2.8 Follow Path bug #62601

New Issue

楊景貴 · 2019-03-15T03:23:12+01:00

楊景貴 commented

2019-03-15 03:23:12 +01:00

{F6826940}System Information
Operating system: Windows-10-10.0.17134 64 Bits
Graphics card: Quadro K620/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 386.01

Blender Version
Broken: version: 2.80 (sub 48), branch: master, commit date: 2019-03-13 19:14, hash: bbc3ee09e4
Worked: (optional)

Short description of error

當我在2.79做同樣的事
物題不會有偏移

When I did the same thing at 2.79
Objects will not have an offset

Exact steps for others to reproduce the error
ctrl+P > Follow Path
......Abnormal offset

{[F6826940](https://archive.blender.org/developer/F6826940/Follow_Path_BUG.blend)}**System Information** Operating system: Windows-10-10.0.17134 64 Bits Graphics card: Quadro K620/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 386.01 **Blender Version** Broken: version: 2.80 (sub 48), branch: master, commit date: 2019-03-13 19:14, hash: `bbc3ee09e4` Worked: (optional) **Short description of error** 當我在2.79做同樣的事物題不會有偏移 When I did the same thing at 2.79 Objects will not have an offset **Exact steps for others to reproduce the error** ctrl+P > Follow Path ......Abnormal offset ![2019-03-15 08_45_51-Window.png](https://archive.blender.org/developer/F6826946/2019-03-15_08_45_51-Window.png) ![2019-03-15 08_49_03-Window.png](https://archive.blender.org/developer/F6826949/2019-03-15_08_49_03-Window.png)

楊景貴 commented

2019-03-15 03:23:12 +01:00

Added subscriber: @Yang_Jing_Gui

楊景貴 commented

2019-03-15 03:26:08 +01:00

我的母語是繁體中文
我都是用 google 的翻譯
如果有不清楚的地方，或是翻譯上的誤會
還請包涵
My native language is Traditional Chinese.
I use google's translation
If there is something unclear, or misunderstanding in translation
Please also bear

我的母語是繁體中文我都是用 google 的翻譯如果有不清楚的地方，或是翻譯上的誤會還請包涵 My native language is Traditional Chinese. I use google's translation If there is something unclear, or misunderstanding in translation Please also bear

Martin Capitanio commented

2019-03-15 10:03:46 +01:00

Added subscriber: @capnm

Martin Capitanio commented

2019-03-15 10:03:46 +01:00

Seems dependent on state of the 'Follow' check box:

selected v2.79 OK, v2.8 broken
unselected v2.79 broken, v2.8 OK

Seems dependent on state of the 'Follow' check box: * selected v2.79 OK, v2.8 broken * unselected v2.79 broken, v2.8 OK ![follow.png](https://archive.blender.org/developer/F6828745/follow.png)

William Reynish commented

2019-03-15 11:10:37 +01:00

Added subscribers: @ideasman42, @WilliamReynish

William Reynish commented

2019-03-15 11:10:38 +01:00

Tbh I don't even see why we should keep this feature at all. For many years we have had a constraints system for this kind of thing.

This is one of the features that is a remnant from before we had constraints inside Blender.

@ideasman42 What do you think? Is there a reason we've kept this around?

Tbh I don't even see why we should keep this feature at all. For many years we have had a constraints system for this kind of thing. This is one of the features that is a remnant from before we had constraints inside Blender. @ideasman42 What do you think? Is there a reason we've kept this around?

Campbell Barton commented

2019-03-15 11:12:46 +01:00

Think we could remove, check w/ other devs & guys in the studio?

William Reynish commented

2019-03-15 11:17:02 +01:00

Added subscribers: @Sergey, @brecht

William Reynish commented

2019-03-15 11:17:02 +01:00

@brecht @Sergey

What do you think? Is this not a good time to clean this out?

@brecht @Sergey What do you think? Is this not a good time to clean this out?

Sergey Sharybin commented

2019-03-15 13:10:48 +01:00

I am against REMOVAL of features at bcon3. Might consider REPLACING them, with proper do-versioning.

To me it doesn't seem to be an issue with "Follow" option. It appears to be working correct to me. What doesn't appear correct to me is the calculation of an inverse parent matrix (which sound similar to #60623).

I am against REMOVAL of features at bcon3. Might consider REPLACING them, with proper do-versioning. To me it doesn't seem to be an issue with "Follow" option. It appears to be working correct to me. What doesn't appear correct to me is the calculation of an inverse parent matrix (which sound similar to #60623).

Brecht Van Lommel commented

2019-03-15 14:24:16 +01:00

I agree with @sergey.

Martin Capitanio commented

2019-03-15 15:19:50 +01:00

To me it doesn't seem to be an issue with "Follow" option. It appears to be working correct to me.

Yes, I only listed cases where the initial offset (this bug) appears.

> To me it doesn't seem to be an issue with "Follow" option. It appears to be working correct to me. Yes, I only listed cases where the initial offset (this bug) appears.

blender-admin commented

2019-03-15 16:15:37 +01:00

This issue was referenced by 9ad9d38786

This issue was referenced by 9ad9d38786c5d9f3e7f288f2e8255f3e7722da1f

Philipp Oeser commented

2019-03-15 16:21:27 +01:00

Added subscriber: @lichtwerk

Philipp Oeser commented

2019-03-15 16:21:27 +01:00

Seems indeed very similar to #60623.
This time the flag on the evaluated curve CU_FOLLOW is no set, leading to a different behaviour in ob_parcurve()

(possible) fix incoming...

Seems indeed very similar to #60623. This time the flag on the evaluated curve `CU_FOLLOW` is no set, leading to a different behaviour in `ob_parcurve()` (possible) fix incoming...

Philipp Oeser commented

2019-03-15 18:52:56 +01:00

Changed status from 'Open' to: 'Resolved'

Philipp Oeser closed this issue

2019-03-15 18:52:56 +01:00

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2.8 Follow Path bug #62601