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ANT Landscape Tools - Landscape Eroder not working #93422

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opened 2021-11-27 12:05:48 +01:00 by EliteArmedForce · 58 comments
EliteArmedForce commented 2021-11-27 12:05:48 +01:00
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System Information
Operating system: Ubuntu 20.04.3 LTS
CPU: Intel i5-4210U (4) @ 2.700GHz
Graphics card: AMD ATI Radeon HD 8550M / R5 M230
RAM: 12GB

Blender Version
Broken:
Blender v3.00 release candidate, 2fb8c6805a98, 2021-11-27
Worked:
Blender v2.93.6 release -Works perfectly in this version with similar steps

Short description of error
Runtime error of VertexGroup when creating 'capacity'(i think). In addition, missing necessary VertexGroups of the mesh after clicking "Landscape Eroder" uch as rainmap, avalanced, sediment etc.

File "/home/USER/Program/Blender/BlenderLauncher/daily/blender-3.0.0-candidate+daily.2fb8c6805a98/3.0/scripts/addons/ant_landscape/ant_functions.py", line 1062, in execute
ob.vertex_groups.active = vg

RuntimeError: Error: VertexGroup 'capacity' not found in object 'Landscape'


location: <unknown location>:-1```
Error screenshot:
![Screenshot from 2021-11-27 14-56-29_gimp.png](https://archive.blender.org/developer/F12406835/Screenshot_from_2021-11-27_14-56-29_gimp.png)
[error.blend](https://archive.blender.org/developer/F12406906/error.blend)
**Exact steps for others to reproduce the error**
Based on the default startup or an attached .blend file (as simple as possible).
- Ofc after hide/delete the default cube and activate the A.N.T. Landscape addon.
- Add Mesh -> Landscape (default, as in .blend file attached)
- Open "N" panel, then navigate to "Create" subpanel
- In "Landscape Tools", click "Landscape Eroder" which gives an error.

**Output without error**
Tested in v2.93.6. Repeated same steps.
![Screenshot from 2021-11-27 14-56-29_gimp.png](https://archive.blender.org/developer/F12406769/Screenshot_from_2021-11-27_14-56-29_gimp.png)
[works.blend](https://archive.blender.org/developer/F12406925/works.blend)
**System Information** Operating system: Ubuntu 20.04.3 LTS CPU: Intel i5-4210U (4) @ 2.700GHz Graphics card: AMD ATI Radeon HD 8550M / R5 M230 RAM: 12GB **Blender Version** Broken: Blender v3.00 release candidate, 2fb8c6805a98, 2021-11-27 Worked: Blender v2.93.6 release -Works perfectly in this version with similar steps **Short description of error** Runtime error of VertexGroup when creating 'capacity'(i think). In addition, missing necessary VertexGroups of the mesh after clicking "Landscape Eroder" uch as rainmap, avalanced, sediment etc. ```Python: Traceback (most recent call last): ``` File "/home/__USER__/Program/Blender/BlenderLauncher/daily/blender-3.0.0-candidate+daily.2fb8c6805a98/3.0/scripts/addons/ant_landscape/ant_functions.py", line 1062, in execute ob.vertex_groups.active = vg ``` RuntimeError: Error: VertexGroup 'capacity' not found in object 'Landscape' location: <unknown location>:-1``` Error screenshot: ![Screenshot from 2021-11-27 14-56-29_gimp.png](https://archive.blender.org/developer/F12406835/Screenshot_from_2021-11-27_14-56-29_gimp.png) [error.blend](https://archive.blender.org/developer/F12406906/error.blend) **Exact steps for others to reproduce the error** Based on the default startup or an attached .blend file (as simple as possible). - Ofc after hide/delete the default cube and activate the A.N.T. Landscape addon. - Add Mesh -> Landscape (default, as in .blend file attached) - Open "N" panel, then navigate to "Create" subpanel - In "Landscape Tools", click "Landscape Eroder" which gives an error. **Output without error** Tested in v2.93.6. Repeated same steps. ![Screenshot from 2021-11-27 14-56-29_gimp.png](https://archive.blender.org/developer/F12406769/Screenshot_from_2021-11-27_14-56-29_gimp.png) [works.blend](https://archive.blender.org/developer/F12406925/works.blend)
EliteArmedForce commented 2021-11-27 12:05:48 +01:00
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blender-admin commented 2021-11-27 12:05:48 +01:00
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Pratik Borhade commented 2021-11-27 17:11:48 +01:00
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Changed status from 'Needs Triage' to: 'Confirmed'

Changed status from 'Needs Triage' to: 'Confirmed'
Pratik Borhade commented 2021-12-02 16:21:33 +01:00
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Valera Barashkov commented 2021-12-02 16:56:10 +01:00
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Valera Barashkov commented 2021-12-02 16:56:10 +01:00
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Vertex groups are lost after ant_functions.py, line 1006:

979        g = Grid.fromBlenderMesh(me, vg, self.Ef)
980
981        me = bpy.data.meshes.new(me.name)
...
1005        g.toBlenderMesh(me)
1006        ob.data = me
Vertex groups are lost after ant_functions.py, line 1006: ``` 979 g = Grid.fromBlenderMesh(me, vg, self.Ef) 980 981 me = bpy.data.meshes.new(me.name) ... 1005 g.toBlenderMesh(me) 1006 ob.data = me ```
Pratik Borhade commented 2021-12-06 06:32:55 +01:00
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Jesse Yurkovich commented 2022-02-28 07:52:35 +01:00
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Aditya Nimje self-assigned this 2022-03-01 17:03:55 +01:00
Aditya Nimje commented 2022-03-01 17:03:55 +01:00
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hey did you find the solution for it ?

hey did you find the solution for it ?
Aditya Nimje commented 2022-03-01 17:51:26 +01:00
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I did't understand the solution. Please explain it with steps or send me a short video how to do it.

