VICODynamics: a particle based Soft-Body physics Plugin

Community Showcase Game Development
776

This is mainly due to the current collision algorithm which is decent, but not ideal as you can see. It can miss higher speed object.
To improve things, try increasing the collision radius of the particles slightly. This will fill in gaps between them. Also, in Project Settings -> VICO Dynamics, try increasing the substep count a bit and the constraint iteration count a bit. Be aware that performance will be affected and going too high can result in strange behaviour.

Testing the soft-body stuff was too much fun, I found myself just messing around with them for hours :smiley:

777

Thank you. will try it out.
I do hope epic gives you a better deal. Like similar to the Voxel Plugin, there is a free and pro version. It might be good that epic incorporates the current features or some added features in the free version supported by epic and you make a PRO version as well (which I hope includes the current people who bought it). I do hope you get more devs to work with. Your plugin is easy to setup for people like me who have little bp and physics knowledge. Did you ever happen to post the job in the unreal slackers looking for talent portion?

778

if I buy the plugin today.
do i have to pay again for future versions of UE4

779

Thatā€™s definitely one route.

Not yet, but thank you for the reminder :slight_smile:

780

Nope, future UE4 versions are included

781

Hi, could I use this on mobile like android? I just want a sphere with the soft body collision and simulate a blob or slime when I jump or move. Thank you

782

Hi, requested access to Girhub repo in July & sent you my invoice - wondering when I might be able to get in there? I just emailed you again.

783

Hello,
I replied to you on July 13th with all of the details, you are all set. (I can forward you that email if it didnā€™t go through) Replying on here as well, just in case.
I replied to your new email just now, let me know if that went through.

784

Yes, but I will need to send you the Android binary. Iā€™m still testing them, though results are looking good so far.

785

Sorry, my bad, user error. Looking forward to testing out the new features!

786

Hi ,

I was looking to get access to github, I had sent you the email, receipt, & github username (Abatron) yesterday. Anyways, just following up incase it went to spam or something. Great job on the plugin overall. In my email, I explained, I wanted to refactor the simulation to use the end attachment as the coordinate space versus worldspace. In my scenario, a player is on a moving vehicle and so is the end attachment. I want to remove the influence the moving vehicle has on the simulation. If you have any insights on doing that, that would be helpful.

Cheers and Thanks!

787

You should be all setup. Sorry for the delay in replying, been a busy month :slight_smile:

788

Hi ,

I was looking to get access to github. I had requested access to Girhub repo on Dec 14, but donā€™t have any news from you. My github user name is turok. Anyways, just following up incase it went to spam or something.

Thanks!

789

It did indeed end up in the spam, glad you followed up here. You should be all set now.

790

Hi, I just bought your plugin for use in Unreal 4.19. I am getting very weird behaviour when detaching ropes. It seems like the detached particles stop participating in the simulation of the particle chain:

[video]https://streamable.com/c8undx[/video]

791

Hello, very sorry for not replying sooner. Did not get a post notification for some reason. Next time, feel free to email me as well at vdue4@.com

That is a strange one, but it may be a 4.19 bug only as I cannot replicate it in the latest version. Are you able to upgrade to newer engine versions? If not, could you try calling Detach with a regular VDRope Component? I wonder if it is specific to the Dynamic Rope.

792

Hi, unfortunately I cant use the most recent version of UE4 since I also want to use Nvidia Flex. I found a workaround for my use case by just cutting the rope at the first segment :slight_smile: Unfortunately I canā€™t get it to work with PhysX Collisions. As soon as I turn those on in the Vico project settings I get access violation errors like this:


