Description :

This instruction defines the state flags used to manage the behavior of a viewport.

Parameters :

• ObjectID of the viewport.
• VIEWPORT_DEPTHBUFFERON : Activates the use of the ZBuffer.
  VIEWPORT_DEPTHBUFFEROFF : Deactivates the use of the ZBuffer (Default).
  
  VIEWPORT_CLEARON : Activates the automatic clearing of the viewport (Default).
  VIEWPORT_CLEAROFF : Deactivates the automatic clearing of the viewport.
  
  VIEWPORT_CLEARZON : Activates the automatic clearing of the ZBuffer (Default).
  VIEWPORT_CLEARZOFF : Deactivates the automatic clearing of the ZBuffer.

Examples :

• Basic example :