Render shadows onto object, but not the object itself

Support Materials and Textures
1

I’ve been trying to figure this out all day. How can I have an object that receives shadows, render showing the shadow, but not itself? To help make more sense, I’m trying to render 3d over live action.

2

in the material properties of the said object, the option “only shad” will recieve a shadow but not be rendered itself. the option " only cast" will make the object make a shadow but not be rendered itself.

atatched is an image showing the location of the buttons.

Attachments

shadowexample.png1024×768 36.2 KB

3

I’ve tried those and they didn’t work. I’ve tried using render layers and almost gotten it to work. Here’s what I’ve got.

I want a shadow cast on the ground, and ive only gotten a shadow from the ambient occlusion, not the light i put in the room. I used layers, one layer, with the floor, is set to only show shadows. It’s only half work so far.

4

could you post the .blend file please.