[2021.02.21-07.58.35:735][544]LogWindows: Error: === Critical error: ===
[2021.02.21-07.58.35:735][544]LogWindows: Error:
[2021.02.21-07.58.35:735][544]LogWindows: Error: Unhandled Exception: EXCEPTION_ACCESS_VIOLATION reading address 0x00000100
[2021.02.21-07.58.35:735][544]LogWindows: Error:
[2021.02.21-07.58.35:735][544]LogWindows: Error: [Callstack] 0x00000000E9576BC0 UE4Editor-Engine.dll!FBodyInstance::GetPxRigidActor_AssumesLocked() [m:\git\unrealengine\0lento-pr-flex-4.19.2\engine\source\runtime\engine\classes\physicsengine\bodyinstance.h:627]
[2021.02.21-07.58.35:735][544]LogWindows: Error: [Callstack] 0x00000000D7E452B6 UE4Editor-VICODynamicsPlugin.dll!FVDCollisionQueryInterface::OverlapSphere() [m:\git\unrealengine\0lento-pr-flex-4.19.2\engine\plugins\vicodynamicsplugin\source\vicodynamicsplugin\private\vdcollisioninterface.cpp:129]
[2021.02.21-07.58.35:735][544]LogWindows: Error: [Callstack] 0x00000000D7DF9329 VICODynamics_Profile.dll!UnknownFunction ]
[2021.02.21-07.58.35:735][544]LogWindows: Error: [Callstack] 0x00000000D7DF9DC6 VICODynamics_Profile.dll!UnknownFunction ]
[2021.02.21-07.58.35:735][544]LogWindows: Error: [Callstack] 0x00000000D7DFA03F VICODynamics_Profile.dll!UnknownFunction ]
[2021.02.21-07.58.35:735][544]LogWindows: Error: [Callstack] 0x00000000D7DFA41D VICODynamics_Profile.dll!UnknownFunction ]
[2021.02.21-07.58.35:735][544]LogWindows: Error: [Callstack] 0x00000000D7E5BFED UE4Editor-VICODynamicsPlugin.dll!UVDSimulation::Tick() [m:\git\unrealengine\0lento-pr-flex-4.19.2\engine\plugins\vicodynamicsplugin\source\vicodynamicsplugin\private\vdsimulation.cpp:289]
[2021.02.21-07.58.35:735][544]LogWindows: Error: [Callstack] 0x00000000EA74CFCB UE4Editor-Engine.dll!FTickFunctionTask::DoTask() [m:\git\unrealengine\0lento-pr-flex-4.19.2\engine\source\runtime\engine\private	icktaskmanager.cpp:273]
[2021.02.21-07.58.35:735][544]LogWindows: Error: [Callstack] 0x00000000EA7526A3 UE4Editor-Engine.dll!TGraphTask<FTickFunctionTask>::ExecuteTask() [m:\git\unrealengine\0lento-pr-flex-4.19.2\engine\source\runtime\core\public\async	askgraphinterfaces.h:829]
[2021.02.21-07.58.35:735][544]LogWindows: Error: [Callstack] 0x00000000FCF8B713 UE4Editor-Core.dll!FNamedTaskThread::ProcessTasksNamedThread() [m:\git\unrealengine\0lento-pr-flex-4.19.2\engine\source\runtime\core\private\async	askgraph.cpp:665]
[2021.02.21-07.58.35:735][544]LogWindows: Error: [Callstack] 0x00000000FCF8BD3A UE4Editor-Core.dll!FNamedTaskThread::ProcessTasksUntilQuit() [m:\git\unrealengine\0lento-pr-flex-4.19.2\engine\source\runtime\core\private\async	askgraph.cpp:574]
[2021.02.21-07.58.35:735][544]LogWindows: Error: [Callstack] 0x00000000FCFAECFE UE4Editor-Core.dll!FTaskGraphImplementation::WaitUntilTasksComplete() [m:\git\unrealengine\0lento-pr-flex-4.19.2\engine\source\runtime\core\private\async	askgraph.cpp:1355]
[2021.02.21-07.58.35:735][544]LogWindows: Error: [Callstack] 0x00000000EA773681 UE4Editor-Engine.dll!FTickTaskSequencer::ReleaseTickGroup() [m:\git\unrealengine\0lento-pr-flex-4.19.2\engine\source\runtime\engine\private	icktaskmanager.cpp:542]
[2021.02.21-07.58.35:735][544]LogWindows: Error: [Callstack] 0x00000000EA7791A2 UE4Editor-Engine.dll!FTickTaskManager::RunTickGroup() [m:\git\unrealengine\0lento-pr-flex-4.19.2\engine\source\runtime\engine\private	icktaskmanager.cpp:1449]
[2021.02.21-07.58.35:735][544]LogWindows: Error: [Callstack] 0x00000000E9FCCB74 UE4Editor-Engine.dll!UWorld::RunTickGroup() [m:\git\unrealengine\0lento-pr-flex-4.19.2\engine\source\runtime\engine\private\leveltick.cpp:776]
