OpenGl Depth Picking not selecting the front-most object #76541

New Issue

Pasang Bomjan · 2020-05-08T12:46:42+02:00

Pasang Bomjan commented

2020-05-08 12:46:42 +02:00

System Information
Operating system: Windows-10-10.0.18362-SP0 64 Bits
Graphics card: GeForce RTX 2060/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 445.87

Broken:
2.90 (sub 0), branch: master, commit date: 2020-05-10 13:42, hash: 51ac411ce8
2.83 (sub 15), branch: master, commit date: 2020-05-06 16:18, hash: 9605c26166
Worked:
2.83 (sub 13), branch: master, commit date: 2020-04-08 21:23, hash: 1239cab11f

Short description of error
OpenGl Depth Picking is having issues when selecting the front-most object.

With that checked, it is expected that the red block will be selected first. But the innermost block is selected first.
When you uncheck it, the red box is selected on first click.

Open the given example file, In the left viewport, select-drag the red rectangle. You can see the innermost rectangle being translated instead. This happens both in orthographic and perspective views.

It works if I remove the mirror modifier.

OpenGL depth pick bug.mp4
OpenGL depth pick bug.blend

**System Information** Operating system: Windows-10-10.0.18362-SP0 64 Bits Graphics card: GeForce RTX 2060/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 445.87 **Broken:** 2.90 (sub 0), branch: master, commit date: 2020-05-10 13:42, hash: `51ac411ce8` 2.83 (sub 15), branch: master, commit date: 2020-05-06 16:18, hash: `9605c26166` **Worked:** 2.83 (sub 13), branch: master, commit date: 2020-04-08 21:23, hash: `1239cab11f` **Short description of error** OpenGl Depth Picking is having issues when selecting the front-most object. With that *checked*, it is expected that the red block will be selected first. But the innermost block is selected first. When you uncheck it, the red box is selected on first click. Open the given example file, In the left viewport, select-drag the red rectangle. You can see the innermost rectangle being translated instead. This happens both in orthographic and perspective views. It works if I remove the mirror modifier. ![Screenshot.png](https://archive.blender.org/developer/F8520431/Screenshot.png) [OpenGL depth pick bug.mp4](https://archive.blender.org/developer/F8527243/OpenGL_depth_pick_bug.mp4) [OpenGL depth pick bug.blend](https://archive.blender.org/developer/F8520424/OpenGL_depth_pick_bug.blend)

Pasang Bomjan commented

2020-05-08 12:46:42 +02:00

Added subscriber: @Pasang

Pasang Bomjan changed title from ~~OpenGl Deapth Picking broken in orthographic view~~ to OpenGl Depth Picking broken in orthographic view

2020-05-08 12:49:40 +02:00

Philipp Oeser commented

2020-05-08 12:59:34 +02:00

Added subscriber: @lichtwerk

Philipp Oeser commented

2020-05-08 12:59:34 +02:00

Should be fixed already, was reported before, see #75958 (Blender Crashes when an Object is selected after unchecking OpenGL Depth Picking), will merge these reports...

Philipp Oeser commented

2020-05-08 12:59:43 +02:00

Closed as duplicate of #75958

Philipp Oeser closed this issue

2020-05-08 12:59:43 +02:00

Pasang Bomjan commented

2020-05-09 08:40:21 +02:00

@lichtwerk, This is not the same bug as #75958. Please reopen the task.

Philipp Oeser commented

2020-05-09 09:32:23 +02:00

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

Philipp Oeser reopened this issue

2020-05-09 09:32:23 +02:00

Philipp Oeser commented

2020-05-09 09:32:23 +02:00

Sorry about this

Ankit Meel commented

2020-05-10 14:55:04 +02:00

Added subscriber: @ankitm

Ankit Meel commented

2020-05-10 14:55:04 +02:00

I don't understand, only the red ones move:

I don't understand, only the red ones move: ![Screenshot 2020-05-10 at 18.24.39.png](https://archive.blender.org/developer/F8526251/Screenshot_2020-05-10_at_18.24.39.png)

Pasang Bomjan commented

2020-05-11 05:55:53 +02:00

@ankitm, I've updated the task description with a video of what I mean.

Ankit Meel commented

2020-05-11 06:49:06 +02:00

If you keep clicking on the overlapping blocks, it'll cycle through all the objects under that dot. Then you can move the correct object.
It would've been a bug if the red block was selected & upon moving, the black one moved.

If you keep clicking on the overlapping blocks, it'll cycle through all the objects under that dot. Then you can move the correct object. It would've been a bug if the red block was selected & upon moving, the black one moved.

Pasang Bomjan commented

2020-05-11 08:29:23 +02:00

If you keep clicking on the overlapping blocks, it'll cycle through all the objects under that dot.

I moved the mouse away and deselected after every selection. So it should not cycle through the objects. The bug in the first place is that it doesn't select the front-most object.
If I turn of Depth Picking from the preferences, it works. It also works when I turn off the y-mirror for the red block.

REC.mp4

>If you keep clicking on the overlapping blocks, it'll cycle through all the objects under that dot. I moved the mouse away and deselected after every selection. So it should not cycle through the objects. The bug in the first place is that it doesn't select the front-most object. If I turn of Depth Picking from the preferences, it works. It also works when I turn off the y-mirror for the red block. [REC.mp4](https://archive.blender.org/developer/F8527353/REC.mp4)

Ankit Meel changed title from ~~OpenGl Depth Picking broken in orthographic view~~ to OpenGl Depth Picking not selecting frontmost object in orthographic view

2020-05-11 13:40:34 +02:00

Ankit Meel commented

2020-05-11 13:40:34 +02:00

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

Sebastian Parborg commented

2020-05-12 15:59:04 +02:00

Added subscriber: @ZedDB

Sebastian Parborg self-assigned this 2020-05-12 15:59:04 +02:00

Sebastian Parborg commented

2020-05-12 15:59:04 +02:00

I'm currently looking into this. It seems to be a bug in the GPU selection mode GPU_SELECT_PICK_ALL.
If I instead force GPU_SELECT_PICK_NEAREST it works (but will not cycle through the selections anymore of course).

I can also reproduce this in perspective mode with certain angles. So this is not limited to orthographic mode.

I'm currently looking into this. It seems to be a bug in the GPU selection mode `GPU_SELECT_PICK_ALL`. If I instead force `GPU_SELECT_PICK_NEAREST` it works (but will not cycle through the selections anymore of course). I can also reproduce this in perspective mode with certain angles. So this is not limited to orthographic mode.

Sebastian Parborg commented

2020-05-12 19:42:55 +02:00

I've proposed a potential fix here: https://developer.blender.org/D7710

Pasang Bomjan changed title from ~~OpenGl Depth Picking not selecting frontmost object in orthographic view~~ to OpenGl Depth Picking not selecting the front-most object

2020-05-12 19:47:24 +02:00

blender-admin commented

2020-05-14 13:43:09 +02:00

This issue was referenced by 82bda82ec4

This issue was referenced by 82bda82ec4494717f3796a8b458c81a98836838b

blender-admin commented

2020-05-14 13:43:09 +02:00

This issue was referenced by 36d9f7e375

This issue was referenced by 36d9f7e37540d211add476178972e1617c1533a2

Sebastian Parborg commented

2020-05-14 13:47:21 +02:00

Changed status from 'Confirmed' to: 'Resolved'

Sebastian Parborg closed this issue

2020-05-14 13:47:21 +02:00

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OpenGl Depth Picking not selecting the front-most object #76541