I have a 2011-era laptop with Optimus graphics (Intel+nVidia both) and I was actually shocked at the time I got it that MAME ran just fine with D3D compositing using the Intel GPU. (You can probably easily find my posts on here from that time, in fact.)
It's actually been fine for about ten years now, believe it or not.
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Try checking the MAME manual at http://docs.mamedev.org
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