Settings for the project:
1920x1080 pixels (remember, only a center circle of 1050 pixels will be projected)
Open AE, select "New Composition," make sure it's set to HDTV 1080 29.97
Making a layer a 3D layer:
Clicking the cube in the layer allows it to be 3d
Opening the Position, Orientation and Rotation parameters:
Select the layer you want to adjust, and –
Hit "P" to get Position, and
SHIFT + R to get Orientation and Rotation
Setting keyframes: open up the layers with the triangle - to set keyframes, click on the stopwatch. You'll get a keyframe setter between the two arrows on the left of the layer.
Looping a video clip:
Select in properties window, then File / Interpret Footage / Main will give you access to a looping parameter
Particle system - the system used in the tutorial is under:
Effects and presets
CC particle world
Layer > New > solid
Creating a camera:
Layer > New > camera
Create a null object:
Layer > New > Null Object
To right of camera layer, select "Null 1" where "None" is displayed, to "parent: the null object."
To copy and paste properties:
Shift or command select the properties in the layer, then command-c to copy - click the layer where you wish to paste the properties, and command-v. By giving the null object the position properties of your layers, you can direct the camera to point directly at those layers.