Assertion failed on expression: 'ps->array_size()'

[lfarkas73]

Describe the bug

I get two errors when I exit play mode.
I saw this problem has been fixed earlier, but it reoccur again in the latest version.

Assertion failed on expression: 'ps->array_size()'
UnityEngine.StackTraceUtility:ExtractStackTrace ()
Coffee.UIExtensions.UIParticleRenderer:UpdateMesh (UnityEngine.Camera) (at ./Library/PackageCache/com.coffee.ui-particle@447996ce0f/Scripts/UIParticleRenderer.cs:330)
Coffee.UIExtensions.UIParticle:UpdateRenderers () (at ./Library/PackageCache/com.coffee.ui-particle@447996ce0f/Scripts/UIParticle.cs:503)
Coffee.UIExtensions.UIParticleUpdater:Refresh () (at ./Library/PackageCache/com.coffee.ui-particle@447996ce0f/Scripts/UIParticleUpdater.cs:80)
UnityEngine.UI.ScrollRect:LateUpdate ()

Mesh '[UIParticleRenderer] Combine Instance Mesh': abnormal mesh bounds - most likely it has some invalid vertices (+/-inifinity or NANs) due to errors exporting.
Mesh bounds min=(0.00, 0.00, 0.00), max=(16001069492125579151405399003889664.00, 79316175099297370989568178471829504.00, 308585124126850166435263369183232.00). Please make sure the mesh is exported without any errors.
UnityEngine.StackTraceUtility:ExtractStackTrace ()
Coffee.UIExtensions.UIParticleRenderer:UpdateMesh (UnityEngine.Camera) (at ./Library/PackageCache/com.coffee.ui-particle@447996ce0f/Scripts/UIParticleRenderer.cs:330)
Coffee.UIExtensions.UIParticle:UpdateRenderers () (at ./Library/PackageCache/com.coffee.ui-particle@447996ce0f/Scripts/UIParticle.cs:503)
Coffee.UIExtensions.UIParticleUpdater:Refresh () (at ./Library/PackageCache/com.coffee.ui-particle@447996ce0f/Scripts/UIParticleUpdater.cs:80)
UnityEngine.UI.ScrollRect:LateUpdate ()

To Reproduce

1. Create and open new empty default 3D project
2. Import latest GIT package
3. Import UIParticle_Demo
4. Press play in the editor.
5. Exit play mode.
6. See error.

Expected behavior

No errors in the console upon exiting play mode.

Environment (please complete the following)

• Package version 4.2.2
• Platform: Editor(Windows), IOS platform generates the same error
• Unity version: 2022.3.7f1
• Project options: Default project settings with built-in pipeline

[mob-sakai]

The issue is not reproduced on my environment...

Environment

• Package version 4.2.2 (latest)
• Platform: Editor(Windows 10)
• Unity version: 2022.3.7f1
• Project options: Default, built-in pipeline

I would like to know more about this issue.

[lfarkas73]

Hello, I played a bit with this yesterday and found one interesting "solution". I kept only one particle system in the project for this test. 1. play it in Editor 2. stop project 3. errors appear However, if I do the following the error disappear: 1. play it in Editor 2. select game object stores the particle system 3. deactivate it 4. activate it again 5. stop project 6. errors are no longer there It seems if I reinitiate the particle system in runtime it works fine without errors. Alternatively, if I switch off the Emission in design time, start the project and switch on the Emission in Runtime the error is not appear. Doing some more checks today. Regards, Lajos mob-sakai ***@***.***> ezt írta (időpont: 2023. nov. 8., Sze, 3:55):

…

The issue is not reproduced on my environment... *Environment* - Package version 4.2.2 (latest) - Platform: Editor(Windows 10) - Unity version: 2022.3.7f1 - Project options: Default, built-in pipeline I would like to know more about this issue. — Reply to this email directly, view it on GitHub <#278 (comment)>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/ATXY2Y2VT3IURV5CCNZR2I3YDLYBBAVCNFSM6AAAAAA674IUBKVHI2DSMVQWIX3LMV43OSLTON2WKQ3PNVWWK3TUHMYTQMBQHEZDSMRQG4> . You are receiving this because you authored the thread.Message ID: ***@***.***>

[raveneer]

I also have same problems.
while play, it is ok, but when end play, error happen.

[mitay-walle]

Bounds of mesh are 0.0.0, that cause this error, I've added this check:
if (!float.IsNaN(bounds.extends.x) && !float.IsInfinity(bounds.extends.x) && bounds.extends.x > 0)
before_renderer.BakeMesh()` and error disappeared

UPD: final working code was:

if (!float.IsNaN(x) && !float.IsInfinity(x) && x > 0)
{
s_CombineInstances[0].mesh.RecalculateBounds();
}
_renderer.BakeMesh(s_CombineInstances[0].mesh, bakeCamera, ParticleSystemBakeMeshOptions.BakeRotationAndScale);

[mob-sakai]

@mitay-walle
Thank you for your reporting! 👍

[github-actions]

🎉 This issue has been resolved in version 4.6.4 🎉

The release is available on GitHub release

Your semantic-release bot 📦🚀

[github-actions]

🎉 This issue has been resolved in version 4.6.4 🎉

The release is available on GitHub release

Your semantic-release bot 📦🚀

[mitay-walle]

@mob-sakai sorry for missleading.

I've done more tests and find out that in my case reason was in Noise module + prewarm.

No specific parameters, but module enabling itself.
only disabling noise or prewarm helps.

Error appear when i restart scene with existing UIParticle and particleSystem emission / noise modules enabled. Important: particle shouldn't be selected when restarting scene

[mitay-walle]

BugReport.zip