Comment # 7 on bug 59492 from smoki

 Supertuxkart game use irlicht engine and ECM_DIFFUSE_AND_AMBIENT command for
the material color, which use vertex color for both diffuse and ambient light.
That irlicht command is actualy glColorMaterial (GL_FRONT_AND_BACK,
GL_AMBIENT_AND_DIFFUSE).

 mb->getMaterial().ColorMaterial = video::ECM_DIFFUSE_AND_AMBIENT;


http://sourceforge.net/apps/trac/supertuxkart/browser/main/trunk/src/graphics/material_manager.cpp

 And i get this results (see attached pictures) when i use tcl or tcl_mode=0.
It get correct lighting with swtcl and incorrect with tcl.