0008408: Bulletsim fails to display any mesh object in Grid mode

Notes
(0033480) UbitUmarov (administrator) 2018-11-14 03:16	just uploaded a mesh known to be good and had no issues rez on a bullet region. your mesh may be defective in a way bullet does not detect but ubode does please check console for ubode errors when you rez that mesh using ubode.

(0033481) contributor (reporter) 2018-11-14 03:41	I have done two different experiments under Bulletsim. One is to upload a mesh object into Standalone region and the second experiment is to upload the same mesh object into Robust mode. The first experiment loads correctly any mesh, I have tested 50 mesh objects and they uploaded and rezed very well. While under Robust mode, all of them failed to rez. So it is not any question of a particular object, but it concerns all objects. Under ubode the above issue produced no errors either in Standalone or Robust mode.

(0033482) UbitUmarov (administrator) 2018-11-14 03:57	have to ask if you are changing the Meshmerizer when you change the physics engines. As you know bullet and ubode use different ones.

(0033483) contributor (reporter) 2018-11-14 04:12	I used the standard Meshmerizer with Bulletsim. My error report is about Bulletsim in Robust mode only. I have been using Opensim for 4 years and I adapt to all updates. When I tried to load my existing oars into the newest standalone version, no problem was noticed. But when I tried to load the same oars into Robust mode a lot of red lines appeared and non of mesh objects were loaded. I again notify that it is about Bulletsim under Robust mode. The standlone mode works ok under Bulletsim with my existing oars.

(0033484) UbitUmarov (administrator) 2018-11-14 06:11	the standalone/robust is odd any errors about assets upload on console? if so check all the configuration of assets service, both on robust and regions ini files.

(0033485) contributor (reporter) 2018-11-14 08:01	I will keep you informed with more details to help you solve this peculiar problem.

(0033486) contributor (reporter) 2018-11-14 08:51	In continuation of our discussion, I hereby list the series of steps needed to reproduce the error messages: Step 1. Restart the simulator (version: OpenSim 0.9.1.0 Snail Dev) in Robust mode Step 2. Create a simple 1-prim cube. Drop it on the ground. Step 3. (Via firestorm Release x64 5.1.7) save the cube prim as Collada (No textures needed on it) Step 4. Upload the just saved cube mesh object. It uploads ok without errors at this stage. Step 5. Then ,try to rezz the uploaded 1-prim object on the ground and read the red messages at the console. I hereby copy-paste the produced error messages just after rezzing. The object never appears visible but it is included in the number of prims of the region, increasing their number by 1. I hope this detailed procedure will help. 18:31:26 - [SCENE]: caught exception meshing object 5aeb3dd5-493f-4e11-9357-ea82614bf8dc. Object set to phantom. e=System.NullReferenceException: Object reference not set to an instance of an object. at OpenSim.Region.PhysicsModule.BulletS.BSPrimLinkable.RemoveDependencies() in c:\opensim-latest\OpenSim\Region\PhysicsModules\BulletS\BSPrimLinkable.cs:line 176 at OpenSim.Region.PhysicsModule.BulletS.BSPrim.<CreateGeomAndObject>b__41(BulletBody pBody, BulletShape pShape) in c:\opensim-latest\OpenSim\Region\PhysicsModules\BulletS\BSPrim.cs:line 1619 at OpenSim.Region.PhysicsModule.BulletS.BSShapeCollection.DereferenceExistingShape(BSPhysObject prim, PhysicalDestructionCallback shapeCallback) in c:\opensim-latest\OpenSim\Region\PhysicsModules\BulletS\BSShapeCollection.cs:line 112 at OpenSim.Region.PhysicsModule.BulletS.BSShapeCollection.CreateGeomMeshOrHull(BSPhysObject prim, PhysicalDestructionCallback shapeCallback) in c:\opensim-latest\OpenSim\Region\PhysicsModules\BulletS\BSShapeCollection.cs:line 309 at OpenSim.Region.PhysicsModule.BulletS.BSShapeCollection.CreateGeom(Boolean forceRebuild, BSPhysObject prim, PhysicalDestructionCallback shapeCallback) in c:\opensim-latest\OpenSim\Region\PhysicsModules\BulletS\BSShapeCollection.cs:line 227 at OpenSim.Region.PhysicsModule.BulletS.BSShapeCollection.GetBodyAndShape(Boolean forceRebuild, BulletWorld sim, BSPhysObject prim, PhysicalDestructionCallback bodyCallback) in c:\opensim-latest\OpenSim\Region\PhysicsModules\BulletS\BSShapeCollection.cs:line 86 at OpenSim.Region.PhysicsModule.BulletS.BSPrim.CreateGeomAndObject(Boolean forceRebuild) in c:\opensim-latest\OpenSim\Region\PhysicsModules\BulletS\BSPrim.cs:line 1613 at OpenSim.Region.PhysicsModule.BulletS.BSPrim.<.ctor>b__0() in c:\opensim-latest\OpenSim\Region\PhysicsModules\BulletS\BSPrim.cs:line 107 at OpenSim.Region.PhysicsModule.BulletS.BSScene.TaintedObject(String pOriginator, String pIdent, TaintCallback pCallback) in c:\opensim-latest\OpenSim\Region\PhysicsModules\BulletS\BSScene.cs:line 1244 at OpenSim.Region.PhysicsModule.BulletS.BSScene.TaintedObject(UInt32 pOriginator, String pIdent, TaintCallback pCallback) in c:\opensim-latest\OpenSim\Region\PhysicsModules\BulletS\BSScene.cs:line 1233 at OpenSim.Region.PhysicsModule.BulletS.BSPrim..ctor(UInt32 localID, String primName, BSScene parent_scene, Vector3 pos, Vector3 size, Quaternion rotation, PrimitiveBaseShape pbs, Boolean pisPhysical) in c:\opensim-latest\OpenSim\Region\PhysicsModules\BulletS\BSPrim.cs:line 102 at OpenSim.Region.PhysicsModule.BulletS.BSPrimDisplaced..ctor(UInt32 localID, String primName, BSScene parent_scene, Vector3 pos, Vector3 size, Quaternion rotation, PrimitiveBaseShape pbs, Boolean pisPhysical) in c:\opensim-latest\OpenSim\Region\PhysicsModules\BulletS\BSPrimDisplaced.cs:line 60 at OpenSim.Region.PhysicsModule.BulletS.BSPrimLinkable..ctor(UInt32 localID, String primName, BSScene parent_scene, Vector3 pos, Vector3 size, Quaternion rotation, PrimitiveBaseShape pbs, Boolean pisPhysical) in c:\opensim-latest\OpenSim\Region\PhysicsModules\BulletS\BSPrimLinkable.cs:line 56 at OpenSim.Region.PhysicsModule.BulletS.BSScene.AddPrimShape(String primName, PrimitiveBaseShape pbs, Vector3 position, Vector3 size, Quaternion rotation, Boolean isPhysical, UInt32 localID) in c:\opensim-latest\OpenSim\Region\PhysicsModules\BulletS\BSScene.cs:line 618 at OpenSim.Region.PhysicsModules.SharedBase.PhysicsScene.AddPrimShape(String primName, PrimitiveBaseShape pbs, Vector3 position, Vector3 size, Quaternion rotation, Boolean isPhysical, Boolean isPhantom, Byte shapetype, UInt32 localid) in c:\opensim-latest\OpenSim\Region\PhysicsModules\SharedBase\PhysicsScene.cs:line 224 at OpenSim.Region.Framework.Scenes.SceneObjectPart.AddToPhysics(Boolean isPhysical, Boolean isPhantom, Boolean building, Boolean applyDynamics) in c:\opensim-latest\OpenSim\Region\Framework\Scenes\SceneObjectPart.cs:line 4949

