I don't know if there is a way to solve this problem? After starting SIBR_viewers on Ubuntu 20, a reminder appears:
Error Using Interop
This application tries to use CUDA/OpenGL interopIt did NoT work for yourcurrent configuration.For highest performance,OpenGL and CUDA must run on the sameGPU on an 0S that supports interop,You can try to pass anon-zero index via--device on a multi-GPU system, and/or tryattaching the monitors to the main CUDA card.On a laptop with one integrated and one dedicated GPU, you can tryto set the preferred GPU via your operating system.
FALLING BACK TO SLOWER RENDERING WITH CPU ROUNDTRIP
I don't know if there is a way to solve this problem? After starting SIBR_viewers on Ubuntu 20, a reminder appears: