Roger (K8RI) said:
I think there is a lot missed here. I'd bet that SP1 is still going
to be backwards compatible. IOW your DX10 hardware may not be able to
run DX10.1, but Vista with SP1 will either be capable of running DX10
or DX10.1 will be backwards compatible with DX9 and 10. You will just
need to upgrade the hardware to run DX10.1.
Think of it this way, if DX10.1 is, or will be an integral part of SP1
and requires a video card update it would render all computers with
preloaded Vista inoperable. It would also render any hardware running
Vista that had not been upgraded inoperable. MS may be cash heavy but
they'd end up hungry were they to obsolete all that hardware and
render millions of machines inoperable in a single blow.
I think we will find that DX10 will remain available or DX10.1 will be
backwards compatible, or SP1 will run DX9, 10, and 10.1
I agree their should be some level of backwards compatibility for DX10 and
DX9 boards with reduced functionality. However, If I had just purchased a
DX10 card believing it was the newest best toy on the market, and I find out
that something has changed under my feet, I would not be a happy camper.
I have been planning to purchase a new DX10 graphics board for my computer
sometime around November-December this year, providing that Vista SP1 was
released as planed sometime in November and install the two together.
It looks like graphics cards just got set back 6+ months or more in
production cycles for the boards to catch up with DX10.1. Perhaps ATI knew
this was coming for months, and that is why they haven't released anything
exciting that can do DX10 so far.
One of the requirements for DX10 certification is that the graphics board
must perform a minimum set of features as outlined in the documentation.
This is new to DX10, before this a manufacturer had choices which features
the board would perform. Not so with DX10, either you do them, or you are
not DX10 certified.
This is a mess, if MS is going to move the goal post around, the graphics
makers are not going to be happy, let alone the consumers. This all comes
on top of the '07 Christmas season. Perhaps this is just one of those trial
balloons MS is famous about sending out to see what happens. This is all
strange to me.
William