realistic drop (gravity)

[Steve Roberts]

Try here:
https://www.jjgifford.com/expressions/

Doing it by hand with bezier curves on the position value graphs can be fun, too. 🙂

Steve

[Alistair Chisholm]

woah, great article there, looks fascinating reading, looks like it requires a lot of attention while reading. I am not in a great atmosphere for that right now. I might try and sit down tonight and have a look. For the time-being could you describe the bezier curve technique for me? many thanks again

[Michael Szalapski]

Just how realistically can a couch drop out of the sky? 😉

You’re going to need to do a good shadow in addition to falling. A good shadow really sells the effect.

How about a drop shadow? *rim shot* (No, seriously, don’t do a drop shadow.)

– The Great Szalam
(The ‘Great’ stands for ‘Not So Great)

No trees were harmed in the creation of this message, but several thousand electrons were mildly inconvenienced.

[Alistair Chisholm]

yeah, i know! i bet this question’s never been asked on here before. It’s actually going to be a 3-piece suite falling! I agree with what you’re saying about the shadow. I will use techniques from this tutorial:

https://www.graphics.com/modules.php?name=Sections&op=listarticles&secid=20

especially part 2, still haven’t figured out the best way to animate the fall and impact on the ground though.

[Michael Szalapski]

A puff of dust (there are emitters set up to do this that you can freely download from Wondertouch for ParticleIllusion) will help sell the effect that the suite has landed. Sound effects really help too.
Add a touch of rotation when they bounce. And when they bounce make them move a bit sideways.

In fact you could go drop a couch now and film it, so you can see how it moves in real life! Then you wouldn’t even need to recreate it in AE.

– The Great Szalam
(The ‘Great’ stands for ‘Not So Great)

No trees were harmed in the creation of this message, but several thousand electrons were mildly inconvenienced.

[Steve Roberts]

You know … maybe you should drop something heavy with a tracking marker at its center, shoot it, then track it in AE and make the falling object layer follow the track. Tweak to suit.

Steve

[Mike Clasby]

For the basic fall and bounce, this post from Dan Ebberts might help. If the link doesn’t work, search for “Scale/gravity” Ebberts, Yes to Search Archive.

https://forums.creativecow.net/cgi-bin/new_read_post.cgi?forumid=2&postid=502053&archive=T

[Alistair Chisholm]

That is excellent, thanks very much for lookin that up. I have been tweaking the expression and it looks pretty good although i need to change one thing. The constant X velocity makes the couch land, but then continues to move left which obviously isn’t very realistic. Can anyone suggest how i decay the x velocity so it comes to a standstill?

[Serge Hamad]

Hi try this:

Vx0 = 0; // initial x velocity (pixels/second)

Instead of: Vx0 = 100; // initial x velocity (pixels/second)

Salut.
Serge

[Alistair Chisholm]

cheers ,i sorta figured that out myself. i’ve got it looking good. Just one more question (sorry, i’m not very sharp with expressions)

I want to put a short pause of varying times on each falling object. How would i ask it to wait, say 2 seconds then drop it (and drop another object at, say 3 secs)?