[Unity 5] Submeshes disappear / don't rebuild

kbm

I already talked about this in the other thread about "Unity 5 breaking my runtime" a month ago, but I thought I would open a new thread about this, as it might affect other users as well and there is still no fix.

The problem is this:
When I use the "Submesh Separator" functionality and build submeshes, they will keep on disappearing / not properly rebuilding throughout my workflow.
This mostly happens after I hit the Play button in Unity but sometimes happens while I edit something in the scene view as well.

Does anyone else experience this? I am slowly going crazy over this bug as I use many Spine objects with submeshes in my game and half my game regularly disappears. Really frustrating..

The only way to make the meshes rebuild / render again is to hit Cmd + S (Ctrl + S) to save my scene.

So: Is there anyone else out there who gets this bug? And is there an ETA for a proper fix on this? I REALLY love Spine and am 99% happy with everything else but this is bugging me out soo much.. please help! 🙁

Mitch

I was hoping to get some other rendering improvements in before tackling the **** show that was my original submesh renderer workflow... I'll take another look at it today :/ at the very least I can make a temporary script for you that constantly trolls the scene to find any meshes that haven't been built yet and rebuild them.

Pharan

Does it have something to do with the HideAndDontSave hideflag on the SkeletonRenderer's mesh? I hear that hideflag is a real misnomer.

kbm

Mitch schrieb
I was hoping to get some other rendering improvements in before tackling the **** show that was my original submesh renderer workflow... I'll take another look at it today :/ at the very least I can make a temporary script for you that constantly trolls the scene to find any meshes that haven't been built yet and rebuild them.

Thanks! A temporary fix (even non-optimal) would also be appreciated, as this is kind of driving me nuts. Thanks so much for your time and effort! 🙂

Mitch

Pharan schrieb
Does it have something to do with the HideAndDontSave hideflag on the SkeletonRenderer's mesh? I hear that hideflag is a real misnomer.

It gets stuck in the transition from Playing and Not Playing :/ I don't understand why it fails as much as it does sometimes and not all the time.

using UnityEngine;
using UnityEditor;
using System.Collections;

[InitializeOnLoad]
public static class SpineSubmeshEditorFix {
   static SpineSubmeshEditorFix () {
      EditorApplication.playmodeStateChanged += PlayModeStateChanged;
   }

   static void PlayModeStateChanged () {
      if (!EditorApplication.isPlaying) {
         var allRenderers = Object.FindObjectsOfType<SkeletonRenderer>();
         foreach (var r in allRenderers)
            r.Reset();
      }
   }
}

Put this inside some C# source file in Assets/spine-unity/Editor
(or any Editor folder)

Ejlersen

I'm also having this problem and the current hot fix doesn't solve the problem.

Here are the current problems I'm having:

Setting submesh separators will in some cases:
- Add an empty array element in MeshRenderer materials (usually index 0).
- Setting array size to 2 initially will likewise add empty array elements in MeshRenderer materials.

The two points will persist the brokenness of the object and I have to delete and start over.

I've successfully managed to get proper submeshes in Edit-mode by doing it in a specific order, but starting Play-mode does the following:

Adds an additional empty array element in MeshRenderer materials.
Submeshes disappear.

The changes are persistent when re-entering Edit-mode.

Pressing the Reload-button on the SkeletonAnimation component will now add an additional submesh. Correct setup in Edit-mode would produce two submeshes, pressing the button after Play-mode would produce three.