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Blender 2.8 crashes when ColorRamp is used, on Mac OS

Question asked by sunq on Oct 29, 2019

I'm using Blender with RPR(version 2.0.112) on my Mac mini 2018 running macOS Mojave 10.14.6(18G103), with blackmagic egpu(rx580). Days ago, I noticed that blender suddenly dies when I tries to use some kind of materials. After doing some experiments, I could figure out what was causing this issue. The minimal conditions to reproduce this bug was ColorRamp node. Every time I connected 'Color' or 'Fac' output of 'Noise texture' node and 'Fac' input of 'ColorRamp' node (of course only when using RPR for renderer), blender crashed with error. I hope this error to be fixed on future versions, since RPR is currently my only option for using GPU rendering with blender.