Can you share a CanvasLayer between scenes ?

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:bust_in_silhouette: Asked By atom

I have a shader that draws animated drop shadow for my mobs.
Shadow shapes are “cut out”, but plain black, no transparency.
Mobs are then instanced in a main scene.
I would like to have all drop shadows on the same CanvasLayer in main scene so I can modulate a global transparency that will make shadow blend together at same opacity.
I thought scenes will share a CanvasLayer set at same index :

  • shadow is draw in a CanvasLayer -1 in mob scene.
  • Main scene has a CanvasLayer -1 with a CanvaModulate child node to set the desired “global” transparency.
    Well, it doesn’t work.
    Am I missing something or CanvasLayer are just scene specific and can’t mix childs with another scene on instancing ?