Object Disappears if it has Shape Keys on Mesh Data with multiple users #38504
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Reference: blender/blender#38504
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System Information
MacBook Pro
15-inch, Early 2011
2 GHz Intel Core i7
8 GB 1333 MHz DDR3
AMD Radeon HD 6490M 256 MB
OS X 10.8.5 (12F45)
Blender Version
Broken: 2.69.0 r60991
Worked: unknown
Short description of error
Certain objects that draw just fine in wireframe, and solid shaded mode are disappearing in Cycles Rendered viewport shading mode.
These objects show up just fine if an actual image is rendered in Cycles.
It seems to only happen with a combination of 3 things that happen to be quite useful for a character that I'm rigging.
This combination will cause all duplicates except for the last created to disappear in Rendered shading mode.
Exact steps for others to reproduce the error
shape_key_shared_mesh_bug.blend
Open the attached .blend file and switch back and forth between solid shaded mode and rendered shading mode.
The bottom two planes should disappear.
Render the image and all 3 planes will appear.
Thank you for looking at this!
Daniel
Changed status to: 'Open'
Added subscriber: @DanielHoughton
Will look into it.
Added subscriber: @Sergey
Nothing to do with the blender side, purely failure of Cycles' hashing.
This issue was referenced by blender/blender-addons-contrib@8439a165ff
This issue was referenced by
8439a165ffChanged status from 'Open' to: 'Resolved'
Closed by commit
8439a165ff.Fixed now, thanks for the report.