(0033487) UbitUmarov (administrator) 2018-11-14 08:54	what upload options other then default, specially on physics tab ?

(0033488) contributor (reporter) 2018-11-14 09:03	Physics: Lowest and Level of Detail: Load from file Triangles 108 Vertices 96 Use LoD above Triangles 108 Vertices 96 Use LoD above Triangles 108 Vertices 96 Use LoD above Triangles 108 Vertices 96

(0033489) UbitUmarov (administrator) 2018-11-14 09:09	odd choices but did it and all fine. are you on recent master?

(0033490) BillBlight (developer) 2018-11-14 09:09	I have to ask, what are you "adapting" ? .9x is a bit different than .8x adaptations that might have worked in it, could very well break .9x.

(0033491) UbitUmarov (administrator) 2018-11-14 09:11	if you have UseSeparatePhysicsThread = true set it to false and test plz

(0033492) contributor (reporter) 2018-11-14 09:20	/////if you have UseSeparatePhysicsThread = true ///// /////set it to false and test plz Yes, I checked the UseSeparatePhysicsThread and it was found to be false all the time. Then I uploaded the mesh cube with the default options. The problem remained.

(0033508) contributor (reporter) 2018-11-15 13:02	Important News It was found that with FileCacheEnabled = false (FlotsamCache.ini) all the oars loaded successfully and any mesh object they contained appeared. This bypasses the rez problem of mesh objects but is a temporary only solution. because the assetcache is required to be enabled. I hope this will help.

(0033509) UbitUmarov (administrator) 2018-11-15 14:31	several tests and no repo here :( this seems a timming issue not fully covered by bullet. i did add, on master, avoidance for that null reference on you logs. hopefully that will help bullet exec to be on right tracks (not seening objects guess is just a side effect of bullet blown up)

(0033511) contributor (reporter) 2018-11-15 23:36	Your latest corrections solved the problem of mesh objects under bulletsim. Thank you Ubit, wholeheartedly.

Issue History
Date Modified	Username	Field	Change
2018-11-13 22:21	contributor	New Issue
2018-11-13 22:31	BillBlight	Relationship added	related to 0008306
2018-11-14 03:16	UbitUmarov	Note Added: 0033480
2018-11-14 03:41	contributor	Note Added: 0033481
2018-11-14 03:57	UbitUmarov	Note Added: 0033482
2018-11-14 04:12	contributor	Note Added: 0033483
2018-11-14 06:11	UbitUmarov	Note Added: 0033484
2018-11-14 08:01	contributor	Note Added: 0033485
2018-11-14 08:51	contributor	Note Added: 0033486
2018-11-14 08:54	UbitUmarov	Note Added: 0033487
2018-11-14 09:03	contributor	Note Added: 0033488
2018-11-14 09:09	UbitUmarov	Note Added: 0033489
2018-11-14 09:09	BillBlight	Note Added: 0033490
2018-11-14 09:11	UbitUmarov	Note Added: 0033491
2018-11-14 09:20	contributor	Note Added: 0033492
2018-11-15 13:02	contributor	Note Added: 0033508
2018-11-15 14:31	UbitUmarov	Note Added: 0033509
2018-11-15 23:36	contributor	Note Added: 0033511