View Full Version : Newbie needing help with DNA helix! :)

10-20-2003, 09:12 AM
Hi folks,

I am creating a desktop wallpaper for a cinema company, and I would like to create an effect for it that will look like a film strip spiralling like the ribbon on a DNA strand (if you know what I mean).

What would be the easiest way of doing this? I have created the tiled texture for the film strip, just need to create the actual spiral.

Any help greatly appreciated.



10-20-2003, 11:12 AM
DNA is 2 helixes with cross joins.
Create 1 unit - presumably 2 film thin frames and somes sort of bridge between them, centred over 0.0.
Repeat it vertically as many times as you think will be needed by arraying with auto spacing (that'll make them touch) (maybe merge points)
Use modify/twist in the middle of the plan view.

10-21-2003, 04:55 AM
Thanks for the reply mate, but what I really want to know is how to make the ribbon strip, not too worried about the cross joins.

Just want to get from ribbon to spiral ribbon.

Anyone help me?

10-21-2003, 07:21 AM
For a film strip, the obvious answer to me is build a long flat box, multi-segmented.
Make a morph of it twisted, using the twist tool, (720 deg == 2 turns).
Texture the base and the morph will have the nicely tiled texture.

Is this what you mean?

10-21-2003, 07:35 AM
Is this what you're after?
Make strip, shear, bend in a circle ?
if you made it flat and mapped images to it, then made a morph target that was sheared & bent.

10-21-2003, 07:37 AM
attatchment, I hope

10-21-2003, 12:57 PM
Similar way of doing it.
I tend to use twist with the base model offset from the origin.
Then of course, there are ways of doing it with lathe, extrude..