To refer to a first keyframe in an animation loop

Hi, I have an animation loop with two keyframes, I use loopOutDuration to repeat this animation for the duration of the model. I am wanting however to randomize the starting position of the first keyframe on the axis of the x. I wrote the term for this, but it applies to a distribution at random at EACH FRAME of the animation, rather than at the beginning (IMAGE 1) starting point and stick to this position of x with a constant value.

The only solution I can think of right now is to note the length of the loop, allowing this time elapse before before applying a momentary position x change, however, I think that on a frame when I call value it will recover to what the value of the key frame is rather than the value of the expression. I hope it is clear enough...

TLDR;

I want an expression to change the value of a position of x on the two keyframes. What gives a random but constant value for the duration of a loop.

I would be better off ditching keyframes entirely and make the entire animation via expressions? Or is it possible to reference in an expression?

You can try this:

xOffsetMin = -500;
xOffsetMax = 500;
//===========================

t1 = key(1).time;
t2 = key(numKeys).time;
t = time-t1;
dur = t2-t1+thisComp.frameDuration;
n = Math.floor(t/dur);
pos = valueAtTime(time-n*dur);
seedRandom(n, true);
pos[0] += random(xOffsetMin , xOffsetMax);
pos;

Xavier

Tags: After Effects

Similar Questions

  • First clip using Adobe animation character?

    Hi all

    I'm a Swedish graphic designer and artist who has just finished the video for my latest song. When I saw for the first time Adobe character animation, I decided that's what I wanted to use. This is the story of a lonely little robot...
    Animations of characters in CA Preview 1 and the rest was made in After Effects. Robot parts and backgrounds for creative market. / Johan Mauritzson

    Thank you!  I recorded it back many times, sing, don't talk. It's a little sometimes, but overall it worked fine. :-)

  • avoid problems in the first keyframe

    Hello world

    Recently, I did my first video with first. I had a problem when I tried to open a project saved in connection with keyframes. I searched a bit and found that she was bound with the language of the saved to the project so instead use the appropriate form between the figures of the keyframe (z, z, z), the project was recorded using only points (z.z.z.).

    As my project had a few easy keyframes, I decided that redo it and video processing was easier, so that's what I did.

    However, I'm worried about my next project, I pretend that they are more complex and convoluted than this one. So my question is, is it possible to avoid this problem of format of economy? Configure the program so I did not worry about more?

    I use Windows 7 (x 64) and Premiere Pro CS6.

    Thank you much in advance.

    Hi Yo1980,

    I'm sorry. iCloud is what is causing the problem, that everything was fine until a recent update from Apple. We know about it, but are still working on a fix. For the moment, you may need to uninstall it, or run it on another computer or device.

    Thank you

    Kevin

  • Menu REF ignore the first underscore character

    There are characters that are not valid in a custom ItemName LabVIEW?

    If you create an ItemName like 'One_Two_Three' in a file of numbers, or even at the top level, it appears wrong.

    Name of goods: One_Two_Three

    Displayed as: OneTwo_Three

    It seems that the first "underscore" is cut.  When it actually looks that the T (in two) is underlined.

    This is expected behavior?

    I was working on a code to view a recently used list of files in the file menu.  I was hoping to just read the file name (as ItemNames), but the items with an original underscore cause this error.  I guess that there are of the workarounds where I could simply replace all the "_" with a few other characters, but that seems to be more work than necessary.

    Thank you

    PH

    Yes, this is the expected behavior.

    Using the character of underscore before a menu item defines this letter to be a shortcut for when you use the keyboard.  Thus, it defines the T as a shortcut to this line of menu.  Consult the regular menu of LabVIEW and you will see many with the underlined menu items.

    Is there a reason why you want to use an underscore character in your menu?  It's unusual and probably not recommended by some Microsoft UI guidelines somewhere.

