Projecting shadow of character onto "objects" in l

PF-Guy · Post by **PF-Guy** » Sun Jan 30, 2011 8:10 pm

Hello. I am try to figure out how to cast a character's shadow on to the floor, wall, or object that is within a live-action video. I am guessing maybe some sort of mask or transparent plane. (i.e. a transparent plane to viewers, but not to AS.) I have no clue what to do. * Thanks*

Kevin

PARKER · Post by **PARKER** » Sun Jan 30, 2011 9:18 pm

I think this subject is covered in the help manual, im sure if you read it, it will help you:

Perspective shadow, page 134.

Mikdog · Post by **Mikdog** » Mon Jan 31, 2011 1:26 pm

Hmm. Maybe a 3D app would be better for this so you could model an invisible 3D set of what's happening in the live action video and have a virtual light shine a virtual shadow onto invisible 3D set.

With AS you could hack it ... I'd suggest using vector shapes that you draw within AS, filling them with a dark grey, setting the layer blend mode to 'multiply' and then simulating a 3D effect by moving them over the required surface. Very fiddly, depending on how much irregular 3D scenery the shadow needs to move over.

Good luck.

Vagabond · Post by **Vagabond** » Mon Jan 31, 2011 7:06 pm

I made a woman sitting on a couch. The layer shadow cast a shadow on the couch and in mid-air above the couch. I was able to mask that out easily.

BUT

if the shadow falls on more than one object then Mikdog's techniques are the fastest to animate.

good luck