improve the max shader name length in brushexport plugin

diff --git a/contrib/brushexport/export.cpp b/contrib/brushexport/export.cpp
index a83f7ebcbaf521efb22162c0bb9148f6192a5a42..c406f198c9304173655f2bb01b22d953678e1f8e 100644 (file)
--- a/contrib/brushexport/export.cpp
+++ b/contrib/brushexport/export.cpp
@@ -11,6 +11,9 @@
 // this is very evil, but right now there is no better way
 #include "../../radiant/brush.h"
 
+#define MAX_MATERIAL_NAME (64+9-1)
+// MAX_QPATH plus "textures/" prefix, allow trailing NUL to fit
+
 /*
        Abstract baseclass for modelexporters
        the class collects all the data which then gets
@@ -279,9 +282,9 @@ bool ExportDataAsWavefront::WriteToFile(const std::string& path, collapsemode mo
 
                                if(mat != lastMat)
                                {
-                                       if(limNames && mat.size() > 20)
+                                       if(limNames && mat.size() > MAX_MATERIAL_NAME)
                                        {
-                                               out << "\nusemtl " << mat.substr(mat.size() - 20, mat.size()).c_str();
+                                               out << "\nusemtl " << mat.substr(mat.size() - MAX_MATERIAL_NAME, mat.size()).c_str();
                                        } else {
                                                out << "\nusemtl " << mat.c_str();
                                        }
@@ -308,9 +311,9 @@ bool ExportDataAsWavefront::WriteToFile(const std::string& path, collapsemode mo
                outMtl << "# Material Count: " << (const Unsigned)materials.size() << "\n\n";
                for(std::set<std::string>::const_iterator it(materials.begin()); it != materials.end(); ++it)
                {
-                       if(limNames && it->size() > 20)
+                       if(limNames && it->size() > MAX_MATERIAL_NAME)
                        {
-                               outMtl << "newmtl " << it->substr(it->size() - 20, it->size()).c_str() << "\n";
+                               outMtl << "newmtl " << it->substr(it->size() - MAX_MATERIAL_NAME, it->size()).c_str() << "\n";
                        } else {
                                outMtl << "newmtl " << it->c_str() << "\n";
                        }