Away3D Forum Error: A Material instance cannot be shared across renderables with different animator libraries

Kicker, Member
Posted: 02 May 2017 08:18 AM Total Posts: 52

Hi,

I’m having a weird problem whem loading several animated meshes into the game…

Here’s the code called on ASSET_COMPLETE:

private function onMD5ResourceComplete($e:AssetEvent):void
{
 var node:SkeletonClipNode;
 var animator:SkeletonAnimator;
 var asset:IAsset = $e.asset;
 var name:String = asset.assetNamespace;
 var animation_set:SkeletonAnimationSet;

 LightLogger.log("onMD5ResourceComplete " + name + " " + asset.assetType);

 if (asset.assetType == AssetType.ANIMATION_SET)
 {
  animation_set = asset as SkeletonAnimationSet;
  animator = new SkeletonAnimator(animation_set, _md5Meshes[name].skeleton);
  _md5Meshes[name].mesh.animator = animator;
  _md5ReadyRope.cutFiber(name);
 }
 else if (asset.assetType == AssetType.SKELETON)
 {
  if(_md5Meshes[name] == null)
   _md5Meshes[name] = {};
  _md5Meshes[name].skeleton = asset as Skeleton;
 }
 else if (asset.assetType == AssetType.MESH)
 {
  if(_md5Meshes[name] == null)
   _md5Meshes[name] = {};
  _md5Meshes[name].mesh = asset as Mesh;
  _md5Meshes[name].mesh.castsShadows = true;
 }
} 

And here’s the logged result:

onMD5ResourceComplete Sleepy.md5mesh geometry
onMD5ResourceComplete Sleepy.md5mesh mesh
onMD5ResourceComplete Sleepy.md5mesh skeleton
onMD5ResourceComplete Sleepy.md5mesh animationSet
onMD5ResourceComplete Angry.md5mesh geometry
onMD5ResourceComplete Angry.md5mesh mesh
onMD5ResourceComplete Angry.md5mesh skeleton
onMD5ResourceComplete Angry.md5mesh animationSet
[Fault] exception, information=Error: A Material instance cannot be shared across renderables with different animator libraries 

Thanks in advance.

Fabrice Closier, Administrator
Posted: 02 May 2017 08:47 AM Total Posts: 1265 [ # 1 ]

The error is pretty clear. you have meshes with animators that are sharing same material. Simply make a new material for each new mesh. You can share the texture(s) if its a TextureMaterial that you need.

If you do not assign the material yourself, and it’s the work of the parser/library
simply generate a new material before addChild the mesh to the scene, reusing the textures from the previous one.

Kicker, Member
Posted: 02 May 2017 09:03 AM Total Posts: 52 [ # 2 ]

Oh, I think I see what’s happening, thanks.

I added this line:


_md5Meshes[name].mesh.material = new ColorMaterial();

And now it works.

Apparently, when you load a mesh file with no material, a default one is automatically attributed to it, so if you load several files in a row without giving them a new material in between, they will share the default material…

Error: A Material instance cannot be shared across renderables with different animator libraries Software: Away3D 4.x

Kicker, Member Posted: 02 May 2017 08:18 AM Total Posts: 52 Hi, I’m having a weird problem whem loading several animated meshes into the game… Here’s the code called on ASSET_COMPLETE: private function onMD5ResourceComplete($e:AssetEvent):void { var node:SkeletonClipNode; var animator:SkeletonAnimator; var asset:IAsset = $e.asset; var name:String = asset.assetNamespace; var animation_set:SkeletonAnimationSet; LightLogger.log("onMD5ResourceComplete " + name + " " + asset.assetType); if (asset.assetType == AssetType.ANIMATION_SET) { animation_set = asset as SkeletonAnimationSet; animator = new SkeletonAnimator(animation_set, _md5Meshes[name].skeleton); _md5Meshes[name].mesh.animator = animator; _md5ReadyRope.cutFiber(name); } else if (asset.assetType == AssetType.SKELETON) { if(_md5Meshes[name] == null) _md5Meshes[name] = {}; _md5Meshes[name].skeleton = asset as Skeleton; } else if (asset.assetType == AssetType.MESH) { if(_md5Meshes[name] == null) _md5Meshes[name] = {}; _md5Meshes[name].mesh = asset as Mesh; _md5Meshes[name].mesh.castsShadows = true; } } And here’s the logged result: onMD5ResourceComplete Sleepy.md5mesh geometry onMD5ResourceComplete Sleepy.md5mesh mesh onMD5ResourceComplete Sleepy.md5mesh skeleton onMD5ResourceComplete Sleepy.md5mesh animationSet onMD5ResourceComplete Angry.md5mesh geometry onMD5ResourceComplete Angry.md5mesh mesh onMD5ResourceComplete Angry.md5mesh skeleton onMD5ResourceComplete Angry.md5mesh animationSet [Fault] exception, information=Error: A Material instance cannot be shared across renderables with different animator libraries Thanks in advance.
Fabrice Closier, Administrator Posted: 02 May 2017 08:47 AM Total Posts: 1265 [ # 1 ] The error is pretty clear. you have meshes with animators that are sharing same material. Simply make a new material for each new mesh. You can share the texture(s) if its a TextureMaterial that you need. If you do not assign the material yourself, and it’s the work of the parser/library simply generate a new material before addChild the mesh to the scene, reusing the textures from the previous one.
Kicker, Member Posted: 02 May 2017 09:03 AM Total Posts: 52 [ # 2 ] Oh, I think I see what’s happening, thanks. I added this line: `_md5Meshes[name].mesh.material = new ColorMaterial();` And now it works. Apparently, when you load a mesh file with no material, a default one is automatically attributed to it, so if you load several files in a row without giving them a new material in between, they will share the default material…

Error: A Material instance cannot be shared across renderables with different animator libraries

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