ofxAddons
local addon of Post Processing effects to use on divers elements during post processing phase
README
ofxAVPostProcessing
Repository to create a local addon for postProcessing visual effects using a single buffer pass.
addons.make should look like this : ``
cpp ../local_addons/ofxAVPostProcessing
</br>
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Description
Components
The effects shaders are :
cpp
//ofxPostProcessing bloom (not there yet) godrays
//dotFrag Delay (removed but was in this commit ( too heavy to use because of the 5 fbos)) HSB MirrorAxis ( with duplicated "matter" mirrored content at the back) Turbolence Twist Monochrome
//personal shaders (ofxKsmrFragmentFx, THREE.JS & custom) Invert Glitch Vertical noise noise edgeOnTop fringe halftone hole
Structure
The addon works with ofxGUI, that's the only dependency. It has been added as a local addon in order to get the exact same version.
The structure of the addon uses only one big shader, so no buffer swap.
I believe this is more effective, as I have tried to get the buffer swap to work, but it was giving me artefacts in the middle of the screen when using more than 8 shaders...
So the mainShader is structured with 3 main type of openGL functions :
UV coordinates modifications
individual UV coordinates offset per channel ( like Glitch or fringe)
color change
I created an
rgbFromOffset `` function which samples a texture and returns the color depending on the offset of each channel.The rest is classic.
Getting Started
Add this to your local addon folder. </br> Try the example.
Author
_pierre Tardif_ codingcoolsh.it :floppy_disk:
License
This project is licensed under the MIT License - see the LICENSE.md file for details.
Acknowledgments
ofxKsmrFragmentFx Three.js Neil Mendoza Nicola Pisenti