Grease pencil & unusual fill artifact #62221

Closed
opened 2019-03-05 17:20:49 +01:00 by Fred · 8 comments

System Information
Operating system: Windows 7

Blender Version
Broken: 2.80 e795dd4a20

Short description of error
Undesired outline on fill colours, like so:
aa.JPG
And only the colours used as fills. All other shots where the fill is not in contact with alpha work fine:
ab.JPG
The colour is a stroke with fill of the same colour. it is bordered by alpha and the picture behind this is a texture on a plane The outline is independent of resolution or distance, always about one pixel width. Deleting adjacent grease pencil frames makes it disappear (but also destroys my animation)

Exact steps for others to reproduce the error
Not sure. The same colour and setup in a new file does not produce this result.
ac.JPG
The relevant file is a bit bigger than optimal but I cant seem to reproduce this otherwise.teaser.blend

**System Information** Operating system: Windows 7 **Blender Version** Broken: 2.80 e795dd4a20a1 **Short description of error** Undesired outline on fill colours, like so: ![aa.JPG](https://archive.blender.org/developer/F6766759/aa.JPG) And only the colours used as fills. All other shots where the fill is not in contact with alpha work fine: ![ab.JPG](https://archive.blender.org/developer/F6766758/ab.JPG) The colour is a stroke with fill of the same colour. it is bordered by alpha and the picture behind this is a texture on a plane The outline is independent of resolution or distance, always about one pixel width. Deleting adjacent grease pencil frames makes it disappear (but also destroys my animation) **Exact steps for others to reproduce the error** Not sure. The same colour and setup in a new file does not produce this result. ![ac.JPG](https://archive.blender.org/developer/F6766801/ac.JPG) The relevant file is a bit bigger than optimal but I cant seem to reproduce this otherwise.[teaser.blend](https://archive.blender.org/developer/F6766813/teaser.blend)
Author

Added subscriber: @Fred_B

Added subscriber: @Fred_B

Added subscriber: @antoniov

Added subscriber: @antoniov

This a know problem with antialiasing. We are working on it.

Could you try to disable multisampling for grease pencil in User Prefs screen to verify if this is the reason of the bug?

This a know problem with antialiasing. We are working on it. Could you try to disable multisampling for grease pencil in User Prefs screen to verify if this is the reason of the bug?

Added subscriber: @capnm

Added subscriber: @capnm

The issue occurs by oversampling, but only if the GP material contains some another visible layer with opacity < 1. My workaround is to put transparent layers to separate GP objects.

The issue occurs by oversampling, but only if the GP material contains some another visible layer with opacity < 1. My workaround is to put transparent layers to separate GP objects.
Member

Added subscriber: @lichtwerk

Added subscriber: @lichtwerk
Member

Changed status from 'Open' to: 'Archived'

Changed status from 'Open' to: 'Archived'
Philipp Oeser self-assigned this 2019-03-19 09:33:10 +01:00
Member

More than a week without reply or activity. Due to the policy of the tracker archiving for until required info/data are provided.

More than a week without reply or activity. Due to the policy of the tracker archiving for until required info/data are provided.
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Reference: blender/blender#62221
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