Adjust transparency of polygons the material is mapped to. (Note: Transparency is a bit of a limited function in Element due to some current gpu limitations and may not yield results like you would find in a full 3d program). Also see Render Order
for alternate looks when using multiple transparent objects in a scene.
Adjust the amount of smoothing for polygons associated with this material
Converts semi-transparent areas of the map into completely transparent or completely opaque areas. See Opacity Maps
for more info.
Force object to render invisible but receive ambient occlusion or occlude objects that intersect.
ADJUST POSITION FIRST
You may want to adjust the position of your floor object before turning Matte Shadow on since it will render invisible. Make sure you have Ambient occlusion turned on in the Render Settings as well to catch on the floor.
3D Truck Composite
Use 3D Camera tracking in AE CS6 and Camera Tracker
Setup and align ground plane and adjust 3D coordinates
Build Matte Shadow object (ambient occlusion)
Material is not affected by ambient occlusion.
Control the amount of ambient occlusion this material will use on the polygons it is mapped to in relation to the main ambient occlusion settings in Element effects control panel render settings.
Control the amount of glow this material will use in relation to the main Glow settings in Element effects control panel render settings.
Force an object to render the backside of polygons for one-sided surfaces.