From 9f920c5087940ca7053550f0645ed20d6e8ab114 Mon Sep 17 00:00:00 2001
From: yizhaosan <2316453754@qq.com>
Date: Mon, 10 Oct 2022 10:12:54 +0800
Subject: [PATCH] Sometimes colored STL display exception

---
 wrap/io_trimesh/import_stl.h | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/wrap/io_trimesh/import_stl.h b/wrap/io_trimesh/import_stl.h
index df7f47917..a4d4ff6d7 100644
--- a/wrap/io_trimesh/import_stl.h
+++ b/wrap/io_trimesh/import_stl.h
@@ -115,6 +115,9 @@ static bool IsSTLColored(const char * filename, bool &coloredFlag, bool &magicsM
    FILE *fp = fopen(filename, "rb");
    char buf[STL_LABEL_SIZE+1];
    fread(buf,sizeof(char),STL_LABEL_SIZE,fp);
+   for(int i=0;i<STL_LABEL_SIZE;++i)
+     if(buf[i]=='\0')
+        buf[i] = ' ';
    std::string strInput(buf);
    size_t cInd = strInput.rfind("COLOR=");
    size_t mInd = strInput.rfind("MATERIAL=");