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Nodes & PhysicsProject
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Description

This projects includes function nodes, dependency graph, rigid body, particles & hair, cloth, fluid & smoke, mantaflow, softbody, node editor and more.

Module Page: T66307

Recent Activity

Yesterday

Brecht Van Lommel (brecht) updated the task description for T73201: New volume object type.
Thu, Feb 27, 11:47 PM · Nodes & Physics, BF Blender
Brecht Van Lommel (brecht) added a revision to T73201: New volume object type: D6955: Objects: Eevee and workbench rendering of new Volume, Hair, PointCloud.
Thu, Feb 27, 7:23 PM · Nodes & Physics, BF Blender
Philipp Oeser (lichtwerk) closed T74155: 2.82 Mantaflow not writing cache files (unicode characters in filepath) as Resolved.

@Richard Antalik (ISS), thx for getting back.
Looks like this was indeed fixed, see T73770: Mantaflow is unable to bake fluid simulations on non-ASCII file paths, rB4453509d83dc: Fix T73770: Mantaflow is unable to bake fluid simulations on non-ASCII file…, rBb8af5e10620f: Fluid: Updated manta pp files.

Thu, Feb 27, 3:57 PM · Nodes & Physics, BF Blender
Richard Antalik (ISS) added a comment to T74155: 2.82 Mantaflow not writing cache files (unicode characters in filepath).

Sorry, I haven't checked. I was quite certain, that this issue was dealt with recently.

Thu, Feb 27, 3:31 PM · Nodes & Physics, BF Blender
Philipp Oeser (lichtwerk) reopened T74155: 2.82 Mantaflow not writing cache files (unicode characters in filepath) as "Needs Developer to Reproduce".
Thu, Feb 27, 3:16 PM · Nodes & Physics, BF Blender
Philipp Oeser (lichtwerk) added a comment to T74155: 2.82 Mantaflow not writing cache files (unicode characters in filepath).

@Richard Antalik (ISS): that commit is two years old (I just posted this as a reference)
Report is from a version two weeks old and on a 64bit windows... Are you sure this is fixed?

Thu, Feb 27, 3:15 PM · Nodes & Physics, BF Blender
Richard Antalik (ISS) placed T60366: Creating a new image texture in shader editor does not appear among the texture slots up for grabs.
Thu, Feb 27, 2:50 PM · Dependency Graph, Animation & Rigging, Nodes & Physics, BF Blender
Richard Antalik (ISS) merged task T74155: 2.82 Mantaflow not writing cache files (unicode characters in filepath) into T50630: fluid cache folder bug (cyrillic in path).
Thu, Feb 27, 2:40 PM · Nodes & Physics, BF Blender
Philipp Oeser (lichtwerk) renamed T74155: 2.82 Mantaflow not writing cache files (unicode characters in filepath) from 2.82 Mantaflow not writing cache files to 2.82 Mantaflow not writing cache files (unicode characters in filepath).
Thu, Feb 27, 2:38 PM · Nodes & Physics, BF Blender
Richard Antalik (ISS) added a comment to T74155: 2.82 Mantaflow not writing cache files (unicode characters in filepath).

This should be resolved in 2.83 by rBb0af44fa4d7a: Fix T50630: Fluid fails on win32 w/ unicode paths

Thu, Feb 27, 2:37 PM · Nodes & Physics, BF Blender
Philipp Oeser (lichtwerk) changed the status of T74155: 2.82 Mantaflow not writing cache files (unicode characters in filepath) from Needs Information from User to Needs Developer to Reproduce.

Just stumbled upon possibly related:

Thu, Feb 27, 2:37 PM · Nodes & Physics, BF Blender
Gustav Mårdestam (Carrotcakee) added a comment to T74155: 2.82 Mantaflow not writing cache files (unicode characters in filepath).

I'm having the exact same problem. Other simulation caches are writing fine on the disk, but not Mantaflow.

Thu, Feb 27, 2:05 PM · Nodes & Physics, BF Blender
Yuriy (Faraday) added a comment to T74171: Mantaflow: Slight jitter of the Domain object. Gas..

Frames 88-89.

Thu, Feb 27, 10:19 AM · Nodes & Physics, BF Blender
Richard Antalik (ISS) changed the status of T73945: Calculate rigid body to Frame not working from Needs Information from User to Confirmed.

There should be similar report already, which I can't find. I will confirm this in case I don't remember correctly.

