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Nodes & PhysicsProject
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Members (4)

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Description

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

Module Page: T66307
Coordinator: @Jacques Lucke (JacquesLucke)
Owners: @Jacques Lucke (JacquesLucke) @Sergey Sharybin (sergey) @Brecht Van Lommel (brecht) @Sybren A. Stüvel (sybren)

Recent Activity

Fri, Sep 13

Philipp Oeser (lichtwerk) added a comment to T69741: Particles : Keyed Physics target UI greyed out as well as crash when clicking on a particle slot without a valid target.

I've pushed fixes for both problems, the one you describe was because code skipped the vertex buffer creation in case of keyed particles without a valid target.
So this should be resolved, feel free however to comment again if issues persist...

Fri, Sep 13, 10:27 PM · Nodes & Physics, User Interface, BF Blender
Francisco Martínez (shiro) added a comment to T69741: Particles : Keyed Physics target UI greyed out as well as crash when clicking on a particle slot without a valid target.

It goes a bit further than that. After debugging the error, I found out that, when setting the physics' type to keyed, and proceeding to trigger the crash, the object's particle system somehow loses it's psys->particles reference, which in turn makes it return a psys->totpart of 0, which makes the object become an "invalid target", which makes the gpu_batch module thingie crash because verts is 0. I've been trying to find out why the particle reference is clearing its psys->particles.
Maybe there's something that's missing, something i don't understand about blender's pipeline.

Fri, Sep 13, 7:06 PM · Nodes & Physics, User Interface, BF Blender
Philipp Oeser (lichtwerk) added a revision to T69741: Particles : Keyed Physics target UI greyed out as well as crash when clicking on a particle slot without a valid target: D5782: Fix Particles Keyed Physics target UI greyed out.
Fri, Sep 13, 11:05 AM · Nodes & Physics, User Interface, BF Blender
Philipp Oeser (lichtwerk) added a revision to T69741: Particles : Keyed Physics target UI greyed out as well as crash when clicking on a particle slot without a valid target: D5781: Fix Particles: Keyed Physics crash when clicking on a particle slot without a valid target.
Fri, Sep 13, 10:43 AM · Nodes & Physics, User Interface, BF Blender
Philipp Oeser (lichtwerk) renamed T69741: Particles : Keyed Physics target UI greyed out as well as crash when clicking on a particle slot without a valid target from Particle system slot to Particles : Keyed Physics target UI greyed out as well as crash when clicking on a particle slot without a valid target.
Fri, Sep 13, 9:56 AM · Nodes & Physics, User Interface, BF Blender
Philipp Oeser (lichtwerk) added projects to T69741: Particles : Keyed Physics target UI greyed out as well as crash when clicking on a particle slot without a valid target: User Interface, Nodes & Physics.

Can confirm, problem seems to be twofold:

  • under Relations, the Target Object as well as System counter should still be active when you dont have a valid particle target specified [ after all, this is how you would pick a valid one ;) ]
  • crash should not happen
Fri, Sep 13, 9:55 AM · Nodes & Physics, User Interface, BF Blender

Thu, Sep 12

Philipp Oeser (lichtwerk) added a project to T62882: Dynamic Paint weight paint mode not working?: Nodes & Physics.

Dare setting this to High prio, since this is just a broken feature / regression...

