Motion 4 Shadows - Casting on plane without image?

[Chadfish]

Hi

I'm composting a scene in Motion 4 where I'm trying to get realistic shadows over a video background. I have a locked down shot of a boardwalk as a background. I have this still image of a gnome cut-out that I have run far back, up to the foreground. I added a light to get 3D shadows, and I used a map graphic placed where the ground is on the video to give me a plane for the gnome to run on. The shadows only show when I have the graphic in the shot.

Is there a way to lose the graphic and keep the shadows, so it looks like the shadow is in the ground of the video?

Here are examples:

Without the image

With the image

 

[Cools]

Yup, you can do that.

Select the map graphic that you are using as the ground plane. In Inspector > Properties under Shadows select "Shadows only".

 

[Chadfish]

Great I found it! Thanks.

Here's the result: http://www.youtube.com/watch?v=hKVmJeW7Dg8

 

[Cools]

Haha, nice