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ノイズで座標移動した球体と、その距離で壁の高さを変化。
Shape made by Noise.
[ 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_mesh, frame_mesh; vector<glm::vec2> planet_list; float noise_seed; }; |
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#include "ofApp.h" //-------------------------------------------------------------- void ofApp::setup() { ofSetFrameRate(60); ofSetWindowTitle("openframeworks"); ofBackground(239); ofEnableDepthTest(); this->frame_mesh.setMode(ofPrimitiveMode::OF_PRIMITIVE_LINES); } //-------------------------------------------------------------- void ofApp::update() { ofSeedRandom(39); this->face_mesh.clear(); this->frame_mesh.clear(); this->planet_list.clear(); int radius_span = 5; int deg_span = 10; int radius = 100; int range = 500; if (ofGetFrameNum() % 60 < 45) { this->noise_seed += ofMap(ofGetFrameNum() % 60, 0, 45, 0.015, 0); } for (int i = 0; i < 5; i++) { this->planet_list.push_back(glm::vec2( ofMap(ofNoise(ofRandom(1000), this->noise_seed), 0, 1, -range, range), ofMap(ofNoise(ofRandom(1000), this->noise_seed), 0, 1, -range, range) )); } for (int deg_start = 0; deg_start < 360; deg_start += deg_span) { auto location = glm::vec2(radius * cos((deg_start + deg_span * 0.5) * DEG_TO_RAD), radius * sin((deg_start + deg_span * 0.5) * DEG_TO_RAD)); auto z = 0; for (auto& planet : this->planet_list) { auto distance = glm::distance(location, planet) * 0.75; if (distance < 150) { z -= distance; } else if (distance < 300) { z += distance - 150; } } int param_index = this->face_mesh.getNumVertices(); for (int deg = deg_start; deg < deg_start + deg_span; deg++) { int index = this->face_mesh.getNumVertices(); vector<glm::vec3> vertices; vertices.push_back(glm::vec3(radius * cos(deg * DEG_TO_RAD), radius * sin(deg * DEG_TO_RAD), z)); vertices.push_back(glm::vec3((radius + radius_span) * cos(deg * DEG_TO_RAD), (radius + radius_span) * sin(deg * DEG_TO_RAD), z)); vertices.push_back(glm::vec3((radius + radius_span) * cos((deg + 1) * DEG_TO_RAD), (radius + radius_span) * sin((deg + 1) * DEG_TO_RAD), z)); vertices.push_back(glm::vec3(radius * cos((deg + 1) * DEG_TO_RAD), radius * sin((deg + 1) * DEG_TO_RAD), z)); vertices.push_back(glm::vec3(radius * cos(deg * DEG_TO_RAD), radius * sin(deg * DEG_TO_RAD), 0)); vertices.push_back(glm::vec3((radius + radius_span) * cos(deg * DEG_TO_RAD), (radius + radius_span) * sin(deg * DEG_TO_RAD), 0)); vertices.push_back(glm::vec3((radius + radius_span) * cos((deg + 1) * DEG_TO_RAD), (radius + radius_span) * sin((deg + 1) * DEG_TO_RAD), 0)); vertices.push_back(glm::vec3(radius * cos((deg + 1) * DEG_TO_RAD), radius * sin((deg + 1) * DEG_TO_RAD), 0)); this->face_mesh.addVertices(vertices); this->face_mesh.addIndex(index + 0); this->face_mesh.addIndex(index + 1); this->face_mesh.addIndex(index + 2); this->face_mesh.addIndex(index + 0); this->face_mesh.addIndex(index + 2); this->face_mesh.addIndex(index + 3); this->face_mesh.addIndex(index + 4); this->face_mesh.addIndex(index + 5); this->face_mesh.addIndex(index + 6); this->face_mesh.addIndex(index + 4); this->face_mesh.addIndex(index + 6); this->face_mesh.addIndex(index + 7); this->face_mesh.addIndex(index + 0); this->face_mesh.addIndex(index + 3); this->face_mesh.addIndex(index + 7); this->face_mesh.addIndex(index + 0); this->face_mesh.addIndex(index + 4); this->face_mesh.addIndex(index + 7); this->face_mesh.addIndex(index + 1); this->face_mesh.addIndex(index + 2); this->face_mesh.addIndex(index + 6); this->face_mesh.addIndex(index + 1); this->face_mesh.addIndex(index + 5); this->face_mesh.addIndex(index + 6); this->frame_mesh.addVertices(vertices); this->frame_mesh.addIndex(index + 0); this->frame_mesh.addIndex(index + 3); this->frame_mesh.addIndex(index + 4); this->frame_mesh.addIndex(index + 7); this->frame_mesh.addIndex(index + 1); this->frame_mesh.addIndex(index + 2); this->frame_mesh.addIndex(index + 5); this->frame_mesh.addIndex(index + 6); } this->face_mesh.addIndex(param_index + 0); this->face_mesh.addIndex(param_index + 1); this->face_mesh.addIndex(param_index + 5); this->face_mesh.addIndex(param_index + 0); this->face_mesh.addIndex(param_index + 4); this->face_mesh.addIndex(param_index + 5); this->frame_mesh.addIndex(param_index + 0); this->frame_mesh.addIndex(param_index + 1); this->frame_mesh.addIndex(param_index + 4); this->frame_mesh.addIndex(param_index + 5); this->frame_mesh.addIndex(param_index + 0); this->frame_mesh.addIndex(param_index + 4); this->frame_mesh.addIndex(param_index + 1); this->frame_mesh.addIndex(param_index + 5); param_index = this->face_mesh.getNumVertices() - 8; this->face_mesh.addIndex(param_index + 2); this->face_mesh.addIndex(param_index + 3); this->face_mesh.addIndex(param_index + 6); this->face_mesh.addIndex(param_index + 3); this->face_mesh.addIndex(param_index + 6); this->face_mesh.addIndex(param_index + 7); this->frame_mesh.addIndex(param_index + 2); this->frame_mesh.addIndex(param_index + 3); this->frame_mesh.addIndex(param_index + 6); this->frame_mesh.addIndex(param_index + 7); this->frame_mesh.addIndex(param_index + 2); this->frame_mesh.addIndex(param_index + 6); this->frame_mesh.addIndex(param_index + 3); this->frame_mesh.addIndex(param_index + 7); } } //-------------------------------------------------------------- void ofApp::draw() { this->cam.begin(); ofSetColor(39); this->face_mesh.drawFaces(); for (auto& planet : this->planet_list) { ofDrawSphere(glm::vec3(planet, 0), 10); } for (int i = 0; i < this->planet_list.size() - 1; i++) { ofDrawLine(this->planet_list[i], this->planet_list[i + 1]); } ofDrawLine(this->planet_list[this->planet_list.size() - 1], this->planet_list[0]); ofSetColor(239); this->frame_mesh.drawWireframe(); this->cam.end(); } //-------------------------------------------------------------- int main() { ofSetupOpenGL(720, 720, OF_WINDOW); ofRunApp(new ofApp()); } |