Grease Pencil sculpt tool affecting strokes behind camera #99053

New Issue

Rens · 2022-06-21T14:37:34+02:00

Rens commented

2022-06-21 14:37:34 +02:00

System Information
Operating system: Windows 11 Home
Graphics card: Nvidia GeForce MX350

Blender Version
Broken: 3.1.2, cc66d1020c, master, 2022-03-31
Worked: ?

Short description of error
If the 3D view camera has strokes in front of it (visible on screen) as well as behind it (not visible on screen), in Grease Pencil's Sculpt Mode, using the grab tool will affect not only the strokes that you can see, but also the ones behind the camera that you do not see.

Exact steps for others to reproduce the error

Move the Camera object to the origin
Create an empty Grease Pencil object
Place the 3D cursor a little bit in front of the Camera object, set the Stroke Placement to 3D Cursor and the Drawing Plane to View. Align the 3D view to the active camera object.
Draw some strokes, make sure to cover a good portion of the screen. The strokes will be visible.
Rotate the active camera object around the Z-axis 180 degrees. Move the 3D cursor to again be a bit in front of the camera and make sure the 3D view is aligned to the active camera object again.
Draw some more strokes. They will be visible, while the strokes from before are now no longer visible since they are behind the camera.
Go to Sculpt Mode and select the grab tool.
Grab and manipulate some strokes that you can see.

Expected outcome: only the strokes from step 6 are manipulated, and the ones from step 4 are not.
Actual outcome: both the strokes from step 6 and step 4 are manipulated.

**System Information** Operating system: Windows 11 Home Graphics card: Nvidia GeForce MX350 **Blender Version** Broken: 3.1.2, cc66d1020c3b, master, 2022-03-31 Worked: ? **Short description of error** If the 3D view camera has strokes in front of it (visible on screen) as well as behind it (not visible on screen), in Grease Pencil's Sculpt Mode, using the grab tool will affect not only the strokes that you can see, but also the ones behind the camera that you do not see. **Exact steps for others to reproduce the error** 1. Move the Camera object to the origin 2. Create an empty Grease Pencil object 3. Place the 3D cursor a little bit in front of the Camera object, set the Stroke Placement to 3D Cursor and the Drawing Plane to View. Align the 3D view to the active camera object. 4. Draw some strokes, make sure to cover a good portion of the screen. The strokes will be visible. 5. Rotate the active camera object around the Z-axis 180 degrees. Move the 3D cursor to again be a bit in front of the camera and make sure the 3D view is aligned to the active camera object again. 6. Draw some more strokes. They will be visible, while the strokes from before are now no longer visible since they are behind the camera. 7. Go to Sculpt Mode and select the grab tool. 8. Grab and manipulate some strokes that you can see. Expected outcome: only the strokes from step 6 are manipulated, and the ones from step 4 are not. Actual outcome: both the strokes from step 6 and step 4 are manipulated.

Rens commented

2022-06-21 14:37:34 +02:00

Added subscriber: @Rens-de-Jonge

Omar Emara commented

2022-06-22 11:37:51 +02:00

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

Antonio Vazquez commented

2022-06-22 15:21:04 +02:00

Added subscriber: @antoniov

Antonio Vazquez commented

2022-06-22 15:21:04 +02:00

This is something not supported. Actually, there isn't any check if the stroke if in back of the camera. We must set this a know issue.

Philipp Oeser removed the

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Grease Pencil sculpt tool affecting strokes behind camera #99053