diff --git a/libs/gfx/include/psemek/gfx/gl.hpp b/libs/gfx/include/psemek/gfx/gl.hpp
index 83f0e8ac..f91dc49b 100644
--- a/libs/gfx/include/psemek/gfx/gl.hpp
+++ b/libs/gfx/include/psemek/gfx/gl.hpp
@@ -178,9 +178,14 @@ namespace gl
 			int m_numMissing;
 		};
 		
+		extern LoadTest var_EXT_texture_filter_anisotropic;
+		
 	} //namespace exts
 	enum
 	{
+		MAX_TEXTURE_MAX_ANISOTROPY_EXT   = 0x84FF,
+		TEXTURE_MAX_ANISOTROPY_EXT       = 0x84FE,
+		
 		ALPHA                            = 0x1906,
 		ALWAYS                           = 0x0207,
 		AND                              = 0x1501,
@@ -482,6 +487,7 @@ namespace gl
 		BLEND_COLOR                      = 0x8005,
 		BLEND_DST_ALPHA                  = 0x80CA,
 		BLEND_DST_RGB                    = 0x80C8,
+		BLEND_EQUATION                   = 0x8009,
 		BLEND_SRC_ALPHA                  = 0x80CB,
 		BLEND_SRC_RGB                    = 0x80C9,
 		CONSTANT_ALPHA                   = 0x8003,
@@ -1013,6 +1019,7 @@ namespace gl
 	
 	namespace _detail
 	{
+		
 		extern void (CODEGEN_FUNCPTR *BlendFunc)(GLenum sfactor, GLenum dfactor);
 		extern void (CODEGEN_FUNCPTR *Clear)(GLbitfield mask);
 		extern void (CODEGEN_FUNCPTR *ClearColor)(GLfloat red, GLfloat green, GLfloat blue, GLfloat alpha);
diff --git a/libs/gfx/source/gl.cpp b/libs/gfx/source/gl.cpp
index 4c8d5a1f..47cbb9c5 100644
--- a/libs/gfx/source/gl.cpp
+++ b/libs/gfx/source/gl.cpp
@@ -90,6 +90,8 @@ namespace gl
 {
 	namespace exts
 	{
+		LoadTest var_EXT_texture_filter_anisotropic;
+		
 	} //namespace exts
 	
 	namespace _detail
@@ -1523,11 +1525,13 @@ namespace gl
 			
 			void InitializeMappingTable(std::vector<MapEntry> &table)
 			{
-				table.reserve(0);
+				table.reserve(1);
+				table.push_back(MapEntry("GL_EXT_texture_filter_anisotropic", &exts::var_EXT_texture_filter_anisotropic));
 			}
 			
 			void ClearExtensionVars()
 			{
+				exts::var_EXT_texture_filter_anisotropic = exts::LoadTest();
 			}
 			
 			void LoadExtByName(std::vector<MapEntry> &table, const char *extensionName)