[Kalleheikki Kannisto]

Since there’s no perspective, an animated displacement map is a viable option — not that it is necessarily easy to figure out what the displacement map should look like, but once you have one figured out for a single “dip”, you can copy it, scale it, change opacity and move it around to create the gravity warping effects.. Also, it would need a separate layer for anything that peeks down from the underside. 16 bits for smooth displacement.

Kalleheikki Kannisto
Senior Graphic Designer

[Kalleheikki Kannisto]

Not familiar with what works in mogrts what doesn’t, but here’s an expression that does that.

finalvalue = value;
startvalue = 0;
starttime = 1; // starting time in seconds
duration = 3; // duration in seconds
Math.round(linear(time, starttime, starttime+duration, startvalue, finalvalue))

Well, actually what this does is animate the source text value between zero and the end value, but you can probably figure it out from there. You could simply link to this value, taking out the rounding.

Kalleheikki Kannisto
Senior Graphic Designer

[Kalleheikki Kannisto]

Based on the description of what you want to achieve:

min = 881;
max = thisComp.layer("S-point-1-Display_Ctrl").effect("Slider Control")("Slider")+100;
val_num = thisComp.layer("S-point-1-Display_Ctrl").effect("Slider Control")("Slider");
if(numKeys > 1){
v = ease(time,key(1).time,key(2).time,min,val_num);
}
[value[0], v]

There was a whole bunch of code after this point in your expression; I didn’t understand the purpose thereof.

Kalleheikki Kannisto
Senior Graphic Designer

[Kalleheikki Kannisto]

All three lines had typos in them that had to be fixed before this worked at all. Single quotes and missing parenthesis. Once fixed, I had no problem keyframing them.

Layer A
if(comp("Comp A").layer("Layer 1").effect("Slider A")("Slider")<=25)100 else 0
Layer B
if(comp("Comp A").layer("Layer 1").effect("Slider A")("Slider")>=26 && comp("Comp A").layer("Layer 1").effect("Slider A")("Slider")<=50)100 else 0
Layer C
if(comp("Comp A").layer("Layer 1").effect("Slider A")("Slider")>=51 && comp("Comp A").layer("Layer 1").effect("Slider A")("Slider")<=75)100 else 0

Or, if that doesn’t do it, what Dan said.

Kalleheikki Kannisto
Senior Graphic Designer

[Kalleheikki Kannisto]

I would say it depends on what it is that you are trying to stabilize. I haven’t tried this but in theory this should work.

1) Do a 3D camera track
2) Create 3D nulls at the point around which you want to stabilize
3) Use an expression to convert the 3D position data to 2D screen coordinates
4) Offset layer by negative amount of the motion in relation to time = 0

That would be position-only stabilization. For scale and orientation you would need at least two points and calculations of the angle and distance between them, and then you would inverse those for rotation and scale values for the layer.

Smoothing the motion would be that plus adding back in a smoothed null motion values.

This all assumes there’s relatively little camera motion but enough to get a track. You won’t be able to “stabilize” in 3D, i.e. remove perspective distortions from camera moving in z.

Kalleheikki Kannisto
Senior Graphic Designer

[Kalleheikki Kannisto]

“Watermark” would be the term for it.

Kalleheikki Kannisto
Senior Graphic Designer

[Kalleheikki Kannisto]

You do realize that once you’ve adjusted even just one slider, the slider input values lose their meaning. So you may want to add text fields that give you the final output values for the sliders with the same logic. Unless you’re applying there to the sliders themselves. Even there some rounding would be a good idea.

Kalleheikki Kannisto
Senior Graphic Designer

[Kalleheikki Kannisto]

“Gradient-controlled time remapping” describes the time displacement effect.

https://helpx.adobe.com/after-effects/using/time-effects.html#time_displacement_effect

Considering it will look at the full frames that actually exist in the footage rather than trying to recreate in-between motion, it will not exactly be rolling shutter effect. The time displacement needs to be several frames to create a proper result, so it is more of a slit-scan effect.

Rolling shutter would be motion that occurs in less than one frame. You could conceivably achieve a rolling shutter type effect if you generated additional footage between frames with pixel blend.

Kalleheikki Kannisto
Senior Graphic Designer

[Kalleheikki Kannisto]

Option 1: Make the “magical ball” a 3D layer. If need be, set it to auto-orient to camera.

Option 2: Use an expression that converts 3D position to 2D screen position. You should be able to find it by searching in this or in the expression forum.

Kalleheikki Kannisto
Senior Graphic Designer

[Kalleheikki Kannisto]

Since it is recorded from the back of the room, you will mostly want to take out things rather than add them. Here’s what I would do:

1) Normalization. Bring the levels up to optimum level, as close to maximum as possible without clipping
2) Noise reduction. Being far from the sound source, the signal-to-noise ratio is probably not ideal. Some light noise reduction improves that
3) Compression. Even out the levels some so that there’s less difference between the quietest and loudest sounds
4) Equalization. Recording from back of the room will skew the sound towards bass as well as reverb. Can’t really do much about reverb, but you can probably bring down the bass (which gets emphasized in the reverb) and bring up the vocal frequencies. Check out if a suitable preset for this exists
5) Stereo enhancement. The method depends on whether you have mono or stereo recording. I don’t recall the exact options you have in Audition (I primarily use Cubase), but for stereo something like “stereo enhancer” for mono source “mono to stereo”
5A) Additional Stereo enhancement: You don’t want to add reverb as you will already have more than usual recording from back of room. To further enhance stereo separation you could use different equalization for left and right channels to emphasize different instrument ranges in the stereo field

Kalleheikki Kannisto
Senior Graphic Designer