Scrubbing a scene of all compositor setups & World shaders

Support Compositing and Post Processing
1

Hey there,

I have a blend file and want to get rid of all stored compositor setups - whenever I delete one, it still lingers in the dropdown. Same goes for compositor setups - how can I get rid of all of them for good?

2

Perhaps doing it in the python console is the way to go..

compositor_nodegroups = [n for n in bpy.data.node_groups if n.type=="COMPOSITING"]

for cng in compositor_nodegroups:
    bpy.data.node_groups.remove(cng)
3

YES! They’re gone! And the world shaders? Is there some Python to chase those away as well? :melting_face:

4

I just use the outliner set to Blend File, and select or multi-select with Shift or Ctrl Shift to mark items. Right-click and select Delete…

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5

@RSEhlers suggestion is simpler than using python.

But just for completion, the python script is almost identical for cleaning the Worlds:

world_nodegroups = [n for n in bpy.data.worlds]

for w in world_nodegroups:
    bpy.data.worlds.remove(w)
6

Is there a reason to do [n for n in bpy.data.worlds] instead of something like list(bpy.data.worlds) or bpy.data.worlds[:]?

Edit: Oh, probably to add conditions if needed… :man_facepalming: makes sense.

7

It’s just a matter of preference.

There are plenty of ways to turn the collection into a list, some more readable than others, some with more options; But in the end they all work. :slight_smile:

8

Alright, done. Thanks a lot, guys! I didn’t think to use the outline set to Blend file @RSEhlers - the more idiot proof way, perfectly suitable for me :joy: