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mantaflow modular bake flickers using gas fire and fire+smoke
Closed, ResolvedPublicBUG


System Information
Operating system: Windows-10-10.0.18362-SP0 64 Bits
Graphics card: GeForce RTX 2070/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 451.48

Blender Version
Broken: version: 2.90.0 Beta, branch: master, commit date: 2020-08-09 12:07, hash: rB00162e6b7b0f
Worked: (newest version of Blender that worked as expected)

Short description of error
only when baking using the modular method with a fire+smoke flow object. The fire randomly flickers and with a fire flow object, it jumps and seems to skip frames.
Note: this bug is a lot worse in 2.83.4

Exact steps for others to reproduce the error
bake data then noise and after observing that change the flow type to fire+smoke and bake data then noise.

Event Timeline

Richard Antalik (ISS) changed the task status from Needs Triage to Confirmed.Aug 11 2020, 1:50 PM
Richard Antalik (ISS) updated the task description. (Show Details)
Jacques Lucke (JacquesLucke) changed the subtype of this task from "Report" to "Bug".Aug 11 2020, 5:44 PM

@Sebastián Barschkis (sebbas) I get an asan crash (P1577) when I

  1. Bake data and cancel after e.g. 20 frames.
  2. Disable noise and check move current frame to some frame that has been baked already.

Looks like too little memory has been allocated. I tried bisecting it, but it took too long and I stopped at some point..

This should be fixed starting with rB60b2bb3a1cc2.