I am looking for an SDK to use to rapidly prototype opengl apps, test, concepts etc. Something like what is in the sutil/support folders in the OptiX-8.0.0 release, but without the Optix examples etc. Does NVIDIA have anything like this?
I’d recommend looking at the NVIDIA nvpro-samples repository on github
That has a lot of individual OpenGL, Vulkan and Vulkan Raytracing examples.
The nvpro-core repository inside that contains a lot of boilerplate code to help with building an application framework.
The focus is more on Vulkan examples these days because that offers the more modern to-the-metal API, so if you’re free to chose your rasterizer API, have a look at Vulkan as well.