diff --git a/src/base/io_format.cpp b/src/base/io_format.cpp
index b7505b3d..fdbee9c8 100644
--- a/src/base/io_format.cpp
+++ b/src/base/io_format.cpp
@@ -32,6 +32,7 @@ std::string_view formatIdentifier(Format format)
     case Format_COLLADA: return "COLLADA";
     case Format_FBX:   return "FBX";
     case Format_X3D:   return "X3D";
+    case Format_DirectX: return "X";
     case Format_Blender: return "Blender";
     }
 
@@ -59,6 +60,7 @@ std::string_view formatName(Format format)
     case Format_COLLADA: return "COLLAborative Design Activity(ISO/PAS 17506)";
     case Format_FBX:   return "Filmbox";
     case Format_X3D:   return "Extensible 3D Graphics(ISO/IEC 19775/19776/19777)";
+    case Format_DirectX: return "DirectX File Format";
     case Format_Blender: return "Blender File Format";
     }
 
@@ -84,6 +86,7 @@ Span<std::string_view> formatFileSuffixes(Format format)
     static std::string_view suffix_stl[]  = { "stl" };
     static std::string_view suffix_vrml[] = { "wrl", "wrz", "vrml" };
     static std::string_view suffix_x3d[]  = { "x3d", "x3dv", "x3db", "x3dz", "x3dbz", "x3dvz" };
+    static std::string_view suffix_directx[]  = { "x" };
     static std::string_view suffix_blender[]  = { "blend", "blender", "blend1", "blend2" };
 
     switch (format) {
@@ -105,6 +108,7 @@ Span<std::string_view> formatFileSuffixes(Format format)
     case Format_STL:   return suffix_stl;
     case Format_VRML:  return suffix_vrml;
     case Format_X3D:   return suffix_x3d;
+    case Format_DirectX: return suffix_directx;
     case Format_Blender: return suffix_blender;
     }
 
diff --git a/src/base/io_format.h b/src/base/io_format.h
index 081e746e..d1fed8c4 100644
--- a/src/base/io_format.h
+++ b/src/base/io_format.h
@@ -32,6 +32,7 @@ enum Format {
     Format_STL,
     Format_VRML,
     Format_X3D,
+    Format_DirectX,
     Format_Blender
 };
 
diff --git a/src/io_assimp/io_assimp.cpp b/src/io_assimp/io_assimp.cpp
index 8c03831c..0cf81af8 100644
--- a/src/io_assimp/io_assimp.cpp
+++ b/src/io_assimp/io_assimp.cpp
@@ -15,7 +15,14 @@ namespace IO {
 Span<const Format> AssimpFactoryReader::formats() const
 {
     static const Format array[] = {
-        Format_AMF, Format_3DS, Format_3MF, Format_COLLADA, Format_FBX, Format_X3D, Format_Blender
+        Format_AMF,
+        Format_3DS,
+        Format_3MF,
+        Format_COLLADA,
+        Format_FBX,
+        Format_X3D,
+        Format_Blender,
+        Format_DirectX
     };
     return array;
 }
diff --git a/src/io_assimp/io_assimp_reader.cpp b/src/io_assimp/io_assimp_reader.cpp
index 01400547..92a9ae82 100644
--- a/src/io_assimp/io_assimp_reader.cpp
+++ b/src/io_assimp/io_assimp_reader.cpp
@@ -524,8 +524,10 @@ Handle(XCAFDoc_VisMaterial) AssimpReader::createOccVisMaterial(
             this->messenger()->trace() << "AI_MATKEY_SPECULAR_FACTOR: " << factor;
 #endif
 
+#if 0 // Emmissive color disabled as it's making models in Mayo to be rendered nearly with white color
         if (fnGetColor4D(AI_MATKEY_COLOR_EMISSIVE, &color, &matCommon.IsDefined))
             matCommon.EmissiveColor = toOccColor(color);
+#endif
     }
 
     {