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映像を円柱状に変形して、それぞれで回転する。
Deform the images into cylinders and rotate on each one.
元動画：https://www.pexels.com/ja-jp/video/2441168/
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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; vector<ofMesh> mesh_list; vector<ofMesh> frame_list; }; |
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#include "ofApp.h" //-------------------------------------------------------------- void ofApp::setup() { ofSetFrameRate(30); ofSetWindowTitle("openFrameworks"); ofBackground(239); ofSetLineWidth(3); ofEnableDepthTest(); this->cap.open("D:\\MP4\\Pexels Videos 2441168.mp4"); this->cap_size = cv::Size(720, 1080); 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); float radius = (this->cap_size.width / PI); int deg_span = 1; int y_span = 120; for (int y = 0; y < this->cap_size.height; y += y_span) { ofMesh mesh, frame; frame.setMode(ofPrimitiveMode::OF_PRIMITIVE_LINES); for (int deg = 0; deg < 360; deg += deg_span) { int index = mesh.getNumVertices(); vector<glm::vec3> vertices; vertices.push_back(glm::vec3(radius * cos(deg * DEG_TO_RAD), radius * sin(deg * DEG_TO_RAD), y - this->cap_size.height * 0.5)); vertices.push_back(glm::vec3(radius * cos((deg + deg_span) * DEG_TO_RAD), radius * sin((deg + deg_span) * DEG_TO_RAD), y - this->cap_size.height * 0.5)); vertices.push_back(glm::vec3(radius * cos((deg + deg_span) * DEG_TO_RAD), radius * sin((deg + deg_span) * DEG_TO_RAD), y + y_span - this->cap_size.height * 0.5)); vertices.push_back(glm::vec3(radius * cos(deg * DEG_TO_RAD), radius * sin(deg * DEG_TO_RAD), y + y_span - this->cap_size.height * 0.5)); mesh.addVertices(vertices); frame.addVertices(vertices); int x = ofMap(deg, 0, 360, 0, this->cap_size.width); int next_x = ofMap(deg + deg_span, 0, 360, 0, this->cap_size.width); mesh.addTexCoord(glm::vec3(x, y, 0)); mesh.addTexCoord(glm::vec3(next_x, y, 0)); mesh.addTexCoord(glm::vec3(next_x, y + y_span, 0)); mesh.addTexCoord(glm::vec3(x, y + y_span, 0)); mesh.addIndex(index + 0); mesh.addIndex(index + 1); mesh.addIndex(index + 2); mesh.addIndex(index + 0); mesh.addIndex(index + 2); mesh.addIndex(index + 3); frame.addIndex(index + 0); frame.addIndex(index + 1); frame.addIndex(index + 2); frame.addIndex(index + 3); } this->mesh_list.push_back(mesh); this->frame_list.push_back(frame); } this->cap.set(cv::CAP_PROP_POS_FRAMES, 45 * 24); } //-------------------------------------------------------------- void ofApp::update() { ofSeedRandom(39); cv::Mat src; this->cap >> src; if (src.empty()) { this->cap.set(cv::CAP_PROP_POS_FRAMES, 45 * 24); return; } cv::cvtColor(src, src, cv::COLOR_BGR2RGB); cv::Mat(src, cv::Rect(600, 0, this->cap_size.width, this->cap_size.height)).copyTo(this->frame); this->image.update(); } //-------------------------------------------------------------- void ofApp::draw() { this->cam.begin(); ofRotateX(90); for (int x = -600; x <= 600; x += 600) { ofPushMatrix(); ofTranslate(x, 0, 0); for (int i = 0; i < this->mesh_list.size(); i++) { float z = (this->mesh_list[i].getVertex(0).z + this->mesh_list[i].getVertex(2).z) / 2; ofPushMatrix(); ofRotateZ(ofRandom(1000) - ofGetFrameNum() * ofRandom(5, 10)); this->image.bind(); ofSetColor(255); this->mesh_list[i].draw(); this->image.unbind(); ofSetColor(239); this->frame_list[i].drawWireframe(); ofPopMatrix(); } ofPopMatrix(); } this->cam.end(); } //-------------------------------------------------------------- int main() { ofSetupOpenGL(720, 720, OF_WINDOW); ofRunApp(new ofApp()); } |