Hide environment in reflections?

[dafassi]

Hi!
Im trying to render only reflections of objects - but i whant to hide the environment for reflections.
See the image: There is a cube that mirrors in the ground.

1- The cube should be rendered as ALPHA.
2- The ground should only render the cubes diffuse reflection.
3- The ground should not reflect the environment.

Is this possible?

[J.C]

To do this there are few steps needed:
1. Assign different layer IDs to both object. eg. 1 to box 2 to plane (Layer number option in Octane properties in Object data tab)
2. Enable Octane Render layers and Render passes
3. Enable LayerReflections in Render passes.
4. Choose Layer 1, mode Normal
5. Press render = rendered floor with only box reflection (OctLayerReflections pass) + box on Combined pass