Improved 2D-3D drawing

Depth test disabled for 2D and only used on 3D; consequently LINES vs
TRIANGLES vs QUADS buffers drawing order maters... but blending also
works ok.

examples/core_3d_camera_first_person.c

@@ -74,10 +74,13 @@ int main()
                 }
 
             End3dMode();
+            
+            DrawRectangle( 10, 10, 220, 70, Fade(SKYBLUE, 0.5f));
+            DrawRectangleLines( 10, 10, 220, 70, BLUE);
 
-            DrawText("First person camera default controls:", 20, 20, 10, GRAY);
-            DrawText("- Move with keys: W, A, S, D", 40, 50, 10, DARKGRAY);
-            DrawText("- Mouse move to look around", 40, 70, 10, DARKGRAY);
+            DrawText("First person camera default controls:", 20, 20, 10, BLACK);
+            DrawText("- Move with keys: W, A, S, D", 40, 40, 10, DARKGRAY);
+            DrawText("- Mouse move to look around", 40, 60, 10, DARKGRAY);
 
         EndDrawing();
         //----------------------------------------------------------------------------------

examples/core_3d_camera_free.c

@@ -59,13 +59,16 @@ int main()
                 DrawGrid(10, 1.0f);
 
             End3dMode();
-
-            DrawText("Free camera default controls:", 20, 20, 10, GRAY);
-            DrawText("- Mouse Wheel to Zoom in-out", 40, 50, 10, DARKGRAY);
-            DrawText("- Mouse Wheel Pressed to Pan", 40, 70, 10, DARKGRAY);
-            DrawText("- Alt + Mouse Wheel Pressed to Rotate", 40, 90, 10, DARKGRAY);
-            DrawText("- Alt + Ctrl + Mouse Wheel Pressed for Smooth Zoom", 40, 110, 10, DARKGRAY);
-            DrawText("- Z to zoom to (0, 0, 0)", 40, 130, 10, DARKGRAY);
+            
+            DrawRectangle( 10, 10, 320, 133, Fade(SKYBLUE, 0.5f));
+            DrawRectangleLines( 10, 10, 320, 133, BLUE);
+            
+            DrawText("Free camera default controls:", 20, 20, 10, BLACK);
+            DrawText("- Mouse Wheel to Zoom in-out", 40, 40, 10, DARKGRAY);
+            DrawText("- Mouse Wheel Pressed to Pan", 40, 60, 10, DARKGRAY);
+            DrawText("- Alt + Mouse Wheel Pressed to Rotate", 40, 80, 10, DARKGRAY);
+            DrawText("- Alt + Ctrl + Mouse Wheel Pressed for Smooth Zoom", 40, 100, 10, DARKGRAY);
+            DrawText("- Z to zoom to (0, 0, 0)", 40, 120, 10, DARKGRAY);
 
         EndDrawing();
         //----------------------------------------------------------------------------------

examples/core_3d_picking.c

@@ -77,7 +77,7 @@ int main()
 
             End3dMode();
             
-            DrawText("Try selecting the box with mouse!", 240, 10, 20, GRAY);
+            DrawText("Try selecting the box with mouse!", 240, 10, 20, DARKGRAY);
             
             if(collision) DrawText("BOX SELECTED", (screenWidth - MeasureText("BOX SELECTED", 30)) / 2, screenHeight * 0.1f, 30, GREEN);