"Orbit Around Selection" and "Frame Selected" combination moves 3d viewport camera when I switch Edit mode to Weight Paint mode and rotate 3d viewport camera. #121206

New Issue

Yutaka Fukumoto · 2024-04-29T12:56:25+02:00

Yutaka Fukumoto commented

2024-04-29 12:56:25 +02:00

System Information
Operating system: Windows 10
Graphics card: RTX 2070

Blender Version
Broken: 4.1

Enable "Orbit Around Selection" (Preference - Navigation - Orbit Around Selection) and select vertex and do "Frame Selected". After that change Edit mode to other mode like Weight Paint. Right after that just rotate 3d viewport camera, and you will notice 3d viewport camera moves away from selected vertex.

This is the gif image which shows what happens.

This is the blend file. Try what I said.
orbit around selection.blend

I hope this glitch fixed because I need to zoom in on selected vertex to do something other than edit mode thing like weight painting
and texture painting but when I do this camera always moves and it's impossible,

**System Information** Operating system: Windows 10 Graphics card: RTX 2070 **Blender Version** Broken: 4.1 Enable "Orbit Around Selection" (Preference - Navigation - Orbit Around Selection) and select vertex and do "Frame Selected". After that change Edit mode to other mode like Weight Paint. Right after that just rotate 3d viewport camera, and you will notice 3d viewport camera moves away from selected vertex. This is the gif image which shows what happens. ![Desktop-2024.04.29---19.27.26.gif](/attachments/0afdff3c-114a-4cb9-99be-d31a4606d52e) This is the blend file. Try what I said. [orbit around selection.blend](/attachments/50584369-82e6-4ed9-83f5-5bb7311cc9eb) I hope this glitch fixed because I need to zoom in on selected vertex to do something other than edit mode thing like weight painting and texture painting but when I do this camera always moves and it's impossible,

Desktop-2024.04.29---19.27.26.gif

653 KiB

orbit around selection.blend

870 KiB

Yutaka Fukumoto added the

labels 2024-04-29 12:56:26 +02:00

Yutaka Fukumoto commented

2024-04-29 13:13:54 +02:00

I think this is caused by selected vertex position which isn't shared with other mode. When I select vertex in Edit mode and rotate 3d viewport camera, Orbit Around Selection is executed properly based on selected vertex position which Blender can refer to in Edit mode , but when I select vertex and change to other mode, this vertex position is lost and Orbit Around Selection has no reference point and does weird rotation. Why selected vertex position can't be shared with other mode? This strange rotation occurs in Sculpt mode too.

Philipp Oeser commented

2024-04-29 13:49:54 +02:00

In paint modes, it is actually the last stroke that is taken as the orbit center.
This is intentional (see view3d_orbit_calc_center / BKE_paint_stroke_get_average).

I guess this would be good to mention in the manual (added a PR for this, see blender/blender-manual#104780).

This is intentional behavior though, not a bug in this case, afraid I have to close this one, thx reporting anyways!

In paint modes, it is actually the last stroke that is taken as the orbit center. This is intentional (see `view3d_orbit_calc_center` / `BKE_paint_stroke_get_average`). I guess this would be good to mention in the manual (added a PR for this, see https://projects.blender.org/blender/blender-manual/pulls/104780). This is intentional behavior though, not a bug in this case, afraid I have to close this one, thx reporting anyways!

Philipp Oeser closed this issue

2024-04-29 13:49:58 +02:00

Blender Bot added

and removed

labels 2024-04-29 13:49:59 +02:00

Yutaka Fukumoto commented

2024-04-29 14:01:56 +02:00

but paint mode doesn't have Frame Selected. thanx to that I don't need to zoom in manually. why selected vertex position can't be shared?

Yutaka Fukumoto commented

2024-04-29 14:11:16 +02:00

if it can't be fixed than I would like to know how to emulate texture paint stroke.
I would like to pass Edit mode's selected vertex position to paint mode and just click the vertex before rotating camera.

This is used as sculpt stroke which does nothing but clicking selected vertex position, but I don't know how paint mode stroke works.

strokes =[ {
"name": "Null Stroke",
"is_start": True,
"location": (v_pos),
"mouse": (0, 0),
"mouse_event" : (0, 0),
"pressure": 0,
"size": 0,
"pen_flip" : False,
"time": 0,
"x_tilt": 0,
"y_tilt": 0
},]

if it can't be fixed than I would like to know how to emulate texture paint stroke. I would like to pass Edit mode's selected vertex position to paint mode and just click the vertex before rotating camera. This is used as sculpt stroke which does nothing but clicking selected vertex position, but I don't know how paint mode stroke works. strokes =[ { "name": "Null Stroke", "is_start": True, "location": (v_pos), "mouse": (0, 0), "mouse_event" : (0, 0), "pressure": 0, "size": 0, "pen_flip" : False, "time": 0, "x_tilt": 0, "y_tilt": 0 },]

Philipp Oeser commented

2024-04-29 14:14:51 +02:00

but paint mode doesn't have Frame Selected.

