added FAQ

Author: Krzysztof Palacz

FAQ

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+What is ShaderDSL.js? 
+
+ShaderDSL.js allows you to write GLSL shaders in plain JavaScript, instead of the C like (GLSL) language used today. 
+
+Why ShaderDSL.js? 
+
+We wanted to experiment with a more approachable way for web developers to author shaders, hence the use of JavaScript.
+
+Do I need to enable special flags or use a specific browser to play with ShaderDSL.js?
+
+No, ShaderDSL.js relies only on the portable, pure Javascript part of RiverTrail, and works in all the browsers with WebGL enabled (Firefox, Chrome, Safari).
+
+What is the status of ShaderDSL.js?
+
+The project is an experiment and not intended to be used in production. If you are interested in contributing, please do, we want this project to be a playground for new ways of authoring shaders.