pp-now
Quick setup for single-pass GLSL post-processing with gl-now
Last updated 7 years ago by
hughsk .
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pp-now 
Quick setup for single-pass GLSL post-processing with gl-now.
Usage
require('pp-now')(shell, fragment[, vertex])
Takes the game-shell returned by gl-now, in addition to a fragment shader which takes the following required variables:
uniform sampler2D frame;- the screen as a 2D texture.varying vec2 uv;- the coordinates on the screen from 0 to 1. Alternatively, you can usegl_FragCoord.xyfor precise pixel coordinates.
shell.on('pp-render', frame(t))
Instead of listening to gl-render, listen to pp-render to draw to the post-processing framebuffer.
shell.on('pp-uniforms', frame(shader))
Passes the gl-shader being used for post-processing so that you can update your own additional uniforms manually.
Note that if you're already using framebuffers in your demo it might break - in which case, you probably won't have much trouble adding post-processing yourself :)
License
MIT. See LICENSE.md for details.
Current Tags
- 0.1.0 ... latest (7 years ago)
hughsk