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-rw-r--r--doc/lua_api.txt6
1 files changed, 5 insertions, 1 deletions
diff --git a/doc/lua_api.txt b/doc/lua_api.txt
index 899c0abdb..9ac37e881 100644
--- a/doc/lua_api.txt
+++ b/doc/lua_api.txt
@@ -6040,7 +6040,11 @@ Used by `minetest.register_node`.
place_param2 = nil, -- Force value for param2 when player places node
is_ground_content = true,
- -- If false, the cave generator will not carve through this node
+ -- If false, the cave generator and dungeon generator will not carve
+ -- through this node.
+ -- Specifically, this stops mod-added nodes being removed by caves and
+ -- dungeons when those generate in a neighbor mapchunk and extend out
+ -- beyond the edge of that mapchunk.
sunlight_propagates = false,
-- If true, sunlight will go infinitely through this node