Will there be gpu hardware ray tracing acceleration within 3 years?
Or external gpu support?
Ray tracing hardware acceleration
Metal Performance Shaders provides GPU ray tracing: https://developer.apple.com/documentation/metalperformanceshaders/metal_for_accelerating_ray_tracing
It seems that Metal ray tracing uses HWRT on AMD GPUs. As for Apple GPUs, Apple has been working with Imagination for years on energy-efficient HWRT (according to rumors). Hopefully we'll see HWRT debut with the M2 Pro or M3 chip and the Apple9 family.