Light as motion path

hurt my hand -- no caps. anyway, i've searched the forums, searched the knowledge base even searched the manual . can't find a how-to on this. it seems to be something everybody takes for granted. is there a tutorial or something...

Actually, "Motion Paths" and light emitters are two completely different things in Particular, so it all depends on what you are trying to achieve. For a classical trail, that fades off after a while, you'd indeed use an emitter (Velocity at zero, Opacity over Life and Color over Life). In that case it is important to match the names. Either make your light's name start with "Emitter" or change whatever is the name match string in the "Options" panel of Particular. Motion Paths on the other hand are available in the Physics section of the plugin under the Air model and require the light to be named "Motion Path", followed by a number. There is no option to change the match string for this.
Mylenium

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Using Light as Motion Path for Trapcode Particular

Hi,
I am trying to make an animation for a project, but I cannot figure out some things. I am trying to create the effect that a person is throwing money out the back of a car. I have the live shot of the person in the car, but I cannot get the money to behave how I want it to. I am trying to use the Trapcode Particular, but I can't get the particles to follow any motion path. When I set the settings to motion path, it prompts me to create a light. I create a light, but can't figure out how to make that light have an actual path rather than simply being a spot light. Please help! I'm sorry if I don't make any sense, please ask me to clarify if you need it.
Nicole

KWNWY wrote:
I am trying to use the Trapcode Particular, but I can't get the particles to follow any motion path. ...
Because you are doing it all wrong! If you wanted to use the Motion Path option in the Air physics model, your light would have to be exactly named like that - Motion Path 01. It's not what you want, though. I'm 100% certain of that. You are looking to create a conventional light emitter, which is a whole different thing. For that, your light should be named Emitter (or whatever other prefix you define in the plug-ins Options/ Settings panel). Then you must set the emitter type to Light. If you use spot lights and want your money to emit directionally, you need to set the emitter to Directional as well. Apart from that, Particular will use the light's color, cone angle and intensity to colorize and eject the particles. After that, you can animate the light in 3D space to whatever you need it to do.
Mylenium

I cannot see the yellow motion path in the composition window

Yesterday the motion path was visible after unchecking and rechecking the motion path box in view options. But today it's not visible after trying several times the same thing. I'm trying to animate text using a path animation preset. I'm using an Imac with 24 gigs of ram and After Effects CC.
I am very new to this program so I could be missing something very simple. Please help if you can.
Thanks,
Surya Mayee

You may have pressed Ctrl/Cmnd + Shift + H and hidden all handles. Try resetting your workspace. Give us a screenshot of the whole project and don't scale it down. You can use this forum to upload the image by clicking on the camera icon. If the upload button does not light up then close the window and try again. Sometimes the upload window is buggy in Safari.
If you are new plese go through these 3 basic tutorials: AE Basics

Motion paths not wholly visible

I'm trying to simply move a solid with a motion path. I copy/pasted a mask path into the Position property of the solid layer.
Initially everything looks right after I paste the path -- however if I move the position keyframes apart (to make the motion slower) the motion path is no longer visible from beginning to end. As I scrub the time slider the solid is sliding along the path correctly, however I only see about 20% of the path at any one time. It's almost like the anchor point is providing 'light' and I can only see about 10% of the path in front and behind of my current location.
I don't get it.

> It certainly doesn't help that After Effects help file makes NO mention of it on the motion path pages.
"Show motion path controls"

Particular 2 - orient particles to motion path?

I have a particle system set up using a Light Motion Path to dictate where particles should go. Is there a way to orient the particles to the motion path? (Like arrows following a path). I know Particular 1.5 couldn't do it... wasn't sure about v2.
Is there another way to go about this? (In example 1, I could duplicate a bunch of layers and offset them in time, but example 2 wouldn't be so easy)
Here's how it is now (which is not how I want it)

Excellent! Rock on!

Particular 2.1.1. motion path + obscuration layer

Obscuration layer works fine when i use with particles that are coming from an animated emitter (light with animated path), but not when use the same path as motion path with a still emitter (which is at the same point as the starting point of the motion path). It looks good when i rotate the camera around. The 3d layer is in the middle of the particles, yet it wont obscure.
Am i doing something wrong, or is it just a bug?

Aaargh. *slams fist on the keyboard*
Seems like another one of those "set it to off, then turn it on again and it works fine" behavior Particular is known for.
Close it

How do you add the motion path of a tracking point to a separate clone stamp?

How do you add the motion path of a tracking point to a clone stamp without the clone stamp assuming the same initial/continuous positions of the tracking point?
Is there a way to keep the clone stamp's initial position and then add the path onto it?
I am using the clone stamp to remove unwanted duct tape that was used to keep lights on a wall.

