Nvidia RTX 20 series gpu ray tracing
Does anyone know what that new feature they are implementing into the gpu called ray tracing. Does anyone know how it works and what it does ? Articles I have read explain it to be an enhancment for light graphical behaviour in games. Does that mean it will help increase effects like shadows and other light options in video games. Also does anyone know if ray tracing will help prevent stress on gpu since lighting effects usually are heavy on the gpu.
Just want opinions and your guys knowledge so far about the gpu
So ray tracing is a way of simulating how light behaves in a 3d environment. You have a light source emitting light rays and ray tracing basically follows these rays and when that ray hits an object it will then bounce off in a different direction. It will also have a different intensity or colour depending on the surface of the object it bounced of. Because there are a lot of calculation involved on working out the angle of deflection and its new properties it causes a really heavy load on GPUs and graphical engines. Typically in a 3D scene that is pre-rendered a lot of the rendering time is consumed by performing ray tracing. Now apply that to a real-time engine and it becomes near impossible to do. The ability to render ray tracing in real time is basically the next graphical leap for games. Then there's things like sub surface scattering which go beyond ray tracing to emulate how light behaves within surfaces, such as skin.