//--------------------------------------------------------------
void ofApp::setup()
{
// Use GL_TEXTURE_2D Textures (normalized texture coordinates 0..1)
ofDisableArbTex();
m_vignetteShader.load( "shaders/passthrough.vert", "shaders/vignette.frag" );
m_filmGrainShader.load( "shaders/passthrough.vert", "shaders/filmGrain.frag" );
m_blurShader.load( "shaders/passthrough.vert", "shaders/boxBlur.frag" );
m_sobelShader.load( "shaders/passthrough.vert", "shaders/sobel.frag" );
bool bUseWebcam = false;
if ( true == bUseWebcam )
{
m_webcam.initGrabber( 640, 480 );
m_texture = m_webcam.getTexture();
}
else
{
ofImage image( "images/image.jpg" );
m_texture = image.getTexture();
m_texture.setTextureMinMagFilter( GL_LINEAR, GL_LINEAR );
m_texture.setTextureWrap( GL_CLAMP_TO_EDGE, GL_CLAMP_TO_EDGE ); // this is important to keep clean edges on the blur
}
createFullScreenQuad();
m_blurRadius = 1.0f;
}
//called upon initialising - RT
void PostProcessing::init(int width, int height, string& vertexShaderFilename, string& fragmentShaderFilename)
{
createFramebuffer(width, height);
createShader(vertexShaderFilename, fragmentShaderFilename);
createFullScreenQuad();
}