I did't understand the solution. Please explain it with steps or send me a short video how to do it.
Alparslan commented 2022-03-17 20:46:53 +01:00
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Alparslan commented 2022-03-17 20:46:53 +01:00
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Hey i have also the same problem, how can i solve this? Update i found the solution here
https://developer.blender.org/T74604

Hey i have also the same problem, how can i solve this? Update i found the solution here https://developer.blender.org/T74604
Jesse Yurkovich commented 2022-03-31 20:24:10 +02:00
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EliteArmedForce commented 2022-04-01 15:25:28 +02:00
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In #93422#1315613, @Aditya-Nimje wrote:
hey did you find the solution for it ?

are u asking me(op)? as I find no reply to ur question or user mentions

> In #93422#1315613, @Aditya-Nimje wrote: > hey did you find the solution for it ? are u asking me(op)? as I find no reply to ur question or user mentions
Pratik Borhade commented 2022-04-01 17:32:53 +02:00
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Pratik Borhade commented 2022-04-01 17:36:03 +02:00
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Pratik Borhade commented 2022-04-01 17:36:03 +02:00
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re #74604#1284952
@billhails hi, can you submit the patch at https://developer.blender.org/differential/diff/create/?
Or you want me to do this for you?

re #74604#1284952 @billhails hi, can you submit the patch at https://developer.blender.org/differential/diff/create/? Or you want me to do this for you?
Bill Hails commented 2022-04-24 10:40:33 +02:00
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In #93422#1333713, @PratikPB2123 wrote:
re #74604#1284952
@billhails hi, can you submit the patch at https://developer.blender.org/differential/diff/create/?
Or you want me to do this for you?

Hi sorry I wasn't paying attention. It's fine for you to submit my fix if you like, I don't have a lot of spare time.

> In #93422#1333713, @PratikPB2123 wrote: > re #74604#1284952 > @billhails hi, can you submit the patch at https://developer.blender.org/differential/diff/create/? > Or you want me to do this for you? Hi sorry I wasn't paying attention. It's fine for you to submit my fix if you like, I don't have a lot of spare time.
Jesse Yurkovich commented 2022-05-01 06:07:05 +02:00
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Pratik Borhade commented 2022-07-12 14:03:02 +02:00
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@billhails hi, I've made the patch for you D15432: Fix #93422: ANT Landscape Tools - Landscape Eroder not working
Can you describe your exact changes in patch description?

@billhails hi, I've made the patch for you [D15432: Fix #93422: ANT Landscape Tools - Landscape Eroder not working](https://archive.blender.org/developer/D15432) Can you describe your exact changes in patch description?
Bill Hails commented 2022-07-23 15:27:02 +02:00
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Hi, sorry I've not been very active, having trouble finding the patch description, I followed the link to https://developer.blender.org/D15432 but I'm not familiar with this tool, Ok If I add it here...

A breaking change to the python API means that assigning a new mesh to an object's data now deletes the object's vertex_groups.
The original code was expecting the vertex groups to remain intact after assigning the new eroded mesh.
This patch simply saves the vertex groups before assigning the mesh, then puts them back afterwards.
Other than that there is pure refactoring to reduce the size and complexity of the code.
The actual fix is on lines 966-979.

Hi, sorry I've not been very active, having trouble finding the patch description, I followed the link to https://developer.blender.org/D15432 but I'm not familiar with this tool, Ok If I add it here... ---- A breaking change to the python API means that assigning a new mesh to an object's data now deletes the object's vertex_groups. The original code was expecting the vertex groups to remain intact after assigning the new eroded mesh. This patch simply saves the vertex groups before assigning the mesh, then puts them back afterwards. Other than that there is pure refactoring to reduce the size and complexity of the code. The actual fix is on lines 966-979. ----
Jesse Yurkovich commented 2022-07-28 09:36:10 +02:00
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blender-admin commented 2022-07-29 07:27:53 +02:00
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This issue was referenced by bff8295be5

This issue was referenced by bff8295be576ae2a2cb2c989157ec9fdcaa21c0a
Campbell Barton commented 2022-07-29 07:29:27 +02:00
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Changed status from 'Confirmed' to: 'Resolved'

Changed status from 'Confirmed' to: 'Resolved'
Thomas Dinges commented 2022-07-29 16:13:33 +02:00
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Jesse Yurkovich commented 2022-08-05 21:05:53 +02:00
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Pratik Borhade commented 2022-11-29 03:52:12 +01:00
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Reference: blender/blender-addons#93422
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