Frame Selected also works in paintmodes (based on average stroke as well), should roughly frame the last stroke. Doesnt this work for you?

> but paint mode doesn't have Frame Selected. `Frame Selected` also works in paintmodes (based on average stroke as well), should roughly frame the last stroke. Doesnt this work for you?

Philipp Oeser commented

2024-04-29 14:21:18 +02:00

if it can't be fixed than I would like to know how to emulate texture paint stroke.
I would like to pass Edit mode's selected vertex position to paint mode and just click the vertex before rotating camera.

The following should work similarly to sculpt (in terms of OperatorStrokeElement), no?

https://docs.blender.org/api/4.2/bpy.ops.paint.html#bpy.ops.paint.image_paint
https://docs.blender.org/api/4.2/bpy.ops.paint.html#bpy.ops.paint.weight_paint

> if it can't be fixed than I would like to know how to emulate texture paint stroke. > I would like to pass Edit mode's selected vertex position to paint mode and just click the vertex before rotating camera. The following should work similarly to sculpt (in terms of `OperatorStrokeElement`), no? https://docs.blender.org/api/4.2/bpy.ops.paint.html#bpy.ops.paint.image_paint https://docs.blender.org/api/4.2/bpy.ops.paint.html#bpy.ops.paint.weight_paint

Yutaka Fukumoto commented

2024-04-29 16:38:26 +02:00

if it can't be fixed than I would like to know how to emulate texture paint stroke.
I would like to pass Edit mode's selected vertex position to paint mode and just click the vertex before rotating camera.

The following should work similarly to sculpt (in terms of OperatorStrokeElement), no?

https://docs.blender.org/api/4.2/bpy.ops.paint.html#bpy.ops.paint.image_paint
https://docs.blender.org/api/4.2/bpy.ops.paint.html#bpy.ops.paint.weight_paint

I tried this one but it won't work.
I get this error
RuntimeError: Operator bpy.ops.paint.weight_paint.poll() failed, context is incorrect

import bpy

for a in bpy.context.screen.areas:
    if a.type == 'VIEW_3D':
        if bpy.context.object.mode != 'WEIGHT_PAINT':
            bpy.ops.object.mode_set(mode='WEIGHT_PAINT')

            strokes =[ {
              "name": "Null",
              "is_start":True, 
              "location":(0.0, 0.0, 0.0),
              "size": 1.0,
              "time":0.0,
              "pressure": 0.0,
              "pen_flip":False,
              "mouse":(0.0, 0.0) 
            },]

            bpy.ops.paint.weight_paint(stroke= strokes, mode='NORMAL')

why emulating weight paint stroke fails?

> > if it can't be fixed than I would like to know how to emulate texture paint stroke. > > I would like to pass Edit mode's selected vertex position to paint mode and just click the vertex before rotating camera. > > The following should work similarly to sculpt (in terms of `OperatorStrokeElement`), no? > > https://docs.blender.org/api/4.2/bpy.ops.paint.html#bpy.ops.paint.image_paint > https://docs.blender.org/api/4.2/bpy.ops.paint.html#bpy.ops.paint.weight_paint I tried this one but it won't work. I get this error RuntimeError: Operator bpy.ops.paint.weight_paint.poll() failed, context is incorrect ``` import bpy for a in bpy.context.screen.areas: if a.type == 'VIEW_3D': if bpy.context.object.mode != 'WEIGHT_PAINT': bpy.ops.object.mode_set(mode='WEIGHT_PAINT') strokes =[ { "name": "Null", "is_start":True, "location":(0.0, 0.0, 0.0), "size": 1.0, "time":0.0, "pressure": 0.0, "pen_flip":False, "mouse":(0.0, 0.0) },] bpy.ops.paint.weight_paint(stroke= strokes, mode='NORMAL') ``` why emulating weight paint stroke fails?

Philipp Oeser commented

2024-04-30 08:57:11 +02:00

if it can't be fixed than I would like to know how to emulate texture paint stroke.
I would like to pass Edit mode's selected vertex position to paint mode and just click the vertex before rotating camera.

The following should work similarly to sculpt (in terms of OperatorStrokeElement), no?

https://docs.blender.org/api/4.2/bpy.ops.paint.html#bpy.ops.paint.image_paint
https://docs.blender.org/api/4.2/bpy.ops.paint.html#bpy.ops.paint.weight_paint

I tried this one but it won't work.
I get this error
RuntimeError: Operator bpy.ops.paint.weight_paint.poll() failed, context is incorrect
import bpy

for a in bpy.context.screen.areas:
    if a.type == 'VIEW_3D':
        if bpy.context.object.mode != 'WEIGHT_PAINT':
            bpy.ops.object.mode_set(mode='WEIGHT_PAINT')

            strokes =[ {
              "name": "Null",
              "is_start":True, 
              "location":(0.0, 0.0, 0.0),
              "size": 1.0,
              "time":0.0,
              "pressure": 0.0,
              "pen_flip":False,
              "mouse":(0.0, 0.0) 
            },]

            bpy.ops.paint.weight_paint(stroke= strokes, mode='NORMAL')
why emulating weight paint stroke fails?

