As expected, Microsoft has announced DirectX 11 at its US Gamefest event.
The software will be backwards compatible with DX10 hardware. There doesn’t appear to have been a release date announced for it.
“We want to break away from purely having a paradigm of pixels, vertices and shaders,” said XNA boss Chris Satchell, speaking in his keynote at the event. “DX11 is totally compatible with DX10. There’s not that 9/10 discontinuity we created before.”
Satchell also explained the delay in switching from 32-bit to 64-bit architecture is a software problem.
“We’ve been shipping 64-bit CPUs on the hardware side for awhile,” he said. “We’re not at the point where the 64-bit OS is catching up. I think we are [there] in the next six to eight months.”
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