layerset backgound issues

[splace]

has a background 'black pettel shape' when nothing in layer 0 (default).

#VRML V2.0 utf8 Titania V4.5.0

LayerSet {
  activeLayer 1
  order 1
  layers Layer {
    children DEF Box Transform {
      children Shape {
        appearance Appearance {
          material Material { }
        }
        geometry Box { }
      }
    }
  }
}

also affecting builtin 'recent' dialog

[create3000]

If the background is transparent or no background (layerset) is present the widget background is shown with the Titania logo.

[splace]

OK, but..... i find it quite confusing.....

If the background is transparent

Background nodes can't be transparent, i guess you mean no geometry?

but then why doesn't this happen in an empty scene, but does for an empty layer? how are they really different?

when this happens requires some deep understanding, so initially its baffling.

obviously the same scene doesn't do this in x-ite, i think it should be WYSIWYG (maybe just in x-ite compat. mode)

notice: it stops you reading the file names in the recent dialog.

[splace]

If the background is transparent

Background nodes can't be transparent, i guess you mean no geometry?

i see x3d has Background nodes that now do support Transparency, via a new field, i guess this was introduced in concert with layers, no point before.

[splace]

[enhancement] allow choice of transparency representing background.

[splace]

FYI if you use the X3D transparency field of Background and save as VRML2, it is included, so, i think, a strictly parsing VRML browser will report as an error.

[create3000]

Allowing to choose if the background is rendered is a good option, because it makes it more transparent to the user what happens if he exports an image.