PROJECTION MAPPING EDGE BLENDING in QLab. What is Edge Blending?

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PROJECTION MAPPING EDGE BLENDING in QLab. What is Edge Blending? Edge blending is a common projection mapping technique that allows a projection designer to use multiple projectors to create one seamless projection for larger designs. In this video you will learn what edge blending is, why it exists, and how you can do it yourself using QLab. Whenever we have large projection designs we need to use multiple projectors. First instinct tells us to just line up the projector output but this is difficult to do in practice. Instead we overlap the images and blend the two sides together to create a seamless image spanning the entire surface.
Chapters:
0:00 - Intro
0:22 - Dealing with large areas
1:08 - Benefits of multiple projectors
1:25 - Image Butting
1:57 - Overlapping projector outputs
2:45 - Edge Blending Intro
3:12 - Edge Blending is Built In
3:50 - QLab Edge Blending Tutorial
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Опубликовано:

3 июл 2024

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Комментарии : 27

@TMKInteractive 3 года назад

Let us know if you have any suggestions for future videos!

@marcbackx6168 2 года назад

Hello, could you please make a video that clearly explains how to connect a Mac to a PC. I would like to send Resolume Arena via Qlab (on mac) on PC.

@robotbaxter1985 2 года назад

Yes!

@stephen.rutherford Год назад

How to use multiple projectors from various angles - like how Disney can light all sides of a cylindrical castle turret with a seamless image. Is that done via content creation with multiple sync'd video files or can the mapping software handle multiple "cameras" in the same scene?

@TMKInteractive Год назад

3D projection mapping is usually done by starting with a 3D model of the thing you are projection mapping. You then "flatten" it to make a UV texture. You create the content on this texture then a specialized projection mapping software (Watchout, Disguise, Mad Mapper) will wrap your content back around your 3D model as well as calibrate where your projectors are in the 3D coordinate space. In the areas where two or more projectors overlap on the 3D object the edge blending is very similar to what is explained in the video, but it is done at a projector output level, rather than a surface level as shown in this video.

@goldenthemerciless5669 2 месяца назад

wow, honestly the best explanation

@spaceshark Год назад

thank you very helpful! do you have any videos on putting three projectors together? (mounted horizontally - due to the size of our theater!). ugh!

@yvonnegarcia4674 2 года назад

Awesome work! I’m looking at Halloween Christmas projection home protracted - I love Disneyland new mapping technology they use for shows, I appreciate your awesome tutorials and education edge for someone at home!

@TMKInteractive 2 года назад

I really enjoy Disneyland's projections as well! It was why I got interested in learning projection mapping in the first place. :)

@sinem6729 2 месяца назад

This video is very useful, thanks a lot. My question is can we export the video in regular size, and later adjust in Q-lab to screen into two screens? Or should we export them dividing into two?

@sv443 4 месяца назад

One of the very few Videos that actually explain how to do this properly! Congrads! Question: Can you do this with 9 projectors (stack 3 by 3)?

@sv443 4 месяца назад

never mind... it's only for MAC. lol

@jasonparker1454 4 месяца назад

can you blend 4 projectors (2 x 2) in a sqaure with qlab as well?

@TrentPowell-zk6bs Месяц назад

We are trying to find someone to help us with a current project. We are trying to combine 12 projectors to display one large image. We are currently using Datapath FX4 devices to support this need. We need assistance to edge blend the 12 projectors to create one clean image. We’ve heard there is softwares that can help but don’t have any experience in this arena. The projectors we are using are the Viewsonic LS550wh. Do you have any experience by chance or know of someone who may be able to help? We would be happy to pay you of course. Thank you so much!

@saxman1815 2 года назад

Great video!! I was reading the comments above, but am unclear. Is there any way to achieve this with QLab using an image splitter? We’re trying to blend four projectors, but we don’t have four outputs available.

@TMKInteractive 2 года назад

If you have an image splitter that just duplicates the image it will not work. For QLab to work it will need to see each projector as a separate display.

@chrishayes962 Год назад

How much do you charge to edge blending projectors?

@777LuisAlejo 2 года назад

How are you connecting the projectors? Is it using a splitter, or two different connections?

@TMKInteractive 2 года назад

I used two separate connections to my MacBook Pro(two USB-C -> HDMI adapters). This allows QLab to see each projector as a separate display. There are some limitations on how many displays you can connect to a MBP however, some of them are hardware limitations(like the M1 mac products). If you need more displays you can check out the QLab system recommendations page where they list some ways to connect to more displays by using Blackmagic cards or EGPUs.

@777LuisAlejo 2 года назад

@@TMKInteractive thank you! The thing is I was using an HDMI Splitter but the computer was not registering both as separate projectors, but as one. Causing it to be a double image so I was never going to be able to blend them. Thank you again for confirming my theory.