Normal overlays / face orientation and Recompute Outside / Inside to reset normals do not work #68558

New Issue

Hidalgo Lakhdi · 2019-08-11T23:20:35+02:00

Hidalgo Lakhdi commented

2019-08-11 23:20:35 +02:00

System Information
Operating system: Windows-10-10.0.17763 64 Bits
Graphics card: Intel(R) HD Graphics 620 Intel 4.5.0 - Build 25.20.100.6444

Blender Version
Broken: version: 2.81 (sub 1), branch: master, commit date: 2019-08-10 16:47, hash: 22cdadaa32
Worked: (optional)

Short description of error
The normal display and face orientation overlays do not represent the actual normals of the mesh, but only the precomputed normals.

Furthermore, the Recalculate Outside and Recalculate Inside normal functions in the Alt-N normal editing menu do not work.

It's worth mentioning this bug is in 2.8 stable that's currently on the website as well.

How to reproduce in the default startup file

Enable the normal visualization overlay and/or the face orientation overlay
Select the default cube and go into edit mode
Edit normals using the Alt-N menu
Observe how the normal overlay does not update to the updated normals
Use the Recalculate Outside / Inside function
Observe how the normals do not reset after using the function

**System Information** Operating system: Windows-10-10.0.17763 64 Bits Graphics card: Intel(R) HD Graphics 620 Intel 4.5.0 - Build 25.20.100.6444 **Blender Version** Broken: version: 2.81 (sub 1), branch: master, commit date: 2019-08-10 16:47, hash: `22cdadaa32` Worked: (optional) **Short description of error** The normal display and face orientation overlays do not represent the actual normals of the mesh, but only the precomputed normals. Furthermore, the Recalculate Outside and Recalculate Inside normal functions in the Alt-N normal editing menu do not work. It's worth mentioning this bug is in 2.8 stable that's currently on the website as well. How to reproduce in the default startup file * Enable the normal visualization overlay and/or the face orientation overlay * Select the default cube and go into edit mode * Edit normals using the Alt-N menu * Observe how the normal overlay does not update to the updated normals * Use the Recalculate Outside / Inside function * Observe how the normals do not reset after using the function

Hidalgo Lakhdi commented

2019-08-11 23:20:36 +02:00

Added subscriber: @frarf

Philipp Oeser commented

2019-08-12 10:51:34 +02:00

Added subscriber: @lichtwerk

Philipp Oeser commented

2019-08-12 10:51:34 +02:00

Not sure if I understand correctly:

what exactly is not updating? ("The normal display", "the normal overlay")

in the following file I can see CustomSplitNormals update on all tools [also Flip, Recalculate Inside, Recalculate Outside]:
#68558.blend

@frarf : does this fail for you in above file as well?
@frarf: not sure why Recalculate Inside, Recalculate Outside would actually need to reset CustomSplitNormals? (isnt it just there to flip? [thats what they do here...])

regarding the face orientation overlay: this seems to be using gl_FrontFacing, and yes, that doesnt seem to do it for only reversing CustomSplitNormals... this I would need to look at further, but lets first get the misunderstanding about the mssing update out of the way... could you shed some light on this?

Not sure if I understand correctly: - what exactly is not updating? ("The normal display", "the normal overlay") in the following file I can see CustomSplitNormals update on all tools [also `Flip`, `Recalculate Inside`, `Recalculate Outside`]: [#68558.blend](https://archive.blender.org/developer/F7660085/T68558.blend) @frarf : does this fail for you in above file as well? @frarf: not sure why `Recalculate Inside`, `Recalculate Outside` would actually need to **reset** CustomSplitNormals? (isnt it just there to flip? [thats what they do here...]) regarding the face orientation overlay: this seems to be using `gl_FrontFacing`, and yes, that doesnt seem to do it for only reversing CustomSplitNormals... this I would need to look at further, but lets first get the misunderstanding about the mssing update out of the way... could you shed some light on this?

Hidalgo Lakhdi commented

2019-08-13 20:59:42 +02:00

Seems to have been an idiotic mistake from my part - I was using the tools incorrectly. For anyone who's reading, Reset Vectors is what you use to clear custom normals, not Recalculate Outside. It's a little obtuse, and it could warrant a rename (like Reset Custom Normals) but it's mostly a mistake from my part. I'll remove this bug report.

Now I have a separate issue though. When I click anywhere on the viewport in the .blend that you sent me, Blender crashes. Bizarre. I'll let you decide if that's worth a different post, though.

Seems to have been an idiotic mistake from my part - I was using the tools incorrectly. For anyone who's reading, `Reset Vectors` is what you use to clear custom normals, not `Recalculate Outside`. It's a little obtuse, and it could warrant a rename (like `Reset Custom Normals`) but it's mostly a mistake from my part. I'll remove this bug report. Now I have a separate issue though. When I click anywhere on the viewport in the .blend that you sent me, Blender crashes. Bizarre. I'll let you decide if that's worth a different post, though.

Hidalgo Lakhdi commented

2019-08-14 10:40:21 +02:00

Removed subscriber: @frarf

Hidalgo Lakhdi commented

2019-08-14 10:40:58 +02:00

Changed status from 'Open' to: 'Archived'

Hidalgo Lakhdi closed this issue

2019-08-14 10:40:58 +02:00

Sign in to join this conversation.

No Label

Download

What's New

Blender Studio

Manual

Developers Blog

Documentation

Benchmark

Blender Conference

Development Fund

One-time Donations

Normal overlays / face orientation and Recompute Outside / Inside to reset normals do not work #68558