Operating system: Macbook Air
Graphics card: Intel HD Graphics 6000 1536 MB
Broken: eevee rendering (Blender V2.8)
Worked: I fixed it by Restarting the Program.
Short description of error
After Adding a whole bunch of nodes changing principles using eevee (Development) the program lagged and started to turn black and spread on the screen. i couldent take a picture of the problem at the time but i did get the node edit i was using that made it occur.
Exact steps for others to reproduce the error
To Redo (At least what i did) Go to where the last node is connected to the output and disconnect it. After connect it again and mess around with the noise texture plus the color ramp (While connected to the output). It gave that weird glitch to me but it might be a low core problem or something. Im not that worried but i hope you can fix it incase someone else runs into this.