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WebGL: Low-Layer of 3D Graphics


Every technological device that employs a user interface. Common devices that public use on daily basis include smartphones, computers and tablets, which all feature Graphical User interfaces, although it may seem that we have always had the ease of use of GUIs, the public only gained access to GUI by the help of Developers where they could use what we called WebGL JS. In this article, we provide an overview of web graphics library

What is WebGL?

WebGL is a JavaScript API based in the well-known OpenGL 3D Graphics Library, and it gives JavaScript plugin-free access to the graphics hardware via HTML5 Canvas element. It’s all thanks to webGL that we could include real-time 3D graphics in webpages. WebGL is widely supported by modern browsers, However its availability is dependent on other factors like GPU supporting it, The official WebGL website offers a simple test page also.

How do we use WebGL?

The low-level nature of WebGL API provides little on its own to produce used to desirable 3D graphics quickly, contributed to creation of libraries which are typically used to build things up in 3D graphics. Basic tasks such as loading scene graphs and 3D objects in the popular industry formats is also abstracted by the libraries to provide additional functionalities , A non exhaustive list of libraries that provide many high-level features which made a project called X3DOM to make X3D and VRML content running on WebGL

Content Creation

The rapid emergence of game engines in market including Unreal engine, unity provides attention of developing more light weight utility library just provides the vector and matrix math utilities for shaders.
It is sometimes used in conjunction with a WebGL specific extension called glUtils.js

There are also some 2D libraries built on top of WebGL like pixi.js. The web-GL based 2D libraries fall back to HTML5 canvas when WebGL is not available.< br/> The low-level nature of WebGL API, which provides little on its own to produce desirable 3D graphics quickly, contributed to creation of libraries which are typically used to build things up in 3D graphics.


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About Author
Hisham Elreedy is Digital Electronics Engineer, Graphics Designer, Blogger, Youtuber. Inspired to teach all he knows from his experience in studying undergraduate engineering by creating useful posts

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