User-interface with GLScene such as camera movements and reacting to clicks and other mouse events.

Bitmap Font

• Demonstrates writing text on the screen with bitmap fonts
• Uses TGLHUDText and TGLBitmapFont to render 2D text.:
• Includes rotating and scaling a 2D text
• 

• CVS/Demos/interface/bmpfont

Camera

• Moving a camera with the mouse (rotation & translation) and
• zooming/unzooming with the mouse wheel:
• 

• CVS/Demos/interface/camera

Cursor

• Using a hudsprite as mouse cursor, with optional alpha-blended trail.
• Also loading and displaying a picture, retrieving the color under the mouse
• 

• CVS/Demos/interface/cursor

Fading

• Fades an object from one color to another when selected.
• Smoother, progressive coloring of objects under the pointer using the Onprogress event
• 

• CVS/Demos/interface/fadingintf

Font Color

• Fades in and out hud text colors.
• Uses color modulation to colorize and fadein/fadeout 2D text and
• uses time events manager
• 

• CVS/Demos/interface/fontcolor

GUI Demo

• A GUI Form with a button, label and edit box.
• Demontrates the Gui interface system and allows user to change parameters
• 

• CVS/Demos/interface/guidemo

Height Field pick

• Allows the selection of a face on a TGLHeightField.
• Uses Pixelraytoworld procedure for 3D picking.
• Also paints a 3D HeightField interactively.:
• 

• CVS/Demos/interface/hfpick

Pick

• Allows the selection of an object using the TGLSceneBuffer's getpickedobject method.
• Also colors objects under the mouse pointer
• 

• CVS/Demos/interface/pick

Stored Font

• Demonstrates TGLStoredBitmapFont. Allows loading of fonts from file
• 

• CVS/Demos/interface/storedfont

Windows Font

• Uses TGLHUDText and TGLWindowsBitmapFont to to render 2D text.
• The rendering text to OpenGL is with a TrueType Font:
• 

• CVS/Demos/interface/winfont