Fluid Simulator Stops in Complex Scene #41606
Labels
No Label
Interest
Alembic
Interest
Animation & Rigging
Interest
Asset Browser
Interest
Asset Browser Project Overview
Interest
Audio
Interest
Automated Testing
Interest
Blender Asset Bundle
Interest
BlendFile
Interest
Collada
Interest
Compatibility
Interest
Compositing
Interest
Core
Interest
Cycles
Interest
Dependency Graph
Interest
Development Management
Interest
EEVEE
Interest
EEVEE & Viewport
Interest
Freestyle
Interest
Geometry Nodes
Interest
Grease Pencil
Interest
ID Management
Interest
Images & Movies
Interest
Import Export
Interest
Line Art
Interest
Masking
Interest
Metal
Interest
Modeling
Interest
Modifiers
Interest
Motion Tracking
Interest
Nodes & Physics
Interest
OpenGL
Interest
Overlay
Interest
Overrides
Interest
Performance
Interest
Physics
Interest
Pipeline, Assets & IO
Interest
Platforms, Builds & Tests
Interest
Python API
Interest
Render & Cycles
Interest
Render Pipeline
Interest
Sculpt, Paint & Texture
Interest
Text Editor
Interest
Translations
Interest
Triaging
Interest
Undo
Interest
USD
Interest
User Interface
Interest
UV Editing
Interest
VFX & Video
Interest
Video Sequencer
Interest
Virtual Reality
Interest
Vulkan
Interest
Wayland
Interest
Workbench
Interest: X11
Legacy
Blender 2.8 Project
Legacy
Milestone 1: Basic, Local Asset Browser
Legacy
OpenGL Error
Meta
Good First Issue
Meta
Papercut
Meta
Retrospective
Meta
Security
Module
Animation & Rigging
Module
Core
Module
Development Management
Module
EEVEE & Viewport
Module
Grease Pencil
Module
Modeling
Module
Nodes & Physics
Module
Pipeline, Assets & IO
Module
Platforms, Builds & Tests
Module
Python API
Module
Render & Cycles
Module
Sculpt, Paint & Texture
Module
Triaging
Module
User Interface
Module
VFX & Video
Platform
FreeBSD
Platform
Linux
Platform
macOS
Platform
Windows
Priority
High
Priority
Low
Priority
Normal
Priority
Unbreak Now!
Status
Archived
Status
Confirmed
Status
Duplicate
Status
Needs Info from Developers
Status
Needs Information from User
Status
Needs Triage
Status
Resolved
Type
Bug
Type
Design
Type
Known Issue
Type
Patch
Type
Report
Type
To Do
No Milestone
No project
No Assignees
5 Participants
Notifications
Due Date
No due date set.
Dependencies
No dependencies set.
Reference: blender/blender#41606
Loading…
Reference in New Issue
No description provided.
Delete Branch "%!s(<nil>)"
Deleting a branch is permanent. Although the deleted branch may continue to exist for a short time before it actually gets removed, it CANNOT be undone in most cases. Continue?
System Info
uname -a output: Linux iceraven 3.14-2-amd64 #1 SMP Debian 3.14.15-2 (2014-08-09) x86_64 GNU/Linux (jessie)
CPU: Intel i7-4700MQ
GPU: NVIDIA 780M
Desktop Environment: GNOME 3 (latest)
GPU Driver: nvidia-driver package on jessie repo (340.29)
CUDA Driver: nvidia-cuda-toolkit package on jessie repo (5.5; just stopped working as support for pre-6.0 just dropped)
Blender Version:
Broken: Latest Dev Version (2.71.6, Hash:
24ea3ab
)Worked: None yet. Testing 2.71 stable as I'm typing.
Description
I have a complex scene where a bullet impacts a coffee cup, with coffee inside, that goes everywhere. It involves a large domain, high resolution fluid simulation, and hundreds of collision objects that are keyframed from a Rigid Body simulation.
At one point this worked flawlessly. However, now it merely stops once reaching enough complexity. Here's what I've been able to gather:
It probably means nothing, but I uncommented the Experimental GPU features in kernel_types.h before compiling Blender.
NOTE: In this file all the keyframing has been moved back 27 frames, so you don't have to wait more than neccessary for a complex high-res bake.
Thank you in advance!
Changed status to: 'Open'
Added subscriber: @Darkfie9825
#41612 was marked as duplicate of this issue
Added subscriber: @Sergey
Does it stop or blender just crashes?
Edit: also, please run blender from the command line and see whether any issues are being reported there.
Added subscribers: @MichaelN-3, @mont29
◀ Merged tasks: #41612.
Windows 7
Intel i5-2520m @2.5GHz 2 Kerne
8GB Speicher
Intel HD Graphics Family
The fluid simulator simply stops. Blender keeps on running just fine.
I'm not quite sure what you mean by runnning blender from the command line. To start the blender dev release, I use the script supplied in the compiled build (when I use the blender command, or click on blender in Applications, it's actually a symbolic link to that script), which is the one that fails. I've heard of methods to bake from the command line, but you'd have to clarify a bit more.
Also, quite interestingly, Blender 2.71 stable just did a perfect bake overnight. Some of the bake files are pretty large - the largest is 91MB for one of the complex frames, with 15 for the preview. Could the bug in the more recent version be related to that complexity?
System Information
Windows 7
Blender Version 2.71
simulation stops and no fluid flows???
just start the baking and you will see
wasserbecken_mit_Rührer_mit_Stromstörer_6.blend
MichealN: Your CPU doesn't look all too powerful, maybe the calculations are a little too much... Does it by any chance fail earlier if you up the resolution
It could be the same issue - from what I can gather, my bake becomes more unstable as I up the resolution, therefore the computation volume. There wouldn't by any chance be a time out counter for fluid sims, like there is for building BVH?
Something else to consider is that the only time it worked (on 2.7 stable), I clicked bake and didn't click anything else - I didn't even leave the window or move the mouse. Otherwise, I would be browing the internet, checking (not changing) other settings, etc.
Darkfie9825: followimg your experience I also did not touched the mouse again after Start Baking. And it looked the simulation run at least for one hour.
Thanks for this. But sounds still strange.
The issue i stil see is that the domain is filled with fluid from the very beginning. It shall be empty and filled with the inflow sphere.
So how can the initial condition of a domain be defined?
Added subscribers: @miikah, @n_t
Daniel, any thoughts? @n_t might also be interested, same to @miikah.
Added subscriber: @JulianEisel
Are there news on this? @Darkfie9825, do you still have the issue in Blender 2.74 RC ?
As mentioned, it did end up working; it could be an update or me just not touching anything. The .blend itself could also be the culprit; I did mess around quite a bit with a lot of pieces during that project. In any case, I haven't personally had problems with the fluid simulator since.
Considering that I was running a self-compiled dev release (three words that tend to lead to stress put together :) ) on the testing version of Debian, just before a freeze... Even considering that it was reproducible, any number of factors could have played into the weirdness; factors that might well be gone considering the freeze and just general development.
To be thourough, though, I'll run the blend overnight on the RC.
Changed status from 'Open' to: 'Archived'
Eeek, somehow I have missed your answer. Anyway, glad to hear it's working again :)