Thu, Sep 12, 6:47 PM · Nodes & Physics, BF Blender
Philipp Oeser (lichtwerk) closed T69582: Empties no longer support Rigid Body Constraints as Resolved by committing rB2cec4af124d4: Fix T69582: Empties no longer support Rigid Body Constraints.
Thu, Sep 12, 11:26 AM · Nodes & Physics, BF Blender
Philipp Oeser (lichtwerk) raised the priority of T69582: Empties no longer support Rigid Body Constraints from Confirmed, Medium to Confirmed, High.
Thu, Sep 12, 10:34 AM · Nodes & Physics, BF Blender
Philipp Oeser (lichtwerk) added a revision to T69582: Empties no longer support Rigid Body Constraints: D5772: Fix T69582: Empties no longer support Rigid Body Constraints.
Thu, Sep 12, 10:34 AM · Nodes & Physics, BF Blender
Philipp Oeser (lichtwerk) merged T69583: Can not add rigidbody constraint to empty in Blender 2.81 into T69582: Empties no longer support Rigid Body Constraints.
Thu, Sep 12, 10:18 AM · Nodes & Physics, BF Blender
Philipp Oeser (lichtwerk) added a project to T69582: Empties no longer support Rigid Body Constraints: Nodes & Physics.

Can confirm, checking...
probably caused by rB1342d1879e12

Thu, Sep 12, 10:17 AM · Nodes & Physics, BF Blender

Wed, Sep 11

Philipp Oeser (lichtwerk) added a revision to T69488: Hair particles: hair particle rekey disolves the hair, then crashes Blender: D5752: Fix T69488: Hair particles: rekey disolves the hair then crashes.
Wed, Sep 11, 11:37 AM · Nodes & Physics, BF Blender

Tue, Sep 10

Philipp Oeser (lichtwerk) renamed T69718: Particles: 'render as' collection does not render/display instances inside that collection from Particle emitter does not emit all group objects to Particles: 'render as' collection does not render/display instances inside that collection.
Tue, Sep 10, 11:21 PM · Nodes & Physics, BF Blender
Philipp Oeser (lichtwerk) added a project to T69718: Particles: 'render as' collection does not render/display instances inside that collection: Nodes & Physics.

Looks like instances (in the instance collection) are not shown (whereas "regular" objects are).
Actually their empties are drawn in the viewport, but their meshes are not.

Tue, Sep 10, 11:19 PM · Nodes & Physics, BF Blender
Philipp Oeser (lichtwerk) closed T69702: Crash when using particles rendered as whole collection as Resolved by committing rBa13b1b18def0: Fix T69702: crash using particles rendered as whole collection.
Tue, Sep 10, 3:43 PM · Nodes & Physics, BF Blender
Philipp Oeser (lichtwerk) added a revision to T69702: Crash when using particles rendered as whole collection: D5741: Fix T69702: crash using particles rendered as whole collection.
Tue, Sep 10, 2:32 PM · Nodes & Physics, BF Blender
Philipp Oeser (lichtwerk) added a project to T69702: Crash when using particles rendered as whole collection: Nodes & Physics.

Can confirm, 2.79 also crashed here...

Tue, Sep 10, 2:31 PM · Nodes & Physics, BF Blender
Philipp Oeser (lichtwerk) closed T69432: Hair particle editmode: hiding not working as Resolved by committing rBb2b52c6c9190: Fix T69432: Hair particle editmode: hiding not working.
Tue, Sep 10, 1:18 PM · Nodes & Physics, BF Blender
Philipp Oeser (lichtwerk) added a revision to T69432: Hair particle editmode: hiding not working: D5739: Fix T69432: Hair particle editmode: hiding not working.
Tue, Sep 10, 12:50 PM · Nodes & Physics, BF Blender
Philipp Oeser (lichtwerk) added a project to T69680: Unable to select hair keys in Particle Edit mode after some time of work: Nodes & Physics.

Can confirm on first sight, checking...

