I guess you are talking about a light map. To make a light map, light your object, then in edit buttons press the ‘make’ button that says ‘vertcol’. then in materials, select ‘col light’. Also you can fake shadows by using vertex paint or tex paint.
hi man
strange things hapen…when I add object and lamp to the scene and switch 3dwindow to the ctrl + z (shaded solid) the object is always black
but…I have an examle from this thread https://blenderartists.org/forum/viewtopic.php?t=19241
and in this file it works correctly. I sought almost everywhere I it seems that both files is identical.