In order for you to play Waveform on macOS with minimal graphics settings, your computer must meet the following requirements
Operating System:
OS X version Snow Leopard 10.6.3, or later.
Processor (CPU):
Intel, 1GHz or higher
Memory (RAM):
512 MB
Hard Disk Space:
660 MB
Video Card:
OpenGL compatible graphics card with 128 MB of memory
Sound:
Any sound card capable of stereo output