In this tutorial, I’ll run through how to create a Material which ‘dissolves’ in and out. It’s a good base for more complex effects!
Using Masks and Maths
Opacity mask remove material colors! why? - Asset Creation - Epic
Surface Material: Cel Shader or Toon Shader – Jess's UE4 Tutorials
UE4 Dissolve Mask(Burning) l Unreal Engine 4.26 (Tutorial)
Material Opacity Mask Value - Blueprint - Epic Developer Community
How to control opacity gradually in masked material? - Blueprint
UE4.25 Beginner's Material Tutorial Series: #7 Opacity Mask
Sphere Masks: Belching Chimney Material – Jess's UE4 Tutorials
Colour Grading: Using a Colour Lookup Table – Jess's UE4 Tutorials
UE4 Dissolve Mask(Burning) l Unreal Engine 4.26 (Tutorial)
Translucent Mask? : r/unrealengine
Surface Material: Cel Shader or Toon Shader – Jess's UE4 Tutorials
Using Texture Masks Unreal Engine 4.27 Documentation