How does mapping projection work




















Creativity is possibly the biggest unique selling point of 3D projection mapping. You can make anything appear how you want to. For instance, if you want a tree to appear spooky, green and glowing? No problem. Anything is possible. People are much more likely to be amazed by projection mapping compared to more traditional methods.

It leaves the audience looking on in awe and not wanting to take their eyes off of your work. Ultimately, this ensures that your brand, product or service is going to be remembered. Projection mapping is much more imaginative, impressionable and interactive than a simple poster or leaflet promoting an event.

By: Adrian Pennington. Adrian Pennington is a professional journalist, editor and copywriter specialising in the production, the technology and the business of moving image media. This blog is created by Dataton , and is about multi-display software and surrounding technologies, media servers, content creation - basically anything within the AV industry that serves to enrich the audience experience!

What is projection mapping? From static object to captivating experience The tools A short history Different surfaces, same technique Map for impact From static object to captivating experience At its very simplest, projection mapping is the art of making multiple projectors work together on a surface to create amazing visual displays.

The tools The essential tools for projection mapping are self-evidently a series of powerful projectors and software like WATCHOUT which maps the coordinates of objects in relation to the projectors, aligns multiple projections together and controls all the hardware. Different surfaces, same technique Mapping can be loosely split into two kinds: on 2D where you projection map flat surfaces such as screens, walls, ceiling and floors to amplify the event space, or on 3D objects, often curved, cornered, or otherwise irregularly shaped like the mapped polar bear shown opposite , to create interactive displays.

Write a comment. Recent Posts. Thanks to the wonders of modern technology, videographers, advertiser and production companies can now produce amazing graphic images that can be displayed on virtually anything. From the side of a building to the inside of a convention center, projection mapping can transform a plain surface into a wall of wonder. Projection Mapping uses technology to project objects onto a surface.

Using this kind of special technology, everyday objects are transformed into a display surface for video projection. These objects could be as complex as an entire landscape, or as simple as just a few shapes that help to enhance the ambiance of a room. Unlike flat screen mapping, the objects are not just projected onto a flat surface, they are designed to wrap around buildings and mold into their shape, turning common objects into interactive 3D displays. The plastic I bought comes in a large roll, I bought mine according to the width i needed.

The sheets were first cut and numbered in an organized way. Next, two pieces of wood were prepared for each sheet. I decided to use thin fishing line to hold the panels up. First attaching on the ceiling frame and then anchoring to the ground so that they do not fly around.

Keep in mind that with nylon fishing line its quite troublesome to tie knots with! Constantly using my digital model as a reference, I basically used digital fabrication but this was more of a manual fabrication. Its tedious work! We first acquired two projectors and two laptops.

We then decided the optimal placing for the projectors. This is important, as the resolution of your final work will be affected by this. Place the projector at a location where its throw perfectly covers everything you want it to project on. Get as close as you can! For our structure, as we wanted all of the front panels to be able to take on a colour of its own, we decided to use two projectors placed in such a way that from the projector's point of view, none of the panels were intersecting.

After being satisfied that the projectors were in the right place we marked their locations with tape so that we can recreate the same setup many times.

After that we started up Resolume Arena, using which we created masks for each of the panels. We then had two masks, one for the left projector and one for the right. Now that we have these masks, we know exactly what the projector is seeing. We now need to align our camera in our 3d software to see the same thing as our projector. In Cinema4d we set the mask as a back ground image and approximately place the cinema4d camera so that it matches the projectors position.

And then by guessing and luck we moved and rotated the cinema4d camera until our 3d scene matched exactly the digital scene. We had to do this for both cinema4d cameras. This is a tricky step, take your time, everything depends on how well you align the digital model to the masks. If you made it this far you can finally take a breather. This is now the fun creative part, watch lots of videos for inspiration, use tutorials to learn, or simply download content from other generous artists.

I used Adobe After Effects to create most of my content. This is where the true mapping happens. By now we have prepared a grand canvas, placed our projectors optimally and aligned our digital cameras to out projectors. Now, in this step you as an artist must decide from which angle you want your work to to seen from.

Remember, projection mapping typically only works from one point of view. After deciding this you now need to place a third camera in cinema4d, this camera represents the audience's point of view.

You want that the viewer standing at this point sees a completely unwarped image.



0コメント

  • 1000 / 1000