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View Full Version : Logo wipe on...wipe off - as if in writing



sgregerson
06-15-2009, 10:37 PM
Any ideas on how to wipe a logo, text or object - as if the wipe were to follow the shape slowly revealing it frame by frame - or as if being hand written in real time?

Thanks in advance for ideas.

othornton
06-16-2009, 01:33 AM
For writing you could try Denis Pontonnier's Marker Pen shader.

http://pagesperso-orange.fr/dpont/plugins/Textures.htm

biliousfrog
06-16-2009, 01:51 AM
There's also the fertilizer plugin, might prove useful (scan down the posts below yours).

OnlineRender
06-16-2009, 01:54 AM
dont know how to do it via LW , you could cheat depends on background colour and place a black box over the text image then push it to the side , i know how easily you can do it with after affects , mask - stroke -whalla :)


PEACE

oobievision
06-16-2009, 06:55 AM
man theres a way to wipre an object I used to do it to reveal wire frame let me see if I can find the tutorial and ill post it.

Dodgy
06-16-2009, 08:13 AM
You can spray particles and use HV's to turn them into the writing, then you can do what you want with them.

sgregerson
06-16-2009, 08:50 AM
Thanks all. I'll try looking into the first two suggestions. I was trying your suggestion "OnlineRender" using morphing plates, which looks ok, but to get a soft edge that works correctly with the background color was tough. Doing the frame-by-frame in AE was my final option, just always prefer to do everything in LW, when possible. If you find it "oobievision", please let me know, as it sounds similar to what I'm doing. I'm using particles and a flare to make it look like a spark welder is emblazing the part of the logo on screen, so that is where the "reveal" of the hidden logo component has to be unveiled following the particles. Make sense?

I appreciate your input, thanks a lot! :)

monovich
06-16-2009, 10:05 AM
The best 3d approach is probably Fertilizer, and if you want to wipe it back off, use Fertilizer 2. Make sure you build your mesh with an even distribution of polys, it'll animate on more predictably. See attached image.

http://www.monovich.com/mono_forest_v001.mov

adamredwoods
06-16-2009, 11:43 AM
dont know how to do it via LW , you could cheat depends on background colour and place a black box over the text image then push it to the side , i know how easily you can do it with after affects , mask - stroke -whalla :)


clipmap, too.
http://newtek.com/forums/showthread.php?t=51647&highlight=clipmap

More tutorials:
http://www.md-arts.com/tutorials/lw_tutorials/tutorials.html

Or even a transparency gradient based on an animated mov file (aftereffects)...
Or even the new animated gradient node?


Lots of ways!

wildr3d
06-19-2009, 12:21 PM
The best 3d approach is probably Fertilizer, and if you want to wipe it back off, use Fertilizer 2. Make sure you build your mesh with an even distribution of polys, it'll animate on more predictably. See attached image.

http://www.monovich.com/mono_forest_v001.mov

Thats really slick Monovich, how was the smoke done, kinda looks like dynamite.

Revanto
06-21-2009, 05:47 PM
It's funny because there are alot of ways of doing it but it's hard to make things easier unless you give us an idea of a before and after shot. For example, if your camera is moving while the logo is revealing itself, you may find one technique better than another. If your logo has changing lighting, that's another technique. If your background is a still image with no changing lighting, texturing, etc... and there's no movement then it becomes more easier.

One idea is to create a proxy object over the top of your logo that covers up your logo completely and use a null controlled transparency map to animate the reveal. The covering object would have a baked copy of the background image set to front projection as colour. The Luminosity would be 100% and diffuse 0% so the object would blend into the background. The object would have to be a strip of polygons along the X axis that is morphed into the outlines of the logo. It needs to be a strip of polygons, though, so that when you move your null reference object along the X axis, the animation of the transparency map is easy.

I realise that this may sound complex but it's easy once you get the basic idea behind it.

Hope this helps.

Cheers,
Revanto :p

sgregerson
06-22-2009, 05:48 PM
Sorry Monovich, I thought I had actually posted a reply thanking you for the Fertilizer advice. I've downloaded both and will be trying them this week. I appreciate everyones advice. Thanks Revanto, if fertilizer does not work, I'll give that a try.

Regards all, I'll post my success here when I'm done.

Sgreg

monovich
06-23-2009, 04:22 PM
Thats really slick Monovich, how was the smoke done, kinda looks like dynamite.

thanks ken, it is dynamite. I finally popped it back open after only using it once right after it was released. its pretty stable, fast and fun.