photo 2 mesh 3d

[goblinfx]

Hi !!
I'm looking for a tutorial or any information about the making of a mesh 3d using photo (mountain, canyon, hill ecc...).
example : I would cast the shadow of a 3d plane on the my background (photo or video of mountain or canyon). All will be used in compositing so the mesh doesn't need lot of details.

sorry 4 my english :blush:

[toby]

I don't think I quite understand - you would use the photo as a backdrop in modeler and model over it, what else did you need?

[goblinfx]

I need to cast a shadow on my background using the compositing, but my background isn't flat (mountain, hill, trees ...)
So I need to model the geometry of my bacground only for the shadow.

[toby]

Do you know how to put backdrop images into Modeler? I can't think of any other way, it would help to have side-views of the things you need to model

[pauland]

Model the mesh roughly. Make the mesh hidden from the camera so that only the shadow will be seen falling on the mesh. That's all there is to it.

Paul

[richpr]

Chapter 18 (Compositing and Rendering) of the Inside Lightwave 7 book shows you how to do that... (I am just starting chapter 10, but can't help browsing to see what is coming...) ;-) Looks like you use lower res stand-ins...

Just in case you are looking for more info...