[2021.02.21-07.58.35:735][544]LogWindows: Error: [Callstack] 0x00000000E9FD8C95 UE4Editor-Engine.dll!UWorld::Tick() [m:\git\unrealengine\0lento-pr-flex-4.19.2\engine\source\runtime\engine\private\leveltick.cpp:1525]
[2021.02.21-07.58.35:735][544]LogWindows: Error: [Callstack] 0x00000000E817D821 UE4Editor-UnrealEd.dll!UEditorEngine::Tick() [m:\git\unrealengine\0lento-pr-flex-4.19.2\engine\source\editor\unrealed\private\editorengine.cpp:1702]
[2021.02.21-07.58.35:735][544]LogWindows: Error: [Callstack] 0x00000000E8A19936 UE4Editor-UnrealEd.dll!UUnrealEdEngine::Tick() [m:\git\unrealengine\0lento-pr-flex-4.19.2\engine\source\editor\unrealed\private\unrealedengine.cpp:401]
[2021.02.21-07.58.35:735][544]LogWindows: Error: [Callstack] 0x000000007B2A5EAC UE4Editor.exe!FEngineLoop::Tick() [m:\git\unrealengine\0lento-pr-flex-4.19.2\engine\source\runtime\launch\private\launchengineloop.cpp:3345]
[2021.02.21-07.58.35:735][544]LogWindows: Error: [Callstack] 0x000000007B2B6BD0 UE4Editor.exe!GuardedMain() [m:\git\unrealengine\0lento-pr-flex-4.19.2\engine\source\runtime\launch\private\launch.cpp:166]
[2021.02.21-07.58.35:735][544]LogWindows: Error: [Callstack] 0x000000007B2B6C4A UE4Editor.exe!GuardedMainWrapper() [m:\git\unrealengine\0lento-pr-flex-4.19.2\engine\source\runtime\launch\private\windows\launchwindows.cpp:144]
[2021.02.21-07.58.35:735][544]LogWindows: Error: [Callstack] 0x000000007B2C4187 UE4Editor.exe!WinMain() [m:\git\unrealengine\0lento-pr-flex-4.19.2\engine\source\runtime\launch\private\windows\launchwindows.cpp:223]
[2021.02.21-07.58.35:735][544]LogWindows: Error: [Callstack] 0x000000007B2C5B97 UE4Editor.exe!__scrt_common_main_seh() [f:\dd\vctools\crt\vcstartup\src\startup\exe_common.inl:253]
[2021.02.21-07.58.35:735][544]LogWindows: Error: [Callstack] 0x0000000072247034 .DLL!UnknownFunction ]
[2021.02.21-07.58.35:735][544]LogWindows: Error: [Callstack] 0x00000000723DD241 ntdll.dll!UnknownFunction ]
[2021.02.21-07.58.35:735][544]LogWindows: Error: [Callstack] 0x00000000723DD241 ntdll.dll!UnknownFunction ]
[2021.02.21-07.58.35:735][544]LogWindows: Error:
[2021.02.21-07.58.35:749][544]LogExit: Executing StaticShutdownAfterError
[2021.02.21-07.58.35:779][544]LogPhysics: Error: PHYSX: ( 0) eINVALID_OPERATION : PxScene::lockWrite() detected after a PxScene::lockRead(), lock upgrading is not supported, behaviour will be undefined.
[2021.02.21-07.58.35:780][544]LogPhysics: Error: PHYSX: (D:\Build\++UE4+Dev-AnimPhys+Engine\Sync\Engine\Source\ThirdParty\PhysX3\PhysX_3.4\Source\PhysX\src\NpScene.cpp 3026) eINVALID_OPERATION : PxScene::unlockWrite() called without matching call to PxScene::lockWrite(), behaviour will be undefined.
[2021.02.21-07.58.35:781][544]LogPhysics: Error: PHYSX: (D:\Build\++UE4+Dev-AnimPhys+Engine\Sync\Engine\Source\ThirdParty\PhysX3\PhysX_3.4\Source\PhysX\src\NpScene.cpp 223) eINVALID_OPERATION : PxScene::lockWrite() detected after a PxScene::lockRead(), lock upgrading is not supported, behaviour will be undefined.
[2021.02.21-07.58.35:781][544]LogPhysics: Error: PHYSX: (D:\Build\++UE4+Dev-AnimPhys+Engine\Sync\Engine\Source\ThirdParty\PhysX3\PhysX_3.4\Source\PhysX\src\NpScene.cpp 3026) eINVALID_OPERATION : PxScene::unlockWrite() called without matching call to PxScene::lockWrite(), behaviour will be undefined.
[2021.02.21-07.58.35:782][544]LogWindows: FPlatformMisc::RequestExit(1)
[2021.02.21-07.58.35:782][544]Log file closed, 02/21/21 08:58:35
793

