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ColoRamp value change from 0.501 to higher value results in slowdown and shading error
Open, Confirmed, MediumPublic

Description

System Information
Operating system: Windows-10-10.0.17763 64 Bits
Graphics card: GeForce GTX 1070/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 430.86

Blender Version
Broken: version: 2.80 (sub 74), branch: master, commit date: 2019-06-19 18:29, hash: rBd30f72dfd8ac
Worked: (optional)

Short description of error
ColoRamp value change from 0.501 to 0.502 as input to density results in slowdown and shading error for Principled Volume Shader.

Exact steps for others to reproduce the error
Open attached .blend
Change viewport to Rendered
Change ColoRamp from 0.501 to a higher value
Render speed is dramatically reduced and Volume Shader is incorrectly much brighter

Details

Type
Bug