PBR materials don't seem to react to numerical changes

When adding PBR materials in R8 downloaded from dedicated sites I cannot change their aspect whereas in R7 I could do that either in the materials edit window or in object properties window. Now neither seem to work. What am I not getting here?

what exactly are you trying to edit, this is not clear to me.

For example I wanted to change the size of the texture so that it corresponds to the size of the object. Using « object properties in R7 I could do that but in R8 it is not as easy or at all.

hi Joe, can send me a small example file? I suspect the material is set to use WCS texture coordinates, so then you cannot edit the texture size through the object properties

Ok, the texture is set at WCS/OCS (box style). The file is a bit big at 45 Mo.

In the texture mapping settings, change it to use Mapping channel 1, then you can drive the texture size through the object properties:

Excellent, thanks.