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Maniphest T46026

Brush Select ( " C " ) bug - additionaly selects random vertices on any given mesh
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Description

System Information
Windows 8.1 & GeForce GTX 980

Blender Version
Broken: 2.75a c27589e

Short description of error

Selecting with Brush Select ( "C" ) on any mesh results in additional vertices (random) being selected beside the intentionally chosen ones.
It has been happening for me for a long time, not just on this PC.
It has begun some time ago.

Exact steps for others to reproduce the error

For me it will happen on any mesh in any .blend file as long as I try to make a Brush selection.

random1.blend2 MBDownload

random2.blend3 MBDownload

Related Objects

Event Timeline

Alexander (BIGLAM3) created this task.Sep 5 2015, 9:02 PM
Alexander (BIGLAM3) raised the priority of this task from to 90.
Alexander (BIGLAM3) updated the task description. (Show Details)
Alexander (BIGLAM3) added projects: BF Blender, Modeling.
Alexander (BIGLAM3) edited a custom field.
Alexander (BIGLAM3) added a subscriber: Alexander (BIGLAM3).
Julian Eisel (Severin) lowered the priority of this task from 90 to 30.Sep 5 2015, 9:19 PM
Julian Eisel (Severin) added a subscriber: Julian Eisel (Severin).

Can't recreate this. However, this is an old & known issue with multisampling. Please make sure multisampling is disabled in the User Preferences, System context (also check if there's an option for this in your graphics driver settings).

Campbell Barton (campbellbarton) changed the task status from Unknown Status to Unknown Status.Sep 7 2015, 4:04 AM
Campbell Barton (campbellbarton) claimed this task.
Campbell Barton (campbellbarton) added a subscriber: Campbell Barton (campbellbarton).

See: https://www.blender.org/manual/troubleshooting/3d_view.html#invalid-selection

Campbell Barton (campbellbarton) changed the task status from Unknown Status to Archived.Sep 7 2015, 4:05 AM