Tuesday, May 12, 2009

vfx notes 2

vfx classnotes 2/2

vfx shot vs. standard shot
-can't be accomplished thru standard photography
-needs repair of problems
-needs addition of other elements (pyrotechnics, etc.)
-typically very expensive: $4000/sec.

storyboard to identify vfx - necessary shots

early in-camera techniques:
-split screen
-forced perspective
-stop action
-adjusting speed
-double exposure/ traveling mattes
-miniatures

vista vision (aka. 8 perf): rotate 35mm for bigger frame. sacrifice sound.

rear projection: gateweave causes jitter in rear projected bg.
-double grain from shooting projected film

front projection: scotch-lite = what screens are made of. same thigns as stop signs.

optical printing: pre-exposed film and mattes to composite images.

matte painting: done on glass in front of shot - lighting changes through day, so make ambiguous light and shadows. still, image loses life so.... VFX to bring it back!

paralax: relative motion of objects in relation to camera. things close to you move fast!

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