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Pamukkedi
02-09-2011, 06:04 AM
Hi folks,
I dont know why, but a client wants to have a cool projection mapping show from me. Like this one:

www.vimeo.com/15716482

Does anybody know how that works? Do I need a 3d representation of the building for texture projection, or are 2D masks okay? Do I need special software for the projector to compensate the original textures of the building?

Is it possible to simulate a show before being killed by the client, because the animation does not match the building?

Please help.

probiner
02-09-2011, 07:32 AM
Interesting question.

bassmanjam
02-09-2011, 01:37 PM
I would say that you would want to go on location with the actual projector that will be used for the show. Maybe send a video feed from After Effects to the projector and then block out your building - like use basic mask shapes to outline everything you would need to distinctly model. Use white lines on a black bg. You should be able to see through the projector your lines and how they fall on the actual building and adjust to fit.
Then use that 1920x1080(?) still as your camera bg in LW and model to match those shapes, perspective, and projector lens. That's if you actually need to do anything in 3D. You might be able to stick to doing it in After Effects. That's kind of what it looks like in the reference video. I guess it depends on what you need to project.

Titus
02-09-2011, 01:55 PM
Hi folks,
I dont know why, but a client wants to have a cool projection mapping show from me. Like this one:

www.vimeo.com/15716482

Does anybody know how that works? Do I need a 3d representation of the building for texture projection, or are 2D masks okay? Do I need special software for the projector to compensate the original textures of the building?

Is it possible to simulate a show before being killed by the client, because the animation does not match the building?

Please help.

It's a tricky question. You may reconstruct the original geometry and paste over it, the geometry occusion gives you the masks. If you want more control over the perspective you can use a VJ program like VVVV to map the image over a model and output the corrected image.

http://vvvv.org/

the3dwiz
02-09-2011, 04:16 PM
Do you only have to provide the Visuals, or are you also responsible for the setup of the Hardware? And does the client just want it to be animated or does he want it interactive?
A pearson i have worked with has some experience with projects like this.
Have a look at the webpage of them, and send them a email. Maby they can provide some help.
http://www.insert-coin.ch/projects.html

the3dwiz
02-09-2011, 04:59 PM
Just stumbled over a link that may interess you!

http://www.textmachine3d.com/

Pamukkedi
02-10-2011, 04:38 AM
Thanks a lot for the help. Textmachine looks great. IŽll let you know, when the project is on Vimeo.

the3dwiz
02-11-2011, 10:31 AM
Gr8, allways interesstet to se what people come up with:-) !

druitre
02-13-2011, 06:52 AM
I worked on one of those recently, see the video at http://www.vimeo.com/17845136

I did the clothsims you can see somewhere near the end, all of the more technical stuff concerning the beamers was taken care of by the company whose url is under the video.

I rendered at 3840 x 2160 which was split into a 2x2 grid (4 x 1920/1080) and projected by 4 carefully lined-up beamers.

We had a company create a 3D scan of the facade for us (a huge pointcloud that they converted into a hires mesh) that provided a perfect distortion-free template for both 3D and 2D animations (most of the animation was done in after effects).

I don't know what software was driving the beamers, but I was told it allowed for correcting any distortions on the site. Some four-corner-pin type of thing.

Good luck!