Realtime raytraced shadows?

Precise shadows (like in not shadow maps, which are somewhat crappy) are quite desirable for architectural graphics, sun studies etc. I’m using Rhino Render / Cycles to get them, via a modified display mode like this:

Works, but is still slow. Question is, would OpenGL basically support raytraced shadows? (Got a GeForce RTX 2060 super)

How does Sketchup and the likes do this trick, which got these nice realtime sharp shadows?

Or, can the raytracing render settings somehow be tweaked to be super fast for the purpose and still give ‘perfect’ shadows?


Yeah, raytraced shadows possible in OpenGL? Anyone?