check your adaptive resolution settings in the preferences.
I can only reduce the impact of the behaviour slightly by setting the adaptive resolution to 1/2 instead of 1/8.
What I would like to do is set it to 1/1 ... or "none" ... or something.
This doesn't appear to be possible.
And do you know how I can get rid of these flickery wire line things ?
Thanks for taking time to respond.
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What flickery wire line things? Can you post a screenshot?
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If you don't like Adaptive Resolution, turn it off, and just set your Fast Previews setting to Off (Final Quality):
The flickery wireline overlay stuff when moving the timeline thumb is impossible to screen grab as it is only there for a fraction of a second from time to time when apparently substituting wireframes for layers when it can't keep up. So I had to shoot a short section of low res video on my camera to try and capture it. It's not great but it gives an idea of what's happening.
The roll-over layer overlays are easier because I can leave the cursor over a layer in the timeline to hold the wireline edges on screen in the composition display. The image I've upoaded is a composite of 3 different ones that occur on the same composition all indicating position and edges of layers.
Thanks Todd -
Yes - if I could find the switch I would turn it off !
The article you directed me to pointed me to the preferences panel shown in this shot
(which I have already previously visited many times in pursuit of the solution to this) ...
... can you tell me where it alows me to switch off adaptive resolution please ?
As far as I can see it allows me only some options of degree - not none at all.
Am I looking at the wrong thing ?
Read the section on the page I pointed you to about choosing a Fast Previews mode. Choose the setting called Off (Final Quality).
Thanks Todd - I've found the Fast previews menu buried in with what always used to just have the quality settings.
I take your implied criticism in the mail I got with an amused grin.
You said ... " After Effects is a very complex program. This is an example of where reading the documentation before beginning can prevent a lot of frustration. "
I have actually been reading After Effects documentation and using various versions of the software since COSA first released it in something like 1994 -ish.
It's entirely possible I suppose that you weren't even born then and weren't aware that Adobe didn't originate it - just bought it.
The real problem here is not a matter of not reading the documentation, it's that things that worked brilliantly get designed out for no apparently logical reason ... like the animation spline graphs for each channel that were amazingly fast and intuitive to use ... now I have to search for a common "graph" button that if I don't remember to switch each one off again in it's wn channel could end up containing every animation spline in the project on top of each other ! ... BRILLIANT !
Not everything that has worked well for a while needs chucking away just because it's old.
Nevertheless I am very grateful for your having taken the time to help me out.
>Not everything that has worked well for a while needs chucking away just because it's old.
We don't tend to "chuck things away because they're old".
In the case of the Graph Editor, the great majority of folks prefer the new design; it was actually suggested by many users when we put it in in 2004 (and, yes, I've been working on After Effects longer than that).
In the case of EI format, we got zero people in our prerelease program of hundreds of users who said that they needed to export it (when we asked in 2009). We did keep import because one person said that he needed that.
Maintaining features is itself a lot of work when going from one OS to the next or one chip architecture to the next. If no one is using something, then taking it away makes the application easier to maintain and frees resources up for other things.
BTW, one of the things that you might find valuable is reading through the lists of changes for the several versions between your upgrades.
Here are the relevant lists for changes made in CS4, CS5, CS5.5, CS6, and the next version: