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dRE86
12-19-2009, 05:28 AM
I have a footage that the camera turns 180, and i need to do a matte painting in the scenario, but how can i be able to attach my matte painting in the footage and deal with all that perspective change ?

tracking individual parts wont work..



Should I create a HDRI image ?
or maybe, break in individual elements and compose them in a 3d space ?

dont forget that the waves will be moving


final frame: without pixel aspect ratio, 1.3333

i will erase those houses and add a 3d castle.

http://is.pinkbike.com/photo/4389/pbpic4389930.jpg
http://www.pinkbike.com/photo/4389930/

SeaJackal
12-19-2009, 02:05 PM
Maybe you can get away with diferent patches for the houses or you could project the matepaint onto a piece of geo that resembles the cliff and isolate the sea with a roto,



cheeers

RogerWickes
12-19-2009, 06:19 PM
I would think that you could do a low poly model of the set and project your plate onto it, to give the accurate distortion with the scene, and then use that as your backdrop. I know you could do this in Blender.

beaker
12-19-2009, 10:57 PM
when you say it does a 180, is that on a tripod? I only ask because if so then that is a nodal pan where there isn't any perspective shift. It makes putting a matte painting in there really easy.

dRE86
12-23-2009, 08:02 PM
yes, its in a tripod

how would you do that ?

beaker
12-23-2009, 10:52 PM
You can just do basic 2d tracks or use a 3d tracker and export 2d tracks from it. There isn't any perspective shift in a nodal pan.

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