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ofxVFX[WIP]

Description

ofxVFX is an openframeworks addon for visual effects.

Environment

  • openFrameworks 0.10.0

Usage

  • Copy the shaders/ofxVFX/ directory to your bin/data/ directory.

  • Change your main.cpp to use programmable shader.

int main()
{
    ofGLWindowSettings s;
    s.setGLVersion(4, 1); // or the version you use
    s.setSize(1920, 1080);
    ofCreateWindow(s);
    
    ofRunApp(new ofApp());
}
  • Declare an instance of ofxVFX
ofxVFX mVFX;
  • In your setup() function, call mVFX.addPass<ofxVFX::RenderPass>() to add the effect pass and then call mVFX.generate(width, height) to setup each effect.
mVFX.addPass<ofxVFX::BloomPass>();
mVFX.addPass<ofxVFX::OpticalFlowPass>();
mVFX.addPass<ofxVFX::CRTPass>();
mVFX.addPass<ofxVFX::EdgePass>();
mVFX.addPass<ofxVFX::SymmetryPass>();
mVFX.addPass<ofxVFX::StreakPass>();
mVFX.addPass<ofxVFX::NoiseWarpPass>();
mVFX.addPass<ofxVFX::CAPass>();
mVFX.addPass<ofxVFX::InvertPass>();
mVFX.addPass<ofxVFX::MNCAPass>();
mVFX.addPass<ofxVFX::InkPass>();
mVFX.addPass<ofxVFX::ZoomBlurPass>();

mVFX.generate(width, height);
  • You have to call mVFX.update(time) function in rendering loop to update effects.
mVFX.update(ofGetElapsedTimef());
  • Render your scene between mVFX.begin() amd mVFX.end().
mVFX.begin();

// some codes to render scene

mVFX.end();
  • Call mVFX.draw(0, 0, width, height) in your draw() function.
void draw()
{
    mVFX.draw(0, 0, width, height);
}
  • You can change effect parameters like below. Check the example for more info!
// Bloom
mVFX.getRenderPassPtr(int renderPassIndex)->setBloomBlurScale(mBlurScale);

Reference