Well young Compositor you will be trained in the force nodes. In this tutorial you will learn how to create a Hologram entirely within Shake. This one's for all you Star Wars fans who like to flood the web with thousands of fan films.
First off FileIn your footage. It's best to film your character behind a blue/green screen. I would suggest using a green screen and making your cloak a dark color.
Go ahead and key out the background (or
roto if you didn't film behind a green screen) giving your footage
an alpha channel.
Now go ahead and do some color correction to your footage to give
it the desired tint and look you want. For mine I desaturated the
color then added a ContrastLum to bring out the
highlights. Then I used a Brightness to further
adjust the values. Afterwards I applied a Mult
node with a blue tint to my footage.
Now I want to create a glowish look to
make my footage look more luminated. What we need to do is apply a
Blur and give a value of 45. Now
we'll add the Mult and Blur
together using a Screen node.
The Screen node will
retain the highlights from both images when adding them together.
It works basically like adding two film negatives together.
Now we want to add some scan lines to
footage. Create a Checker node located in the
Image Tab and change the ySize to
3. We'll use this image as a mask input for a
Fade node. Bring down the values of the
Fade and add a Blur to the
Checker pattern to give it a softer line
pattern.
Create a Ramp node and use this to mask off
another Fade. What this will do is create a fading
out look at the bottom of the footage. I added a
ContrastLum to create a sharper ledge in the
mask.
And there you go, now you can send
orders to your troops from across the galaxy and look cool doing
it. If you want to see what mine ended looking like you watch it
here.
My movie currently has flickering in it. I'm still playing around
with the flickering effect on the side. I'm trying to find a really
good flicker I like so until then you can scroll down to see how I
managed the current effect. If anyone comes up with any other cool
flickering ideas or effect you're more than welcome to email me at
rboyle@sketchypictures.com and let me know.
Scripted
Flicker
Alright now let's add some equations to help us out. Add another
Fade node above the one that uses the
Checker node. In the Fade node's
value box type rnd(time).
Load that value into the Curve
Editor to see what effect this is having on the
Fade's value.
By default it puts a random value between 1 and 0. Render out a
Flipbook and take a look at your footage. It looks ok but lets take
it little further....
Right click in the Fade parameters and select
Create Local Variable.
Name this variable Time and click
OK.
Repeat this step two more times and create two more variables
called height and position.
Now type sin(time) in
the Time value box. Instead of putting random
points between 0 and 1 this will make a smoother curve based on a
sin wave.
Now we want to control the wave to give
us more exaggeration on the flickering. In the Value box type
(Time+Position) this will control the position of
the Sin wave vertically in the Curve Editor. Move
and key your sliders to get the effect you want.
Then multiply that value by the Height value. Your
equation should look like this:
(Time+Position)*Height. By doing this we can
increase the height of Sin wave in the Curve
Editor. Move and key your sliders to get the effect you
want.
Note! Do not key or move the sliders to the value
box with the equation in it. If you do the equation will be
overwritten and you'll have to go back and re-enter it.