Andrew Somers
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The video you uploaded does not jitter on my MacBook at all. It’s smooth.
You might have some issue with your computer setup. What are the refresh rate settings of your computer monitor?
Andrew Somers
VFX & Title Supervisor
https://www.GeneralTitles.com -
Hi Aaron, just FYI, Prores 422 is NOT the “professional” way to shoot green or blue screen. Green and blue screen needs to be shot Prores 4444 (or other format that retains full color resolution).
With 422, the COLOR information is HALF the resolution of the luminance information. This is fine for most things, but TERRIBLE for pulling a clean key.
The best choice for AE is the Red Giant Key Suite which includes Primatte. But Ultimatte (only available in Nuke) is a better choice IMO.
To help you with what you have: Don’t try and key everything inside the keying plugin. Try multiple layers, one to generate the alpha, one to remove spill, etc. On the alpha layers you can use the LEVELS control on the alpha to adjust gamma (which alters the edge) and also using BLUR to affect the edge. I discuss “Gamma Blur” in this article.
ALSO, you might find working in 32 bit linear light helps.
Andrew Somers
VFX & Title Supervisor
https://www.GeneralTitles.com -
After Effects is not really a vector oriented tool. Bodymovin’ is really just able to take basic keyframe animations of shape layers, and convert those shapes to vectors as far as I can tell. AE does not have its own method of “rendering” to a vector. Moreover the effects in AE are focused on generating raster images, in particular the displacement map effect you are using displaces pixels, not vectors.
I happened upon this tutorial, which shows you how to animate shape layers, and perhaps that might be useful to you:
https://www.aetipsandtricks.com/motion-graphics/create-this-easy-liquid-vector-animation/Andrew Somers
VFX & Title Supervisor
https://www.GeneralTitles.com -
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I looked at his setup, pretty clever.
I’ll mention that on layer 3, “2) Fast Blur = 50 / blur the stripes” I think he meant to say that fast blur should be set to horizontal only, otherwise the entire layer would not have “lines”.
ALSO, you could add a displacement effect to actually make the image skew per the lines, driven from the layer 3 noise.
Andrew Somers
VFX & Title Supervisor
https://www.GeneralTitles.com -
JERRY SAID: My understanding is they just use a generic sRGB profile to display the mp4
They don’t use any profile AT ALL.
A “profile” implies color management, and video is normally NOT color managed. Video is normally “rendered with a specific display target”.
What is color management: Color management is a process where ICC color profiles are used to convert image date from one color space to another color space, using either a “connection color space” or a “device link”.
What is rendering for a specific target: This means the image data is rendered in such a way that when played back through a specific target device without further manipulation, it looks as intended. A “specific target device” means an sRGB monitor, or a Rec886 monitor, etc.
When you work with color management turned off, then you are de-facto working to render to a specific target — this means that your display monitor must be of the same target that is your render intent. You chose an sRGB monitor, so that *particular* sRGB monitor becomes your render target. Ideally you have used a hardware profiling device to create a system profile specific for that monitor so that it is as close to the baseline sRGB target as possible.
After Effects default for import of non-tagged images is sRGB. This can be changed in the “interpretations rules.txt” file.
Some other things I want to clear up: Just because your animation movs are untagged does NOT mean they have no color space — they certainly do!! They have a gamma curve and look the way they do based on the color primaries of your target.
Also: sRGB and Rec709 have identical whitepoint and color primaries. The ONLY difference is the transfer curve (aka gamma). Rec601 and Rec709 have identical transfer curves and whitepoint, but they have very slightly different color primaries (slight enough that it is common for Rec601 to simply be interpreted as Rec709).
As for your streaming encoder assuming any particular profile: is it CHANGING the look on output? What encoder are you using?
Andrew Somers
VFX & Title Supervisor
https://www.GeneralTitles.com -
JERRY SAID:. But I’m not talking about my monitors. If I use a color meter on the receptionist’s monitor, I’ll get the same values for the css across browsers. For example, the grey around this reply box on Cow is #E7E7E7. I don’t understand why I get different values for the video across browsers.
Hi Jerry, before I respond to your newest post I wanted to address this older post.
The “digital color meter” in the Mac Utilities only shows you the RGB values of a particular pixel in a file. It does NOT show you how a particular monitor is going to display that pixel. “Digital Color Meter app” show you system values NOT display values.
This is because monitors have their own calibration (and hopefully a profile, but not always) that tells them how to display a particular set of RGB values. The computer SYSTEM might present a pixel value of #1423AB, but how a particular monitor interprets that is GOING TO BE DIFFERENT based on that monitor’s CALIBRATION and that monitor’s COLOR PROFILE.
You have no control over how someone adjusts their monitor, nor if they even bother to calibrate or profile it. properly, and most don’t. This is why the sRGB standard exists. It was developed to provide a “baseline” standard calibration target and profile for systems and monitors to abide by. Even so, compliance is “voluntary” on the part of manufacturers and users. At “defaults” (default monitor settings, default profile, etc) everthing is “supposed” to match sRGB.
BUT THEY DON’T for a variety of reasons.
Various reasons display color space does not match sRGB exactly:
1) Ambient light conditions. The color temperature and brightness of the ambient light will affect the perception of contrast, brightness, and color of the monitor.2) Contrast/brightness setting on monitor. The user’s settings of contrast and brightness will NOT be taken into account by the monitor PROFILE being used in the computer unless the monitor is profiled by a hardware profiling device like the XRite i1 Display Pro.
3) Profile used in the computer for a given monitor. The monitor profile is how the computer and graphics card interpret how a particular set of RGB values are to be displayed on a particular monitor. They *mainly * applies to color managed environments, otherwise it is just a generic set of curves/values that may or may not match a given monitor.
4) Monitor inefficiencies. A given monitor is not necessarily even capable of rendering the complete gamut of sRGB. Some cheaper monitors are only 6 bit per color channel for instance. Some monitors are tweaked to look a “Certain way” for marketing purposes (the same way a TV store cranks the brightness and contrast of all their sets). Consider for instance the glass screen Macs — those are typically setup with a much deeper contrast that spec sRGB.
Andrew Somers
VFX & Title Supervisor
https://www.GeneralTitles.com -
Yes, “Preserve RGB” is a feature in AE. Media Encoder is more about rendering final compressed video for distribution or batch transcoding. Ive never considered using it for image sequences.
Andrew Somers
VFX & Title Supervisor
https://www.GeneralTitles.com -
Hi Nick,
With 8 and 16 bit Tiffs, AE is normally going to put a gamma curve on them (unless you select “preserve RGB”). 32 Bit Tiffs are float, and will keep the linear gamma.
Remember:
Integer -> gamma encoded
float -> linearYou can output to 16 bit EXR, where AE will not add a gamma curve. Any integer output format AE will try and gamma encode relative to the working profile unless you select preserve RGB. But don’t select Preserve RGB – your highlights will be severely clipped.
Andrew Somers
VFX & Title Supervisor
https://www.GeneralTitles.com