Soft Body ignores Goal on Lattice #26876

New Issue

Vox Lapin · 2011-04-11T19:00:38+02:00

Vox Lapin commented

2011-04-11 19:00:38 +02:00

%%%The attached Blend file has two cubes and two cube-like lattices. In all cases their four negative-X-facing verts/controlpoints are assigned to a vertex group. There is also a floor-like collider object.
The two objects labeled "Default Softbody Behavior" show the behavior after simply enabling Softbody.
The two objects labeled "goal vgroup Softbody Behavior" show the behavior after also setting the vgroup as the Soft Body Goal.
Animating with alt-A shows that softbody is not consistently applied to meshes and lattices, even with default settings, and that further, using a vgroup to control the soft body goal has no effect.
Unchecking "Soft Body Goal" on the two lattices shows no effect.
The behavior shows a loss of functionality from 2.49b - even opening this 2.5 file in 2.49b shows the older build is able to properly consider the goal.

Vista 64, found on 36033 64, confirmed on trunk/36102%%%

%%%The attached Blend file has two cubes and two cube-like lattices. In all cases their four negative-X-facing verts/controlpoints are assigned to a vertex group. There is also a floor-like collider object. The two objects labeled "Default Softbody Behavior" show the behavior after simply enabling Softbody. The two objects labeled "goal vgroup Softbody Behavior" show the behavior after also setting the vgroup as the Soft Body Goal. Animating with alt-A shows that softbody is not consistently applied to meshes and lattices, even with default settings, and that further, using a vgroup to control the soft body goal has no effect. Unchecking "Soft Body Goal" on the two lattices shows no effect. The behavior shows a loss of functionality from 2.49b - even opening this 2.5 file in 2.49b shows the older build is able to properly consider the goal. Vista 64, found on 36033 64, confirmed on trunk/36102%%%

Vox Lapin commented

2011-04-11 19:00:38 +02:00

Changed status to: 'Open'

Vox Lapin commented

2011-04-11 20:06:09 +02:00

%%%Also, found while investigating workarounds: The Mesh Deform modifier is available for Lattices, but the Bind button (required for functionality) is grayed out. If Mesh Deform cannot operate on Lattices, it should be removed from the Add Modifier menu?%%%

Ton Roosendaal commented

2011-04-12 13:42:12 +02:00

%%%We'll check this, but it would be appreciated if you confirm you tested the binaries from blender.org.
%%%

%%%We'll check this, but it would be appreciated if you confirm you tested the binaries from blender.org. %%%

Vox Lapin commented

2011-04-12 14:02:45 +02:00

%%%Sure Ton! I recreated the test scene from scratch with 2.56a win64 from the site. Same behavior. Attaching blend labeled 256a.%%%

Vox Lapin commented

2011-04-12 14:05:42 +02:00

%%%(or rather, trying and failing)%%%

Ton Roosendaal commented

2011-04-12 15:09:20 +02:00

%%%There's a release candidate for 2.57 on frontpage blender.org too.

Attach works if you first write text, then attach and save changes :)%%%

%%%There's a release candidate for 2.57 on frontpage blender.org too. Attach works if you first write text, then attach and save changes :)%%%

Vox Lapin commented

2011-04-12 15:50:02 +02:00

%%%The issue appears in 36033 64 from graphicall, 36102 32 hand-rolled, and BF 2.56a, but you need to see it in RC2-36007 specifically? You trollin'? >:)
Re-created from scratch with RC2-36007, same behavior, file uploaded. This time I used "load factory setttings" to preclude interference from my default BLEND.
E pur si muove!%%%

%%%The issue appears in 36033 64 from graphicall, 36102 32 hand-rolled, and BF 2.56a, but you need to see it in RC2-36007 *specifically*? You trollin'? >:) Re-created from scratch with RC2-36007, same behavior, file uploaded. This time I used "load factory setttings" to preclude interference from my default BLEND. E pur si muove!%%%

Ton Roosendaal commented

2011-04-12 16:09:38 +02:00

%%%Its not about recreating it in the RC2, it's about verifying the problem in that version. Only to ensure it is still a bug.
Using builds from graphical or own builds also can give false positives.%%%

%%%Its not about recreating it in the RC2, it's about verifying the problem in that version. Only to ensure it is still a bug. Using builds from graphical or own builds also can give false positives.%%%

Sergey Sharybin commented

2012-04-03 15:06:52 +02:00

%%%Can i ask for status of this report? Is it still an issue? And maybe Janne can give some feedback here?%%%

Arno Mayrhofer commented

2012-05-26 18:40:27 +02:00

%%%I just checked it with rev 47053 and the problem still exists. I will have a look and see if I can fix it.%%%

Arno Mayrhofer commented

2012-05-26 23:33:08 +02:00

%%%Can somebody comment whether it actually makes sense to look into this issue or will this module be redundant anyways after the bullet engine is introduced (GSOC12)?%%%

Arno Mayrhofer commented

2012-05-27 12:00:16 +02:00

%%%Okay that was easy to fix. Check attached patch and report back please.%%%

Sergey Sharybin commented

2012-05-27 15:34:40 +02:00

%%%Patch looked fine, commited at revision 47075.
Thanks for both report and patch! Closing report now :)%%%

%%%Patch looked fine, commited at revision 47075. Thanks for both report and patch! Closing report now :)%%%

Sergey Sharybin commented

2012-05-27 15:34:40 +02:00

Changed status from 'Open' to: 'Resolved'

Sergey Sharybin closed this issue

2012-05-27 15:34:40 +02:00

Moolah Nasreddin commented

2012-06-05 12:15:44 +02:00

%%%Thanks for the fix! :)
That was some of "my bugs"... I mean a report of mine (the same issue). So if it wasn't closed.... it can be removed now (and clean the list a bit).%%%

%%%Thanks for the fix! :) That was some of "my bugs"... I mean a report of mine (the same issue). So if it wasn't closed.... it can be removed now (and clean the list a bit).%%%

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Soft Body ignores Goal on Lattice #26876