[ Video ]
[ About ]
動画データを分割して、それぞれをひん曲げる。
Split and bend the video.
元動画：https://www.pexels.com/video/drawing-a-large-heart-figure-on-the-sand-of-a-seashore-3094026/
[ Source ]
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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; }; |
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#include "ofApp.h" //-------------------------------------------------------------- void ofApp::setup() { ofSetFrameRate(30); ofSetWindowTitle("openFrameworks"); ofBackground(239); ofSetColor(255); ofEnableDepthTest(); this->cap.open("D:\\MP4\\video5.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); this->image.update(); this->mesh_list.clear(); int x_span = 80; int y_span = 5; for (int x = this->cap_size.width * -0.5; x < this->cap_size.width * 0.5; x += x_span) { ofMesh mesh; for (int y = this->cap_size.height * -0.5; y < this->cap_size.height * 0.5; y += y_span) { int index = mesh.getNumVertices(); float z = ofMap(ofNoise(x * 0.01, y * 0.0015 + ofGetFrameNum() * 0.02), 0, 1, -100, 100); float next_z = ofMap(ofNoise(x * 0.01, (y + y_span) * 0.0015 + ofGetFrameNum() * 0.02), 0, 1, -100, 100); mesh.addVertex(glm::vec3(x, y, z)); mesh.addVertex(glm::vec3(x + x_span, y, z)); mesh.addVertex(glm::vec3(x + x_span, y + y_span, next_z)); mesh.addVertex(glm::vec3(x, y + y_span, next_z)); mesh.addTexCoord(glm::vec3(x + this->cap_size.width * 0.5, y + this->cap_size.height * 0.5, 0)); mesh.addTexCoord(glm::vec3(x + x_span + this->cap_size.width * 0.5, y + this->cap_size.height * 0.5, 0)); mesh.addTexCoord(glm::vec3(x + x_span + this->cap_size.width * 0.5, y + y_span + this->cap_size.height * 0.5, 0)); mesh.addTexCoord(glm::vec3(x + this->cap_size.width * 0.5, y + y_span + this->cap_size.height * 0.5, 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); } this->mesh_list.push_back(mesh); } } //-------------------------------------------------------------- void ofApp::draw() { this->cam.begin(); ofRotateX(180); for (auto& mesh : this->mesh_list) { this->image.bind(); mesh.draw(); this->image.unbind(); } this->cam.end(); } //-------------------------------------------------------------- int main() { ofSetupOpenGL(720, 720, OF_WINDOW); ofRunApp(new ofApp()); } |