3.3.5 Mesh bounds min=(nan, nan, nan), max=(nan, nan, nan)

[HFX-93]

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To Reproduce

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2. Click on '....'
3. Scroll down to '....'
4. See error

Expected behavior

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Screenshots

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Environment (please complete the following)

• Package version [e.g. 4.2.0, 3.3.14] 3.3.5
• Platform: [e.g. Editor(Windows/Mac), Standalone(Windows/Mac), iOS, Android, WebGL]
• Unity version: [e.g. 2020.3.4f1c1]
• Project options: [e.g. Mono/IL2CPP, .Net Standard 2.1/.Net 4.x, URP/HDRP, GraphicAPIs]

exception_type: Error
exception_message: Mesh '': abnormal mesh bounds - most likely it has some invalid vertices (+/-inifinity or NANs) due to errors exporting. Mesh bounds min=(nan, nan, nan), max=(nan, nan, nan). Please make sure the mesh is exported without any errors.
stack_trace: Coffee.UIExtensions.UIParticleUpdater:BakeMesh(UIParticle) Coffee.UIExtensions.UIParticleUpdater:Refresh(UIParticle) Coffee.UIExtensions.UIParticleUpdater:Refresh() UnityEngine.WillRenderCanvases:Invoke()

I have tried to fix this error in version 3.3.5. May I ask if this modification is correct？

Please add any other context about the issue here. It will help us resolve the issue.

• Error messages and crash dump
• Screenshots, gif animations and movie files
• Reproducible minimal project
  • The entire project (zipped Assets, Packages, ProjectSettings) is preferred over .unitypackage

[HFX-93]

@mob-sakai 1、The time span from version 3.3.5 to version 4.2.2 is too big, and many special effects in the project are not suitable for version 4.2.2, so I still have to use version 3.3.5 for the time being, but I still need to solve this error. Please check whether my handling method is correct. If not, could you please provide me with a solution?

2、This is the specific error message，About 100,000 errors are reported every day： exception_type: Error
exception_message: Mesh '': abnormal mesh bounds - most likely it has some invalid vertices (+/-inifinity or NANs) due to errors exporting. Mesh bounds min=(nan, nan, nan), max=(nan, nan, nan). Please make sure the mesh is exported without any errors.
stack_trace: Coffee.UIExtensions.UIParticleUpdater:BakeMesh(UIParticle) Coffee.UIExtensions.UIParticleUpdater:Refresh(UIParticle) Coffee.UIExtensions.UIParticleUpdater:Refresh() UnityEngine.WillRenderCanvases:Invoke()

[mob-sakai]

Hi @HFX-93, thank you for your reporting.

• Similar issues: https://github.com/mob-sakai/ParticleEffectForUGUI/issues?q=is%3Aissue+abnormal+is%3Aclosed

- s_CombineInstances[0].mesh.Clear();
+ s_CombineInstances[0].mesh.Clear(false);

- if (_isTrail && _parent.canSimulate)
+ if (_isTrail && _parent.canSimulate && 0 < s_CombineInstances[0].mesh.vertices.Length)
{
    _renderer.BakeTrailsMesh(s_CombineInstances[0].mesh, bakeCamera, true);
}

• Could you please attach a minimal project (included Assets, Packages and ProjectSettings directories) that reproduces the issue?
• Profiler.EndSample is not needed.
• Please try version 3.3.14
• You can install the package as embed package and fix it
  • Manually copy a Unity package from the project’s package cache into your project’s Packages folder.

[HFX-93]

@mob-sakai The one you changed does not apply to my current version, I am currently using the submission on February 28, 2021, the version is 3.3.5, please give me a repair plan for my current version, thank you in advance

[mob-sakai]

I would like to know more about this issue. Tell me about your develop/build environment.

• 〇〇 version [e.g. 3.3.10]
• Platform: [e.g. Editor(Windows/Mac), Standalone(Windows/Mac), iOS, Android, WebGL]
• Unity version: [e.g. 2022.2.0f1]
• Build options: [e.g. IL2CPP, .Net 4.x, URP/HDRP] Could you please attach a minimal project (included Assets, Packages and ProjectSettings directories) that reproduces the issue?

[HFX-93]

@mob-sakai

I would like to know more about this issue. Tell me about your develop/build environment.

• 〇〇 version 3.3.5
• Platform: iOS, Android
• Unity version: 2020.3.4f1c1
• Build options: IL2CPP、.NET Standard2.0 I can't reproduce this problem because it was all reported by online users, you can look at the code for version 3.3.5.

[mob-sakai]

Try adding Mesh.Clear(false) before BakeMesh() and BakeTrailsMesh(). However, since you did not attach a reproducible project, I cannot certify that it is the correct modification.

+ m.Clear(false);
r.BakeMesh(m, camera, true);

+ m.Clear(false);
r.BakeTrailsMesh(m, camera, true);

[HFX-93]

@mob-sakai Is that right?

[mob-sakai]

👍 Hope they fix the issue.

[HFX-93]

@mob-sakai The version of 4.x has changed too much compared with 3.x, and many special effects in my project will appear abnormal, what should I do about this? Besides, some special effects cannot be adjusted to normal with version 4.x, can I provide you with a project, can you help me to see what the problem is?

[mob-sakai]

Of course.

• Please close this issue and create a new one.
If the same issue arises, please re-open this issue.
• Please attach a minimal project that has problems when updating ParticleEffectForUGUI from v3.x to v4.x.
• Attaching a wide variety of effects will help us solve the problem.

[HFX-93]

@mob-sakai Is that right?

@mob-sakai If this change has no performance impact, I am ready to post it online and see if the player feedback reports the error

[mob-sakai]

I don't think it will be a problem.