Looking to create a wire flythrough - any ideas?

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Looking to create a wire flythrough - any ideas? // Roundtable

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Post by davidjohnson // Jun 8, 2006, 2:30pm

davidjohnson
Total Posts: 169
I want to create a through the telephone receiver - into the wire flythrough like in the movies (I think David Fincher does this in Panic Room). Does anyone have a suggestion for this?

Post by clintonman // Jun 8, 2006, 5:13pm

clintonman
Total Posts: 304
pic
Create a curve for the length of the wire and then copy the curve.

Create a circle.

Use the loft surface command on the circle and then choose the curve. This will create the tube and eat up one of the curves.

Create a camera and then choose curve to path tool and select the remaining curve. If you play the animation at this point the camera will move down the path.

The final step is to choose the camera and use the look ahead tool to make the camera point in the direction of travel.


Clinton

Post by TomG // Jun 9, 2006, 2:29am

TomG
Total Posts: 3397
Also, do it as two scenes.


The first scene is just the camera zooming up to one of the holes in the receiver mouthpiece. At the point of entering the hole, the image will be black, allowing you to just cut that animation at that point.


Then do the "rushing through the wires" animation. Splice the two together at the convenient black screen in a video editing app.


Frequently done in movies with the "passing through a brick wall" cut (again since there is an instant of black in the screen, it doesnt have to be done in one take there either).


With this being separate scenes and animations now, you could in fact just run around inside a torus, no need to actually have a twisting wire. I would place a camera inside the torus, and rotate the torus. You'll need textures and / or lighting to show the sides of the tunnel are actually moving. In fact you could even leave the torus stationary and animate the texture now I think on it.


With a few camera rotations, and maybe moves up and down or side to side, you should get a convincing sense of moving through a twisted coil, but without the complexity of creating said coil, and following the complex shape of the helix which will be bent this way and that too with the dangling of the cord.


If you want to go into the main telephone line, introduce another black screen, and then switch to a third scene for the straight tunnel. An animated texture would be good here, since it avoids the need to have a vast long cylinder to move through :)


HTH!

Tom

Post by davidjohnson // Jun 9, 2006, 11:55am

davidjohnson
Total Posts: 169
Thanks for the replies. I really want it sort of twisting, so I am going to have a go at the spline stuff. Can you break down the steps? First create the spline, then loft it? How can I make it hollow?

Post by davidjohnson // Jun 9, 2006, 1:34pm

davidjohnson
Total Posts: 169
Ok, I have created a pretty cool tube, thanks for the help with the lofting! Now, I made it reflective and stuck a couple of lights in different places inside to make show more, but my only problem is I want the impression of speed as it goes. Any ideas on how to do this? Shaders?

Post by Zeipher // Jun 9, 2006, 1:39pm

Zeipher
Total Posts: 224
pic
Use motion Blur. Always a good way. If you add a bump map on the inside of the wire then use motion blur you will get nice looking streaks. Keep the distance low (0.5 - 0.75) and the... other one high. lol.


My buddy Frank taught me that one!


andy

Post by TomG // Jun 9, 2006, 2:06pm

TomG
Total Posts: 3397
Hmm, but you can get the same effects as the twisting, without the complex path.


Like a train at a station, when it moves, to the people on the train it looks as if the station is moving. In other words, movement is relative :)


So a regular torus that doesn't move, and some camera angling and moving on the spot, with animated textures, will give the same visual result, but be generally easier to control. Or if it does look visually different, just a helix that stops as soon as it goes "round the corner"


Bends in the overall wire can be simulated via rotating the camera (once again since you can never see further than "the next bend" in the helix). Then speed can be as fast as you like, since only your texture will move, and you won't "run out of wire" :)


Anyway, just worth a mention that I think the same effects you are after could be achieved by treating the movement as relative and giving you an easier time of scene set up :)


HTH!

Tom

Post by Zeipher // Jun 9, 2006, 2:17pm

Zeipher
Total Posts: 224
pic
How long do you want the animation to last, and what version are you using?
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