Posts by felt_tips

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felt_tips Moderator says

Hi every one and felt tip I have a little problem need your help. I have two layers. LayerA and LayerB in different position

LayerA add wiggle expression on it position property.

I want LayerB relative follow LayerA only “Y” dimension.

I can’t figure out how to do this. Thanks Jimmy

Hi Jimmy,

On layer B’s position, put this…

LyrA = thisComp.layer("Layer A");
// the position offset between the layers at time 0
tOffset = thisLayer.position.valueAtTime[0] - LyrA.position.valueAtTime[0]; 
Pos = tOffset + [0, LyrA.position[1]];

Merry Christmas!

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felt_tips Moderator says




Do you have an antivirus installed on your mac? (beware, trick question!)
No.
So how do you know you don’t have any virus/malware? :D
Little Snitch is a great idea.

I’ll second that, although I know a couple of Mac users who are a bit less tech savvy who got a bit freaked out by Little Snitch, because they didn’t know what to do with all those connection alerts that come up when you first install it.

I personally find it good to know how regularly my Mac is connecting to remote sources, and once you’ve got it trained it doesn’t interrupt you too regularly.

I also use Avast anti-virus (although I don’t have it scanning all the time, because of the performance hit) and I use Mac-scan to keep an eye out for any spyware. Regarding Mac viruses. They’re pretty rare. I’ll often intercept PC viruses and trojans being sent to me by email etc., but a Mac actually infected with a Mac virus…. I haven’t witnessed that for about 10 years.

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felt_tips Moderator says


Smart and dumb people use both.
Lol, Felt! You just said that all guys who use PC are not smart, because they can’t use both OS. Nice try, nice try. :D

Let me rephrase that.

Smart people use PC. Dumb people use PC. Smart people use Mac. Dumb people use Mac.

:D

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felt_tips Moderator says

you cannot open files by pressing Enter.
Cmd-O

Also, I am not able to delete files by pressing the Delete key on the keyboard,
Cmd-Backspace

and there is no way to select multiple files and get their properties or their size.
Cmd-Alt-I

I still think that MacOS has been built for less technical people. As a Windows user, you are in no way a loser. It is my opinion that Windows users are smarter than MacOS users.
Oops… Cue flame war.

Should I say about video drivers? About the Search function? About the missing ALT+TAB? About not being able to quit Finder? About the Finder layout which is really weird, unintuitive and hard to use? About the preview pane? About defective font rendering (smoothing) as opposed to Windows? About switching between multiple windows of the same app? About installing the same app multiple times because MacOS cannot detect the current instance? About the hash key positioning? About the CMD/CTRL confusion?

No, no, Cmd-Tab, Cmd-Alt-Esc->Relaunch, Nope, Nope, Nope, Cmd-Tilde, Agreed, Nope, There’s no confusion – They have completely different functions. In that order.

What you’re basically saying, in an opinionated way is that you’re more used to Windows.

They’re both computer operating systems. They have many similarities and some differences. Smart and dumb people use both. Don’t start a flame war.

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felt_tips Moderator says

Hi. A simple question regarding the Checkbox expression control.

Is there a way to have 1 checkbox in say ‘Composition A’ have the ability to turn on or off a checkbox in another composition? ‘say Composition B’?

What would be the expression if possible and where would you place it?

Thanks. Craig.

You’d place it on the checkbox in Comp B…

comp("Composition A').layer("Whatever Layer").effect("The Checkbox Effect's Name")(1).value;
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felt_tips Moderator says

Hey guys, recently i moved from a PC (Win8) to a splendid Macbook Pro 15’’ Retina + Thunderbolt display, and can i say it’s an amazing piece of hardware. Unfortunately though i cannot say much about MacOS, i feel like productivity has dropped and mostly everything i do takes longer and it’s complicated. The UI is gorgeous, don’t get me wrong, for navigation, music, movies, built in unix terminal etc. seems great, however for work it doesn’t seem so.

Give it some time, it’s a question of what you’re used to. I have exactly the same reaction when I have to work on Windows. You just need to develop a slightly different way of working on Mac OS. If you try to continue to work in a Windows way on Mac OS, you’ll have problems. Over time, you’ll learn all the little tricks and shortcuts that get you around the OS quickly.

One of my favourites is Cmd+Click on the name of the window and the path back up to the root appears in a drop-down. Pressing the space bar to open selected folders is pretty good, pressing the space bar on selected files will preview them. Spring loading in general is pretty useful (set it to short). Also good is in Finder, go to View-> Show Status Bar. This brings up a bar at the bottom of the window with an icon size slider, so you can use your windows as a very good image preview. To move an item, drag it somewhere else. To copy it, hold down alt. To make an alias (shortcut) hold down Cmd+alt while you drag. To close all open windows, hold down alt while you click the close button. etc. There are thousands.

