Datapath VisionSDI2 User Manual - Page 12

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Datapath VisionSDI2 User Manual

Using the card with other Datapath products

The VisionSDI2 captures data and stores it in an on-board video buffer. This data is then copied using
DMA to the host system for display, storage or streaming.
When a Datapath graphics card is used, VisionSDI2 transfers the data directly to the graphics card thereby
increasing performance. The VisionSDI2 sends the relevant portions of each captured image to each
display channel and instructs each channel to use its graphics engine to render the data. This fully utilises
the hardware and dramatically increases performance.
When a Direct3D compatible graphics card is used the data can be transferred direct to the graphics card
in a similar manner to the Datapath graphics card with the same benefit of non-tearing captures.
When the data is displayed on a non Datapath graphics card, the VisionSDI2 sends the data to system
memory or direct to the graphics card, dependant on the software used for display.
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