Iā€™m afraid that crash looks a lot like a known one that was addressed in a later version. If youā€™d like, I can see if I can apply the fix to the version you are using.
Are you using the plugin from the Marketplace or the GitHub repo?

794

Wow, that would be super nice! I am using the marketplace version.

795

Can you grant me access to your github repo and dm me the url? My git account: r45k07n1k0w Ā· GitHub

I also just upraded to Engine Version 4.21 and can confirm that I still get that error with PhysX collisions enabled:


[2021.02.26-14.10.00:226][893]LogWindows: Error: [Callstack] 0x00007ff8c197dec0 UE4Editor-Engine.dll!FPhysicsInterface_PhysX::GetPxRigidActor_AssumesLocked() [m:\git\unrealengine\0lento-4.21-flex\engine\source\runtime\engine\private\physicsengine\physicsinterfacephysx.cpp:82]
[2021.02.26-14.10.00:226][893]LogWindows: Error: [Callstack] 0x00007ff896bf7991 UE4Editor-VICODynamicsPlugin.dll!FVDCollisionQueryInterface::OverlapSphere() [m:\git\unrealengine\0lento-4.21-flex\engine\plugins\vicodynamicsplugin\source\vicodynamicsplugin\private\vdcollisioninterface.cpp:146]
[2021.02.26-14.10.00:226][893]LogWindows: Error: [Callstack] 0x00007ff896ba9329 VICODynamics_Profile.dll!UnknownFunction ]
[2021.02.26-14.10.00:226][893]LogWindows: Error: [Callstack] 0x00007ff896ba9dc6 VICODynamics_Profile.dll!UnknownFunction ]
[2021.02.26-14.10.00:226][893]LogWindows: Error: [Callstack] 0x00007ff896baa03f VICODynamics_Profile.dll!UnknownFunction ]
[2021.02.26-14.10.00:226][893]LogWindows: Error: [Callstack] 0x00007ff896baa41d VICODynamics_Profile.dll!UnknownFunction ]
[2021.02.26-14.10.00:226][893]LogWindows: Error: [Callstack] 0x00007ff896c0fa8c UE4Editor-VICODynamicsPlugin.dll!UVDSimulation::Tick() [m:\git\unrealengine\0lento-4.21-flex\engine\plugins\vicodynamicsplugin\source\vicodynamicsplugin\private\vdsimulation.cpp:328]
[2021.02.26-14.10.00:226][893]LogWindows: Error: [Callstack] 0x00007ff8c1e07bac UE4Editor-Engine.dll!TGraphTask<FTickFunctionTask>::ExecuteTask() [m:\git\unrealengine\0lento-4.21-flex\engine\source\runtime\core\public\async	askgraphinterfaces.h:829]
[2021.02.26-14.10.00:226][893]LogWindows: Error: [Callstack] 0x00007ff8c394a068 UE4Editor-Core.dll!FNamedTaskThread::ProcessTasksNamedThread() [m:\git\unrealengine\0lento-4.21-flex\engine\source\runtime\core\private\async	askgraph.cpp:679]
[2021.02.26-14.10.00:226][893]LogWindows: Error: [Callstack] 0x00007ff8c394a526 UE4Editor-Core.dll!FNamedTaskThread::ProcessTasksUntilQuit() [m:\git\unrealengine\0lento-4.21-flex\engine\source\runtime\core\private\async	askgraph.cpp:575]
[2021.02.26-14.10.00:226][893]LogWindows: Error: [Callstack] 0x00007ff8c395df6e UE4Editor-Core.dll!FTaskGraphImplementation::WaitUntilTasksComplete() [m:\git\unrealengine\0lento-4.21-flex\engine\source\runtime\core\private\async	askgraph.cpp:1444]
[2021.02.26-14.10.00:226][893]LogWindows: Error: [Callstack] 0x00007ff8c1e5d788 UE4Editor-Engine.dll!FTickTaskSequencer::ReleaseTickGroup() [m:\git\unrealengine\0lento-4.21-flex\engine\source\runtime\engine\private	icktaskmanager.cpp:556]
[2021.02.26-14.10.00:226][893]LogWindows: Error: [Callstack] 0x00007ff8c1e6d672 UE4Editor-Engine.dll!FTickTaskManager::RunTickGroup() [m:\git\unrealengine\0lento-4.21-flex\engine\source\runtime\engine\private	icktaskmanager.cpp:1474]