And you know you can turn the hot corners on and off in System Settings, right? I keep just one, to show the desktop…. very useful.

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felt_tips Moderator says

Bending is not the only problem with effects capable to work in 8-bit only. If you work in 32-bit with brightness values grater than 1. After applying a 8-bit effect you will get brightness values clipped to 1. It ruins all the light effects such as glow, motion blur of bright lights etc. If 16-bit is Heaven, 32-bit is the Outer Space! )

There’s not much difference between working in 16 bit and 8 bit. You can work in them interchangeably (i.e. 8 bit for working, 16 for rendering). The main difference is that effects like banding that result from working in a reduced colour space are eliminated in 16 bit. If they’re below a perceiveable limit, then 8 bit’s fine.

32 bit is a different ball game. I tend to not work in 32 bit unless I’m very specifically doing something with additive light – and then only on the compositions that need it.

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felt_tips Moderator says

Just read that a Mac version is on the way. I’ve actually been hearing that since 2007, but somehow from Black Magic I believe it.

I for one will be very happy to go back to node based VFX compositing. Much as I love After Effects, the timeline / pre-comp structure doesn’t lend itself well to complex compositing jobs.

The reason I’ve been using Ae at all for VFX compositing is that after Shake’s discontinuation (that I used to use for most of my compositing) there was no serious node-based option available that didn’t cost an arm and a leg. With Nuke at over $4000 plus expensive service contracts and Flame even more, it was out of the question for anything but big facilities. At the time, to go with Nuke would have meant that I’d have been very limited in terms of the type of jobs I’d get, and in the types of companies I’d work at, so I chose to go with Ae. You can still do great compositing work in Ae… it’s just harder to visualize the overall effects flow and structure, and much harder to move quickly back and forth between different points in the effect tree.

The release of a free / affordable Fusion should change all that. With the free version, the pool of people who are able to use the tool should be enormous.

Whether the pricing model is sustainable is a big question. I guess they’re going for the Apple idea of “buy our hardware and get the software thrown in”. Be interesting to see how Nuke reacts.

I don’t think After Effects is much in danger. It’s part of the whole Adobe package anyway and has a quite different feature emphasis. (at least since I last saw Fusion in action)

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felt_tips Moderator says




from a timelapse video, probably next to impossible, sorry.
OK no problem, thought I would ask. :D

Nah… not impossible.

Try Twixtor… by slowing the whole thing down, you’ll make the shaky movement less obvious.

http://www.revisionfx.com/products/twixtor/

You could also use a frame blending effect, such as After Effects “Wide Time effect”. That will create some blurring, but the erratic movement will start to disappear, because each frame will be a blend of many frames.

After Effects also has its own Optical Flow based frame blending (a bit like Twixtor, only not so good). You can use this, simply by time-stretching the layer and setting the frame blending switch for the layer to the frame-interpolation one, and turning frame blending on for the layer.

These techniques however are based on the fact that your shot here is essentially static. If you had a moving shot where you wanted to get rid of the quick moving artefacts, but keep the overall movement (at its original speed), it’s not impossible, but it gets a LOT more complicated. How complicated depends on the type of camera movement. For some kind of movements, it is indeed almost impossible without days or weeks of manual retouching work.
Thanks, that’s really useful. Those are the kinds of things I imagined would be possible. I guess the “Wide Time effect” is also a way of creating smoother slow motion footage?

Kind of. It actually keeps the footage at its original speed, but blends frames from either side of the current time. It makes the footage smoother and feel slower, but of course, it’s very unnaturally motion blurred. It’s like having a motion blur that’s significantly longer than the exposure time of a frame.

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felt_tips Moderator says


from a timelapse video, probably next to impossible, sorry.
OK no problem, thought I would ask. :D

Nah… not impossible.

Try Twixtor… by slowing the whole thing down, you’ll make the shaky movement less obvious.

http://www.revisionfx.com/products/twixtor/

You could also use a frame blending effect, such as After Effects “Wide Time effect”. That will create some blurring, but the erratic movement will start to disappear, because each frame will be a blend of many frames.

After Effects also has its own Optical Flow based frame blending (a bit like Twixtor, only not so good). You can use this, simply by time-stretching the layer and setting the frame blending switch for the layer to the frame-interpolation one, and turning frame blending on for the layer.

These techniques however are based on the fact that your shot here is essentially static. If you had a moving shot where you wanted to get rid of the quick moving artefacts, but keep the overall movement (at its original speed), it’s not impossible, but it gets a LOT more complicated. How complicated depends on the type of camera movement. For some kind of movements, it is indeed almost impossible without days or weeks of manual retouching work.

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