Artists. Gallery. Instituições. The Ganzfeld. V&A - Modernism. Airtight News [software] I recently started playing with shaders in three.js and I wanted to share some of what I’ve discovered so far. Shaders are the ‘secret sauce’ of modern graphics programming and understanding them gives you a lot of extra graphical fire-power. For me the big obstacle to learning shaders was the lack of documentation or simple examples, so hopefully this post will be useful to others starting out.
This post will focus on using pixel shaders to add post-processing effects to Three.js scenes. This post assumes you already know the basics of using Three.js. What is a Shader? A Shader is a piece of code that runs directly on the GPU. The big conceptual shift when considering shaders is that they run in parallel. There are 2 main types of shaders – vertex shaders and pixel shaders. Vertex Shaders generate or modify 3D geometry by manipulating its vertices.
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