Meteor Lake iGPU is a testament to Intel’s mobile graphics aspirations. It’s almost a quarter of an Arc A770. The Xe-LPG architecture used in Meteor Lake inherits Xe-HPG (A770) traits, including hardware raytracing. Here I’ll note a few observations on Intel’s raytracing implementation, using both their official documentation and profiling tools. I’ll also compare with AMD’s raytracing approach. Nvidia would be interesting too, but unfortunately I don’t have enough info on their hardware raytrac...