How to project a Shape to the terrain as Decal? like Crysis

zhucde

19-11-2008 08:59:18

see the image as follow (screenshot of Crysis)

in crysis, there is a road creater, use mouse to draw a road helper shape, the Decal (i guess it is decal) projected to the terrain in Real-time (similar as shadow),

it aslo can be assigned materials.

how to do?