Tue, Sep 10, 10:52 AM · Nodes & Physics, BF Blender

Mon, Sep 9

Dalai Felinto (dfelinto) removed a project from T69488: Hair particles: hair particle rekey disolves the hair, then crashes Blender: BF Blender: Regressions.
Mon, Sep 9, 9:26 PM · Nodes & Physics, BF Blender
Dalai Felinto (dfelinto) removed a project from T69487: Hair particles: cannot delete hair particles in particle edit mode until you comb it: BF Blender: Regressions.
Mon, Sep 9, 9:26 PM · Nodes & Physics, BF Blender
Dalai Felinto (dfelinto) removed a project from T69452: Hair particles: 'Use modifier Stack' option removes all hair if particles have been added or removed in particle editmode: BF Blender: Regressions.
Mon, Sep 9, 9:26 PM · Nodes & Physics, BF Blender
Dalai Felinto (dfelinto) removed a project from T69432: Hair particle editmode: hiding not working: BF Blender: Regressions.
Mon, Sep 9, 9:25 PM · Nodes & Physics, BF Blender
Dalai Felinto (dfelinto) removed a project from T69308: Unable to read back in external baked physics cache: BF Blender: Regressions.
Mon, Sep 9, 9:25 PM · BF Blender (2.81), Nodes & Physics
Dalai Felinto (dfelinto) removed a project from T69265: Hair Dynamics: not working with non-uniform scaling: BF Blender: Regressions.
Mon, Sep 9, 9:24 PM · Nodes & Physics, BF Blender
Dalai Felinto (dfelinto) removed a project from T65889: Hair Particles not updating in Viewport when using Textures to drive Hair Size: BF Blender: Regressions.
Mon, Sep 9, 9:22 PM · Nodes & Physics, Dependency Graph, BF Blender
Dalai Felinto (dfelinto) removed a project from T64843: Emitter (non-hair) Particle Edit mode: 2 Crashes: BF Blender: Regressions.
Mon, Sep 9, 9:21 PM · Nodes & Physics, BF Blender
Dalai Felinto (dfelinto) removed a project from T63225: Hair Dynamics (no collision): exploding...: BF Blender: Regressions.
Mon, Sep 9, 9:20 PM · Nodes & Physics, BF Blender
Dalai Felinto (dfelinto) removed a project from T62563: Hair Dynamics: cannot generate a valid particle cache: BF Blender: Regressions.
Mon, Sep 9, 9:20 PM · Nodes & Physics, BF Blender
Dalai Felinto (dfelinto) removed a project from T59583: Hair Dynamics: entering particle edit mode with baked cache crashes blender: BF Blender: Regressions.
Mon, Sep 9, 9:19 PM · Nodes & Physics, BF Blender
Philipp Oeser (lichtwerk) added a comment to T69659: Add Hair Tool: with 'interpolation' and 'b-spline' enabled, added hair gets shorter and shorter.

Can confirm this. (was not the case in 2.79)

Mon, Sep 9, 3:43 PM · Nodes & Physics, BF Blender
Philipp Oeser (lichtwerk) removed a project from T69659: Add Hair Tool: with 'interpolation' and 'b-spline' enabled, added hair gets shorter and shorter: BF Blender: Regressions.
Mon, Sep 9, 3:42 PM · Nodes & Physics, BF Blender
Philipp Oeser (lichtwerk) added projects to T69659: Add Hair Tool: with 'interpolation' and 'b-spline' enabled, added hair gets shorter and shorter: Nodes & Physics, BF Blender: Regressions.

Can confirm this. (was not the case in 2.79)

Mon, Sep 9, 3:40 PM · Nodes & Physics, BF Blender

Fri, Sep 6

Philipp Oeser (lichtwerk) updated subscribers of T69308: Unable to read back in external baked physics cache.

@Sybren A. Stüvel (sybren): maybe you could check on this?

Fri, Sep 6, 12:39 PM · BF Blender (2.81), Nodes & Physics
Philipp Oeser (lichtwerk) edited projects for T69308: Unable to read back in external baked physics cache, added: BF Blender (2.81); removed BF Blender.
Fri, Sep 6, 11:55 AM · BF Blender (2.81), Nodes & Physics
Philipp Oeser (lichtwerk) added a project to T69308: Unable to read back in external baked physics cache: BF Blender: Regressions.
Fri, Sep 6, 9:29 AM · BF Blender (2.81), Nodes & Physics

Thu, Sep 5

Philipp Oeser (lichtwerk) added a comment to T69265: Hair Dynamics: not working with non-uniform scaling.

