LightAct 4 Early Access

We are extremely excited to be able to announce the arrival of LightAct 4!

We built LightAct 4 from the ground up and included hundreds of comments and suggestions we received from our users!

LightAct 4 has an entirely new user interface that brings massive improvements in workflow and ease-of-use. We also added support for more video codecs and asset formats.

On top of that, we included some brand new tools that will open up entirely new applications of our technology.


LightAct 4 is in closed-beta stage and if you’d like to apply for early access, please fill in the form below:

Apply for Early Access

If you are selected for Early Access, you will be asked to sign an NDA before we can send the software to you. Please note it may be a while until you hear back from us, but we promise you that you will.

For information on how we handle and manage the data collected on this form, please refer to our Privacy and Cookie Policy that you can access through the link at the bottom of this page.

Perfect Pixel Delivery

LightAct awarded the second Epic MegaGrant

Epic Games, the company behind Fortnite and Unreal Engine, awarded LightAct the second MegaGrant!

After receiving the first grant in the spring of 2020, we are very happy and incredibly grateful to have been selected for the second MegaGrant as well. This grant will allow LightAct to continue with the fast-paced development of LightAct’s Unreal Engine integration.

About LightAct

LightAct® is a media server solution, created by VISIBLE d.o.o., a creative technology company based in Ljubljana, Slovenia.

LightAct is behind some of the most advanced multi-media projects all around the world combining projection mapping and complex video and lighting installations.

About Unreal Engine

Epic Games’ Unreal Engine technology brings high-quality games to PC, console, mobile, AR and VR platforms. Creators also use Unreal for photorealistic visualization, live events, multi-media installations, interactive product design, film, virtual production, mixed reality TV broadcast and animated entertainment. 

About Epic Games

Founded in 1991, Epic Games is the creator of Fortnite, Unreal, Gears of War, Shadow Complex, and the Infinity Blade series of games. Epic’s Unreal Engine technology, which brings high-fidelity, interactive experiences to PC, console, mobile, AR, VR and the Web, is freely available at The Epic Games store offers a handpicked library of games, available at

LightAct Conversations

To better understand our users and how we could help you, we are launching LightAct Conversations! It is a simple conduit allowing you to (quickly) tell us what we could do better. 

And don’t worry, it will take 5 minutes of your time at most! 

So, we prepared a short form (only one question, really) which we would be very happy if you could fill in.  

Do you think you could do this?

If yes, please fill in the form below and click on Submit when you are done.

Creator Free

With the introduction of projection study and other similar functionalities we realized we needed to change our licensing a (tiny) bit.

So today, we are introducing Creator Free. It is a new default license which replaces Creator Trial and is used when there are no other LightAct licenses available.

Features of Creator Free

This means, you can use this license to work on your project without having to pay anything up until you need to remove the watermarks.

And even then, you have several exciting options: Weekly, Yearly or Perpetual licenses depending on whether you are doing a short-term live event or a fixed installations.

Projection Study

Projection Study is a new feature in LightAct 3.7.0 which allows you to analyze your projection setup and find the best possible approach.

You can enable Projection Study through the Visualizer menu.

Once there, you can select your projectors and projection objects and the switch between various render modes such as: Projected content, Shadow analysis, Illuminance analysis and Pixel size.

LightAct 3.7.0 is Released!

It’s been around a month since we released the preview of LightAct 3.7.0 and the feedback we received from you, our users, has been phenomenal!

We pushed ahead and ironed out a few glitches, added some new features and polished the user interface so that now, finally, we can release LightAct 3.7.0 into the wild!

Main features

The main focus of 3.7.0 is its integration with Unreal Engine. Most of the new features are explained in this video or on a dedicated page you can access by clicking on the button below.

In a nutshell though, the main features are:

For a more detailed list of new features, please click on the button below.

LightAct 3.7.0 Preview is Available!

After many months of hard work, we are thrilled to be able to release LightAct 3.7.0 to a select number of users. 

It has been a long journey, but a very fulfilling one. We believe LightAct 3.7.0 includes all the features we (and you, our users) identified as missing in the last few projects LightAct was involved with.

A particular focus of this release is the integration with Unreal Engine which took a giant leap forward. Read more about it on a dedicated page below.

We expect to iterate quickly through several versions in the next few weeks, which means a publicly released version of LightAct 3.7.0 should be released in a month or two.

If you would like to get early access to LightAct 3.7.0, please click on the button below and apply.

*This link has been removed as Early Access to LightAct 3.7.0 it’s not available anymore.

Meet Iris

Meet Iris. LightAct's eyes.

Just as projects involving LightAct, keep on growing in scale, so do the tools need to become faster and the workflow more seamless. 

This was the main reason for developing Iris – LightAct’s new computer vision system that allows LightAct to understand the world around it.

It allows you to calibrate dozens of projectors in just a few moments, which is already a huge advantage when you need to calibrate several dozens of them in a short time span. 

On top of that, it also solves another problem. That of incorrect positioning of objects. Iris allows you to get a point cloud of your scene and you can use it, also in LightAct, to adjust the position of your virtual objects so that they are placed precisely where their physical twins are.

Iris is available now.

3.7.0. Closed Beta

For the past few weeks, we’ve been extremely hard at work on LightAct 3.7.0. It will include an entirely new workflow combining the best of Unreal Engine and LightAct and it will make it much easier to project Unreal Engine content.

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