A ray tracer in Java? That's just absurd! Is Java stepping into C++ privileged territory? Yes it is, thanks to TornadoVM.
TornadoVM is a plugin to OpenJDΚ which allows you to run Java on GPU's, FPGAs and dedicated hardware in order to achieve massive gains in performance. For example, the Java Ray Tracer project based on TornadoVM achieves acceleration from 1 FPS in Java to 60 FPS running on Intel HD Graphics and NVIDIA GPUs.
Performance aside, TornadoVM makes programming on such hardware possible with Java and other JVM-based languages, as such breaching the status quo of C++, OpenCL or Cuda. Last time we examined a similar approach was with Python in "Program Deep Learning on the GPU with Triton":
full article on i-programmer: