Build / run demo on Linux

[fadavi]

Any change happened after #30 in v1.2?!

[zyablik]

I've got the same issue on ubuntu 17.10 with cuda 8.0.61 (which is available in ubuntu repo)

NvFlexDemoReleaseCUDA_x64 printed "Error creating CUDA context." and exited.

It happened because of NvFlexDeviceCreateCudaContext() in demo/main.cpp returned false

It doesn't fail with cuda 9.2 (you need to download it from nvidia site)

Or you can just comment out exit() call in demo/main.cpp:

	bool success = NvFlexDeviceCreateCudaContext(g_device);

	if (!success)
	{
		printf("Error creating CUDA context.\n");
//		exit(-1);
	}

Looks like success = false doesn't affect anything, at least on my machine all demo scenes works perfectly.

[CK85]

It would be better anyway if FleX supports OpenGL like it does with DirectX...