I hear you :)
Will continue looking at it (as time permits), I also think we should at least iron out the worst bugs 2.8 has compared to 2.79...
[ squashed one yesterday :) rBe52ad1835a6a ]

Thu, Sep 5, 3:05 PM · Nodes & Physics, BF Blender

Wed, Sep 4

Philipp Oeser (lichtwerk) closed T59742: Hair instability with collision as Resolved by committing rBe52ad1835a6a: Fix hair collision instability with 'Quality Steps' > 1.
Wed, Sep 4, 9:10 PM · BF Blender: Regressions, Nodes & Physics, BF Blender
Philipp Oeser (lichtwerk) closed T65038: Hair Dynamics: Hair quality steps more than 1 results in increased collision reaction [like a multiplier] as Resolved by committing rBe52ad1835a6a: Fix hair collision instability with 'Quality Steps' > 1.
Wed, Sep 4, 9:10 PM · BF Blender: Regressions, Nodes & Physics, BF Blender
Philipp Oeser (lichtwerk) added a comment to T64843: Emitter (non-hair) Particle Edit mode: 2 Crashes.

(1) already asserts earlier now:
BLI_assert failed: /blender/draw/intern/draw_cache_impl_particles.c:1519, particle_batch_cache_ensure_edit_pos_and_seg(), at '!"Hairs are not in edit mode!"'
(Just dropping this here because I have seen in reports elsewhere - hopefully this will make it easier to track down the issue...)

Wed, Sep 4, 8:43 PM · Nodes & Physics, BF Blender
Philipp Oeser (lichtwerk) added a project to T62563: Hair Dynamics: cannot generate a valid particle cache: BF Blender: Regressions.
Wed, Sep 4, 8:22 PM · Nodes & Physics, BF Blender
Philipp Oeser (lichtwerk) added projects to T59583: Hair Dynamics: entering particle edit mode with baked cache crashes blender: Nodes & Physics, BF Blender: Regressions.
Wed, Sep 4, 8:20 PM · Nodes & Physics, BF Blender
Philipp Oeser (lichtwerk) added a revision to T59742: Hair instability with collision: D5681: Fix hair collision instability with 'Quality Steps' > 1.
Wed, Sep 4, 7:36 PM · BF Blender: Regressions, Nodes & Physics, BF Blender
Philipp Oeser (lichtwerk) added a revision to T65038: Hair Dynamics: Hair quality steps more than 1 results in increased collision reaction [like a multiplier]: D5681: Fix hair collision instability with 'Quality Steps' > 1.
Wed, Sep 4, 7:36 PM · BF Blender: Regressions, Nodes & Physics, BF Blender
Garry R. Osgood (grosgood) added a comment to T69265: Hair Dynamics: not working with non-uniform scaling.

Yes. Sorry about that - the video was a fast load before I was off to my office and I probably screwed it up somehow. It doesn't play here either. Can fix it after I get back to my studio tonight (four hours from now, five allowing for domestic fiddle-faddle...)

Wed, Sep 4, 5:36 PM · Nodes & Physics, BF Blender
Philipp Oeser (lichtwerk) added projects to T63225: Hair Dynamics (no collision): exploding...: Nodes & Physics, BF Blender: Regressions.
Wed, Sep 4, 5:31 PM · Nodes & Physics, BF Blender
Juan Gea (juang3d) updated subscribers of T59742: Hair instability with collision.

I will check T65038.

Wed, Sep 4, 4:09 PM · BF Blender: Regressions, Nodes & Physics, BF Blender
Philipp Oeser (lichtwerk) merged T68737: Hair fails in Windows 10 and linux Ubuntu into T68681: Hair Dynamics: simulation doesn't work depending on smooth/flat shaded surfaces (and nvidia gpus?).
Wed, Sep 4, 3:33 PM · GPU / Viewport, Nodes & Physics, BF Blender