Function DirectionalLight.directionalShadowBiasSplitScale
Amount of extra bias for shadow splits that are far away. If self-shadowing occurs only on the splits far away, increasing this value can fix them.
double directionalShadowBiasSplitScale() nothrow @property @nogc;
void directionalShadowBiasSplitScale
(
double v
) nothrow @property @nogc;