What is livestreaming? How does livestream work? What are the benefits of livestreaming?

Live streaming is a process that allows a user to share live video and audio content with others over the internet or television in real-time. The live stream can be either pre-recorded or live.

It is a method for delivering a video file in pieces, frequently from a distant storage location. Client devices do not need to download the entire video before playing it because only a few seconds of the file are sent over the internet at once.

When a video stream is sent over the Internet in real-time without being first recorded and stored, this is known as live streaming. Live streaming is a common practice in today’s world, including for TV shows, video game streams, and social media videos.

Imagine the difference between an actor performing a memorized monologue and an actor improvising a speech as the difference between regular streaming and live streaming. In the first case, the audience is informed after the content has been created and stored. Similar to live stream, in the latter, the audience sees the content as it is being created by the actor.

Broadcast live streams, which are one-to-many connections that are sent out to numerous users at once, are what are typically referred to as “live streaming.” Instead of the processes used by one-to-many live stream broadcasts, videoconferencing technologies like Skype, FaceTime, and Google Hangouts Meet operate on real-time communication (RTC) protocols.

How does livestream work?

The following are the primary actions that occur behind the scenes to explain how does livestream work:

• Video capture

Raw video data, or the visual data that a camera captures, is the foundation of live streaming. This visual data is stored inside the computer to which the camera is connected as digital data, which is essentially just 1s and 0s.

• Segmentation

Video contains a lot of digital information, so downloading a video file takes longer than downloading a quick PDF or an image.

All of the video data would have to be sent out over the Internet at once, which would not be feasible. Instead, streaming video is broken up into shorter segments that last a few seconds.

• Compression and encoding

The segmented video data is then encoded and compressed. The redundant visual information is eliminated in order to compress the data.

For instance, if the video’s first frame shows a person speaking against a gray background, the gray background won’t need to be rendered for any subsequent frames with the same background.

• CDN distribution and caching

The live stream needs to be made accessible to the hundreds of thousands or millions of viewers who want to watch it after it has been segmented, compressed, and encoded.

A CDN should distribute the stream so that it can be delivered to numerous viewers in various locations with minimal latency and high quality.

• Decoding and video playback

Every viewer of the stream receives the live stream from the CDN. The segmented video data is received, decoded, and decompressed by each user’s device.

The video then begins to play after the data has been translated into visual information by a media player on the user’s device, which may be an app or a video player built into the browser.

This is how livestream works from a technical perspective.

How to do personal live streaming?

The first thing to do is to decide what platform you want to host on. You can set up your own server, which is the best option but will cost you some money to get a server up and running.

There are also free options, such as YouTube and Twitch, but these are more difficult to manage and less flexible. After you have decided what you want to host on, you then need to set up your equipment to stream.

This includes a camera, a microphone, a video editing program and a streaming service. You can get all of these off the shelf, but most will be overpriced.

You can then get a base package of a streaming service, such as YouTube or Twitch, for less than $20. This will allow you to stream in 720p and you can also live stream with YouTube using your phone.

Wrapping up

Modern techniques are utilized by StudioZ to hasten the delivery of live streams. Some CDNs won’t start serving a video segment to users until the entire segment has been cached.

However, StudioZ is able to serve these segments to numerous viewers simultaneously as they load, saving the users valuable waiting time. Find out more about our live streaming services here.

What is Pixel Mapping?

In the World of Lampie, pixel mapping refers to the use of software to map and replay media, such as bitmaps or videos, on a set of lighting fixtures (also known as a grid or raster). The fixtures could be anything from moving spots to PAR cans to Birdies, but a popular and eye-catching technique is the use of color-mixing LED kits (including Pipeline, Versa Tube, or Color Web).

You essentially receive a low-resolution screen made of “pixels” of red, green, and blue LEDs to display your goodies. We will continue to use the RGB LED model in this article because it is simple to understand.

Pixel mapping doesn’t involve projecting media files onto a screen while controlling the projector from the lighting desk. The primary goal of mapping is to transform your collection of “simple” fixtures into a massive display.

Using pixel mapping, you could produce some amazing effects with a lengthy single strip of RGB LEDs or play a sizable image across a number of different elements. The “screen” doesn’t even need to be rectangular or even one entire surface.

How does pixel mapping work?

The pixel mapper treats each fixture as a separate pixel and transmits the appropriate data to the array (typically color and intensity).

Different DMX implementations are still frequently used to control lighting fixtures. You can see how even a small surface can consume hundreds of DMX addresses given that our LED “pixels” use up at least 3 DMX channels.

Some control systems and media servers use their own proprietary network protocol when communicating with each other. However, a standardized method is needed when communicating with the fixtures themselves. Currently, ARTNet, an open source protocol for sending multiple DMX universes, is used to send the majority of control signals. This has two options: it can be divided at the surface or put directly into a private control box for the LED system.

