[ Movie ]
[ About ]
カメラの場所・ターゲットを切り替える。
Switching cameara target and position.
[ 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; ofTrueTypeFont font; vector<glm::vec3> location_list; glm::vec3 camera_location, target_location; int target_index, prev_index, camera_index; }; |
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#include "ofApp.h" //-------------------------------------------------------------- void ofApp::setup() { ofSetFrameRate(30); ofSetWindowTitle("openframeworks"); ofBackground(239); ofEnableDepthTest(); this->font.loadFont("fonts/Kazesawa-Bold.ttf", 30, true, true, true); for (int i = 0; i < 300; i++) { auto location = glm::vec3(ofRandom(-1, 1), ofRandom(-1, 1), ofRandom(-1, 1)); location = glm::normalize(location) * ofRandom(150, 200); this->location_list.push_back(location); } this->target_index = ofRandom(this->location_list.size()); this->prev_index = ofRandom(this->location_list.size()); this->camera_index = ofRandom(this->location_list.size()); } //-------------------------------------------------------------- void ofApp::update() { ofSeedRandom(39); int param = ofGetFrameNum() % 120; if (param == 0) { this->camera_index = this->prev_index; this->prev_index = this->target_index; this->target_index = (int)(ofRandom(1000) + ofGetFrameNum()) % this->location_list.size(); } if (param <= 60) { auto tmp = this->location_list[this->prev_index] - this->location_list[this->camera_index]; this->camera_location = this->location_list[this->camera_index] + tmp * (param / 60.f); tmp = this->location_list[this->target_index] - this->location_list[this->prev_index]; this->target_location = this->location_list[prev_index] + tmp * (param / 60.f); } } //-------------------------------------------------------------- void ofApp::draw() { this->cam.setPosition(this->camera_location); this->cam.lookAt(this->target_location); this->cam.begin(); for (int i = 0; i < this->location_list.size(); i++) { ofPushMatrix(); ofTranslate(this->location_list[i]); ofRotateX(ofMap(ofNoise(ofRandom(10000), ofGetFrameNum() * 0.005), 0, 1, -180, 180)); ofRotateY(ofMap(ofNoise(ofRandom(10000), ofGetFrameNum() * 0.005), 0, 1, -180, 180)); ofRotateZ(ofMap(ofNoise(ofRandom(10000), ofGetFrameNum() * 0.005), 0, 1, -180, 180)); char noise_value = ofMap(ofNoise(this->location_list[i].x * 0.008, this->location_list[i].y * 0.008, this->location_list[i].z * 0.008, ofGetFrameNum() * 0.01), 0, 1, '0', 'Z'); auto path = font.getCharacterAsPoints(noise_value, true, false); auto outline = path.getOutline(); ofFill(); i == this->target_index ? ofSetColor(239, 0, 0) : ofSetColor(239); ofBeginShape(); for (int outline_index = 0; outline_index < outline.size(); outline_index++) { if (outline_index != 0) { ofNextContour(true); } auto vertices = outline[outline_index].getVertices(); for (int vertices_index = 0; vertices_index < vertices.size(); vertices_index++) { auto location = glm::vec2(vertices[vertices_index].x - this->font.stringWidth(string{ noise_value }) * 0.5, vertices[vertices_index].y + this->font.stringHeight(string{ noise_value }) * 0.5); ofVertex(location); } } ofEndShape(true); ofNoFill(); ofSetColor(39); ofBeginShape(); for (int outline_index = 0; outline_index < outline.size(); outline_index++) { if (outline_index != 0) { ofNextContour(true); } auto vertices = outline[outline_index].getVertices(); for (int vertices_index = 0; vertices_index < vertices.size(); vertices_index++) { auto location = glm::vec2(vertices[vertices_index].x - this->font.stringWidth(string{ noise_value }) * 0.5, vertices[vertices_index].y + this->font.stringHeight(string{ noise_value }) * 0.5); ofVertex(location); } } ofEndShape(true); ofPopMatrix(); } this->cam.end(); } //-------------------------------------------------------------- int main() { ofSetupOpenGL(1280, 720, OF_WINDOW); ofRunApp(new ofApp()); } |