Shadow Catcher

OctaneRender improves realism by implementing the Shadow Catcher to create shadows cast by objects onto its surroundings. The shadows cast are not limited to simply a ground plane but can be cast onto walls and other objects in the scene that represent objects in the 2D environment map.

Using the shadow catcher:

1. Make sure there is a source of light in the scene, this may be a direct light source or an emission map connected to a scene object.
2. Place a Diffuse material on the shadow catching objects in the scene and enable the Shadow Catcher option at the bottom of the Diffuse material's paramters.
3. In the Kernel settings, activate Alpha Channel and make sure Keep Environment is disabled.

  

(By Icelaglace)