My spine version is 4.0.62

When I drag exported objects to Unity, I find texture have error about alpha.

This is spine exported texture open with Photoshop.

This is spine exported texture show in Unity Inspector.

This is spine animation in Unity.

This is Spine Texture packge Setting.

by the way, I can't active Spine material Straight Alpha Texture field in Unity, because it can't work on Mobile devices.(I only test in Android.)

This is Spine raw project.
SpineProject.rar

Misaki написал

You are exporting your textures as straight alpha, but it seems that you have not adjusted your import settings to straight alpha in Unity. Please see the following section of the spine-unity runtime documentation:
spine-unity Runtime Documentation: Advanced Premultiplied vs Straight Alpha Import

I try it,but it only work on PC, can't work on mobile device(for now, I just test on Android.)

Misaki написал

You are exporting your textures as straight alpha, but it seems that you have not adjusted your import settings to straight alpha in Unity. Please see the following section of the spine-unity runtime documentation:
spine-unity Runtime Documentation: Advanced Premultiplied vs Straight Alpha Import

I think I miss some important settings in spine that can make exported texture alpha channel is clean.

Misaki написал

You are exporting your textures as straight alpha, but it seems that you have not adjusted your import settings to straight alpha in Unity. Please see the following section of the spine-unity runtime documentation:
spine-unity Runtime Documentation: Advanced Premultiplied vs Straight Alpha Import

Thanks

Harald написал

liuweichicun написал

by the way, I can't active Spine material Straight Alpha Texture field in Unity, because it can't work on Mobile devices.(I only test in Android.)

Why are you exporting as straight alpha but using it without Straight Alpha Texture enabled? Applying the wrong import settings in Unity will make your atlas look incorrect.

Why can't you enable the Straight Alpha Texture field Material property in Unity for Mobile? What problem did you encounter when you enabled it?

I should read documentation seriously. The problem is sovled.