The information in this section pertains only to applications written in C and C++. See Direct3D Immediate Mode Visual Basic Tutorials.

Whenever your application isn't processing system messages, it can render a frame of a scene. The Triangle sample renders the scene in the Render3DEnvironment application-defined function called from WinMain whenever the message queue is empty. The Render3DEnvironment function subdivides the task into three substeps:

• Step 5.1: Update the Scene
• Step 5.2: Render the Scene
• Step 5.3: Update the Display