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The Text3D sample shows how to draw 2D text in a 3D scene. This is useful for displaying statistics or game menus, for example.
| Source: | (SDK root)\Samples\C++\Direct3D\Text3D |
| Executable: | (SDK root)\Samples\C++\Direct3D\Bin\x86 or x64\Text3D.exe |
The following table lists the keys that are implemented. You can use menu commands for the same controls.
| Key | Action |
|---|---|
| ENTER | Starts and stops the scene. |
| SPACEBAR | Advances the scene by a small increment. |
| F2 | Prompts the user to select a new rendering device or display mode. |
| ALT+ENTER | Toggles between full-screen and windowed modes. |
| ESC | Exits the application. |
This sample uses ID3DXFont to display 2D text in a 3D scene. The source code for the class is of most interest to this sample. The class uses Microsoft Windows Graphics Device Interface (GDI) to load a font and output each letter to a bitmap. That bitmap, in turn, is used to create a texture.
When the DrawText function is called, a vertex buffer is filled with polygons that are textured using the font texture created as mentioned above. The polygons may be drawn as a 2D overlay which may be useful for printing statistics.