    You can use a double underscore for the first character.  Then it appears as a simple underscore character.  But then, who will set underscore as a shortcut key.  Or you can set the letter O, n or e as a shortcut, then will release as _T to be represented with a underscore and not defined as a shortcut T.

  • * Flash animation loop but going back to the first image {want to hold on to the last image}

    I came across this article in loop animations = http://www.quip.net/blog/2006/flash/how-to-loop-three-times

    I am a novice with flash and just try to connect to some place ads and make it work for the first time.

    Everything worked for me in the article... the only thing I wanted to do, but you have not found that the answer to how do to stop the animation on the last frame after a loop is completed, instead of automatically return to the first image is?

    What is the most easy/most effective way for this?

    The shutdown script does not work... still goes back to the first image.

    For all my flash ads, imported FLV video... so I don't know if this is a feature for flv / video that auto-rewinds to first frame...

    Thank you very much, really appreciate any idea on it.

    The sooner you can take a minute to return best

    you add your video in the timeline.

    Add a stop() in the correct location works for me: create a new layer, insert a keyframe in this layer to the last video image and add a stop() in Control Panel actions.

  • First display a Flash animation, and then in the site

    I am a novice in Flash - but, I have created a Flash movie and want it to be the first thing that appears when people visit my site, which is set up in GoLive. How can I get my flash animation to play first and then automatically switch when it ends to my homepage index.html? I don't want visitors to have to click on a button, hyperlink, but smooth transition more to my site. Thank you very much for all the advice!

    Thank you so much, Urami. I removed the spaces between the last two words of my movie folder - and now it works! I can't think of any reason I would have thought that could cause this problem... You are a genius! And I'm really, really grateful! Thank you so so much!

    Be well.

    Sarah.

  • Set keyframe as model animations

    Hello

    I'm new to After Effects and I looked in the docs for something like that, but if it exists, I just blank on searching for it.

    I would like a way to define a set of animation effects that can be applied to any layer of some sort of template, ideally what it does not copy animations but simply apply all of the animation and the effects of a definition that can be edited after that animations have been applied.

    What I'm trying to do is to apply the same effect to multiple layers, but I'm also playing with it to see what works and what looks good, so I wish I could just twist a single animation and have all the layers to reflect the changes, the best I could find at the moment is copy and paste the relevant animations across to all layers but it's a huge pain already.

    See you soon

    Dave

    If you want to connect the properties, simply use the pickwhip expressions. To save the animation as well as of the effects and of the later application, simply use preset animations.

    Mylenium

  • How can I change the parts of an object in motion?

    I have a character who is running, and I would change her outfit at some point without redoing the keyframing. I have two outfits made in illustrator and tried alt-do drag the 2nd outfit on a duplicate of the 1st precomp animation but instead of sticking up stick everywhere wherever he wants in the framework.

    I'm looking for this exact purpose:

    Abhishek Shankar - HCL (Cup Director) on Vimeo

    Which layer you are trying to replace?

    Simply slide the replacement layer to the timeline above the existing animation layer. The value of ICT for the beginning of the animation, select the replacement layer, hold down the SHIFT key and the parent of the new layer to the original. If you need to change the pants and shirt, then you will need to do the same thing with both of these elements. Now the SHIFT key when parenting blew up the child, the replacement layer, at the current position of the layer parent so no programming should be required. If you start the scale or rotation then either you adjust the scale and rotation of game or you will need to use the duplicate layer I want to replace the thing and then replace the images with the new layer. This can cause problems if there are things related to the duplicated layer, you may need to be a little creative. I can't say that if I see the layer that you want to replace by it all changed properties revealed in the first keyframe in the animation of this layer. For example, if you want to replace the torso layer then select this layer, press twice the key U, then show me a screenshot which includes all the properties that are modified for this layer.

    All this may be easier if you simply duplicate the composition in the project Panel, and then change the layer source footage in the double. Then you can just put the two compositions in a master model and make a transition between them.

  • I can't open the first on my computer.

