867e715 As there is a setting specifically to control this effect, and it is documented (see the below links), ~~I will close this report.~~ EDIT: I was too slow. =) https://wiki.blender.org/wiki/Reference/Release_Notes/2.80/Modeling https://docs.blender.org/manual/en/dev/modeling/modifiers/generate/subdivision_surface.html

@EAW
The first thing I did — read manual. And there is no mention of such effect. And no such table.
So i think, there should be some words about it in crease-section.

And this useful table too.

| Quality | Edge crease stopping point|
|… |… |

@EAW The first thing I did — read manual. And there is no mention of such effect. And no such table. So i think, there should be some words about it in crease-section. And this useful table too. > | Quality | Edge crease stopping point| > |… |… |
Evan Wilson changed title from Edge crease effect stucks at 0.57 to The relationship between Edge crease sharpness and the Quality setting is not specified in the manual like it is in the 2.80 release notes. 2020-05-22 16:37:18 +02:00
Evan Wilson self-assigned this 2020-05-22 16:37:18 +02:00
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Changed status from 'Archived' to: 'Confirmed'

Changed status from 'Archived' to: 'Confirmed'
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@Vyach I just made that table. I have a feeling that the values will be different for different topology, so I don't think it could be added to to the manual. I will test to confirm this later.

So i think, there should be some words about it in crease-section.

I agree, I'll work on this later today.

@Vyach I just made that table. I have a feeling that the values will be different for different topology, so I don't think it could be added to to the manual. I will test to confirm this later. > So i think, there should be some words about it in crease-section. I agree, I'll work on this later today.

This issue was referenced by 6773

This issue was referenced by 6773
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Changed status from 'Confirmed' to: 'Resolved'

Changed status from 'Confirmed' to: 'Resolved'
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Reference: blender/blender-manual#76969
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