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1. Adrian Cochrane (alcinnz@floss.social)'s status on Monday, 06-Mar-2023 04:31:12 JST Adrian Cochrane

   in reply to

   Concurrency is applied per output pixel due to the output device's demands, with a decently-designed index used to minimize the cost of hittesting each bounce. This same index can be reused for kinetics simulations!

   Good old computer-science techniques!

   1.1/1.1 Fin for today! Tomorrow: Modern GPU design.

   • Adrian Cochrane (alcinnz@floss.social)'s status on Monday, 06-Mar-2023 04:31:13 JST Adrian Cochrane

     If want to capture the nuances of lighting in 3D computer graphics we switch to using physics simulations! We trace lightrays backwards from the camera to the lights. Or, like in Blender's Cycles renderer, have these lightrays meet in the middle. The formulas are the same!

     In the early days we hitted against spheres, cubes, etc without tracing the beam as it bounces around the scene. "Recursive" raytracing refers to tracing those bounces.

     Implementation is more complex than the concept.

     1/1.1