DAMN!
Bloodline was right, there's no soft-shadowing in the source code.
Code:
[RENDER D] {
if(VIEW_MANAGER.IsUsingSmoothShadows(m_dw_viewID) == TRUE /*&& ev->render_view->layer < 0*/)
{
LOG_INSERT("Test","Test");
}
}
There is more code in there for setting up the texture for softshadows, and maybe some kind of soft-shadow code. But I'm not sure...