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[BigTnaples]

If Physx didn't exist, Gearbox would have just left the game as is and no one would have cared that they didn't spend additional dev time making jello-water. The same applies to every other game that Nvidia has paid off to use it.

Unless GPU based physics was something easy to implement on both AMD and Nvidia cards.

As of now, the only incentive a dev has to implement an Nvidia exclusive feature is if Nvidia pays for it.