[Zvi Twersky]

Thanks!

Well, so you know is it’s correct that PhotoJPEG at under %90 is 4:2:2 and over %90 is 4:4:4? Because I render in PhotoJPEG – %89 and a 20 second clip is 61MB.

[Zvi Twersky]

Isn’t color sampling a kind of compression so that the file size will reduce? If we keep unique luminance and color for all 4 pixes in every image, hence 4:4:4, wouldn’t this mean that the entire video is uncompressed?

Maybe I’m just not understanding but what else is there to compress in the video (not audio) besides the images?

[Zvi Twersky]

How can over %90 be 4:4:4? 4:4:4 means no compression at all, and I AM using a compreser.

[Zvi Twersky]

I also read that older DVDs can’t read 24.

[Zvi Twersky]

Just wanted to ask first about 24… is this really progressive shooting? I read somewhere that 24 frames will always display as interlaced video because of the drop out frames. I also read a lot about that it isn’t true that 24f gives you a video look.

So is this really good quality as 25p or 30p? I didn’t see a whole lot of people that use digital to shoot 24p.

If it IS ok, are you suggesting that I always shoot in 24p when I need the final output to be played in a NTSC player?

Thanks

[Zvi Twersky]

ok, we’re getting somewhere… 🙂

Combinding them both allowed me to stretch the clip like you said. Now I’m just playing around with the motion blur and stuff because the part that I reduced its speed to 7… (with timewarp keyframes) what happens is it plays VERY nice quality slow speed but evey 10 frames or so it pauses (frezzes for a few frames.) I guess its trying to make up for the time with pauses which of course is no good.

It’s 3:26 AM here, so I’m going to sleep. I’ll work on it tomorrow.

p.s.
Go here: https://www.videolan.org/vlc/

It’s a GREAT LITTLE free player that will play ANYTHING without downloading any codecs. It’s compatable with almost evey OS including MAC, LINUX, etc… You can watch the clip with it. It’s worth it just to see the slow motion quality in it.

[Zvi Twersky]

Ok, here’s a clip. It’s not very difficult effects to do in AE but I was wondering if this kind of clip was done in AE: https://www.ifilm.com/video/2546683

[Zvi Twersky]

Thanks for posting your site. I loved the clip!

Well, my question wasn’t for something I need to do now, it was more of a general question for future work. I was talking more about clips like seen a lot on MTV, with many effect in them. I’ll try to find an example and post it, but the idea is that some music clips have effects in them like crazy. (not just chrome keying stuff). So I was wondering if all that is done in AE or something.

[Zvi Twersky]

I’ll explain what I did, but first… here’s a problem with Time Remap:
If I try to slow down a part in the graph… it has to “make up” for that by speeding up the following frames! How do you get around that? You can’t take the graph down again, because then the video will go backwards. It’s like a double time line… both indicate the time.

With the Timewarp, here’s what happens (you can try it with the clip I used: https://theater.suntropolis.com/scene22fx.wmv)

Let me give some frames lables so I can refer to them.

The above clip durration is 0:00:11:02
Lets call the first frame of this clip FRAME AA.
If you jump to 0:00:05:15, you see the girl walking. Let’s call this frame FRAME BB. The last frame of this clip (0:00:11:02) you see two men. Let’s call this frame FRAME CC.

I put this scene in the timeframe. When I apply the Timewarp with just the default setting of %50 (no other changes) the entire clip is now still 0:00:11:02, but NOW if you go to the LAST frame of this clip in the timeline, (0:00:11:02) you don’t see FRAME CC (the two men), but you see FRAME BB! (The girl walking). This SHOULD be ok, considering that the speed was reduced %50, but the problem is, the rest of the clip got CUT and I SHOULD be able to drag and stretch the clip so I can see it until the end, but it’s not letting me stretch the clip! So everything past FRAME BB is lost.

[Zvi Twersky]

First, thank you for the reply. I’m sorry I didn’t explain myself, and made you write so much about the keyframes, which actually I DID do the correct keyframes… (not the hold, but a total of 5).

About the Time Remap, I knew about that too but the timewarp is suppost to be able to reduce the speed to even at a speed of 5 – giving it a super quality slow speed motion. I saw a demo clip once made with a third party plugin for premiere pro, and was told that the timewarp in AE can do the same.

The problem with exreme slow motion without a plugin in premiere is, if you reduce the speed to under %30, the picture starts to stutter… becomes jumpy, because it’s just duplicating frames and of course it can’t recreate inforamtion that doesn’t exist.

I’m not sure how the timewarp is supposed to work, but seeing it on this demo clip, shows slow motion at speeds of 3 – 7 and it’s VERY smooth and VERY slow, which gives the slow motion an effect like it was shot with a proffesional highspeed camera, like they use to shoot sports, and then slowed down.

This is the effect I was trying to get from the timewarp. I don’t think Time Remap can produce this kind of quality slow motion.