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-rw-r--r--src/mapgen/cavegen.cpp11
1 files changed, 10 insertions, 1 deletions
diff --git a/src/mapgen/cavegen.cpp b/src/mapgen/cavegen.cpp
index 363219f6d..e54d76e08 100644
--- a/src/mapgen/cavegen.cpp
+++ b/src/mapgen/cavegen.cpp
@@ -507,7 +507,16 @@ void CavesRandomWalk::carveRoute(v3f vec, float f, bool randomize_xz)
MapNode liquidnode = CONTENT_IGNORE;
if (bmgn) {
- Biome *biome = (Biome *)bmgn->getBiomeAtPoint(cpabs);
+ Biome *biome = nullptr;
+ if (cpabs.X < node_min.X || cpabs.X > node_max.X ||
+ cpabs.Z < node_min.Z || cpabs.Z > node_max.Z)
+ // Point is outside heat and humidity noise maps so use point noise
+ // calculations.
+ biome = (Biome *)bmgn->calcBiomeAtPoint(cpabs);
+ else
+ // Point is inside heat and humidity noise maps so use them
+ biome = (Biome *)bmgn->getBiomeAtPoint(cpabs);
+
if (biome->c_cave_liquid != CONTENT_IGNORE)
liquidnode = biome->c_cave_liquid;
}