Could you open a separate report for this? (makes more sense to handle this isolated from this issue). Feel free to ping me already in the new report, thx in advance!

> > > if it can't be fixed than I would like to know how to emulate texture paint stroke. > > > I would like to pass Edit mode's selected vertex position to paint mode and just click the vertex before rotating camera. > > > > The following should work similarly to sculpt (in terms of `OperatorStrokeElement`), no? > > > > https://docs.blender.org/api/4.2/bpy.ops.paint.html#bpy.ops.paint.image_paint > > https://docs.blender.org/api/4.2/bpy.ops.paint.html#bpy.ops.paint.weight_paint > > I tried this one but it won't work. > I get this error > RuntimeError: Operator bpy.ops.paint.weight_paint.poll() failed, context is incorrect > ``` > import bpy > > for a in bpy.context.screen.areas: > if a.type == 'VIEW_3D': > if bpy.context.object.mode != 'WEIGHT_PAINT': > bpy.ops.object.mode_set(mode='WEIGHT_PAINT') > > strokes =[ { > "name": "Null", > "is_start":True, > "location":(0.0, 0.0, 0.0), > "size": 1.0, > "time":0.0, > "pressure": 0.0, > "pen_flip":False, > "mouse":(0.0, 0.0) > },] > > bpy.ops.paint.weight_paint(stroke= strokes, mode='NORMAL') > ``` > why emulating weight paint stroke fails? Could you open a separate report for this? (makes more sense to handle this isolated from this issue). Feel free to ping me already in the new report, thx in advance!

Yutaka Fukumoto commented

2024-04-30 18:53:28 +02:00

if it can't be fixed than I would like to know how to emulate texture paint stroke.
I would like to pass Edit mode's selected vertex position to paint mode and just click the vertex before rotating camera.

The following should work similarly to sculpt (in terms of OperatorStrokeElement), no?

https://docs.blender.org/api/4.2/bpy.ops.paint.html#bpy.ops.paint.image_paint
https://docs.blender.org/api/4.2/bpy.ops.paint.html#bpy.ops.paint.weight_paint

I tried this one but it won't work.
I get this error
RuntimeError: Operator bpy.ops.paint.weight_paint.poll() failed, context is incorrect
import bpy

for a in bpy.context.screen.areas:
    if a.type == 'VIEW_3D':
        if bpy.context.object.mode != 'WEIGHT_PAINT':
            bpy.ops.object.mode_set(mode='WEIGHT_PAINT')

            strokes =[ {
              "name": "Null",
              "is_start":True, 
              "location":(0.0, 0.0, 0.0),
              "size": 1.0,
              "time":0.0,
              "pressure": 0.0,
              "pen_flip":False,
              "mouse":(0.0, 0.0) 
            },]

            bpy.ops.paint.weight_paint(stroke= strokes, mode='NORMAL')
why emulating weight paint stroke fails?
Could you open a separate report for this? (makes more sense to handle this isolated from this issue). Feel free to ping me already in the new report, thx in advance!

Separate report for this python script? isn't it just simply I misunderstand python format of texture paint stroke? Or is it simply a glitch that needs to be reported? If it is a glitch I will report.

> > > > if it can't be fixed than I would like to know how to emulate texture paint stroke. > > > > I would like to pass Edit mode's selected vertex position to paint mode and just click the vertex before rotating camera. > > > > > > The following should work similarly to sculpt (in terms of `OperatorStrokeElement`), no? > > > > > > https://docs.blender.org/api/4.2/bpy.ops.paint.html#bpy.ops.paint.image_paint > > > https://docs.blender.org/api/4.2/bpy.ops.paint.html#bpy.ops.paint.weight_paint > > > > I tried this one but it won't work. > > I get this error > > RuntimeError: Operator bpy.ops.paint.weight_paint.poll() failed, context is incorrect > > ``` > > import bpy > > > > for a in bpy.context.screen.areas: > > if a.type == 'VIEW_3D': > > if bpy.context.object.mode != 'WEIGHT_PAINT': > > bpy.ops.object.mode_set(mode='WEIGHT_PAINT') > > > > strokes =[ { > > "name": "Null", > > "is_start":True, > > "location":(0.0, 0.0, 0.0), > > "size": 1.0, > > "time":0.0, > > "pressure": 0.0, > > "pen_flip":False, > > "mouse":(0.0, 0.0) > > },] > > > > bpy.ops.paint.weight_paint(stroke= strokes, mode='NORMAL') > > ``` > > why emulating weight paint stroke fails? > > Could you open a separate report for this? (makes more sense to handle this isolated from this issue). Feel free to ping me already in the new report, thx in advance! Separate report for this python script? isn't it just simply I misunderstand python format of texture paint stroke? Or is it simply a glitch that needs to be reported? If it is a glitch I will report.

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"Orbit Around Selection" and "Frame Selected" combination moves 3d viewport camera when I switch Edit mode to Weight Paint mode and rotate 3d viewport camera. #121206