Crash after removing lamp, linked to "Lamp Data" shader node in Material Mode. #42525

New Issue

Alexander Romanov · 2014-11-06T16:02:31+01:00

Alexander Romanov commented

2014-11-06 16:02:31 +01:00

Exact steps for others to reproduce the error

Create Lamp Data Node for any node material
Select any scene lamp in Lamp Data Node
Switch to Material mode
Remove that lamp from the scene

After research I found that it happens because field "users" of linked lamp not incremented when lamp is being selected in Lamp Node.
Nevertheless after opening saved file "users" restores correct number of links and lamp origin becomes blue. IMO increasing and decreasing of "us" field should be in combobox event handler of "Lamp Data" shader node,
but I've not found any good infrastacture for this yet.

**Exact steps for others to reproduce the error** 1) Create Lamp Data Node for any node material 2) Select any scene lamp in Lamp Data Node 3) Switch to Material mode 4) Remove that lamp from the scene After research I found that it happens because field "users" of linked lamp not incremented when lamp is being selected in Lamp Node. Nevertheless after opening saved file "users" restores correct number of links and lamp origin becomes blue. IMO increasing and decreasing of "us" field should be in combobox event handler of "Lamp Data" shader node, but I've not found any good infrastacture for this yet.

Alexander Romanov commented

2014-11-06 16:02:31 +01:00

Changed status to: 'Open'

Alexander Romanov commented

2014-11-06 16:02:31 +01:00

Added subscriber: @AlexanderRomanov

blender-admin commented

2014-11-06 16:38:44 +01:00

This issue was referenced by 0c28aaae7e

This issue was referenced by 0c28aaae7e65538f8e6c30a35861dc6c49a84637

Antonis Ryakiotakis commented

2014-11-06 16:39:05 +01:00

Changed status from 'Open' to: 'Resolved'

Antonis Ryakiotakis closed this issue

2014-11-06 16:39:05 +01:00

Antonis Ryakiotakis commented

2014-11-06 16:39:05 +01:00

Closed by commit 0c28aaae7e.

Closed by commit 0c28aaae7e.

blender-admin commented

2014-11-06 18:07:18 +01:00

This issue was referenced by 4542504162

This issue was referenced by 4542504162a2962188e708e8b7dab609bddc0865

Alexander Romanov commented

2014-11-07 09:48:53 +01:00

Added subscriber: @Psy-Fi

Alexander Romanov commented

2014-11-07 09:48:53 +01:00

After this fix the bug has gone, but there is one more problem left.

While adding or deleting lamp in Lamp Data node the number of its users does not change. Thus it will disappear from datablocks after deleting.
If we press Ctl+Z or save and reopen file the number of users becomes correct. And it will stay in datablocks after deleting.

After this fix the bug has gone, but there is one more problem left. 1) While adding or deleting lamp in Lamp Data node the number of its users does not change. Thus it will disappear from datablocks after deleting. 2) If we press Ctl+Z or save and reopen file the number of users becomes correct. And it will stay in datablocks after deleting.

Antonis Ryakiotakis commented

2014-11-07 10:56:45 +01:00

This is known and a separate issue check #42523

Looks like it was done on purpose to avoid a crash on exit but we might want to check that one again.

This is known and a separate issue check #42523 Looks like it was done on purpose to avoid a crash on exit but we might want to check that one again.

Alexander Romanov commented

2014-12-23 10:09:50 +01:00

Tag for searching purposes: Blend4Web

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Crash after removing lamp, linked to "Lamp Data" shader node in Material Mode. #42525