Thu, Feb 27, 12:23 AM · Nodes & Physics, BF Blender

Wed, Feb 26

Richard Antalik (ISS) changed the status of T73447: Meshing of fluid particle system doesnt appear to capture cavities properly on a plunging wave. from Needs Information from User to Needs Developer to Reproduce.
Wed, Feb 26, 11:24 PM · Nodes & Physics, BF Blender
Brecht Van Lommel (brecht) added a revision to T73201: New volume object type: D6945: Objects: add Volume object type, and prototypes for Hair and PointCloud.
Wed, Feb 26, 8:23 PM · Nodes & Physics, BF Blender
Richard Antalik (ISS) changed the status of T74171: Mantaflow: Slight jitter of the Domain object. Gas. from Needs Triage to Needs Information from User.

@Yuriy Thanks for simplified case. Can you also point out frames to look for? I am looking at cube render and don't see anything extraordinary

Wed, Feb 26, 6:40 PM · Nodes & Physics, BF Blender
Sebastian Parborg (zeddb) accepted D6911: Cloth: Fix T65568: sewing and self collision issue.

LGTM :)

Wed, Feb 26, 6:02 PM · Nodes & Physics, Physics
Richard Antalik (ISS) updated the task description for T74171: Mantaflow: Slight jitter of the Domain object. Gas..
Wed, Feb 26, 5:09 PM · Nodes & Physics, BF Blender
Philipp Oeser (lichtwerk) added a comment to T74224: Crash with Boids containing Fight Rule.

Testing a bit more:

Wed, Feb 26, 5:02 PM · Nodes & Physics, BF Blender
Philipp Oeser (lichtwerk) added a comment to T66383: Boids particle system crash.

Blender seems to hang here:

Wed, Feb 26, 5:02 PM · Nodes & Physics, BF Blender
Vyacheslav (hitrpr) added a comment to T74219: Shading change (smooth/flat) resets current simulation cache. .

I agree, that it is changing data, but this data is unrelated to simulation.
So I hope it will be checked later, what els is unrelated and should not interrupt caching.

Wed, Feb 26, 4:54 PM · Nodes & Physics, BF Blender
Richard Antalik (ISS) changed the status of T74135: Importing an Alembic file will result in slow rigidbody baking from Needs Information from User to Confirmed.
Wed, Feb 26, 4:40 PM · Nodes & Physics, BF Blender
Bastien Montagne (mont29) changed the subtype of T74219: Shading change (smooth/flat) resets current simulation cache. from "Report" to "Known Issue".

Well, this is changing the data... More like a known issue, or even just a TODO imho. Definitively not a bug.

Wed, Feb 26, 4:29 PM · Nodes & Physics, BF Blender
Ish Bosamiya (ish_bosamiya) added a comment to D6911: Cloth: Fix T65568: sewing and self collision issue.

LGFM, but it might be good to wait another day to see what other reviewers think.

Wed, Feb 26, 3:36 PM · Nodes & Physics, Physics
Jacques Lucke (JacquesLucke) added a comment to T74220: Mantaflow Color Mapping not ignoring alpha value.

Simply adding straight_to_premul_v4(out); to the end of BKE_colorband_evaluate seems to make it behave as I'd expect. No idea of this is the correct fix. workbench_volume_frag.glsl seems to expect that rgb = 0 when alpha = 0.

Wed, Feb 26, 3:35 PM · EEVEE & Viewport, Nodes & Physics, BF Blender
Germano Cavalcante (mano-wii) accepted D6911: Cloth: Fix T65568: sewing and self collision issue.

LGFM, but it might be good to wait another day to see what other reviewers think.

Wed, Feb 26, 3:33 PM · Nodes & Physics, Physics
Yuriy (Faraday) added a comment to T74171: Mantaflow: Slight jitter of the Domain object. Gas..

Most likely, jitter occurs when the adaptive Domain begins to trim the excess voxels. When extra voxels are removed, the noise information becomes incorrect and the noise shows artifacts.



And another test.

Wed, Feb 26, 3:27 PM · Nodes & Physics, BF Blender
Ish Bosamiya (ish_bosamiya) updated the diff for D6911: Cloth: Fix T65568: sewing and self collision issue.

Updated with the requested changes.

Wed, Feb 26, 3:22 PM · Nodes & Physics, Physics
Richard Antalik (ISS) changed the status of T74220: Mantaflow Color Mapping not ignoring alpha value from Needs Triage to Confirmed.
Wed, Feb 26, 2:32 PM · EEVEE & Viewport, Nodes & Physics, BF Blender
Richard Antalik (ISS) changed the status of T74219: Shading change (smooth/flat) resets current simulation cache. from Needs Triage to Confirmed.
Wed, Feb 26, 2:23 PM · Nodes & Physics, BF Blender
Richard Antalik (ISS) added a comment to T74171: Mantaflow: Slight jitter of the Domain object. Gas..

I would suggest trying to strip this file from any unnecessary things such as camera animation.
Preferably also simplifying simulation. With file as is now it may be impossible to debug.

