View Profile
View Forum Posts
Private Message
Im doing a frame-by-frame animation, Im replacing the trajectory of a ball with another object, so it requires precise frame by frame intervention to put the object on top of the ball and make it look realistic.
I did the whole thing, took me like 5 hours, but when I did the final playback Camtasia does it so jerky and even if frame by frame the object is correctly placed above the ball all the time, during playback it moves around a bit and the ball appears. I thought well, maybe it can't keep up in real time, let's render. But same thing happens! My god, I wasted so much time in this.
What can I do? I already did the whole animation in Camtasia and i have no idea how to use other programs.
Something i've done is record the preview screen frame by frame while I go frame by frame manually. I have this in avi format, what I would need is a way to delete all diferent frames. Can this be done? I hope it makes sense.
+ Reply to Thread
Results 1 to 19 of 19
-
-
Maybe it's me, but I am not really clear on your entire procedure.
What other software do you have access to?
What you are attempting to do just screams out Motion Tracking or 3D Motion Tracking. After Effects CS6 up to the current version has this capability built-in. There are other packages that can handle motion tracking and I am sure that if this is an avenue you wish to pursue, others will chime in.
If you saved the individual frames where you simply placed the object over the ball, then it may be just a matter of placing the frames, in the order of 1st, 2nd, 3rd and so on, on the timeline of a video editing software, and then save a video. Again, other software (maybe freeware) may be able to create video from individual frames.
Hope this helps
Brainiac -
What I want to do is the following, for example take this clip:
http://www.youtube.com/watch?v=6tkc70ADkc4
I want to replace the ball with an object, any object (of similar dimensions). I did this in Camtasia, simply put on top of the basket ball the object I want to replace the ball with, and then animate each frame (yes I went frame by frame, I don't know if this can be done automatically with other programs...).
The problem is when I play the video (playback or rendered) the object is jerky in some frames and goes out of place and reveals the ball.
I have After Effects but only trial for now. Got no idea how to use it tho. -
I suspect you saved as uncompressed RGB and your hard drive isn't fast enough to play the video in realtime. Use a compression codec. That will reduce the size of the video to something manageable.
-
Try what jagabo suggested, but if the ball is fully covered within camtasia in the preview, but in some frames it's not covered in the export then something very buggy is going on (ie you're getting messed up frames, not just jerky playback)
If I understand you correctly, you now want to delete specific frames in the AVI?
You can open the AVI in vdub and go frame by frame to see get a better idea what is wrong with the animation. You can also delete specific frames by marking in/out and deleting. -
No, render doesnt work and im compressing it with Xvid.
This is either a problem of Camtasia itself not being able to deal with micro editing (frame by frame changes in animation) or my computer somewhat ******* things up because it's not powerful enough (only 2gb of ram).
Anyway, is there a way to convert a .avi into a sequence of PNG files? this way I could easily spot the duplicates and remove them. Still a big pain in the ass but much better than doing it with Virtualdub. -
vdub , file => export => image sequenceOriginally Posted by rocco123
or ffmpeg
ffmpeg -i input.avi -c:v png -an output%04d.png
I'm guessing you're going to have to redo the animation anyways -
No, the animation is correct, camtasia is definitely buggy. When I move frame by frame with right key (->) I hit some frames that are wrong (the object on top of the ball is moved a bit, when im sure I placed it correctly). So I go back one frame, (<-), then go again to the same frame (->) and the object is placed right on top of the ball where it should be.
So camtasia's animation suck, this is my guess. I need Sony Vegas and more RAM. -
Well camtasia is mainly geared for screen capture . It has a timeline but editing with it is very limited. It's too bad you wasted all that time hand tracking
It's possible to do this in vegas by hand, or even aviutl by hand .
But after effects is best suited for these types of tasks, it has more comprehensive and better toolset for this type of thing . -
About importing as image sequence and manually deleting dupes.. forget it, its 6000 frames, i'll go insane. I need it done automated.
-
There are scripts that can remove duplicate frames in avisynth (automated)
But that doesn't really help you - because you would be left with gaps in the animation -
What do you mean gaps? The duplicates are replaced with black screen or something?
Is there a way to remove duplicated separate images? (from a PNG sequence on a folder for example) -
I'm making some assumptions on what you have - are you missing frames in the animation as well ? ie. are the duplicates as the result of the messed up animation? Sometimes the duplicate is suppose to be a frame, but it's missing in the sequence (ie. real frame is replaced by a duplicate)
Are the duplicates - identical duplicates , or just close ?
You can use scripts to either delete duplicates , or replace them with black frames, or motion interpolated frames (a new "inbetween" frame)
Your earlier description suggested something else is entirely messed up, like the replacement object is in the wrong place. That would leave a gap in the animation eg. 1,2,3,5,6... (missing frame 4, because either "4" was a duplicate of 3, or is messed up completely from your earlier description)
Maybe do a better job describing what you have, or post a sample -
You're pretty much hosed. Unless you get some more knowledge under the skull cap.Originally Posted by rocco123
-
Nobody can give you any concrete help unless you give an exact specification of what's wrong. The best thing for you to do is provide a sample.
-
Identical duplicates is what i need to delete.Originally Posted by poisondeathray
Omg, I have a better idea, is there a program to press a key and take a screenshot and save it automatically? I would take a screenshot of each frame off the playback screen in camtasia, since when im going frame by frame by pressing the left key, the object is correctly placed. Then I will assemble a video with these PNG files. Thats what can save my ass at this point. -
Originally Posted by rocco123
How is that going to help you if the frames are mixed up within camtasia ? Didn't you say the problems occur within camtasia, in the preview before you even exported it ? (if you go forward or back, the object changes location from where it was before)
Are the duplicates supposed to be other frames (are they rendered incorrectly and become duplicates), or are they inserted duplicates? If you delete the duplicates will there be gaps? Or if you cover "over" the duplicates will it the animation be correct ? Or none of the above ?
What happened to the other frames where the object is the wrong place ? -
Here's the thing:Originally Posted by poisondeathray
Originally Posted by rocco123
How is that going to help you if the frames are mixed up within camtasia ? Didn't you say the problems occur within camtasia, in the preview before you even exported it ? (if you go forward or back, the object changes location from where it was before)
Are the duplicates supposed to be other frames (are they rendered incorrectly and become duplicates), or are they inserted duplicates? If you delete the duplicates will there be gaps? Or if you cover "over" the duplicates will it the animation be correct ? Or none of the above ?
What happened to the other frames where the object is the wrong place ?
Playback in camtasia: Fail. The object is not accurately put on top of the ball at all times, jerky.
Rendering to avi: Fail, same.
Going frame by frame manually pressing the forward key: The object goes out of place only in a couple of frames, but I can go backwards, then press forward again and it gets fixed, I only need to do this in a couple of frames. So if I take a screenshot of the playback section frame by frame, I can get a good result.
The video with duplicates was a video I recorded while doing what I explained, so of course there are tons of duplicates because I take time to press forward because if I do it too quick the problem happens, if I go frame by frame waiting 1 or 2 seconds, the object is placed correctly. So im going to do the same but not taking a video, but taking screenshots with a program that takes screenshots. Does it make sense yet? -
Maybe try snagit, or faststone screen capture
Quote
