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Author Topic: Time Vortex!  (Read 2683 times)
jed
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« on: January 01, 2008, 12:44:15 AM »

Hi, I've really been trying to make a Time Vortex like the ones in Doctor Who using 3D Studio Max but i have no idea how to do it!
Please help! I have been looking around everywhere but i cant find any information on it.
Thanks.
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Colonel Barker
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« Reply #1 on: March 05, 2008, 03:21:37 PM »

Hey, are you still about man? I completly missed this post.

I can't tell you about Max, as I use Maya, but I think the procsess should be the same kind of thing.

The easiest way is to firstly, make a big curve, snaking about the place for ever, so it looks like cursive handwriting from the top, but not dropping down on the Y axis.

Then, I dont know if you can do this in Max, but I make a circle, just out of a line and use that circle to 'extrude' a tube out of the long line, so what you end up with is something that looks like a long pile of toothpaste. But hollow.

Then create a camera, and animate it, using the origional curve as a motion path, and then check to make sure your getting the right view from the camera, and your not going the wrong way down the tunnel, or sideways! Now, what you should have, is a camera that keeps going down a tunnel, looking left and right.. not very exciting. oh, make the sequance perhaps 1500 frames, depending on the lengh of your tube and the speed you want the tunnel to fly at.

But, here is the trick, in Maya, you can go into the motion path settings of the camera, and tell it to 'tilt' as it turns, I am sure Max would have something for this, set the number to around 90 degrees. Then when your going left and right the camera will 'swurve' down the corridor and look very cool. But there's more.

What's wrong? It isn't going up or down, so get the "tilt" of the camera, and write an expression for it, in maya it would look like

roatate z = time*4; 

or something like that, depending on the scale of your scene and the origional orientation of the scene you made up. If you dont know how to write code, simlpy animate that roate, go forward every few 100 frames and rotate back and forth, if you know any random scripting, or can connect the animation into the colour channel of a cloud texture, the results can be fantastic from just two or three button pushes.

I am not sure about max, but Maya automatically maps an object just extruded like that, so you dont need to worry about UV mapping. So just find some cloud texture, bring it into photoshop, make it very, very long. Clean up the repeats, make sure it has lots of noise. Then tint the whole thing using the colourize tool. make it blue or red, or whatever you want. Save that, throw it on the tunnel.

Okay, lighting can be the fun part. Grab a point light, or some small intense light, parent it to the camera. Then look through your camera view, take a test render. Ajust your light, so things look nice and bright here, and you get things darkening towards then end of the tunnel. if you like, colour the light, or put a random script on the light.. something, in maya like:

intensity = rand(.8,1.2);

I hope these scripts work, I am just making them up, but you get the idea. Or bring the ".8" and "1.2" closer together like ".95,1.1" if it's too random for you.

And There you have. A cool looking Dr Who style tunnel. Putting in a police box is easy, as are some text. Make the words, animate them to your curve. BUT in order for your camera to see them at any point, make their start point later / earlier than the main camera, and again, have them finish before after. make sure you animate a spin on the Police Box. You can do that again with just a time script.

The advantage with animating along motion paths and using scripts is no keyframes is needed at all. So if you want to change the speed/ spin etc, you just need to change the motion path or your script. So no more f**ka*sing around using keyframes or the dope sheet.

I hope your still here to read this, or that it helped someone else!

Colonel Barker, who was a little late...
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Marc Taylor
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« Reply #2 on: March 05, 2008, 11:43:43 PM »

Yep, I've been wondering this for a while too!

Materials/Textures... one issue if you use an image... there will be a seam running the length of the tube. I tried this once with a poly tube. Is there some way to apply a fractal noise, or something, to it natively in Maya?

-Marc
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Wayne
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« Reply #3 on: March 06, 2008, 06:25:01 AM »

You can get something pretty close using just after effects with a fe minutes work.  Best bit about that is its far easier to create and render it out.

Wayne...
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Colonel Barker
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« Reply #4 on: March 06, 2008, 03:16:20 PM »

Well, you could do the same thing in Fusion happily too, but in AE you dont get to put in true 3D elements right?

Although Fusion does allow you to bring in and animate true 3D elements, but the software's 3D elements are very clunky.


Marc, The seam can be a problem, I was trying to simplify the whole thing down to someone new, but you could just as easily make a clowd texture, and alter the settings to fit it, or as you say a fractal.

Actually, the way I made mine, is by making two tubes, one slightly bigger than the other, both NURBS, so you can make sure the corners are perfectly smooth when you render them. But the outside one needs to be completly solid with perhaps a cloud texture, with the only colour being blue or red. Then the inside one, you have with red/ blue / white with transparency across the clowds.

The way to make the two layers to work, is to go into the texture options, and right click on the U or V options, that allows you basically horrisontal and vertical control. Then put in a script, or link it to the connection editor to a noise node, and then bring the noise level right down. then your clowds will move slightly faster than the rest of it or rotate.

There are more complicated ways of doing it, and simpler ones, but that's just how I do it. Oh, and dont render it in HD, or you will wait the rest of your life while it renders.

Actually, I will post one I was playing around months ago, just for the fun of it...

CB
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Rob S
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« Reply #5 on: March 06, 2008, 05:36:48 PM »

actually you can do true 3D in after effects too. I've seen complete 3D scenes with lights, cameras and objects in AE. And thats without any plug-ins.
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Colonel Barker
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« Reply #6 on: March 06, 2008, 05:49:14 PM »

I stand corrected. I use AE quite a bit, but I have only touched on the 3D elements.

So, Rob, given your background would you reccomend using AE or a 3D app?
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« Reply #7 on: March 07, 2008, 12:21:57 AM »

There was a tutorial "how to create a tv channel ident" in 3D World magazine not so long ago. I think it was the one with the TRANSFORMERS stuff on the front... That showed a way to import 3D stuff into AE (I forget the format now...)

-Marc
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Wayne
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« Reply #8 on: March 07, 2008, 08:40:23 AM »

actually you can do true 3D in after effects too. I've seen complete 3D scenes with lights, cameras and objects in AE. And thats without any plug-ins.

Yeah obsolutely corrct (I've done a few of them form time to time when it ben easier than to do somthing in 'real' 3d in an app.)  often for some stuff it can be a heck of a lot quicker and easier.

Wayne...
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Rob S
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« Reply #9 on: March 09, 2008, 04:09:41 AM »

I stand corrected. I use AE quite a bit, but I have only touched on the 3D elements.

So, Rob, given your background would you reccomend using AE or a 3D app?

Totally use a 3D program. Then do post in a program like AE or fusion. If you use one of the Autodesk programs you might want to use Combustion for post. If you save your files as .RLA you can do so really cool stuff with Combustion in post. Check out the first link on this page.
http://usa.autodesk.com/adsk/servlet/index?siteID=123112&id=5665905

The real cool stuff is near the end of teh video sadly.
« Last Edit: March 09, 2008, 04:15:45 AM by Rob S » Logged

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Colonel Barker
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« Reply #10 on: March 10, 2008, 04:42:35 PM »

Oh if only I could afford that.

Thanks for the Advice guys. I always do a lot of post work on the titles, or else they begin to look a little TOO much like in Game computer Graphics.

I will have a looksie at the video when I am not on dial up.. or else I could be here all day.

CB
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