    A window tells me an error. c:cloudroom/release/2014.09/shared/mediacore/mediafoundation/API/in. Then the program closes. Why?

    Hello Jimmy,.

    This issue was already discussed please refer following thread: first CC2014.2 pro hangs at startup: c:\cloudroom\releases\2014.09\shared\adobe\mediacore\mediafoundation\api\inc\Keyframe/Key frame.h - 146

    Thanks and greetings

    Bianka Attre

  • Photoshop CS6 says-"Could not complete your request because of a program error" on adding keyframes

    Greetings,

    I use Adobe Photoshop CS6 to edit a video. This is a file created in the past that contains small animations such as opacity and some transformations. The last time that I finished working with the file, everything was perfect and has worked flawlessly.

    I recently decided to open the file again to add an animated layer/chart. I added a text layer with a long string of numbers and a layer mask. The mask is not related to the text.

    When I animate the layer using 'turn' (the moving text, from one side to the other), a keyframe is created. The problem is that I can't scrub the timeline for a time before the last keyframe (including the first keyframe). When I try to do so, or when I simply click on the button to the beginning of the video, I get this error: "Could not complete your request because of a program error."

    I tried to remove a lot of the old layers to get rid of their animations, in which case it was a problem of resource memory or something and it doesn't work. I closed and restarted the PS, still without success.

    Please help me solve this problem. Thank you and have a nice day.

    I FIXED IT :)

    I placed the text layer in its own folder. I then applied the layer mask in the folder, not the layer.

    The text layer anime now, the error does not occur.

    This shows that, at least on my system, Photoshop would allow me to animate the text layer if the layer itself had a mask that was not related to her.

    If someone wants to venture guess as to why it happened, don't hesitate. I hope that the situation described above is not necessary a work-around, he must have worked as originally planned.

    Take care and have a nice day.

  • Seting keyframes to move a mask, what are the Red handles, and why can't I move the mask.

    So, I have a mask I want to track manually. I put a keyframe, and then as soon as I move down the clip in time, the handles on the mask all the Red Tower, I can't move anything. What is c.

    I must be in Auto key. If is not very intuitive to manually follow a mask. Can someone explain what I got. When I put a keyframe, it also always affects a red keyframe at the beginning of a clip.

    OK, so if I put on auto and then change the mask a little to set the first keyframe and make a few adjustments it works fine. TEEN Style!

    I guess that's the best solution. Use Auto and adjust as required.

    But for reference, what are the Red handles that is supposed to mean. And is there a tutorial for manual monitoring mask.

    Also how do a mask drawing good hand, when I click on the + curve and make points, then the expanded mask gets all hexagonal... What is happening with that. you have to start with a round mask and add points and tweak from there to make a mask customized with adjustable smooth edges?

    Seems to be the only way I can hack through for now. Again, please to a good tutorial on the masks and the points, I have an account of Linda, if that helps.

  • Problems using keyframes in Speedgrade.

    Hey guys, I use Speedgrade for a few months now with underage girls only poorly, but I finally reached a road block I can't seem to find the answer after google search.

    I have a video clip that was shot with a lens that the opening of the changes you zoom in or zoom out. (Canon 24-70mm L 1: 2. 8 - 5.6 if any curious)

    So suddenly the opening opens two stops then closes 2 stops down as he's leaving CU WS and return to a CU.

    So after seeing a tutorial on how to do it, I applied a "Preset" I saved another clip I colored for use as a primary correction and then to place my first keyframe... Well the viewer went all crazy and settles on the blown white screen or a black screen.

    In case of problem until now:

    I thought I might be because the clip is a multi-cam clip, but I passed first and brought it back with no luck.

    I thought it would be the predefined aspect, which I gave him, even if she's afraid to make an entirely new category for each keyframe, I thought it was worth a shot.

    It seemed to work normally during the major part of the clip, but when I tried the first keyframe of the clip of grade it would spaz out on me once again.

