Add an example for how to use the 2d material settings.

git-svn-id: svn://svn.code.sf.net/p/irrlicht/code/trunk@3079 dfc29bdd-3216-0410-991c-e03cc46cb475

examples/06.2DGraphics/main.cpp

@@ -89,6 +89,12 @@ int main()
 	core::rect<s32> imp1(349,15,385,78);
 	core::rect<s32> imp2(387,15,423,78);
 
+	/*
+	Prepare a nicely filtering 2d render mode for special cases.
+	*/
+	driver->getMaterial2D().TextureLayer[0].BilinearFilter=true;
+	driver->getMaterial2D().AntiAliasing=video::EAAM_FULL_BASIC;
+
 	/*
 	Everything is prepared, now we can draw everything in the draw loop,
 	between the begin scene and end scene calls. In this example, we are
@@ -148,16 +154,18 @@ int main()
 					video::SColor(255,time % 255,time % 255,255));
 
 			/*
-			At last, we draw the Irrlicht Engine logo (without
-			using a color or an alpha channel) and a transparent 2d
-			Rectangle at the position of the mouse cursor.
+			Next, we draw the Irrlicht Engine logo (without
+			using a color or an alpha channel). Since we slightly scale
+			the image we use the prepared filter mode.
 			*/
-
-			// draw logo
-			driver->draw2DImage(images, core::position2d<s32>(10,10),
+			driver->enableMaterial2D();
+			driver->draw2DImage(images, core::rect<s32>(10,10,108,48),
 				core::rect<s32>(354,87,442,118));
+			driver->enableMaterial2D(false);
 
-			// draw transparent rect under cursor
+			/*
+			Finally draw a half-transparent rect under the mouse cursor.
+			*/
 			core::position2d<s32> m = device->getCursorControl()->getPosition();
 			driver->draw2DRectangle(video::SColor(100,255,255,255),
 				core::rect<s32>(m.X-20, m.Y-20, m.X+20, m.Y+20));