Some general questions I have about 3d projection mapping.
I am interested in mapping the inside of a building. I am not aiming for a performance environment but more for creating an ambience for a social space, like a coffee shop/bar.
As this will be my first attempt on anything related with 3d projection mapping, I would just like to hear some advices from people who did something similar.
I am bothered mainly with questions such as:
What is the minimum height that the ceiling have to be?
What kind of angles do the projectors need to be? Can you map with an inclined/declined projector?
What kind of lighting must the room have?
This is a project which is just beginning, so I havent really found the place yet. Any limitations on the room dimension/size?
Also can anyone recommend some :
a) tutorials on mapping ( I know about the one in vvvv help)
b) information about projectors
Please feel free to add any other problems/considerations that I will face, which by planning from before, they could be avoided.
Hi dorosp, ceiling eight are somethingimportant to avoid lighting eyes of people, especially in a space where people would relax stay fix and are supposed to take pleasure to stay in …
Another rule in lighting (so videoprojecting) is to use circulation ways as direction for your projection: means the people circulating have mainly the beam behind them. Its a great rule in lighting, especially in museums, so its surely also a big rule for mapping especially with little spaces where you have to find solutions.
Hi dorsop, its more something depending about the mix of:
your artistical / technical needs
Essential questions are:
wich luminosity ( dont get down the 3000 lumens, be aware more far you are from the projection plane less light there is)
wich ratio of opening of the lens ( 1:1.2 / 1:2.5 aka 1m width is obtain at 1.2meter distance, or 2.5m distance)
wich nativ resolution of the matrix of the video projector ( are you displaying HD on one VP or a 1280*720 native matrix is enough ), wich changes really prices and offer. ( Talking about resolution )
are you on a fix install, if yes investissment should be done on reliable material ( Sanyo, Epson, Panasonic) with warranty of 5 years or 3 years included in price.
For myself i m working essentially with Sanyo, that have a real great quality of contrast and color.
Actually on little-middle projects, im using PLC-XU106, very versatile, good optical range ( despite this is a fix lens), low price (800euros without taxes) for a high luminosity. This show is touring a lot and no problem with it :( [http://vimeo.com/20212510 ](PLC-XU106](http://us.sanyo.com/Projectors-by-Market-Government-Meeting/PLC-XU106), very versatile, good optical range ( despite this is a fix lens), low price (800euros without taxes) for a high luminosity. This show is touring a lot and no problem with it :( [http://vimeo.com/20212510 ))
I m actually on creation on another project with the same VP in ceiling position , 45° angle ( fan is adjustable, depending the angle). I think its very interresting for wide panoramics with 2 or more VP.
If you are thinking of color nuances, you should better go to Panasonic, wich are more soft and more nuanced in their projection.
This question of the color is very important, as your result on your screen at work will be very transformed on projecting .
Contrasting the videoprojector a lot in order to fight with a luminuous environnement will enhance loose of details and nuanciesalso. There will be a great gain of lighting.
If you have a project in tints and nuances, you should first make a video demo of your artistical material, and make some tests in shops before buying material. This will affect a lot your result.
Personnaly i m creating materials with the lighting and color response of the videoprojector in situation, and not at home on a screen.
I know that my screen will give me nuances i will never have at the end by projection. But this a theatre/dance approach, not based of working with customers and building a project on computer previewing.