Connecting multiple projectors to a single computer

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In this article we will look at the best solutions for connecting multiple projectors to a single computer. The information will also be useful if you want to connect multiple screens (monitors) to one computer.

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Projection on the wall with three projectors
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Variants of images from multiple projectors

Depending on the task, you may need to create several identical images, create several different images, or create a single image with several projectors (panoramic projection). We'll go through all 3 modes in sequence.

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1. Single image and multiple projectors (panoramic projection)
2. Several different images on the projectors
3. Duplicate video signal to projectors

Single image and multiple projectors (panoramic projection)

In order to combine several projector images into one whole (to create a panoramic projection) we recommend our customers to use Radeon and FirePro series graphics cards with Eyefinity technology. Some models of these graphics cards allow you to work simultaneously with 2-6 projectors and blend images into one.

Nvidia video cards with Surround technology are also suitable for 2-3 projectors (contact us if you need help choosing a model).

Eyefinity allows you to use multiple projectors or monitors to create a single desktop for your computer. The projectors (or monitors) must have the same resolution. Examples of panoramic resolution:
  • 2 projectors with 800x600 resolution in Eyefinity mode will create a 1600x600 desktop. Three of these projectors would create a 2400x600 desktop
  • At a resolution of 1024x768, 2 projectors will produce a desktop of 2048x768, 3 projectors will produce a desktop of 3072x768
  • At a resolution of 1280x800, 2 projectors will create a 2560x800 screen, 3 projectors will create a 3840x800 screen
  • At 1920x1080 resolution, 2 projectors will create a 3840x1080 screen, 3 projectors will create a 5760x1080 screen

Vertical positioning of the projectors is also possible (each projector will produce a vertical image)
In the Windows setup, you will not see multiple screens, but one screen with this resolution. Full-screen programs will run on all projectors with a single image.

When selecting a graphics card, consider whether the video card supports Eyefinity technology, how many screens are supported, etc.

We provide our customers with technical support and assistance in equipment selection and installation.
Single projection of 3 projectors
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The easiest solution is to create a panoramic projection on 2-3 projectors. Most modern Radeon R7 and R9 series graphics cards support Eyefinity technology on 2-3 projectors.

If you connect the third and subsequent projectors to the video card, you need to use DisplayPort or Mini DisplayPort (these two ports should not be confused).
Since there is no DisplayPort and Mini DisplayPort input port among popular projector models now (2017), it is required to use adapters from these ports to HDMI, VGA or DVI. At the same time, you should pay close attention to the type of adapter, it must be active, not passive (standard). It is best to buy adapters that explicitly state that it is suitable for Eyefinity. On foreign sites, it is usually sufficient to specify the keywords "eyefinity", "active", "adapter" and the names of the ports needed.

After creating Eyefinity mode, the task is to merge images from projectors and combine projections.

You can try to do it without using additional tools, you just physically dock 2 projections side by side by changing the projector position, lens zoom and projector settings. There is nothing particularly difficult, but it is quite difficult (but possible) to achieve a good quality joint (so as not to see the joint), as joints can be visible due to a slight offset of projections or overlap of one projection on another.

In order to save money, this is a popular solution. Even if the joints are slightly visible, it is often not critical. With plasmas and screens, for example, the joints are always visible and more prominent.

There is a professional solution for seamless blending of projectors into a single image. It implies using special equipment or software. In this case the quality of stitching is high and the joints are not visible.

Initially the projection of one projector overlaps with the projection of another. Overlap in width is about 10%. Then, using special markers, images are matched, a gradient from transparent to opaque is adjusted, and the brightness of the image is adjusted at the junction.

We can help with this quality stitching - the cost of the service ranges from 60 thousand rubles. We will provide software that allows you to combine several projectors into a single image, and we will advise on setting up seamless blending of projections.

Contact us:
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+7 (929) 383-33-73 WhatsApp, Viber
info@pogumax.ru

Several different images on the projectors

You can connect 2 or more projectors to one computer and display different content on different projectors. To do this, when multiple projectors are connected to a computer, select "Extend These Screens" in the Windows Display Setup.

