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#pragma once #include "ofMain.h" #include "opencv2/opencv.hpp" class ofApp : public ofBaseApp { public: void setup(); void update(); void draw(); void keyPressed(int key) {}; void keyReleased(int key) {}; void mouseMoved(int x, int y) {}; void mouseDragged(int x, int y, int button) {}; void mousePressed(int x, int y, int button) {}; void mouseReleased(int x, int y, int button) {}; void windowResized(int w, int h) {}; void dragEvent(ofDragInfo dragInfo) {}; void gotMessage(ofMessage msg) {}; ofEasyCam cam; cv::VideoCapture cap; cv::Size cap_size; ofImage image; cv::Mat frame; }; |
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#include "ofApp.h" //-------------------------------------------------------------- void ofApp::setup() { ofSetFrameRate(60); ofSetWindowTitle("openframeworks"); ofBackground(239); ofSetLineWidth(2); ofEnableDepthTest(); this->cap.open("D:\\MP4\\Aerial Shot Of City.mp4"); this->cap_size = cv::Size(1280, 720); this->image.allocate(this->cap_size.width, this->cap_size.height, OF_IMAGE_COLOR); this->frame = cv::Mat(cv::Size(this->image.getWidth(), this->image.getHeight()), CV_MAKETYPE(CV_8UC3, this->image.getPixels().getNumChannels()), this->image.getPixels().getData(), 0); } //-------------------------------------------------------------- void ofApp::update() { cv::Mat src; this->cap >> src; if (src.empty()) { this->cap.set(cv::CAP_PROP_POS_FRAMES, 0); return; } cv::cvtColor(src, src, cv::COLOR_BGR2RGB); cv::resize(src, this->frame, this->cap_size); cv::flip(this->frame, this->frame, 0); this->image.update(); } //-------------------------------------------------------------- void ofApp::draw() { this->cam.begin(); ofTranslate(0, -320); for (int x = -640; x < 640; x += 40) { ofMesh face, line; line.setMode(ofPrimitiveMode::OF_PRIMITIVE_LINES); for (int y = 0; y <= ofGetHeight(); y += 1) { auto noise_value = ofNoise(x * 0.005, y * 0.001 + ofGetFrameNum() * 0.005); float angle = 0; if (noise_value > 0.75) { angle = ofMap(noise_value, 0.75, 1.0, 0, PI * 0.3); } if (noise_value < 0.25) { angle = ofMap(noise_value, 0.25, 0.0, 0, PI * -0.3); } auto rotation = glm::rotate(glm::mat4(), angle, glm::vec3(1, 0, 0)); face.addVertex(glm::vec4(x - 20, y, 0, 0) * rotation); face.addVertex(glm::vec4(x + 20, y, 0, 0) * rotation); face.addTexCoord(glm::vec3(x + 640, y, 0)); face.addTexCoord(glm::vec3(x + 640 + 40, y, 0)); line.addVertex(glm::vec4(x - 20, y, 0, 0) * rotation); line.addVertex(glm::vec4(x + 20, y, 0, 0) * rotation); if (face.getNumVertices() > 2) { face.addIndex(face.getNumVertices() - 1); face.addIndex(face.getNumVertices() - 2); face.addIndex(face.getNumVertices() - 4); face.addIndex(face.getNumVertices() - 1); face.addIndex(face.getNumVertices() - 3); face.addIndex(face.getNumVertices() - 4); line.addIndex(line.getNumVertices() - 1); line.addIndex(line.getNumVertices() - 3); line.addIndex(line.getNumVertices() - 2); line.addIndex(line.getNumVertices() - 4); } } line.addIndex(0); line.addIndex(1); line.addIndex(line.getNumVertices() - 1); line.addIndex(line.getNumVertices() - 2); ofSetColor(255); this->image.bind(); face.draw(); this->image.unbind(); ofSetColor(39); line.drawWireframe(); } this->cam.end(); } //-------------------------------------------------------------- int main() { ofSetupOpenGL(720, 720, OF_WINDOW); ofRunApp(new ofApp()); } |