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README.md

webg

This is a playground for my self directed curriculum on WebGL. I'm looking at lot at The Book of Shaders. More reference links below. I'd like to eventually have an explanatory comment for every line of code in each branch as well as add more branches. PRs welcome!

1-hello triangle - the hello world of openGL

hello triangle

as bare bones as it gets this is helpful: http://webglfundamentals.org/webgl/lessons/webgl-fundamentals.html

2-LOL - more than just triangles!

LOL

circles are hard to draw: http://engineering.ayasdi.com/2015/05/02/how-to-draw-a-filled-circle-in-webgl/ can't resist a shader toy: https://www.shadertoy.com/view/XsjGDt and this never gets old: http://i.imgur.com/iFctMlX.gif

3-taste the rainbow - animating colors

taste the rainbow

this is a pretty decent explaination of Uniform variables in GL

4-high school math - remembering linear algebra

high school math

these linear algebra videos from Khan Academy are a great way to remember SOHCAHTOA.

5-turn around flip it and reverse it - rotating the matrix

turnaround flipit and reverseit

i tried to rotate a world matrix to achieve this (which is the best practice) but I ended up rotating the vertices in the vertex shader; just to be different and illustrate different ways to attain desired results in GL land.

i guess this would have been a good branch to name after a The Matrix reference, but i went with Missy Elliot.

6-you spin me right round - interactive events and atan2

using atan2 to spin matrix to follow mouse movement.

7-move it along - rotate "model" and "camera"

Honestly... made this spin-y thing a while back and I'm not sure what to do with it at the moment.

8-boxing day - 3D spinning cube

adding some depth to the whole thing.

9-if you build it - wasm

wip: not sure how this will go

10-i am a fan - interactive visual of how circle is constructed

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