[Danny Perez-triana]

i feared i was being idealistic thinking i could just run keylight over it and proceed. what exactly is dv’s “artifacting”, it’s too late for me to use a different camera at this point, but i would like to understand all the limitations and downfalls. thanks for your time,

ignacio

[Danny Perez-triana]

i’ll be shooting two dancers that are wearing pretty elaborate costumes (no green in them). they’re each in full body paint as well. one white, one blue (that’s why i didn’t want to do a blue screen). That dvgarage plugin seems great, i also have the foundry’s keylight plugin for ae. part of the the costume has yellow in it however. in terms of the lighting, if i can count a flat even light around the subject will this yellow still key out with the green? or is it only a matter of spill?

thanks for all your input.

ignacio

[Danny Perez-triana]

ok, so i got the interruption to fill in the form of the person (i’m using a still for now, since i don’t have any footage against a green screen right now). thank you so much.

my question is this: in terms of dealing with footage of dancers against a green screen (lots of movement), i fear a roundabout way of getting this effect. something i did different to avoid the screen just filling up with the interference image when i selected alpha matte was took out the background i had of the still of a woman. so when i rendered it with an alpha channel, the track matte only filled in the form of the woman not the entire screen.
i assume(?) this is because ae only recognizes the woman as the image in the composition and the background of the composition (regardless of color) would not be matted when an alpha matte was selected?

in terms of this: how would i go about getting this effect for dancers moving pretty fast: as i understand it:
1) i would have to take the footage of dancers against a green screen. key out the green, so that in my composition window the dancers were the only image set against whatever background color i had selected for the composition.
2) render this out with an alpha channel.
3) bring that back into ae.
4) place it above whatever i was using for interference in the timeline.
5) select alpha matte, and the dancers should be filled in with interference?

i guess i’m afraid of a double key: that i would have to create a separate image for the dancers to do this effect, and then key that again to put them on top of a background with this effect running.

i’m sorry if i’ve been confusing, it’s very generous of you to give me some of your time,
i hope you had a good day.
ignacio

[Danny Perez-triana]

the effect i would want for some actors i’m shooting against a green screen is to have them move around but then have them appear as broken video signals.

what i want to get, and at least what is shown in the tutorial https://crewoftwo.com/making/effects/hologram/index.html , is that the interference layer (my matte layer), will fill in the shape of the keyed footage (the sith dude) in the layer below. so i would see the outline of the person but it would be filled in with the interference. so i guess what i want is potentially contrary to how these mattes work, meaning i want the interference to fill in opaque, the keyed footage.

i could then just duplicate the layer without the matte and reduce the opacity a bit to get this mixed video reception effect (the tutorial says to toggle the eye icon next to the layer to bring it up or down, but any time i click on the eye it either goes on or off)?

i thought i understood it as, by rendering the keyed footage with its alpha channel, when i selected alpha matte, the matte layer would automatically set itself over the footage of the keyed person.

thanks for bearing with me, it’s a big help

ignacio

[Danny Perez-triana]

all that does make sense. thanks, i have a better understanding of it now. but i’m still having a problem in my composition: when i set my layer to be matted (keyed footage that was rendered with rgb+alpha) using an alpha matte as the tutorial calls for, instead of getting the above layer (interference) within the shape of the person, only that layer appears, meaning my matte layer doesn’t appear at all.

i’m at a loss right now. any help?

ignacio

[Danny Perez-triana]

i know from watching the “making of” on the dvd, that that effect was effect by rear-projecting onto a sheet of latex that doubled as the screen. Then someone just stuck their hand through the hollow body of the tv and pushed out on the latex. this probably doesn’t help you in terms of how to accomplish this digitally, but an interesting fact nonetheless.
good luck,

ignacio

[Danny Perez-triana]

so i tried to complete the tutorial and got stuck once i had to combine the two elements (animated interference and keyed footage). when i place these two clips in the timeline only the bottom layer (in this case my keyed footage of an actor) allows for a track matte (the top layer doesn’t show the pulldown menu). if i move my animated strip so that it’s the second layer, it then has the pulldown menu but if i select alpha matte it just shows that animation full screen, the actor is gone.
why is it that only the bottom layer in the timeline allows for a track matte? anyways, i’m a newb to ae and often run into problems with tutorials sometimes cause i have no formal training so i’ve just been picking up details along the way, that said, any input would be huge since i really want to achieve this effect for a shoot i have coming up. thanks again,
ignacio

[Danny Perez-triana]

thanks so much, there’s enough there to play with to achieve the effect i want.
take care,

ignacio

[Danny Perez-triana]

i would want something a little more dramatic and the pieces breaking off and reforming not to be uniform, is this possible with tweaking scatter?

[Danny Perez-triana]

sorenson 3 seemed to help alot. thanks alot for your input: as always, a huge help.
take care.