Created
February 8, 2012 09:15
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ofLecture 2
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#include "testApp.h" | |
//-------------------------------------------------------------- | |
void testApp::setup(){ | |
ofBackground(0, 0, 0); | |
ofEnableAlphaBlending(); | |
ofEnableSmoothing(); | |
ofSetFrameRate(30); | |
ofSetVerticalSync(true); | |
camWidth = 480; | |
camHeight = 360; | |
video.setVerbose(true); | |
video.initGrabber(camWidth, camHeight); | |
} | |
//-------------------------------------------------------------- | |
void testApp::update(){ | |
video.grabFrame(); | |
} | |
//-------------------------------------------------------------- | |
void testApp::draw(){ | |
ofSetColor(255, 255, 255); | |
video.draw(0, 0); | |
unsigned char* px = video.getPixels(); | |
for (int i = 0; i < camWidth; i += 10) { | |
for (int j = 0; j < camHeight; j += 10) { | |
unsigned char r = px[j*3*camWidth+i*3]; | |
unsigned char g = px[j*3*camWidth+i*3+1]; | |
unsigned char b = px[j*3*camWidth+i*3+2]; | |
// r = 255 - r; | |
// g = 255 - g; | |
// b = 255 - b; | |
float f = (255 - (r + g + b)) / 3 * 0.005; | |
ofSetColor(r, g, b, 128); | |
ofCircle(camWidth + i, j, 10.0 * f, 10.0 * f); | |
} | |
} | |
} | |
//-------------------------------------------------------------- | |
void testApp::keyPressed(int key){ | |
} | |
//-------------------------------------------------------------- | |
void testApp::keyReleased(int key){ | |
} | |
//-------------------------------------------------------------- | |
void testApp::mouseMoved(int x, int y ){ | |
} | |
//-------------------------------------------------------------- | |
void testApp::mouseDragged(int x, int y, int button){ | |
} | |
//-------------------------------------------------------------- | |
void testApp::mousePressed(int x, int y, int button){ | |
} | |
//-------------------------------------------------------------- | |
void testApp::mouseReleased(int x, int y, int button){ | |
} | |
//-------------------------------------------------------------- | |
void testApp::windowResized(int w, int h){ | |
} | |
//-------------------------------------------------------------- | |
void testApp::gotMessage(ofMessage msg){ | |
} | |
//-------------------------------------------------------------- | |
void testApp::dragEvent(ofDragInfo dragInfo){ | |
} |
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