Object node: size of screenWidth.
Convert the PostRender to a PreRender, called before we render.This makes more sense as this way things are prepared for the very first render.
Make chances to randimoze a given row when scrambling dependant on the type of Object.
The point: in case of the Cube, all rows should have equal chances. In case of the Pyraminx, the smaller the row, the smaller the chance should be. In particular the trivial 4 corners of the tetraherdon should have a very small chance to be selected.
More support for the 3x3x3 Solver: more of the actual 3x3x3 solver mechanism.