It's actually easier to just program for Direct X 9 and add enhancements for Direct X 10... infact this is leaps and bounds easier than reprogramming for Open GL.... infact...
u dont REALLY have to program for Direct X 10 if you want to lets say, Boycott Vista / DX10 , then programming for Direct X 9 will still reach the massive audience... and Open GL is still a downgrade compared to DX9.
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It's actually easier to just program for Direct X 9 and add enhancements for Direct X 10 ... infact this is leaps and bounds easier than reprogramming for Open GL. ... infact...
u dont REALLY have to program for Direct X 10 if you want to lets say, Boycott Vista / DX10 , then programming for Direct X 9 will still reach the massive audience ... and Open GL is still a downgrade compared to DX9.