DX10 question

I'm not sure about input and sound - but the graphics part will be quite different from what we have now. The concept of 'caps' will go away - which also means that DX10 will *only* run with hardware created for DX10. They are also doing some major changes to improve performance and interestingly the overhead cost of a DP will go down a lot.

Have a look through the presenteations Jack provided in this thread. They're pretty useful, and explain a lot about the new features.

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Original post by The C modest god Are they going to change all the interfaces and structure in DX10? Including for direct input and direct sound?

Pretty much, yea. The D3D10 interfaces will be a lot like they are now. However, DInput and DSound will be completely transformed into XInput and XACT, respectively. XInput is a lot like the input system used on the XBox.