diff --git a/platform/isim/detect.py b/platform/isim/detect.py
index bd0fd2fea3b..0adbd9f4130 100644
--- a/platform/isim/detect.py
+++ b/platform/isim/detect.py
@@ -21,8 +21,8 @@ def get_opts():
 
 	return [
 		('ISIMPLATFORM', 'name of the iphone platform', 'iPhoneSimulator'),
-		('ISIMPATH', 'the path to iphone toolchain', '/Applications/Xcode.app/Contents/Developer/Platforms/${ISIMPLATFORM}.platform'),
-		('ISIMSDK', 'path to the iphone SDK', '$ISIMPATH/Developer/SDKs/${ISIMPLATFORM}.sdk'),
+		('ISIMPATH', 'the path to iphone toolchain', '/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain'),
+		('ISIMSDK', 'path to the iphone SDK', '/Applications/Xcode.app/Contents/Developer/Platforms/${ISIMPLATFORM}.platform/Developer/SDKs/${ISIMPLATFORM}.sdk'),
 		('game_center', 'Support for game center', 'yes'),
 		('store_kit', 'Support for in-app store', 'yes'),
 		('ios_gles22_override', 'Force GLES2.0 on iOS', 'yes'),
@@ -46,9 +46,10 @@ def configure(env):
 
 	env['ENV']['PATH'] = env['ISIMPATH']+"/Developer/usr/bin/:"+env['ENV']['PATH']
 
-	env['CC'] = '$ISIMPATH/Developer/usr/bin/gcc'
-	env['CXX'] = '$ISIMPATH/Developer/usr/bin/g++'
-	env['AR'] = 'ar'
+	env['CC'] = '$ISIMPATH/usr/bin/${ios_triple}clang'
+	env['CXX'] = '$ISIMPATH/usr/bin/${ios_triple}clang++'
+	env['AR'] = '$ISIMPATH/usr/bin/${ios_triple}ar'
+	env['RANLIB'] = '$ISIMPATH/usr/bin/${ios_triple}ranlib'
 
 	import string
 	env['CCFLAGS'] = string.split('-arch i386 -fobjc-abi-version=2 -fobjc-legacy-dispatch -fmessage-length=0 -fpascal-strings -fasm-blocks  -Wall -D__IPHONE_OS_VERSION_MIN_REQUIRED=40100 -isysroot $ISIMSDK -mios-simulator-version-min=4.3 -DCUSTOM_MATRIX_TRANSFORM_H=\\\"build/iphone/matrix4_iphone.h\\\" -DCUSTOM_VECTOR3_TRANSFORM_H=\\\"build/iphone/vector3_iphone.h\\\"')
@@ -97,4 +98,8 @@ def configure(env):
 	env['ENV']['CODESIGN_ALLOCATE'] = '/Developer/Platforms/iPhoneOS.platform/Developer/usr/bin/codesign_allocate'
 	env.Append(CPPFLAGS=['-DIPHONE_ENABLED', '-DUNIX_ENABLED', '-DGLES2_ENABLED', '-fexceptions'])
 
+	import methods
+	env.Append( BUILDERS = { 'GLSL120' : env.Builder(action = methods.build_legacygl_headers, suffix = 'glsl.h',src_suffix = '.glsl') } )
+	env.Append( BUILDERS = { 'GLSL' : env.Builder(action = methods.build_glsl_headers, suffix = 'glsl.h',src_suffix = '.glsl') } )
+	env.Append( BUILDERS = { 'GLSL120GLES' : env.Builder(action = methods.build_gles2_headers, suffix = 'glsl.h',src_suffix = '.glsl') } )
 
diff --git a/scene/resources/material.cpp b/scene/resources/material.cpp
index 55bb4e90730..b4ea60cb8d0 100644
--- a/scene/resources/material.cpp
+++ b/scene/resources/material.cpp
@@ -535,6 +535,8 @@ void ShaderMaterial::_shader_changed() {
 
 void ShaderMaterial::set_shader(const Ref<Shader>& p_shader) {
 
+	ERR_FAIL_COND(p_shader.is_valid() && p_shader->get_mode()!=Shader::MODE_MATERIAL);
+
 	if (shader.is_valid())
 		shader->disconnect(SceneStringNames::get_singleton()->changed,this,SceneStringNames::get_singleton()->_shader_changed);
 	shader=p_shader;
diff --git a/scene/resources/shader.cpp b/scene/resources/shader.cpp
index a9376faf62f..f0a2721016f 100644
--- a/scene/resources/shader.cpp
+++ b/scene/resources/shader.cpp
@@ -448,31 +448,19 @@ RES ResourceFormatLoaderShader::load(const String &p_path, const String& p_origi
 
 void ResourceFormatLoaderShader::get_recognized_extensions(List<String> *p_extensions) const {
 
-	p_extensions->push_back("shader");
+	ObjectTypeDB::get_extensions_for_type("Shader", p_extensions);
 }
+
 bool ResourceFormatLoaderShader::handles_type(const String& p_type) const {
 
-	return p_type=="Shader";
+	return ObjectTypeDB::is_type(p_type, "Shader");
 }
 
 
 String ResourceFormatLoaderShader::get_resource_type(const String &p_path) const {
 
-	if (p_path.extension().to_lower()=="shader")
+	if (p_path.extension().to_lower()=="shd")
 		return "Shader";
 	return "";
 }
 
-
-
-
-
-
-
-
-
-
-
-
-
-
diff --git a/tools/editor/property_editor.cpp b/tools/editor/property_editor.cpp
index 0a06d78255e..9fb623022bc 100644
--- a/tools/editor/property_editor.cpp
+++ b/tools/editor/property_editor.cpp
@@ -89,13 +89,23 @@ void CustomPropertyEditor::_menu_option(int p_which) {
 				case OBJ_MENU_LOAD: {
 
 					file->set_mode(EditorFileDialog::MODE_OPEN_FILE);
-					List<String> extensions;
 					String type=(hint==PROPERTY_HINT_RESOURCE_TYPE)?hint_text:String();
 
-					ResourceLoader::get_recognized_extensions_for_type(type,&extensions);
-					file->clear_filters();
+					List<String> extensions;
+					for (int i=0;i<type.get_slice_count(",");i++) {
+
+						ResourceLoader::get_recognized_extensions_for_type(type.get_slice(",",i),&extensions);
+					}
+
+					Set<String> valid_extensions;
 					for (List<String>::Element *E=extensions.front();E;E=E->next()) {
 
+						valid_extensions.insert(E->get());
+					}
+
+					file->clear_filters();
+					for (Set<String>::Element *E=valid_extensions.front();E;E=E->next()) {
+
 						file->add_filter("*."+E->get()+" ; "+E->get().to_upper() );
 
 					}