Sharing My First Live Edge Blending Mapping

[pfelberg]

It was an university graduation cerimony. Behind 150 sitting graduates, ther was a 16m x 3.5m panel, a printed banner in other ocasions. Not this time. Two projectors were used to map a decorative animated background.

The edge blending setup was a little bit tricky and not as simple as the theory states.
I haven´t mastered it yet, specially the proper way to change values in order to match differences in luminosity and most specifically colors.
I didn´t have the opportunity to film that. Only to take a couple of pictures.
The blending was pretty ok but even at this distance you can notice difference in colors, from side to side.
Tips or suggestions for a better understanding of this process is very welcome.
Thank you!

[deepvisual]

decent projectors helps a lot.
DLPs made for blending.

[LXConcepts]

yeah your best bet is to get some high quality projos that edge blend in the projo itself.

Also you want projos that have similar lamp lives

Obviously you want to use two identical projectors.

[pfelberg]

decent projectors helps a lot.
DLPs made for blending.

Those were. Two 15K DLP projectors.

yeah your best bet is to get some high quality projos that edge blend in the projo itself.

Humm haven´t checked that tech yet.

Also you want projos that have similar lamp lives
Obviously you want to use two identical projectors.

Those were "brothers".

tks

[pfelberg]

Sharing My SECOND Live Edge Blending Mapping: a catastrophe!!!
Not to blame Arena.

I had my VGA Analog TH2G land to a friend and I got a new Digital version. The same I used in the FIRST case above. But yesterday, something went very, very wrong.
Usually, when I connect the TH2G to my MacBookPro, I get a new display described as 2400x600, no matter if I am using two or three projectors. Well, yesterday, the mac didn´t recognize it. It recognized as another standard display output with 1600x1200 pixels.
I switched to the PC and was able to make it work after a couple of hours. It seems that this Digital version is very sensitive about connections and "turning or" procedures.
Composition in Arena was perfect, but no matter what I tried, I was still getting a small black square on top, between two projectors. No mask, no cropping, nothing on composition, layers, whatsoever. It was definately something related to the TH2G and ruined my show. I ended up using just one projector, far away. Less luminosity, less resolution... damn.

[deepvisual]

Tips or suggestions for a better understanding of this process is very welcome.
Thank you!

i just did a weeks worth of this.
you need a light meter to do it properly, but they are hard to come by. otherwise you have to spend an hour or two on each projector balancing the uniformity, RGB global values & then the individual RGB values by eye.

more here - download the user manual
http://www.christiedigital.co.uk/emea/b ... #downloads

page 3-62 onwards