Trying to make Morph with a curve cornice, with a Cover Fill applied.
As you can see in the Image, I can not apply the Surface material in an even continual manner.
And I cannot edit the Surface material as Morph, do not have the Cover Fill Orientation function...
Or do they? Is there a trick??
No, you cannot. Texture is placing via U-V coordinate system. Advanced 3D modelling software has tools to edit U-V coordinates (Rhino, 3DS Max, Maya, Blender...). Archicad does not have any advanced U-V map editing feature.
The solution - try external 3D modelling software. For example Blender - it's free of charge. Fix textures there and import it back to ArchiCAD.