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#include "ofApp.h"
//--------------------------------------------------------------
void ofApp::setup(){
shader.load("shader");
backgroundImage.load("../../../gui/bin/data/funfair/IMG_2893.JPG");
foregroundImage.load("../../../gui/bin/data/funfair/IMG_2890.JPG");
maskFbo.allocate(ofGetWidth(), ofGetHeight());
// Clear the FBO's
// otherwise it will bring some junk with it from the memory
maskFbo.begin();
ofClear(0,0,0,255);
maskFbo.end();
keyMinDist=0.1f;
keyMaxDist=0.2f;
keyColour=ofColor(200,40,0);
}
//--------------------------------------------------------------
void ofApp::update(){
}
//--------------------------------------------------------------
void ofApp::draw(){
ofSetColor(255);
//better to scale first then mask, or visa versa?
shader.begin();
shader.setUniform4f("keyColour",keyColour);
shader.setUniform1f("keyMinDist",keyMinDist);
shader.setUniform1f("keyMaxDist",keyMaxDist);
shader.setUniform1f("time",2.0f+sin(ofGetElapsedTimef()));
shader.setUniformTexture("backgroundTex", backgroundImage.getTexture(), 1 );
shader.setUniformTexture("foregroundTex", foregroundImage.getTexture(), 2 );
foregroundImage.draw(0, 0,ofGetWidth(),ofGetHeight());
//seems to make no difference if we draw foreground or background image
shader.end();
}
//--------------------------------------------------------------
void ofApp::keyPressed(int key){
}
//--------------------------------------------------------------
void ofApp::keyReleased(int key){
}
//--------------------------------------------------------------
void ofApp::mouseMoved(int x, int y ){
}
//--------------------------------------------------------------
void ofApp::mouseDragged(int x, int y, int button){
}
//--------------------------------------------------------------
void ofApp::mousePressed(int x, int y, int button){
keyColour = foregroundImage.getColor(
x*(foregroundImage.getWidth()/ofGetWidth()),
y*(foregroundImage.getHeight()/ofGetHeight())
);
}
//--------------------------------------------------------------
void ofApp::mouseReleased(int x, int y, int button){
}
//--------------------------------------------------------------
void ofApp::mouseEntered(int x, int y){
}
//--------------------------------------------------------------
void ofApp::mouseExited(int x, int y){
}
//--------------------------------------------------------------
void ofApp::windowResized(int w, int h){
}
//--------------------------------------------------------------
void ofApp::gotMessage(ofMessage msg){
}
//--------------------------------------------------------------
void ofApp::dragEvent(ofDragInfo dragInfo){
}
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