GizmoAPI: Lines appear between triangles using "DEPTH_3D" option. #94791

New Issue

Demeter Dzadik · 2022-01-10T14:57:42+01:00

Demeter Dzadik commented

2022-01-10 14:57:42 +01:00

System Information
Operating system: Linux-5.8.0-7642-generic-x86_64-with-glibc2.32 64 Bits
Graphics card: GeForce RTX 2080/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 460.56

Blender Version
Broken: version: 3.1.0 Alpha, branch: master (modified), commit date: 2022-01-10 10:40, hash: 101fadcf6b

Short description of error
Whether using the built-in draw_preset_facemap() to draw face maps or the draw_custom_shape() function to draw based on a list of arbitrary vectors, as long as the GizmoGroup has the "DEPTH_3D" option to enable depth culling, see-through lines appear between the drawn triangles:

This doesn't seem to be affected by the widget's alpha color, and doesn't seem to be related to z-fighting, because it still happens when using a second mesh that has a Displace modifier and is hidden. But, it is purely cosmetic.

Exact steps for others to reproduce the error

Prototype addon: bone-gizmos.zip
Minimal test file: ellie_mesh_gizmos.rigging_minimal.blend
Mouse hover on the jacket sleeve

CC @ideasman42

**System Information** Operating system: Linux-5.8.0-7642-generic-x86_64-with-glibc2.32 64 Bits Graphics card: GeForce RTX 2080/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 460.56 **Blender Version** Broken: version: 3.1.0 Alpha, branch: master (modified), commit date: 2022-01-10 10:40, hash: `101fadcf6b` **Short description of error** Whether using the built-in `draw_preset_facemap()` to draw face maps or the `draw_custom_shape()` function to draw based on a list of arbitrary vectors, as long as the GizmoGroup has the "DEPTH_3D" option to enable depth culling, see-through lines appear between the drawn triangles: ![image.png](https://archive.blender.org/developer/F12799072/image.png) This doesn't seem to be affected by the widget's alpha color, and doesn't seem to be related to z-fighting, because it still happens when using a second mesh that has a Displace modifier and is hidden. But, it is purely cosmetic. **Exact steps for others to reproduce the error** - Prototype addon: [bone-gizmos.zip](https://archive.blender.org/developer/F12812489/bone-gizmos.zip) - Minimal test file: [ellie_mesh_gizmos.rigging_minimal.blend](https://archive.blender.org/developer/F12798941/ellie_mesh_gizmos.rigging_minimal.blend) - Mouse hover on the jacket sleeve CC @ideasman42

Demeter Dzadik commented

2022-01-10 14:57:42 +01:00

Added subscriber: @Mets

Demeter Dzadik commented

2022-01-10 14:57:59 +01:00

Added subscriber: @ideasman42

Demeter Dzadik changed title from ~~GizmoAPI: Mouse interacts with back-most widget instead of front-most one.~~ to GizmoAPI: Lines appear between triangles using "DEPTH_3D" option.

2022-01-10 15:35:26 +01:00

Philipp Oeser commented

2022-01-20 13:19:52 +01:00

Added subscriber: @lichtwerk

Philipp Oeser commented

2022-01-20 13:19:52 +01:00

Hm, two things:

Addon zip folder cannot be installed directly, need to put the subfolder in Addons
for me, it looks like this [which seems about right?]:

Are you affected by some other drawing glitch (not sure why your mesh is all black?)

Hm, two things: - Addon zip folder cannot be installed directly, need to put the subfolder in Addons - for me, it looks like this [which seems about right?]: ![image.png](https://archive.blender.org/developer/F12812615/image.png) Are you affected by some other drawing glitch (not sure why your mesh is all black?)

Philipp Oeser commented

2022-01-20 13:26:33 +01:00

Changed status from 'Needs Triage' to: 'Needs User Info'

Philipp Oeser commented

2022-01-20 13:26:33 +01:00

Could you check this again in a fresh build from https://builder.blender.org/download/daily/?
(just wanting to make sure we are on the same page)

I am on

**System Information**
Operating system: Linux-5.13.0-0.rc6.45.fc35.x86_64-x86_64-with-glibc2.34.9000 64 Bits
Graphics card: NVIDIA GeForce GTX 970M/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 495.44
version: 3.1.0 Alpha, branch: master, commit date: 2022-01-20 00:59, hash: `rBeb3ff1d6f9ca`

Could you check this again in a fresh build from https://builder.blender.org/download/daily/? (just wanting to make sure we are on the same page) I am on ``` **System Information** Operating system: Linux-5.13.0-0.rc6.45.fc35.x86_64-x86_64-with-glibc2.34.9000 64 Bits Graphics card: NVIDIA GeForce GTX 970M/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 495.44 version: 3.1.0 Alpha, branch: master, commit date: 2022-01-20 00:59, hash: `rBeb3ff1d6f9ca` ```

Philipp Oeser commented

2022-01-20 13:32:04 +01:00

Changed status from 'Needs User Info' to: 'Confirmed'

Philipp Oeser commented

2022-01-20 13:32:04 +01:00

Nevermind, looking closer I can reproduce actually, sorry

Philipp Oeser commented

2022-05-24 09:33:58 +02:00

Has this worked in previous versions btw.?

Campbell Barton commented

2022-05-24 09:58:24 +02:00

Yes, this used to work in 2.8x: http://members.iinet.net.au/~ideasman42/random/facemap_28.ogv

The current the method of drawing causes some overlap that makes the edges increase in alpha, setting this as a known issue, while not ideal it's not preventing the feature from being usable.

Yes, this used to work in 2.8x: http://members.iinet.net.au/~ideasman42/random/facemap_28.ogv The current the method of drawing causes some overlap that makes the edges increase in alpha, setting this as a known issue, while not ideal it's not preventing the feature from being usable.

Philipp Oeser removed the

Download

What's New

Blender Studio

Manual

Developers Blog

Documentation

Benchmark

Blender Conference

Development Fund

One-time Donations

GizmoAPI: Lines appear between triangles using "DEPTH_3D" option. #94791