In this mode, programs that run in full screen will run on one of the projectors. Windows has a keyboard shortcut for moving a full screen program to another monitor: Ctrl + Win + left or right arrow.
3 projectors with different images. Projection adjusted to the interior in POGUMAX Designer
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Our software for projection interior design POGUMAX Designer has features to automatically set the program to run on the desired projector (contact us if you have such a task).

You can achieve the same result as in the video - 3 projections on the walls by connecting 3 projectors to one computer.

If applications are not running in full screen mode, they can be dragged from one screen to another.

If you want to connect 2 projectors to one laptop, one projector via HDMI, the other via VGA, then please note that most video cards on laptops do not support 3 screens (2 projectors + laptop screen) at the same time, so you will have to select any two screens as active. It can be 1 projector + laptop screen or 2 projectors (with the laptop screen being black).

Duplicating the video signal to projectors

You can use video splitters (video splitters) to duplicate images to projectors. These are devices that accept one signal from a computer and have multiple ports on the output that will feed that video signal to projectors or monitors.

You can also duplicate video from your computer by connecting, for example, one projector to the HDMI output and the other to VGA. In Windows, you can set the display mode on the screens, select "Duplicate These Screens".
Duplicating the image to 2 projectors
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We create beautiful projections in the interiors of cafes, restaurants, banquet halls, kindergartens and other public places. We set up the interaction of the projection with paintings, furniture and other interior objects. Since interiors are usually not identical, only one projector will interact with the interior when duplicating images. To get a better understanding of how this works, watch the video below with different projection options. This is why image duplication mode is very rarely used. It is suitable for projection on bare walls or screens.
POGUMAX 2020 presentation
We have developed a program for video projections indoors, which can be used by anyone without special skills.

Once you install a set with one or more projectors, and then you can decorate your space with video projections on a daily basis.
Presentation POGUMAX 2020 – software for interior projection mapping

In the video:
1) examples of projections in sensory rooms, kindergartens, restaurants, apartments, events, theaters, projection on a cake, dress, 3D objects;
2) how the video projection is adjusted to the interior;
3) peculiarities of video projection software POGUMAX Designer, a library of 1200 animations for projection;
4) how long it took grandma to create the projection design;;
5) technical details: about projectors, installation and conditions for video projection;
6) POGUMAX team, our products, support, reviews.

More videos in video gallery.
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Cost of the POGUMAX Designer program

Basic
Extended
Unlimited
Lifetime license
$679
$1079
$1639
One month rent
$226
$360
$546
Projectors support
1
1
1
Animations amount
500
Software updates
-
1 year
Lifetime
Animations in Basic package (573)
Space (65)
Sea world (58)
Paradise Island (2)
For children (101)
Kaleidoscopes (2)
Landscapes (58)
Animals (51)
Romantic (3)
Patterns and abstractions (looped) (97)
VJ-effects (looped) (3)
VJ-effects (unlooped) (3)
Cities (3)
Food (3)
Christmas & New Year (99)
Halloween (3)
Celebration (3)
Nature (3)
Sport (3)
Winter (3)
Spring (3)
Summer (3)
Autumn (2)
Other (2)
Animations in Extended package (1027)
Space (65)
Sea world (58)
Paradise Island (20)
For children (101)
Kaleidoscopes (42)
Landscapes (58)
Animals (51)
Romantic (99)
Patterns and abstractions (looped) (97)
VJ-effects (looped) (113)
VJ-effects (unlooped) (3)
Cities (3)
Food (3)
Christmas & New Year (99)
Halloween (42)
Celebration (21)
Nature (45)
Sport (25)
Winter (18)
Spring (20)
Summer (22)
Autumn (20)
Other (2)
Animations in Unlimited package (1230)
Space (65)
Sea world (58)
Paradise Island (20)
For children (101)
Kaleidoscopes (42)
Landscapes (58)
Animals (51)
Romantic (99)
Patterns and abstractions (looped) (97)
VJ-effects (looped) (113)
Patterns and abstractions (unlooped) (64)
VJ-effects (unlooped) (60)
Cities (33)
Food (45)
Christmas & New Year (99)
Halloween (42)
Celebration (21)
Nature (45)
Sport (25)
Winter (18)
Spring (20)
Summer (22)
Autumn (20)
Other (12)
✓ POGUMAX Designer software - perpetual license for 1 projector
✓ 500 animations
✓ POGUMAX Designer software - perpetual license for 1 projector
✓ 1000 animations
✓ 1-year software updates
✓ POGUMAX Designer software - perpetual license for 1 projector
✓ 1200 animations
✓ Unlimited software update
Additional options for POGUMAX Designer software
Additional
projector

