Mesh Bump plugin

[PeterC (PC)]

Here's the dump if it helps
(Sorry for the hijack Stab, did I mention what a nice cross that is already? )

Code:

Dump written 2012-12-16_10-43
Version: 1.5.pre1.38.g62be8
Window: geom
Reason: function_clause

Short stack trace:
[]

Long stack trace:
[{wings_draw_setup,add_tangents,
                   [[[{-1.0,0.0,0.0},0,3,2],
                     [{-1.0,0.0,0.0},2,1,0],
                     [{0.0,-1.0,0.0},0,4,7],
                     [{0.0,-1.0,0.0},7,3,0],
                     [{0.0,1.0,0.0},2,6,5],
                     [{0.0,1.0,0.0},5,1,2],
                     [{1.0,0.0,0.0},5,6,7],
                     [{1.0,0.0,0.0},7,4,5],
                     {{6.1257422745431e-17,0.0,1.0},-1,[3,7,6]},
                     {{6.1257422745431e-17,0.0,1.0},-1,[6,2,3]},
                     {{-6.1257422745431e-17,0.0,-1.0},1,[1,5,4]},
                     {{-6.1257422745431e-17,0.0,-1.0},1,[4,0,1]}],
                    {array,8,10,
                           {{0.0,0.0,0.0},{0.0,0.0,0.0}},
                           {{{1.0,0.0,-6.1257422745431e-17},{0.0,1.0,0.0}},
                            {{1.0,0.0,-6.1257422745431e-17},{0.0,1.0,0.0}},
                            {{1.0,0.0,-6.1257422745431e-17},{0.0,1.0,0.0}},
                            {{1.0,0.0,-6.1257422745431e-17},{0.0,1.0,0.0}},
                            {{1.0,0.0,-6.1257422745431e-17},{0.0,1.0,0.0}},
                            {{1.0,0.0,-6.1257422745431e-17},{0.0,1.0,0.0}},
                            {{1.0,0.0,-6.1257422745431e-17},{0.0,1.0,0.0}},
                            {{1.0,0.0,-6.1257422745431e-17},{0.0,1.0,0.0}},
                            {{0.0,0.0,0.0},{0.0,0.0,0.0}},
                            {{0.0,0.0,0.0},{0.0,0.0,0.0}}}},
                    <<>>],
                   [{file,"wings_draw_setup.erl"},{line,871}]},
{wings_draw_setup,col_tangent_faces,7,
                   [{file,"wings_draw_setup.erl"},{line,418}]},
{wings_draw,update_fun_2,3,[{file,"wings_draw.erl"},{line,321}]},
{wings_draw,update_fun,3,[{file,"wings_draw.erl"},{line,307}]},
{wings_dl,map_1,5,[{file,"wings_dl.erl"},{line,223}]},
{wings_draw,refresh_dlists,1,[{file,"wings_draw.erl"},{line,49}]},
{wings,main_loop,1,[{file,"wings.erl"},{line,281}]},
{wings_wm,handle_event,3,[{file,"wings_wm.erl"},{line,825}]}]