This sketchup video tutorial from Justin Geis is based on position texture tool of sketchup. By going through the video, one can learn how to use texture tool to take texture in sketchup and resize and rotate for generating a custom texture.
Inside SketchUp, materials are used as tiled images which signify that the pattern or image will reiterate both vertically and horizontally over any entities you paint.
SketchUp’s Position Texture Tool is useful for modifying a material on a surface in various ways, together with repositioning, resizing, and distorting. Besides, this tool facilitates you to carry out distinctive actions on images like painting a picture encircling a corner or projecting it on a model.
Run the Position Texture Tool from the context menu. (sites.google.com) for a face entity.