WebGL (Web Graphics Library) is a JavaScript API for rendering interactive 3D and 2D graphics within any compatible web browser without the use of plug-ins. WebGL does so by introducing an API that closely conforms to OpenGL ES 2.0 that can be used in HTML5 <canvas> elements.

webgl

JavaScript® (often shortened to JS) is a lightweight, interpreted, object-oriented language with first-class functions, most known as the scripting language for Web pages, but used in many non-browser environments as well such as node.js or Apache CouchDB. It is a prototype-based, multi-paradigm scripting language that is dynamic, and supports object-oriented, imperative, and functional programming styles.

javascript

We’ll cover per-vertex coloring, advanced use of vertex arrays, more drawing modes for building 3D models, perspective, textures, and lighting.
This course assumes prior knowledge in WebGL. 
**Note:** Check out [Create 3D Graphics in JavaScript Using WebGL](https://egghead.io/courses/create-3d-graphics-in-javascript-using-webgl) for an in depth introduction to WebGL if some of these concepts are feeling unfamiliar.

In this lesson we will apply a single color per vertex and see how those colors are interpolated across an entire triangle, making use of a new kind of shader variable. We will also see how enabling `gl.DEPTH_TEST` will give our model proper depth by having webGL pay attention to z-values.
**Note:**
This lesson assumes prior knowledge in WebGL. Check out [Create 3D Graphics in JavaScript Using WebGL](https://egghead.io/courses/create-3d-graphics-in-javascript-using-webgl) for an in depth introduction to WebGL if some of these concepts are feeling unfamiliar.

Apply varying colors per-vertex to WebGL triangles

In this lesson, we look at how to consolidate different data, such as position and color, into a single vertex array. This becomes more important as we keep adding attributes such as per-vertex data for lighting and textures. We will update the `stride` value in the `vertexAttribPointer` method to accommodate these changes.

Consolidate data into a single WebGL vertex array

In this lesson we actually handle several issues - perspective, clipping and aspect ratio. The perspective method that is used handles all of these issues.


Fix clipping and aspect ratio by implementing perspective in WebGL

In this lesson we start doing some more advanced modeling by connecting multiple triangles into a single surface with a simple for-loop. We will review the different modes WebGL has for drawing arrays. After reviewing, triangle strip will be used to create a complex mathematical 3D form.

Draw a complex 3D Model with WebGL Triangle Strips

This time we look at the last drawing mode, triangle fan, which can be useful for drawing different types of 3d forms. Combine this mode with [triangle strip](https://egghead.io/lessons/javascript-drawing-triangle-fans-in-webgl?course=intermediate-webgl) to creating complex models.

Draw more complex 3D Models using Triangle Fans in WebGL

In this lesson, we look at how to draw more complex shape by building a list of indices that define different shapes to draw. This lets us re-use vertices to draw different parts of the shape.

Draw a multicolored cube with WebGL drawElements

This video will cover how to load and apply textures to 3d forms in WebGL. This video scratches the surface of textures in WebGL. For more information on textures, check out the [MDN docs](https://developer.mozilla.org/en-US/docs/Web/API/WebGL_API) on WebGL.

Use an image to texture a WebGL object

An introduction to light sources in WebGL. We will start with an overview the different types of lighting in WebGL. This lesson will cover creating a directional light source of a certain color, setting normals on vertices, and use these two things to calculate the color of a surface at any point. 

Build Complex 3D models with WebGL

Keith Peters

Course Content