Full dynamic one-click solution for material blending of objects.

Only one blend per object supported
Two source objects can't be blended together
The add-on only works with the first material slot
You shouldn't rename Blend materials for proper functionality
You shouldn't remove original materials for proper functionality
You shouldn't rename Blendit modifiers for proper functionality
The quality of the blend depends on mesh density and topology
Only an UV map with Active Render can be transferred
Multi-user material doesn't support different blend source objects
Auto Smooth turns on when Blend Normals is used
You must use UV mapping and Transfer UV to blend Normal maps
Used simple inaccurate blending of normal maps
Automatic connected Displacement and Volume outputs aren't supported
Limited support for input nodes depending on the source object
Blender 2.90.x bug, crash when switching to UV Edit of source object
Blender 2.90.x bug, crash when switching to Edit Mode of source object
Mappings inside node groups are not affected
Using AutoSmooth with Blend Normals in Cycles may cause terminator artifacts
Smooth linear blending gradients of solid colors are difficult to set
The use of subsurface scattering in the source material may show seam for Cycles