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Line artifacts in Mantaflow smoke sim when using "Noise"
Open, Needs Triage by DeveloperPublic


System Information
Operating system: Windows-10-10.0.17763 64 Bits
Graphics card: GeForce GTX 660 Ti/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 441.08

Blender Version
Broken: version: 2.81 (sub 12), branch: fluid-mantaflow, commit date: 2019-10-19 21:25, hash: rB998c8d18f226
Worked: (optional)

Short description of error
When Noise is activated in a Mantaflow smoke sim, hash line artifacts show up in the early frames of the sim.
With Noise active:

With Noise switched off:

Here's the .blend file:

Exact steps for others to reproduce the error
Create mantaflow smoke sim, bake smoke, bake noise, notice artifacts.



Event Timeline

We don't usually take bug reports in work in progress branches, but I will leave to @Sebastián Barschkis (sebbas) to decide what to do here.
Thanks for reporting and testing the functionalities either way.

I can confirm I can reproduce the problem even at render time.

Yes, thanks for reporting. I will look into this now.