From b17d15f5a053e699325692d43ed70eaec445c835 Mon Sep 17 00:00:00 2001
From: caryanne <adamstevenson121@gmail.com>
Date: Thu, 14 Nov 2013 16:51:06 -0500
Subject: [PATCH] added clearing of unknown parameters map

not doing so caused undefined behavior in objects with multiple
materials using custom parameters.
---
 tiny_obj_loader.cc | 1 +
 1 file changed, 1 insertion(+)

diff --git a/tiny_obj_loader.cc b/tiny_obj_loader.cc
index 7894e70..8b05782 100644
--- a/tiny_obj_loader.cc
+++ b/tiny_obj_loader.cc
@@ -270,6 +270,7 @@ void InitMaterial(material_t& material) {
     material.emission[i] = 0.f;
   }
   material.shininess = 1.f;
+  material.unknown_parameter.clear();
 }
 
 std::string LoadMtl (