I want to achieve a 3D look with no shading, making objects look like flat vector illustrations but in 3D. I tried by creating a material and using the luminance channel instead of the color channel. Then I tried adding a compositing tag to the object and enabling the "matte" option. Both approaches work great in achieving that "flat look" but I can't get the objects to receive shadows with either of these techniques.
To better illustrate the issue I rendered a frame (below) and I'm also attaching the C4D project file (studio R14)
From left to right:
- The first cube has a regular material applied (with color channel enabled) and it casts and receives shadows.
- The second cube has a material where we only have the luminance channel enabled.
- The third cube has a compositing tag applied with the matte option enabled.
- The tall column is there just to cast shadows.
As you can see the second and third cubes have the flat look I am looking for but for some reason cannot receive shadows.
Any idea how to achieve that flat look while the objects also receive shadows?