Repository to create a local addon for postProcessing visual effects using a single buffer pass.
addons.make should look like this :
../local_addons/ofxAVPostProcessing
The effects shaders are :
//ofxPostProcessing
bloom (not there yet)
godrays
//dotFrag
Delay (removed but was in this [commit](https://github.com/pierrextardif/ofxAVPostProcessing/commit/d410ddca2bef8917a3ba58ce497674ad7c87da29) ( 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
holeThe 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.
Add this to your local addon folder.
Try the example.
- pierre Tardif codingcoolsh.it 💾
This project is licensed under the MIT License - see the LICENSE.md file for details.