[2021.02.26-14.10.00:226][893]LogWindows: Error: [Callstack] 0x00007ff8c156cac4 UE4Editor-Engine.dll!UWorld::RunTickGroup() [m:\git\unrealengine\0lento-4.21-flex\engine\source\runtime\engine\private\leveltick.cpp:789]
[2021.02.26-14.10.00:226][893]LogWindows: Error: [Callstack] 0x00007ff8c15798bf UE4Editor-Engine.dll!UWorld::Tick() [m:\git\unrealengine\0lento-4.21-flex\engine\source\runtime\engine\private\leveltick.cpp:1557]
[2021.02.26-14.10.00:226][893]LogWindows: Error: [Callstack] 0x00007ff8bea6a843 UE4Editor-UnrealEd.dll!UEditorEngine::Tick() [m:\git\unrealengine\0lento-4.21-flex\engine\source\editor\unrealed\private\editorengine.cpp:1735]
[2021.02.26-14.10.00:226][893]LogWindows: Error: [Callstack] 0x00007ff8bf3437a6 UE4Editor-UnrealEd.dll!UUnrealEdEngine::Tick() [m:\git\unrealengine\0lento-4.21-flex\engine\source\editor\unrealed\private\unrealedengine.cpp:403]
[2021.02.26-14.10.00:226][893]LogWindows: Error: [Callstack] 0x00007ff6334b61bc UE4Editor.exe!FEngineLoop::Tick() [m:\git\unrealengine\0lento-4.21-flex\engine\source\runtime\launch\private\launchengineloop.cpp:3705]
[2021.02.26-14.10.00:226][893]LogWindows: Error: [Callstack] 0x00007ff6334c4d60 UE4Editor.exe!GuardedMain() [m:\git\unrealengine\0lento-4.21-flex\engine\source\runtime\launch\private\launch.cpp:174]
[2021.02.26-14.10.00:226][893]LogWindows: Error: [Callstack] 0x00007ff6334c4dda UE4Editor.exe!GuardedMainWrapper() [m:\git\unrealengine\0lento-4.21-flex\engine\source\runtime\launch\private\windows\launchwindows.cpp:145]
[2021.02.26-14.10.00:226][893]LogWindows: Error: [Callstack] 0x00007ff6334d3b5a UE4Editor.exe!WinMain() [m:\git\unrealengine\0lento-4.21-flex\engine\source\runtime\launch\private\windows\launchwindows.cpp:276]
[2021.02.26-14.10.00:226][893]LogWindows: Error: [Callstack] 0x00007ff6334d5812 UE4Editor.exe!__scrt_common_main_seh() [d:\agent\_work\2\s\src\vctools\crt\vcstartup\src\startup\exe_common.inl:288]
[2021.02.26-14.10.00:226][893]LogWindows: Error: [Callstack] 0x00007ff94b647034 .DLL!UnknownFunction ]
[2021.02.26-14.10.00:226][893]LogWindows: Error: [Callstack] 0x00007ff94b77d241 ntdll.dll!UnknownFunction ]
[2021.02.26-14.10.00:226][893]LogWindows: Error:
[2021.02.26-14.10.00:242][893]LogExit: Executing StaticShutdownAfterError
[2021.02.26-14.10.00:265][893]LogPhysics: Error: PHYSX: ( 0) eINVALID_OPERATION : PxScene::lockWrite() detected after a PxScene::lockRead(), lock upgrading is not supported, behaviour will be undefined.
[2021.02.26-14.10.00:265][893]LogPhysics: Error: PHYSX: (D:\Build\++UE4\Sync\Engine\Source\ThirdParty\PhysX3\PhysX_3.4\Source\PhysX\src\NpScene.cpp 3049) eINVALID_OPERATION : PxScene::unlockWrite() called without matching call to PxScene::lockWrite(), behaviour will be undefined.
[2021.02.26-14.10.00:265][893]LogPhysics: Error: PHYSX: (D:\Build\++UE4\Sync\Engine\Source\ThirdParty\PhysX3\PhysX_3.4\Source\PhysX\src\NpScene.cpp 230) eINVALID_OPERATION : PxScene::lockWrite() detected after a PxScene::lockRead(), lock upgrading is not supported, behaviour will be undefined.
[2021.02.26-14.10.00:265][893]LogPhysics: Error: PHYSX: (D:\Build\++UE4\Sync\Engine\Source\ThirdParty\PhysX3\PhysX_3.4\Source\PhysX\src\NpScene.cpp 3049) eINVALID_OPERATION : PxScene::unlockWrite() called without matching call to PxScene::lockWrite(), behaviour will be undefined.