I have spent two days trying to find a solution to this exact same problem. I have seen some overly complex solutions that probably work but trying to figure out the explanations is like trying to understand someone describe drag coefficients of rotary wing aircraft. While I am sure they work, they are way above my comprehension. I wanted an intuitive and straight forward solution for something that shouldn't require some arcane technique to fix.
What I did:
1) I used the Clone Stamp tool to paint over the spot on the wall I wanted to remove.
2) picked a more easily discernible point of reference for Tracking. In my case, I used a poster on the wall.
3) As per the instructions here, https://www.video2brain.com/en/lessons/removing-an-object-with-clone-stamp, I pasted the Attach Point data from the Tracker into Clone -> Transform - > Position
However, that didn't work for me as the object I was painting was not the object I was tracking. The solution from the video was simply moving my cloned spot to the tracked object instead of leaving it where I wanted it. So...
4) I then manually adjusted the Anchor Point of the Clone back to the original spot I wanted to cover.
I played footage and the cloned region successfully moved with the spot I was covering.
This is what I was able to figure out. I'm not an advanced user. I only use After Effects every couple of months when I need to fix minor things in footage, so I've only learned to use what techniques I need for the job at hand. No doubt, experienced users may shake their heads at my simplistic fix. I'm sure my technique would be wholly inadequate for situations far more complex than fixing spots on a gray wall, which is why my eyeballs cross when reading suggestions that seem way more involved than one would expect for something as seemingly minor as this. It's just a spot! It should be super easy to remove, right? Well, that's what I was looking for and that's what I came up with. I hope it helps.

I am trying to use motion tracking to have text follow a section of the background.The text box follows the motion path, but the text just sits there. What am I doing wrong?

I am trying to use motion tracking to have text follow a section of the background.The text box follows the motion path, but the text just sits there. What am I doing wrong?

Motion basically looks at the the source footage and it's timing (in the timing section of the Inspector) when analyzing for tracking. Filters are basically ignored by the tracker. Retiming actions, like time re-mapping, or retiming behaviors that are applied before the tracker should be used by the tracker. Did you change the timing after doing the tracking? If so this would also require you to re-track the shot. Understanding that you found a workaround, describing the effects you applied would help to explain why you ran into problems.
Cheers!

How can I mass move symbols with their motion paths without creating new keyframes?

I want to move a lot of symbols all at once if they are off centered or just need to be moved around to see differenr styles across the document, but I can't seem to move a lot of the symbols at once, only one at a time slexting their motion paths. It's rather annoying when I have items coming in at different times and have to re line everything up one by one if I want to move things even over by 1 px. Every time I slecect all my symbols and try to move them it just creates a new keyframe that they follow. Is there any tool or certian way to select the symbols and/or thier motion paths and move them without creating new key frames?

Hi,
There's no direct way of moving all the symbols/ motion tweens begining at different frames altogether, but the following steps should help you do it -
1. Select a motion path on stage, goto Properties panel > Options menu (top left corner) and enable - Always show Motion Paths.
2. Enable - Edit Multiple Frames option in the Timeline.
3. Adjust the frame-markers in Timeline to show all your symbols, motion paths etc.
4. Now that you see all your symbols and motion paths together, Select-all and Move them together. Or, use Shift + click to selectively select the Motion paths/objects and move them.
Let me know if you have any doubts..
Regards,
Nipun

FCE HD, confused by Motion Path (I want to change the speed of movement)

I am a huge FCE noob, let's get that out of the way. I have also been a member here since May of last year, but for some reason it now shows that this is my first post. (????) Anyway, I have figured out how to use a motion path, including curving the path, but I can't figure out how to alter the speed that a "motion path" video enters, or leaves, the screen.
While I'm here, I also want to learn how to use shapes (as in a circle/triangle/custom shaped border to a video clip) and I have not been able to find that info. I have Lisa Brenneis's "Final Cut Express HD for Mac OS X" book and have not been able to find the answers to these two questions there.
Thanks in advance for your useful help!!
BILL

The first and last keframes can have Ease In/Ease Out applied to smooth the start or stop action.
Clicking between two keframes on a a motion path should give you Bezier Handles. There a four blue dots on them, the inner two will control speed. Dragging an inner dot along the handle either slows or speeds the action.
Al

Tween or Motion path for blank keynote with animated stars?

