Just a tip I thought I would share.
I've noticed that you can create a decoration floor to make your actor darker for when he is walking it dark areas, but what about shadows that only cover a partial area of the actor?
I've found a simple trick you can do to get around this, it may not work with all scenes, but here is what I did.
1:) In Photoshop I open up my rendered scene and create a new layer.
2:) Using a hard brush, I paint over in the scene where I want my shadows to appear, I used black, but you can use any color.
3:) Once you have your shadows set go to Filter>Blur>Gaussian Blur
4:) Apply an ammount that you think looks good.
5:) In the layer of your shadows set a transparency level.
6:) Hide the rendered scene layer and save the file as PNG.
7:) Load the file in your scene in SceneEdit and move the layer to the correct spot
Tips:
1:) Use one of your sprite images between the image and shadows layer to see an over all affect.
2:) You can also select an area and do a graduate fill so that it has nice color changes.
Problems:
1:) It makes your overall scene maybe too dark in some areas if it already has heavy shadows.
2:) Effect only works in 3D Accelerated mode.
3:) The shadows are 2D so it may not look right in some cases.
Hope some of you finds this helpful.
-McCloud