Texture Arrays or 3D Textures support in Unreal Engine 4?

[anonymous_user_47069605]

@Antidamage;129230

Why do you specifically want to use a 3D Texture? It seems like that’s not ideal for terrains which aren’t likely to change shape dynamically (eg, dynamically carving out a solid like wood is more suited for 3d textures).

Typically what you do is create a shader with several textures then blend/mask between them at different elevations and slopes. I do this in conjunction with landscape painting layers and it comes out real nice, I even have a nice, patchy transition between grass and rock. If that might be useful for you, you can get a copy of the terrain shader here: A different kind of cel shader - Showcase - Epic Developer Community Forums

A 3D texture or texture array has nothing to do with the object it is being used with. A 3D texture allows one to upload an array of textures in a single call and also reference the texture as an array in a shader. This allows one to paint on a terrain with “unlimited” (Its large enough) combinations of textures in a single draw call.