Most of the WebGL tutorials is targeting JavaScript developers, where the main focus is to explain structure of the graphics API. I have created an alternative introduction to WebGL for people already familiar with the graphics API.
The tutorial uses interactive code listings, which means that you are able to modify the code examples and instantly see the result. (The ability to do this is one of the major benefits of using JavaScript). The only catch is that errors are not handled very well (meaning not handled at all). Some code examples are only incomplete code snippets and hence cannot be previewed.
The tutorial is releasen on GitHub pages under the BSD 3-Clause License.
The WebGL for OpenGL Programmers tutorial is available here: http://mortennobel.github.io/WebGLForOpenGLProgrammers/
Morten Nobel's Blog 
Leave a Reply