I create star particle effect from this tutorial: http://www.schoolofflash.com/2008/03/flash-cs3-particle-effect/ and got help from this discussion: http://forums.adobe.com/message/5518425 in order to get what I wanted. My code is:
var starsArray:Array = new Array();
var myTimer:Timer = new Timer(50);
myTimer.addEventListener(TimerEvent.TIMER, addStars);
myTimer.start();
addEventListener(Event.ENTER_FRAME, moveStars);
function addStars(e:TimerEvent):void
          var star:Stars = new Stars();
          star.x = stage.stageWidth / 2;
          star.y = stage.stageHeight / 2;
          star.alpha = Math.random() * .8 + .2;
          star.scaleX = star.scaleY = Math.random() * .8 + .2;
          star.xMovement = Math.random() * 10 - 5;
          star.yMovement = Math.random() * 10 - 5;
          starsArray.push(star);
          addChild(star);
          star.cacheAsBitmap = true;
function moveStars(e:Event):void
          for each (var star:MovieClip in starsArray)
                    star.x += star.xMovement;
                    star.y += star.yMovement;
                    star.alpha -= .01;
                    star.scaleX = star.scaleY -= .01;
                    if (star.scaleX <= 0)
                              kill(star);
function kill(star:MovieClip):void
          starsArray.splice(starsArray.indexOf(star), 1);
          removeChild(star);
However, I wanted to move the star particles around. The problem is that the star isn't on the screen, but is called in the actions in the blank keynote. I don't know what I should do next to get the result. I looked up online for tweens and motion paths but all i see is that they required the star to be right on the screen, I think? I also heard something about the compiled clip but I don't know how I should go about creating one and using it to move around the stars while it's animated with all the actionscript. All I wanted is for the star particles to float around the screen (on a path that I can draw out if possible).....

Each star is created in the addStars function. Its position is set in the first two lines:
     star.x = stage.stageWidth / 2;
     star.y = stage.stageHeight / 2;
So, to move each star to a new location when it appears on the stage, you'll need to change the x and y property values for each star. One simple way to do that is to use that same Math.random() function.
Try changing those first two line to:
          star.x = Math.random() * stage.stageWidth;
          star.y = Math.random() * stage.stageHeight;

FR: Ability to move entire Motion Path (as in After Effects)

If you like this Feature Request, please copy/paste on Adobe's Feature Request page to get your voice heard: www.adobe.com/go/wish
*******Enhancement / FMR*********
Brief title for your desired feature: Ability to move entire Motion Path (as in AE)
How would you like the feature to work?
The same way it currently works in After Effects: ability to move an entire motion path by selecting all of the motion path's keyframes before click-moving one of the selected keyframes in the Canvas/Program Monitor.
Why is this feature important to you?
This feature makes it so much more efficient to move a motion-animated asset to a new location without inadvertently changing the motion path. This tremendous workflow efficiency works wonders in AE and could work equally well in Premiere Pro.

When previewing, make sure that you're using RAM preview to get real-time playback:
http://helpx.adobe.com/after-effects/using/previewing.html#use_ram_preview_to_play_video_a nd_audio
See this regarding the issue with your output file stuttering:
http://forums.adobe.com/thread/684381
Most important, start here to learn the basics:
http://adobe.ly/AE_basics

Errors with interactive pdf containing motion paths

I have created an interactive pdf in indesign with simple motion paths. In the preview in indesign it works perfect, but the animations do not work in the exported pdf. This is created in CS6 and I have the creative suite standard installed.

I have tested with both Acrobat Pro X (10.1.1) and Acrobat Reader XI (11.0.0.). Due to IT restrictions I am unable to use such "transfer files" providers, so I am bit stuck. I have tried to put the different animations in layers and in one layer only, with same results. I am
beginning to think that there are internal restrictions that make this happen

Multiple motion paths in CS5?

Hi-
I'm new to Flash and have a question. I'm creating a Helium atom for my technology class and am trying to get 2 electrons to circle the nucleus. I've successfully created a classic motion path where one electron circles the nucleus. How do I create another (duplicate) motion path for the other. I'm not sure this can be done, hence the question.
Any suggestions for the newbie would be greatly appreciated.
Thanks,
Mark

Select the frames where your motion path is being placed on, right-click and select "Copy Frames" and paste them on a new layer

Motion Path Madness

More specifically, the start and end points of the motion path. They are driving me crazy. Maybe I am overlooking something that is so ridiculously basic I am not finding it, but here's my issue. I've got a motion path on an object. The start point has a position of X: -77, Y: 16. I'd like the end point to be X: - 77, Y: 50, but everytime I try to move the end point, it ends up moving the X axis to something ridiculous like -77.78, clearly and visibly making my path something other than a straight line. Is there a way to get around this? I experience this issue quite a bit and have been unable to successfully find an answer. Perhaps I am just not using the right search terms? Any help would be greatly appreciated.

Hey Q*bert,
Thanks for the tip. I've also found that if you hold the Option key while dragging a point it seems to keep the coordinates at whole numbers. I was getting my problem with the snapping turned on as well, though I wasn't always at the beginning of the timeline when attempting a move.
I haven't been using keyframes just because I haven't really thought about it since getting Motion. The behaviors are just so much nicer to work with and the ability to scale and move them without worrying about the keyframe position is nice.

Light as motion path

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