Like this ....
function MESHoutline( Source , Offset#= .1 ) Outline = copymesh( Source, Source ) flipMesh Outline updatenormals Outline entitycolor Outline,0,0,0 for cs = 1 to countsurfaces( Outline ) s = getsurface( Outline, cs ) for v = 0 to countvertices( s ) - 1 vertexcoords s, v, vertexx(s,v)+vertexnx(s,v ) * Offset , vertexy( s, v ) + vertexny( s, v ) * Offset , vertexz( s, v ) + vertexnz( s, v ) * offset next next end function