the Meatriding for Nvidia is crazy they didn't invent anything you said
History
Vector displays had a variable refresh rate on their
cathode-ray tube (CRT), depending on the number of vectors on the screen, since more vectors took more time to draw on their screen.
[7]
Since the 2010s decade,
raster displays gained several industry standards for variable refresh rates. Historically, there was only a limited selection of fixed refresh rates for
common display modes.
Using a computer for ray tracing to generate shaded pictures was first accomplished by
Arthur Appel in 1968.
[8] Appel used ray tracing for primary visibility (determining the closest surface to the camera at each image point), and traced secondary rays to the light source from each point being shaded to determine whether the point was in shadow or not.
Later, in 1971, Goldstein and Nagel of
MAGI (Mathematical Applications Group, Inc.)[9] published "3-D Visual Simulation", wherein ray tracing is used to make shaded pictures of solids by simulating the photographic process in reverse. They cast a ray through each pixel in the screen into the scene to identify the visible surface. The first surface intersected by the ray was the visible one. This non-recursive ray tracing-based rendering algorithm is today called "
ray casting". At the ray-surface intersection point found, they computed the surface normal and, knowing the position of the light source, computed the brightness of the pixel on the screen. Their publication describes a short (30 second) film “made using the University of Maryland’s display hardware outfitted with a 16mm camera. The film showed the helicopter and a simple ground level gun emplacement. The helicopter was programmed to undergo a series of maneuvers including turns, take-offs, and landings, etc., until it eventually is shot down and crashed.” A
CDC 6600 computer was used. MAGI produced an animation video called
MAGI/SynthaVision Sampler in 1974.
[10]
