catch the shadow!

[stezza]

Hi all.
I am trying to catch the shadow of the balloon in this image.
I have applied an OPN to the ground with Matte surface turned on Alpha contribution to -1 shadows on and effect alpha.
You can see the shadow of the balloon ok but it's also picking up the shadows from the dome light which lights the scene.
The scene is just a dome light and directional for hard shadow.

How do I get rid of the dome shadow cast?

Thanks for any help

[vlado]

You can perhaps use light linking to prevent the dome light from illuminating the plane? Or shadow linking to prevent the balloon from casting shadows from the dome light.

Best regards,
Vlado

[stezza]

Great, light linking worked fine, why couldnt I think of that?
PS any chance of VRay 1.5 for maya 2013?

[stezza]

Vlado, could you tell me how to set the shadow linking ?

many thanks

[ChaosGroup]

You can break a shadow link form here: Lighting/shading > Break Shadow Links