Pixel mapping is simply a tool. With pre-made or live rendered digital media, it enables you to easily create some complex effects. Programming a complex RGB level chase in 1000 steps is definitely preferable to this. It isn’t necessary for the LED “screen” to be in full color. Nothing prevents you from sending the output to dimmers linked to a grid of PARS.

What information does a pixel mapper need?

A pixel mapper needs to be able to determine the number of fixtures, the surface’s shape, and the fixtures’ locations. The fixture personalities of specific instruments can be included in media server pixel mapping software to assist with the DMX channels. The personalities come in handy for quickly assembling sizable arrays using widely available fixtures that can be divided into pixels.

To populate a buffer with information about a pixel, the pixel mapper needs to know:
● the format of the sample data
● the location of the sample data
● the location of the pixel data
● the location of the screen data
● the screen width and height the number of channels
● the type of the pixel data
● the type of the screen data
● the row stride, row offset etc.

Content for Pixel Mapping

It depends on the arrays they will be replayed on whether a piece of content is appropriate for pixel mapping. An XGA full-color image will not look very good across a really low-resolution grid, like our 9 PARs. Even though producing media content at the ideal resolution isn’t always necessary, it’s still critical to consider how the images will appear.

With a low-resolution array and some carefully selected higher-resolution media, amazing effects can be produced. But consider what 16 million colors on those 9 PAR Cans would look like! A little bit of a flashy, dim mess.

Pixel Mapping on the cheap

You probably want to test out pixel mapping without shelling out for expensive full-on media servers or Grand MAs. Many inexpensive lighting control programs, including the Cham Sys MagicQ PC, have some sort of pixel mapping feature. Similar to the system on the Grand MA, the onboard array control on the Cham Sys creates grids, applies fixtures, and maps images, text, and other effects to them.

The best way to experiment with this kind of digital lighting on a budget is to preview your pixel mapping. The chances of being able to set up a sizable array of genuine RGB LEDs to work with are slim, even with some free pixel mapping software. It can be difficult to find 9 workable PAR cans in some places!

Pixel Mapping Software

The possibilities for pixel mapping are numerous. As mentioned above, the majority of professional stage lighting consoles, including desks like the Grand MA, Avolites, ETC EOS, etc., have some degree of pixel mapping capability.

The Cham Sys MagicQ is a desk that I particularly like for a variety of reasons, and its pixel mapping functionality is no exception. Readers of On Stage Lighting will be aware of this.

In addition, the following software is connected to pixel mapping for performance lighting: Madrix, LightJams, Resolume Arena, etc.

3D Pixel Mapping

3D Pixel Mapping is a process that creates a three-dimensional representation of an object using a two-dimensional grid. It is used to create images on a computer screen, such as a virtual 3D model of an object, or to create an illusion of depth in a two-dimensional image.
The color of a pixel is determined by the wavelength of light that is reflected off the pixel. The longer the wavelength, the bluer the pixel will appear. The shorter the wavelength, the redder the pixel will appear.

Conclusion

Pixel mapping is a powerful tool that can be used to create stunning visual effects. It can be used to create an illusion of depth and dimension or to add visual interest to a scene. When used correctly, pixel mapping can be an extremely effective way to add impact to a scene.

Content can be manipulated in a variety of ways, which keeps it interesting and novel for viewers. Even though it may be the same building that has repeatedly been projected on, content is what gives each performance of the show a fresh feel.

We can identify four broad types of projection mapping content if we divide the available content types. Those four types of projection mapping are:

Architectural projection mapping

Architectural projection mapping involves projecting images onto buildings and other structures. The images are usually projected onto the side of a building or onto a large screen or canvas. It can be used for advertising, art, and entertainment.
There are many different types of architectural projection mapping. Some common types include:

● 2D projection mapping: This type of projection mapping projects images onto a two-dimensional surface.
● 3D projection mapping: This type of projection mapping projects images onto a three-dimensional surface.
● Panoramic projection mapping: This type of projection mapping projects images onto a panoramic surface.
● Spherical projection mapping: This type of projection mapping projects images onto a spherical surface.
● Cylindrical projection mapping: This type of projection mapping projects images onto a cylindrical surface.

Projectors for architectural projection mapping can be very expensive. However, there are many companies that offer projector rentals.
There are many different benefits to using architectural projection mapping. Some of the benefits include:
● It can be used to create a unique and eye-catching display.
● It can be used to advertise a company or product.
● It can be used to create a work of art.
● It can be used to entertain an audience.

Object projection mapping

Object projection mapping is the second type. Any item that comes to mind can be used here, including a product like a car, a landscape model, or any other thing. It can be applied to both those one-time events and long-term mapping installations.

Building mapping and adding video mapping to a product share a similar philosophy in that they both aim to highlight the product’s unique features and dazzle the audience with imaginative visuals. Since the projection’s surface area is limited and the audience is typically in close proximity to the object, there needs to be more focus on the details.

