Use only the density channel's tunable eerie flames, Strange flames, Ghost Flame
Type of Emitters: VDB
Number of Unique Sparse Volume Texture:15
LODs: (No)
Number of Materials: 1 Material, 15 Instance
Number of Blueprints: (15)
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I ticked the Box for Issue Blocking Requests under Sparse Volume Texture Streaming to avoid small flickering, but this adds to the performance cost, please note.
If you don't have Flickering, you can uncheck it.
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Unimportant information: The wall material of the cover is the material found in Starter Content