Great !
Basicaly, what i need is to add 'shadows' to the ground for static objects.
It could be also used for 'roads' and spot decorations on the ground.
Additionally, can you please add possibility to use non-linear fog ? What i am looking for is to make fog appear only starting at certain distance (fog of war)
EDIT:
regarding fog, could you please add additional parameter to World.setFogParameters() that would allow to specify 'starting' limit for fog (GL11.GL_FOG_START in LWJGL) ?