Hi!
I'm very new to this forum and to Sketchup, which I've only just discovered (about a month ago) and which I'm trying to come to terms with. I find it quite difficult, though, and need your help in a matter which has been driving me crazy for 5 days already...

I'm trying to create a 3D-object (as .dae) that is only partly opaque and has some completely transparent parts. This object is to be used in Sweet Home, as a wall decal.

I already created a picture with transparent background :

My problem is that I can't make it a .dae or use it as a material. I did try, but obtained a picture with a black background... ?

Do you maybe know which step I've overseen? Help ?