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OptimizeSkin cannot optimize the Emission Texture.

wavebbs

In our game , we create some avtar for our main character.
We implement it throughthe code below: Ps. we refer the sample "Mix and Match Equip".

Spine.Skin.SetAttachment(slotIndex, attachmentName, attachment);

Original design:

After change skin:

There are 3 materials after change the new skin , so we have to optimize that by combining all materials together.

//repacked skin
public void OptimizeSkin () {
   // 1. Collect all the attachments of all active skins.
   collectedSkin = collectedSkin ?? new Spine.Skin("Collected skin");
   collectedSkin.Clear();
   collectedSkin.AddAttachments(skeletonAnimation.Skeleton.Data.DefaultSkin);
   collectedSkin.AddAttachments(equipsSkin);

   // 2. Create a repacked skin.
   var repackedSkin = collectedSkin.GetRepackedSkin("Repacked skin", skeletonAnimation.SkeletonDataAsset.atlasAssets[0].PrimaryMaterial, out runtimeMaterial, out runtimeAtlas);
   collectedSkin.Clear();

   // 3. Use the repacked skin.
   skeletonAnimation.Skeleton.Skin = repackedSkin;
   RefreshSkeletonAttachments();
}

After these code , the main texture have been combined as well.
but how could I combine the emission texture through the similar way ?

Thank you for your help.

Harald

You can use the optional parameters at the method, as described here, further down in section Advanced - Runtime Repacking with Normalmaps:
spine-unity Runtime Documentation: Combining Skins

It's basically like this for the emission map parameter at a material:

Material runtimeMaterial;
Texture2D runtimeAtlas;
Texture2D[] additionalOutputTextures = null;
int[] additionalTexturePropertyIDsToCopy = new int[] { Shader.PropertyToID("_EmissionMap") };
Skin repackedSkin = prevSkin.GetRepackedSkin("Repacked skin", skeletonAnimation.SkeletonDataAsset.atlasAssets[0].PrimaryMaterial, out runtimeMaterial, out runtimeAtlas,
 additionalTexturePropertyIDsToCopy : additionalTexturePropertyIDsToCopy, additionalOutputTextures : additionalOutputTextures);

playmaker

After used "Mix and Match Equip" in the unity editor, Everything is working fine. But we have another question when we packed packages on the PC platform. The shader that we used is "Pixel Lit", but when we try to use standard shader, it works fine.
Can you fix it?
The first picture is on unity editor, the second is PC.

Harald

Are you using asset bundles, or perhaps assigning the shader programmatically?
Please note that if your scene or loaded assets (materials) do not directly hold a reference to the Spine/Sprite/Pixel Lit shader, you have to add them to the Always included shaders.

playmaker

It's surely that prefab hold a reference to the shader directly. This happens only after using the method.

Harald

Could you please send us a minimal Unity project that still shows the error, as a zip package to contact@esotericsoftware.com. Then we can have a look at it.