    In conclusion:

    I'd like to think there is just a simple button, I'm not pushing. One thing that is different about my timeline that contrast of video tutorials, it's that when I watch a tutorial and it puts a keyframe is just a picture-unique key, when I put my first keyframe sound automatically a keyframe dynamic (dissolve) related to the first frame of the clip.

    Screenshots

    http://imgur.com/a/tBw5S

    OK... played with keyframes in 2015.0.1 earlier. Keyframes 'introduction' is now a dynamic supposed at the beginning of the clip, click on the first. In other words... go to the bottom of your calendar, click the keyframe button and it immediately puts in place a key-box dynamic link to the first image in this clip. Click the keyframe button again, transforms a static keyframe in the keyframe. Now go down the line and set your next keyframe, it will be the first click link the two.

    The old process (as shown in the tutorial) has created a static keyframe first click and a second click he turned to a dynamic. This was reversed as indicated above.

    I'm on PC and set a number of keyframes up for changes using two eyes and ready simple grade-changes to the departure of opacitity 100% to 0% opacity. Both worked very well, which is not help you if your from is not. It works better for you on the updated version?

    Neil

  • Timeline deals KeyFrames successively or in parallel?

    I'm a little confused about the processing order of the keyframes in the timeline. Based on the API of the timeline document, chronology must process all key frames in the order. However, I created two rectangles 2 images to different keys. Time of the first keyframe is set to 5 seconds, and the time of the second keyframe is set to 10 seconds. I was expecting the first rectangle will start moving for 5 seconds, then the second rectangle will start moving for the rest of 4 seconds. However, it seems that this chronology began two key frames at the same time. Is this the correct behavior? Thank you.

    The following code will be told in time of 5s, the value of rect1.x 50.
    The period of execution of the image (from 0s to 5s) key, the value of rect1.x is linearly interpolated his starting initial value (0 in this case) to 50.

    KeyValue xKeyValue1 = new KeyValue(rect1.xProperty(), 50);
    KeyFrame keyFrame1 = new KeyFrame(Duration.millis(5000), xKeyValue1);
    

    The following code will be told in time of 10 seconds, the value of rect2.x will be 100.
    The period of execution of the image (from 0s to 10s) key, the value of x is linearly interpolated his starting initial value (50 in this case) to 100.

    KeyValue xKeyValue2 = new KeyValue(rect2.xProperty(), 100);
    KeyFrame keyFrame2 = new KeyFrame(Duration.millis(10000), xKeyValue2);
    

    Thus, the effect will be that the two rectangles are starting to move at the same time with rect2 moving at half the speed of rect1.

    For rect2 start moving once mobile complete rect1, use two TranslateTransitions in a SequentialTransition.
    http://docs.Oracle.com/JavaFX/2/API/JavaFX/animation/SequentialTransition.html

    You can also use a keyframe to achieve, but I think that using the API of the Transition is clearer.

    If you want to stick to the manipulation of keyframes directly in a single calendar is an example extra keyframe, you could add to make everything appear to move in the order:

    KeyValue xKeyValue3 = new KeyValue(rect2.xProperty(), 50);
    KeyFrame keyFrame3 = new KeyFrame(Duration.millis(5000), xKeyValue3);
    

    The keyframe above would prevent the rect2 move anywhere for the first five seconds.

    You can also set several timelines instead of one. In the first scenario, just move the first rectangle, then during the earlier chronology full (timeline.setOnFinished ()), play the second timeline that simply moves the second rectangle.

    But overal, l. using Transitions instead of keyframes and timelines directly is probably the best solution.

