Hello Ricardo, thanks for the reply. Surface shader doesn't seem to work, at least it shows as a black sprite. On the other hand the sprite shader does work and it blends the spine asset with any other texture I choose. Does this mean that amplify works with Spine? thanks.
Hello! Like Ricardo has mentioned in his previous reply, we couldn't find enough information regarding Spine's requirements for support / use of custom shaders, so we can't really guarantee that ASE shaders will work with it.
In this particular situation, your best bet will be to ask in the Spine forums if anyone has already tackled this or if the developers can provide further information regarding its implementation in custom shaders.
The sprite shader that has been shared is comparable to the basic Unlit, any effect that you want to create must be built from scratch through our editor.
Please let us know if you have any further questions, thanks!