From cd3df94a4bbb362d3ac50fb62f5f7439109ce89f Mon Sep 17 00:00:00 2001
From: Cristian Ritter <cristian_ritter@hotmail.com>
Date: Mon, 19 Aug 2024 18:44:43 -0300
Subject: [PATCH] add surface and use_surface_color on style class

---
 src/ifcgeom/taxonomy.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/ifcgeom/taxonomy.h b/src/ifcgeom/taxonomy.h
index 9b02e7a2fc..91239c8bc2 100644
--- a/src/ifcgeom/taxonomy.h
+++ b/src/ifcgeom/taxonomy.h
@@ -316,7 +316,7 @@ typedef item const* ptr;
 				virtual kinds kind() const { return STYLE; }
 
 				virtual size_t calc_hash() const {
-					auto v = std::make_tuple(static_cast<size_t>(STYLE), name, diffuse.hash(), specular.hash(), specularity, transparency);
+					auto v = std::make_tuple(static_cast<size_t>(STYLE), name, diffuse.hash(), surface.hash(), specular.hash(), specularity, transparency, use_surface_color);
 					return boost::hash<decltype(v)>{}(v);
 				}