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# FALCON/EAGLE user manual 4.62

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Direct3D mode | Scroll Previous Top Next More

In this mode, the driver writes the image data to the invisible area of the graphics card. This process runs automatically and does not have to be controlled by the application software. It requires an installed Direct3D driver, sufficient memory on the graphics card and Direct3D function support by the graphics card. For this purpose, graphics cards generally provide better performance than graphics chips integrated on the mainboard. In Direct3D mode, the CPU load may be lower than in bitmap mode. You can display overlay data and also scale the video image.

The Direct3D mode and the overlay functions can be configured using the is_DirectRenderer() API function.

Mode = IS_SET_DM_DIRECT3D

Fig. 36: Direct3D mode with overlay

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