System Information
Operating system: Windows 10
Graphics card: Nvidia GeForce GTX 1060 Version 419.35
Blender Version
Broken: 2.80 Release Candidate 2 (downloaded today, no more information on the splash screen)
Short description of error
In the shader editor, the modulo operations returns sometimes a negative number after taking zero as parameter (each vertex of the wall has a Y coordinate of 0). This seems to happen on random pixels : sometimes the number returned by the modulo seems to be equal to 0, and sometimes to -1. The result depends on the point of view.
Screenshot with this modulo operator :
Screenshot without the modulo : here the behaviour is normal so the problem comes from the modulo.
I think that the modulo should always return the same value on the entire wall since it has one single Y coordinate (return 0 if I am right).
Exact steps for others to reproduce the error
Go into render mode. Move the viewpoint and test values on the "greater than" node.
Blender file :