Wed, Feb 26, 12:38 PM · Nodes & Physics, BF Blender
Philipp Oeser (lichtwerk) changed the status of T74224: Crash with Boids containing Fight Rule from Needs Triage to Confirmed.

Can confirm.
For me, blender hangs
T66383: Boids particle system crash might be related, checking if this is a duplicate...

Wed, Feb 26, 10:48 AM · Nodes & Physics, BF Blender
Yuriy (Faraday) added a comment to T74171: Mantaflow: Slight jitter of the Domain object. Gas..

I found out that jitter only appears with Noise enabled in the Domain settings. Without noise, baked smoke does not tremble. In the video, the result is first with noise, then without noise.
I downloaded the cache. Only 180-190 frames.

Wed, Feb 26, 10:13 AM · Nodes & Physics, BF Blender
Yuriy (Faraday) updated the task description for T74171: Mantaflow: Slight jitter of the Domain object. Gas..
Wed, Feb 26, 9:48 AM · Nodes & Physics, BF Blender
Mustafa I (m.i) added a comment to T73474: Mantaflow: Liquid simulation appears to be unaffected by scale or "Real World Size" parameters..

Hi, I am having same problems.

Wed, Feb 26, 6:15 AM · Nodes & Physics, BF Blender
Andrew Price (andrewprice) updated the task description for T74192: Mantaflow 'Dissolve' broken for Flame smoke.
Wed, Feb 26, 2:40 AM · Nodes & Physics, BF Blender
Andrew Price (andrewprice) updated the task description for T74192: Mantaflow 'Dissolve' broken for Flame smoke.
Wed, Feb 26, 2:40 AM · Nodes & Physics, BF Blender
Andrew Price (andrewprice) updated the task description for T74192: Mantaflow 'Dissolve' broken for Flame smoke.
Wed, Feb 26, 2:39 AM · Nodes & Physics, BF Blender
Andrew Price (andrewprice) updated the task description for T74192: Mantaflow 'Dissolve' broken for Flame smoke.
Wed, Feb 26, 2:37 AM · Nodes & Physics, BF Blender
Mansur Şamil Güngör (msamilg) added a comment to T74155: 2.82 Mantaflow not writing cache files (unicode characters in filepath).

I'm having the exact same problem. Other simulation caches are writing fine on the disk, but not Mantaflow.

Wed, Feb 26, 12:23 AM · Nodes & Physics, BF Blender

Tue, Feb 25

Gustav Mårdestam (Carrotcakee) added a comment to T74155: 2.82 Mantaflow not writing cache files (unicode characters in filepath).
Tue, Feb 25, 8:28 PM · Nodes & Physics, BF Blender
Brecht Van Lommel (brecht) updated the task description for T73201: New volume object type.
Tue, Feb 25, 6:58 PM · Nodes & Physics, BF Blender
Brecht Van Lommel (brecht) updated the task description for T73201: New volume object type.
Tue, Feb 25, 6:51 PM · Nodes & Physics, BF Blender
Germano Cavalcante (mano-wii) updated subscribers of D6911: Cloth: Fix T65568: sewing and self collision issue.

Looks good. I'm not sure about the changes to the GHash code. Maybe @Campbell Barton (campbellbarton) could take a look at that part?

Tue, Feb 25, 6:36 PM · Nodes & Physics, Physics
Ish Bosamiya (ish_bosamiya) updated the diff for D6911: Cloth: Fix T65568: sewing and self collision issue.

Use GHash with inthash_v2 for sewing edges test during self collision

Tue, Feb 25, 5:52 PM · Nodes & Physics, Physics
Ankit (ankitm) added a comment to T74155: 2.82 Mantaflow not writing cache files (unicode characters in filepath).

Do you have protected folders turned on ? https://www.tenforums.com/tutorials/87858-add-protected-folders-controlled-folder-access-windows-10-a.html

Tue, Feb 25, 5:07 PM · Nodes & Physics, BF Blender
Brecht Van Lommel (brecht) updated the task description for T73201: New volume object type.
Tue, Feb 25, 2:46 PM · Nodes & Physics, BF Blender
Yevgeny Makarov (jenkm) added a comment to T73168: In Particle Edit mode, Emitter particles are not visible in the viewport.

Tue, Feb 25, 2:07 PM · Nodes & Physics, BF Blender
Sybren A. Stüvel (sybren) added a comment to T73168: In Particle Edit mode, Emitter particles are not visible in the viewport.

@Yevgeny Makarov (jenkm) Do you have an example file for us that works in 2.79?

Tue, Feb 25, 1:46 PM · Nodes & Physics, BF Blender