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二つの距離で最大の高さを調整する。
Adjust the maximum height in two distances.
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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, line; }; |
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#include "ofApp.h" //-------------------------------------------------------------- void ofApp::setup() { ofSetFrameRate(30); ofSetWindowTitle("openframeworks"); ofBackground(0); ofSetLineWidth(2); ofEnableDepthTest(); this->line.setMode(ofPrimitiveMode::OF_PRIMITIVE_LINES); } //-------------------------------------------------------------- void ofApp::update() { ofSeedRandom(39); this->face.clear(); this->line.clear(); auto x_span = 1; auto z_span = 20; for (auto z = -100; z <= 100; z += z_span) { auto hue = ofRandom(255); ofColor color; color.setHsb(hue, 180, 255); auto noise_seed = ofRandom(1000); auto param_noise_seed = ofRandom(1000); auto start_index = this->face.getNumVertices(); auto param_noise_value = ofNoise(z * 0.035, ofGetFrameNum() * 0.0001); for (auto x = -500; x <= 500; x += x_span) { vector<glm::vec3> vertices; auto noise_value = ofNoise(z * 0.05, x * 0.035, ofGetFrameNum() * 0.005); auto next_noise_value = ofNoise(z * 0.05, (x + x_span) * 0.035, ofGetFrameNum() * 0.005); if (abs(x) <= 150) { auto param = ofMap(param_noise_value, 0, 1, -150, 150); auto distance = abs(x - param); noise_value = noise_value * (distance > 30 ? 0.1 : ofMap(distance, 0, 30, 0.5, 0.1)) * (abs(x) < 100 ? 1 : ofMap(abs(x), 100, 150, 1, 0)); } else { noise_value = 0; } if (abs(x + x_span) <= 150) { auto param = ofMap(param_noise_value, 0, 1, -150, 150); auto distance = abs((x + x_span) - param); next_noise_value = next_noise_value * (distance > 30 ? 0.1 : ofMap(distance, 0, 30, 0.5, 0.1)) * (abs(x + x_span) < 100 ? 1 : ofMap(abs(x + x_span), 100, 150, 1, 0)); } else { next_noise_value = 0; } auto height = ofMap(noise_value, 0, 1, -150, 350); auto next_height = ofMap(next_noise_value, 0, 1, -150, 350); vertices.push_back(glm::vec3(x, -150, z - 4.5)); vertices.push_back(glm::vec3(x + x_span, -150, z - 4.5)); vertices.push_back(glm::vec3(x + x_span, next_height, z - 4.5)); vertices.push_back(glm::vec3(x, height, z - 4.5)); vertices.push_back(glm::vec3(x, -150, z + 4.5)); vertices.push_back(glm::vec3(x + x_span, -150, z + 4.5)); vertices.push_back(glm::vec3(x + x_span, next_height, z + 4.5)); vertices.push_back(glm::vec3(x, height, z + 4.5)); auto index = this->face.getNumVertices(); this->face.addVertices(vertices); this->face.addIndex(index + 0); this->face.addIndex(index + 1); this->face.addIndex(index + 2); this->face.addIndex(index + 0); this->face.addIndex(index + 2); this->face.addIndex(index + 3); this->face.addIndex(index + 4); this->face.addIndex(index + 5); this->face.addIndex(index + 6); this->face.addIndex(index + 4); this->face.addIndex(index + 6); this->face.addIndex(index + 7); this->face.addIndex(index + 0); this->face.addIndex(index + 4); this->face.addIndex(index + 5); this->face.addIndex(index + 0); this->face.addIndex(index + 5); this->face.addIndex(index + 1); this->face.addIndex(index + 2); this->face.addIndex(index + 6); this->face.addIndex(index + 7); this->face.addIndex(index + 2); this->face.addIndex(index + 7); this->face.addIndex(index + 3); this->line.addVertices(vertices); this->line.addIndex(index + 0); this->line.addIndex(index + 1); this->line.addIndex(index + 2); this->line.addIndex(index + 3); this->line.addIndex(index + 4); this->line.addIndex(index + 5); this->line.addIndex(index + 6); this->line.addIndex(index + 7); for (int i = index; i < index + 8; i++) { this->face.addColor(ofColor(0)); this->line.addColor(ofColor(255)); } } this->face.addIndex(start_index + 0); this->face.addIndex(start_index + 4); this->face.addIndex(start_index + 7); this->face.addIndex(start_index + 0); this->face.addIndex(start_index + 7); this->face.addIndex(start_index + 3); this->line.addIndex(start_index + 0); this->line.addIndex(start_index + 3); this->line.addIndex(start_index + 0); this->line.addIndex(start_index + 4); this->line.addIndex(start_index + 7); this->line.addIndex(start_index + 3); this->line.addIndex(start_index + 7); this->line.addIndex(start_index + 4); auto index = this->face.getNumVertices() - 8; this->face.addIndex(index + 1); this->face.addIndex(index + 2); this->face.addIndex(index + 6); this->face.addIndex(index + 1); this->face.addIndex(index + 6); this->face.addIndex(index + 5); this->line.addIndex(index + 1); this->line.addIndex(index + 2); this->line.addIndex(index + 1); this->line.addIndex(index + 5); this->line.addIndex(index + 6); this->line.addIndex(index + 2); this->line.addIndex(index + 6); this->line.addIndex(index + 5); } } //-------------------------------------------------------------- void ofApp::draw() { this->cam.begin(); ofRotateY(180 + ofGetFrameNum() * 0.75); this->face.draw(); this->line.drawWireframe(); this->cam.end(); } //-------------------------------------------------------------- int main() { ofSetupOpenGL(720, 720, OF_WINDOW); ofRunApp(new ofApp()); } |
[ Link ]
https://github.com/junkiyoshi/Insta20211125