$419
Additional year of updates

$329
Upgrade «Basic» to «Extended»

$529
Upgrade «Extended» to «Unlimited»

$609
Basic set
$1839
✓ Software for the Virtual Magic Room (interior projection mapping) - Basic package:
❖ Perpetual license for 1 projector
500 animations


✓ Short throw projector, 3500 lumens
✓ HDMI cable + Ceiling bracket
Learn more
Standard set
$2319
✓ Software for the Virtual Magic room - Extended package:
❖ Perpetual license for 1 projector
❖ 1000 animations

1-year software updates


✓ Short throw projector, 3500 lumens
✓ HDMI cable + ceiling bracket
Learn more
Standard set + laptop
$3019
✓ Software for the Virtual Magic room - Extended package:
❖ Perpetual license for 1 projector
❖ 1000 animations

1-year software updates


✓ Short throw projector, 3500 lumens
✓ Laptop
✓ HDMI cable + ceiling bracke
Learn more
Max set
$2989
Software for the Virtual Magic room - Unlimited package:
❖ Perpetual license for 1 projector
❖ 1200 animations

Unlimited software updates


✓ Short throw projector, 3500 lumens
✓ HDMI cable + ceiling bracke
Learn more
Max set + laptop
$3699
Software for the Virtual Magic room - Unlimited package:
❖ Perpetual license for 1 projector
❖ 1200 animations

Unlimited software updates

✓ Short throw projector, 3500 lumens
✓ Laptop
✓ HDMI cable + ceiling bracke
Learn more
Standard set with a laptop and 2 projectors
$5889
✓ Software for the Virtual Magic room - Extended package:
❖ Perpetual license for 1 projector
❖ 1000 animations

1-year software updates
Multi-projector use, up to 2 projectors


✓ Short throw projector, 3500 lm (2 pcs.)
✓ Laptop, connection up to 2 projectors
✓ HDMI cable (2 pcs) + ceiling bracket (2 pcs) + adapter
Learn more
Max set with a laptop and 2 projectors
$6559
Software for the Virtual Magic room - Unlimited package:
❖ Perpetual license for 1 projector
❖ 1200 animations

Unlimited software updates

Multi-projector use, up to 2 projectors

✓ Short throw projector, 3500 lm (2 pcs.)
✓ Laptop, connection up to 2 projectors
✓ HDMI cable (2 pcs) + ceiling bracket (2 pcs) + adapter
Learn more
Max set with a PC and 3 projectors
$8149
Software for the Virtual Magic room - Unlimited package:
❖ Perpetual license for 1 projector
❖ 1200 animations

Unlimited software updates

Multi-projector use, up to 3 projectors

✓ Short throw projector, 3500 lm (3 pcs.)
✓ PC, connection up to 3 projectors
✓ HDMI cable (3 pcs) + ceiling brackets (3 pcs) + adapter
Learn more
Basic set
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Standard set
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Standard set + laptop
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Max set
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Max set + laptop
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Standard set with a laptop and 2 projectors
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Max set with a laptop and 2 projectors
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Max set with a PC and 3 projectors
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We use short throw projectors in our sets. They are the perfect fit for use in small spaces ranging from 7 to 25 square meters and have the capacity to create large images of 3-8 meters wide from an average distance of 1.5-4 meters.

To consult you on projections size, please let us know your room size.

How many projectors will be needed in the room?

Our clients use from one to several projectors to cover one or more walls. We have prepared a material, in which we show variants of projections with different numbers of projectors - from 1 to 4.
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Projection design - create video projections in your room without technical skills
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