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カメラ追従。
Tracking camera.
[ Source ]
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#pragma once #include "ofMain.h" 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; ofMesh face, frame; }; |
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#include "ofApp.h" //-------------------------------------------------------------- void ofApp::setup() { ofSetFrameRate(60); ofSetWindowTitle("openframeworks"); ofBackground(239); ofEnableDepthTest(); this->frame.setMode(ofPrimitiveMode::OF_PRIMITIVE_LINES); } //-------------------------------------------------------------- void ofApp::update() { ofSeedRandom(39); this->face.clear(); this->frame.clear(); frame.setMode(ofPrimitiveMode::OF_PRIMITIVE_LINES); auto param = glm::vec3(15, 0, 0); auto noise_seed = glm::vec3(ofRandom(1000), ofRandom(1000), ofRandom(1000)); for (int i = 0; i < 500; i++) { auto location = glm::vec3( ofMap(ofNoise(noise_seed.x, (i + ofGetFrameNum()) * 0.01), 0, 1, -500, 500), ofMap(ofNoise(noise_seed.y, (i + ofGetFrameNum()) * 0.01), 0, 1, -500, 500), ofMap(ofNoise(noise_seed.z, (i + ofGetFrameNum()) * 0.01), 0, 1, -500, 500)); this->face.addVertex(location + param); this->face.addVertex(location - param); this->face.addColor(ofColor(ofMap(i, 0, 500, 239, 39))); this->face.addColor(ofColor(ofMap(i, 0, 500, 239, 39))); this->frame.addVertex(location + param); this->frame.addVertex(location - param); if (i > 0) { this->face.addIndex(i * 2); this->face.addIndex(i * 2 - 1); this->face.addIndex(i * 2 - 2); this->face.addIndex(i * 2); this->face.addIndex(i * 2 + 1); this->face.addIndex(i * 2 - 1); this->frame.addIndex(i * 2); this->frame.addIndex(i * 2 - 2); this->frame.addIndex(i * 2 + 1); this->frame.addIndex(i * 2 - 1); } } this->frame.addIndex(0); this->frame.addIndex(1); this->frame.addIndex(frame.getNumVertices() - 1); this->frame.addIndex(frame.getNumVertices() - 2); } //-------------------------------------------------------------- void ofApp::draw() { auto target = this->face.getVertex(this->face.getNumVertices() - 1); auto camera_location = this->face.getVertex(0) + glm::vec3(0, 0, 660); this->cam.setPosition(camera_location); this->cam.setTarget(target); this->cam.lookAt(target); this->cam.begin(); this->face.drawFaces(); ofSetColor(239); this->frame.drawWireframe(); this->cam.end(); } //-------------------------------------------------------------- int main() { ofSetupOpenGL(720, 720, OF_WINDOW); ofRunApp(new ofApp()); } |