  • How to track the level of Keyframe Audio digitally

    Hello

    I want to change the volume of a track of time time by submitting digital values for the volume of a track at a time B and B and let first edit of a track volume accordingly during playback. Basically, how I update the value of the key frame digitally? How this is done?

    http://files.2he.com/uploads2/2013_08_17_18_15_18.jpg

    When I put the time in the timeline slider and adjust the volume of the track in the audio mixer Panel and then click on the diamond add keyframe at the head of the trail, then it creates a new keyframe, but not with the value of the volume in Control Panel mixer audio-track. Unless it was the very first keyframe, I created.

    I don't want to edit the keyframes of volume by dragging, which does not have enough accurate for not even approaching the target volume control.

    I don't want to save live track-cursor change in the Audio Mixer Panel.

    At http://help.adobe.com/en_US/premierepro/cs/using/WS1c9bc5c2e465a58a91cf0b1038518aef7-7f35a .html I saw "Adjust" tracking volume with keyframes, but has not been able to find a «...» " Follow > Volume on the menu drop-down at the top of the element in the audio track ', seems that fits the volume of clip again and don't not to track the volume.

    Well, you can't be happy with my answer, but it's the only way I know to enter the level by typing a number.

    If you set mixer track for this particular to 'Write' track and enter the desired number, let's say-6 dB, then you press the playback on the timeline, when you stop playback, key frames will have been defined at this level. You can the left and right arrows to do the job also.

    You find that you want to move keyframes after doing this and be careful to not crush the other keyframes, but it does not work.

  • I guess I'll call it a keyframe ghost

    I use AE CS6 with Mac OS x 10.6.8.

    I use a whole bunch of different mixed media of photoshop files and various video to key.

    I'm editing a voice hidden and standing in front of a very simple. Composition PSD background.

    IN this composition, I am animating one of the layers to soar and STOP beside where is the muse.  STAY for 2 seconds, then FLY AWAY.

    I had NO problems withany stage of this... EXCEPT THE PART OF THE JUDGMENT.

    I put a keyframe where I want the item to come out and stop.  She comes out and stops PERFECTLY.  GRAND... I'll 2seconds to the bottom of the timeline and put another keyframe (I even tried by copying and pasting the first keyframe to ensure values.)

    THIS IS WHERE ALL THIS GOES TO HELL!

    My element will actually be the point on two keyframes.  BUT, for NO REASON, now for only 2 seconds where I want to STOP it, it makes a very little bit 'here pivot.

    I tried to do in the graph Editor, and I even watch it happen.  The graphics editor shows complete stop.  Then I will add the next keyframe, and instead of a straight line (as he should), he throws in a curve.

    its honestly like a KEYFRAME GHOST in the middle of these two seconds ago.  This is when I apply this 2nd keyframe... Help!

    Why my layer (camera) back and forth between keyframes of equal value?

    Mylenium

Maybe you are looking for

  • Keyboard stutter

    I have an iMac 27 inches, end of 2013 OS10.11.6 running. Several months ago Istarted to meet a keyboard stutter. It would occur when coming out of sleep. You press a button any repeat nine times. I could close the keyboard (Apple bluetooth) and every

  • How can I return emails to the IMAP folders offline?

    We recently moved to a new host and our host failed to connect our main area for the new hosting space (more into a redirect there) so our e-mail server continued to operate on the former host until today. We connected the field to the new host, and

  • Satellite Pro A300 - touchpad failed after BIOS update

    After that good BIOS update 2.00 to 2.10 / suggest by ALERT TEMPRO - http://support1.toshiba-tro.de/tedd-files2/0/bios-20091125132031.zip/ the touchpad of my Satellite Pro A300 - GR 1 stopped working.He appears under the name hidden in Device Manager

  • Satellite A300 - scroll function does not work

    Hello Anything but my scroll on my touchpad suddenly works he ended work anymore. Can someone tell me what is the problem?

  • Backup and restore Apk

    Hello guys,. I've recently updated 4.4.4 5.02. All right, except that I made my backup "backup and restore" app on my Z2 4.4.4. Now the problem is, 5.02 B & R specific app that my file is now inconsistent. I searched Google for any work around and tr