Invitation to the light show and a bit of insight from the future site "Circle of Light" in Moscow

    From September 21 to 25, the eighth Moscow International Circle of Light Festival will take place. And it was this year that Epson first became its technical partner (i.e., provided one of the sites with projection “iron”).

    Further, I will tell you a little more about the event, about the specific site on which our projectors are used, and also show some “insider” photos from the nightly preparations for the event, where you can see how such a complex projection is actually implemented.

    What where When

    The Circle of Light festival is an annual event where specialists in light and audiovisual art transform the architectural image of the capital. This year it will be held from 21 to 25 September.

    There are seven sites at the festival: the rowing canal, Tsaritsyno, Digital October, Victory Museum, Kolomenskoye, Theater Square and the Mir Concert Hall. Admission to all sites is free!

    Schedule of the site in Tsaritsyno (referred to in this post): daily from 19:30 to 23:00 cyclical video mapping on the facade of the Great Tsaritsyn Palace and light installations using augmented reality technology. And on September 24, the performance of Dmitry Malikov under video mapping at the Big Tsaritsyn Palace. Beginning at 20:00.

    Detailed program and addresses - on the site .

    Why it is worth seeing and why we are so pleased

    A projection show at the site in Tsaritsyno is the first Epson installation of this scale in Russia! Both in technique and in the amount of equipment used. It will involve 30 (thirty!) Epson EB-L1755U installation projectors with a laser light source, which will create impressive video mapping on the walls of the Great Tsaritsyn Palace.

    We have already written about laser installation projectors on Habré , so I ’ll just briefly remind you what the devices are remarkable for.

    Epson EB-L1755U - laser installation projector with a brightness of 15,000 lumens and a contrast of 2,500,000: 1. The service life of a laser light source is up to 56,000 hours depending on the operation mode, which guarantees a long uptime (the dream of any installer and distributor).

    Like any other Epson projector, the Epson EB-L1755U model uses three-matrix 3LCD technology, which we also talked about . This allows you to display an image on the screen or an object without any rainbow, as well as to be sure that the brightness of each of the RGB colors will not suffer when the projector switches to the maximum brightness mode.

    The peculiarity of the show in Tsaritsyno is that the installer installs three projectors in a row and reduces the image in such a way as to obtain a luminous flux of up to 45,000 lumens !

    We are preparing a video report from the event, but for now - especially for habravchan - a couple of “insider” photos from the preparation process, which was performed daily on the site at night, starting this Monday.

    Promised "insider"

    Photos taken directly from the camera, do not blame me for the quality:

    The reduction of the triple block projectors "on the tower." The engineer uses the grid to combine images from three projectors combined into a common local area network.

    It looks like a grid for information near. The grid can be made red, blue or green (which sometimes helps to reduce projectors. For example, in this case it would be possible to deduce the red, blue and green grids and, when mixing them, get ... white! The task is to minimize deviations from white, which will provide accurate combining images from projectors.)

    Appendix “Epson Professional” for the tasks of setting up installation projectors (including the network). For precise alignment of projections, you can use correction at four corners, and then, if necessary, use fine tuning from 9 to 70 points in the projection area.

    Alignment of the scanned 3D model of the ensemble and adjustment of the stitching. By the way, the 3D model was obtained by laser scanning (see LIDAR ).

    This is the test target that has not yet been calibrated over the entire length of the ensemble. The projection consists of six sections, which are “stitched” together throughout the building.

    And this is how the “fitting” of the 3D-model is performed on real buildings. The accuracy that is required to combine the 3D model with the building is impressive. Here the projector’s optics plays an important role, the geometric distortions of which should be extremely small.

    Such are the "behind the scenes" details.

    Come to the festival "Circle of Light", Tsaritsyno playground, to see everything with your own eyes. And who is far away or who is too lazy to go - connect to the live broadcast of the festival .

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