From d239f65130e458faff54a0380efec2a158e948ed Mon Sep 17 00:00:00 2001
From: Adam Johnson <AdamJohnso@gmail.com>
Date: Sun, 3 Apr 2022 20:14:53 -0400
Subject: [PATCH] Fix #316.

---
 korman/exporter/mesh.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/korman/exporter/mesh.py b/korman/exporter/mesh.py
index a8406255..ee215220 100644
--- a/korman/exporter/mesh.py
+++ b/korman/exporter/mesh.py
@@ -661,7 +661,7 @@ def _export_material_spans(self, bo, mesh, materials):
             geospan.props |= (plGeometrySpan.kWaterHeight | plGeometrySpan.kLiteVtxNonPreshaded |
                               plGeometrySpan.kPropReverseSort | plGeometrySpan.kPropNoShadow)
             geospan.waterHeight = bo.matrix_world.translation[2]
-            return [_GeoSpan(bo, blmat, geospan)], None
+            return [_GeoSpan(bo, blmat, geospan, blmat.pass_index)], None
         else:
             geospans = [None] * len(materials)
             mat2span_LUT = {}