Added triangle drawing for debug purposes.

--HG--
branch : gsoc2013-dfighter

code/nel/tools/3d/object_viewer_qt/src/plugins/material_editor/material_editor_window.cpp

@@ -260,6 +260,13 @@ namespace MaterialEditor
 		viewPort->stopTimedUpdates();
 	}
 
+	void MaterialEditorWindow::onTriangleClicked()
+	{
+		nl3dIface->clearScene();
+		materialSplitter->onSceneCleared();
+		nl3dIface->drawTriangle();
+	}
+	
 	void MaterialEditorWindow::createMenus()
 	{
 		Core::MenuManager *mm = Core::ICore::instance()->menuManager();
@@ -305,6 +312,13 @@ namespace MaterialEditor
 				a = new QAction( tr( "Clear scene" ), NULL );
 				connect( a, SIGNAL( triggered( bool ) ), this, SLOT( onClearSceneClicked() ) );
 				mm->addAction( a );
+
+				QMenu *mmmm = mm->addMenu( tr( "Debug" ) );
+				{
+					a = new QAction( tr( "Triangle" ), NULL );
+					connect( a, SIGNAL( triggered( bool ) ), this, SLOT( onTriangleClicked() ) );
+					mmmm->addAction( a );
+				}
 			}
 
 			a = new QAction( tr( "Shaders" ), NULL );

code/nel/tools/3d/object_viewer_qt/src/plugins/material_editor/material_editor_window.h

@@ -51,6 +51,7 @@ private Q_SLOTS:
 		void onAddTeaPotClicked();
 
 		void onClearSceneClicked();
+		void onTriangleClicked();
 		
 private:
 		void createMenus();

code/nel/tools/3d/object_viewer_qt/src/plugins/material_editor/nel3d_interface.cpp

@@ -445,6 +445,53 @@ namespace MaterialEditor
 		return loadShape( "primitives/teapot.shape" );
 	}
 
+	void CNel3DInterface::drawTriangle()
+	{
+		driver->clearBuffers( NLMISC::CRGBA::Black );
+
+		NLMISC::CMatrix f;
+		f.identity();
+		driver->setFrustumMatrix( f );
+
+		NL3D::CDriverUser *d = dynamic_cast< NL3D::CDriverUser* >( driver );
+		if( d != NULL )
+		{
+			NL3D::IDriver *id = d->getDriver();
+			
+			NL3D::CVertexBuffer vb;
+			vb.setVertexFormat( NL3D::CVertexBuffer::PositionFlag );
+			vb.setNumVertices( 3 );
+			vb.setPreferredMemory( NL3D::CVertexBuffer::StaticPreferred, false );
+			
+			NL3D::CVertexBufferReadWrite rw;
+			vb.lock( rw );
+			rw.setVertexCoord( 0, -1.0f, -1.0f, 0.0f );
+			rw.setVertexCoord( 1, 1.0f, -1.0f, 0.0f );
+			rw.setVertexCoord( 2, 0.0f, 1.0f, 0.0f );
+			rw.unlock();
+
+			NL3D::CIndexBuffer  ib;
+			ib.setNumIndexes( 3 );
+			ib.setFormat( NL3D::CIndexBuffer::Indices32 );
+			ib.setPreferredMemory( NL3D::CIndexBuffer::StaticPreferred, false );
+			
+			NL3D::CIndexBufferReadWrite iw;
+			ib.lock( iw );
+			iw.setTri( 0, 0, 1, 2 );
+			iw.unlock();
+
+			id->activeVertexBuffer( vb );
+			id->activeIndexBuffer( ib );
+			
+			NL3D::CMaterial mat;
+			mat.setColor( NLMISC::CRGBA::White );
+			id->renderRawTriangles( mat, 0, 1 );
+		}
+
+		driver->swapBuffers();
+	}
+	
+
 	bool CNel3DInterface::loadShape( const std::string &fileName )
 	{
 		NLMISC::CPath::addSearchPath( NLMISC::CFile::getPath( fileName ), false, false );

code/nel/tools/3d/object_viewer_qt/src/plugins/material_editor/nel3d_interface.h

@@ -161,6 +161,7 @@ namespace MaterialEditor
 		bool addSphere();
 		bool addCylinder();
 		bool addTeaPot();
+		void drawTriangle();
 
 		bool loadShape( const std::string &fileName );
 		void clearScene();