Specials Menu (W) crashes with lamps if the Emission node is missing/ renamed in Cycles #53171
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Reference: blender/blender#53171
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System Information
Win 7 64 bit, AMD X3 455, R7 360
Blender Version
Broken: current master
171c4e9
, 2.79 and all the versions after the commit6322f01783
Short description of error
The key value is hardcoded expecting a Emission called name for a node in the material tree. The problem arises if:
Exact steps for others to reproduce the error
Default scene > switch to Cycles> Select a Lamp > Open the Node Editor > Enable nodes > Delete or rename the Emission node > In 3D View press W to bring the Specials menu.
Changed status to: 'Open'
Added subscriber: @VukGardasevic
Added subscriber: @zeauro
I confirm the issue with master and 2.79.
Specials Menu contains an item to modify strength of the lamp by dragging mouse in 3Dview.
But this strength is set by Emission node when nodes are enabled.
Of course, it does not work anymore if nodetree is modified and does not contain a node called "Emission".
Strength item in Specials menu for lamp is present only if nodes are enabled.
This issue was referenced by
debd9f6ea1
Changed status from 'Open' to: 'Resolved'