Sometimes it’s about focusing on a product’s special features or simply producing a wow effect to attract attention to the thing or thing. It is one of the best ways to create amazing shows and inspire people.

Interior projection mapping

Interior projection mapping is a projection technology used to turn objects of any 3D shape into a 2D display surface. It is often used for entertainment and advertising.

The process usually starts with a 3D model of the object to be mapped. This model is then used to generate a 2D image that can be projected onto the object. The projection can be either static or dynamic and can be used to create a variety of effects.

Static interior projection mapping can be used to create an illusion of depth or to change the apparent shape of an object. Dynamic mapping can be used to create animations or to interact with the audience.

Interior projection mapping is often used in conjunction with other technologies such as augmented reality or virtual reality.

Fulldome projection mapping

Undoubtedly, it is among the most complete and accurate projection mapping formats. This typically calls for a large pixel map, and setting it up can be time-consuming when considering the curves/edge blending.

But nothing compares to throwing a party inside a dome. It creates an immersive environment by engulfing viewers in mind-blowing content. Producing content for dome projection mapping might be challenging.

Wrapping up

When that happens, you can go to locations like StudioZ, where they have content designed specifically for dome projections. They are custom-made visuals created by VJs who are experts in audience engagement.

You can incorporate all different kinds of 3D projection mapping content from them into your performances. You will eventually spend less time and money.

Other use cases for 3D projection mapping content exist, which I have not covered in this article. Those are the four major types of projection or video mapping projects that I have discovered.

Projection mapping has been around for a while, but the technology has only recently advanced to the point where it can be used with animations.

What is projection mapping?

Projection mapping is a technique that utilizes the latest in video and projection technology to transform any surface into a projection screen of sorts. It differs from traditional projection screens in that it does not require a screen or screen projector. Instead, the projector is mounted onto the surface being projected onto, and the projector projects onto it.

History of project mapping

The concept of projection mapping is not new. It has been used by the advertising industry for many years, and the technology behind it has advanced over the last decade.
What is new, however, is the combination of projection mapping with art, dance, and live music.
The term “projection mapping” was coined by the French art collective “Le Laboratories” in 2005 with their installation “The Architect”.
The first major event to utilize projection mapping was the Glastonbury 2011 festival when the light show was projected onto the iconic pyramid stage.
Since then, projection mapping has been used in countless events and installations around the world.

How is projection mapping used?

The most common use of projection mapping is to create a stunning visual effect. The effect created by projection mapping is nothing short of amazing. It can turn an ordinary, everyday object into an extraordinary display of light and color.
Projection mapping can be used to create a variety of effects, including:
● 3D projection mapping: This is where the video is projected onto surfaces that are not traditional screens, such as buildings or objects. This can create the illusion of a 3D environment.
● Interactive projection mapping: This is where projection mapping is used to create an interactive experience, such as a video game or an educational experience.
● Immersive projection mapping: This is where projection mapping is used to create an immersive environment, such as a virtual reality experience.

How is projection mapping created?

There are two main methods used to create projection mapping. The first is through computer software, such as VDMX or Quartz Composer. These programs enable the user to create images and effects, to which the projector is then mapped.
The other method is to map the projector directly to the image. This can be done with a simple robot, or with a more complex one like the “Lumen”, which was created for the music video for Katy Perry’s song “ET”.
Projection mapping has the ability to create a truly unique and exciting visual experience for an audience. It is a very versatile tool that can be used in a wide variety of settings and
applications.

Where do you do projection mapping?

There is no one answer to this question, as projection mapping can be done in a variety of locations, depending on the specific project. Some common places where projection mapping is often used include buildings, bridges, and other large structures.
Additionally, projection mapping can also be used in more intimate settings, such as in art galleries or stage productions.

How to do projection mapping

There are several ways to do projection mapping, but most commonly, it is done by using a projector to project an image onto a surface, such as a wall or a screen. The projector is usually positioned above the surface, and the image is projected onto the surface from the projector.
Projection mapping can also be done by using a mirror to reflect the image from the projector onto the surface. This is often done for large surfaces, such as buildings.
To create the illusion of depth, projection mapping can also be done by using multiple projectors to project the same image onto different surfaces. This is called multi-projection mapping.

Process of projection mapping

There are four main steps in projection mapping:
● Pre-production – This is the planning stage, where the team decides what they want to projection map, and creates a storyboard or script.
● Projection design – In this stage, the team creates a 3D model of the surface that will be projection mapped. This model is used to design the projections.
● Calibration – The projection is calibrated to the surface. This step is important to make sure the projection is accurate.
● Mapping – The projection is mapped to the surface. This step can be done in real-time or offline.

Wrapping up

Projection mapping has become increasingly popular in recent years, due to its ability to turn any surface into a dynamic video display. This technology can be used for everything from advertising and event production to interior design and gaming.
If you’re interested in learning more about projection mapping, or if you’re looking for a projection mapping company to help you create an incredible experience, contact us today.