Grease pencil edit mode visual bug #84058

New Issue

Arnold Lynx · 2020-12-22T18:30:10+01:00

Arnold Lynx commented

2020-12-22 18:30:10 +01:00

System Information
Operating system: Darwin-19.5.0-x86_64-i386-64bit 64 Bits
Graphics card: AMD Radeon Pro 5500M OpenGL Engine ATI Technologies Inc. 4.1 ATI-3.9.15

Blender Version
Broken: version: 2.92.0 Alpha, branch: master, commit date: 2020-12-21 21:31, hash: ffacce5be4
Worked: 2.90

Short description of error
When strokes visually overlap with 3D models in GP edit mode I get this strange effect:

The colors of the parts of the strokes that overlap with the model change with the background color. The doubled stroke seems to project onto the model somehow and moves around depending on camera angle and zoom level. It's fixed when I turn off all overlays, but none of the individual overlay settings affect it. The effect also disappears if I turn on X-ray in the viewport settings and set it to anything less than 1.0.

Screenshot with different viewport color and zoom level:

Something similar happens when editing the model as well:

**System Information** Operating system: Darwin-19.5.0-x86_64-i386-64bit 64 Bits Graphics card: AMD Radeon Pro 5500M OpenGL Engine ATI Technologies Inc. 4.1 ATI-3.9.15 **Blender Version** Broken: version: 2.92.0 Alpha, branch: master, commit date: 2020-12-21 21:31, hash: `ffacce5be4` Worked: 2.90 **Short description of error** When strokes visually overlap with 3D models in GP edit mode I get this strange effect: ![gp edit mode.png](https://archive.blender.org/developer/F9525558/gp_edit_mode.png) The colors of the parts of the strokes that overlap with the model change with the background color. The doubled stroke seems to project onto the model somehow and moves around depending on camera angle and zoom level. It's fixed when I turn off all overlays, but none of the individual overlay settings affect it. The effect also disappears if I turn on X-ray in the viewport settings and set it to anything less than 1.0. Screenshot with different viewport color and zoom level: ![gp edit mode green.png](https://archive.blender.org/developer/F9525597/gp_edit_mode_green.png) Something similar happens when editing the model as well: ![model edit mode.png](https://archive.blender.org/developer/F9525573/model_edit_mode.png)

Arnold Lynx commented

2020-12-22 18:30:10 +01:00

Added subscriber: @ArnoldLynx

Falk David commented

2021-01-12 09:14:35 +01:00

Added subscribers: @fclem, @filedescriptor

Falk David commented

2021-01-12 09:14:35 +01:00

This seems like it's working as expected. It's just how the grease pencil drawing engine currently works. @fclem Does this look unexpected to you?

Philipp Oeser commented

2021-02-09 13:08:28 +01:00

Added subscriber: @lichtwerk

Philipp Oeser commented

2021-02-09 13:08:28 +01:00

This is due to Fade Inactive Geometry being ON

It has been reported again in #85207 (Grease pencil strokes are incorrectly blended with geometry in draw mode (depending on 'Fade Inactive Geometry' setting)), will merge these reports (lets continue discussion there -- includes workaround)

This is due to `Fade Inactive Geometry` being ON It has been reported again in #85207 (Grease pencil strokes are incorrectly blended with geometry in draw mode (depending on 'Fade Inactive Geometry' setting)), will merge these reports (lets continue discussion there -- includes workaround)

Philipp Oeser commented

2021-02-09 13:08:37 +01:00

Closed as duplicate of #85207

Philipp Oeser closed this issue

2021-02-09 13:08:37 +01:00

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Grease pencil edit mode visual bug #84058