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複数の面をノイズ関数で動かす。
Moving Multiple Surfaces with Noise Functions.
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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) {}; glm::vec2 make_point(int len, int param); void draw_panel(vector<glm::vec3> vertices); ofEasyCam cam; }; |
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#include "ofApp.h" //-------------------------------------------------------------- void ofApp::setup() { ofSetFrameRate(60); ofSetWindowTitle("openFrameworks"); ofBackground(239); ofSetLineWidth(2); ofEnableDepthTest(); } //-------------------------------------------------------------- void ofApp::update() { } //-------------------------------------------------------------- void ofApp::draw() { int len = 300; int size = 60; this->cam.begin(); ofRotateX(ofGetFrameNum() * 0.37); ofRotateY(ofGetFrameNum() * 0.72); for (int s_1 = len * -0.5; s_1 <= len * 0.5; s_1 += size) { for (int s_2 = len * -0.5; s_2 <= len * 0.5; s_2 += size) { vector<glm::vec3> vertices; auto p = (len + size) * 0.5; vertices.clear(); vertices.push_back(glm::vec3(p, s_1 - size * 0.5, s_2 - size * 0.5)); vertices.push_back(glm::vec3(p, s_1 + size * 0.5, s_2 - size * 0.5)); vertices.push_back(glm::vec3(p, s_1 + size * 0.5, s_2 + size * 0.5)); vertices.push_back(glm::vec3(p, s_1 - size * 0.5, s_2 + size * 0.5)); auto noise_value = ofNoise(p * 0.003, s_1 * 0.003, s_2 * 0.003, ofGetFrameNum() * 0.01); auto add = 0; if (noise_value > 0.65) { add = ofMap(noise_value, 0.65, 1, 0, size * 2); } for (auto& vertex : vertices) { vertex.x += add; } this->draw_panel(vertices); vertices.clear(); vertices.push_back(glm::vec3(-p, s_1 - size * 0.5, s_2 - size * 0.5)); vertices.push_back(glm::vec3(-p, s_1 + size * 0.5, s_2 - size * 0.5)); vertices.push_back(glm::vec3(-p, s_1 + size * 0.5, s_2 + size * 0.5)); vertices.push_back(glm::vec3(-p, s_1 - size * 0.5, s_2 + size * 0.5)); noise_value = ofNoise(p * 0.003, s_1 * 0.003, s_2 * 0.003, ofGetFrameNum() * 0.01); add = 0; if (noise_value > 0.65) { add = ofMap(noise_value, 0.65, 1, 0, size * 2); } for (auto& vertex : vertices) { vertex.x -= add; } this->draw_panel(vertices); vertices.clear(); vertices.push_back(glm::vec3(s_1 - size * 0.5, p, s_2 - size * 0.5)); vertices.push_back(glm::vec3(s_1 + size * 0.5, p, s_2 - size * 0.5)); vertices.push_back(glm::vec3(s_1 + size * 0.5, p, s_2 + size * 0.5)); vertices.push_back(glm::vec3(s_1 - size * 0.5, p, s_2 + size * 0.5)); noise_value = ofNoise(s_1 * 0.003, p * 0.003, s_2 * 0.003, ofGetFrameNum() * 0.01); add = 0; if (noise_value > 0.65) { add = ofMap(noise_value, 0.65, 1, 0, size * 2); } for (auto& vertex : vertices) { vertex.y += add; } this->draw_panel(vertices); vertices.clear(); vertices.push_back(glm::vec3(s_1 - size * 0.5, -p, s_2 - size * 0.5)); vertices.push_back(glm::vec3(s_1 + size * 0.5, -p, s_2 - size * 0.5)); vertices.push_back(glm::vec3(s_1 + size * 0.5, -p, s_2 + size * 0.5)); vertices.push_back(glm::vec3(s_1 - size * 0.5, -p, s_2 + size * 0.5)); noise_value = ofNoise(s_1 * 0.003, p * 0.003, s_2 * 0.003, ofGetFrameNum() * 0.01); add = 0; if (noise_value > 0.65) { add = ofMap(noise_value, 0.65, 1, 0, size * 2); } for (auto& vertex : vertices) { vertex.y -= add; } this->draw_panel(vertices); vertices.clear(); vertices.push_back(glm::vec3(s_1 - size * 0.5, s_2 - size * 0.5, p)); vertices.push_back(glm::vec3(s_1 + size * 0.5, s_2 - size * 0.5, p)); vertices.push_back(glm::vec3(s_1 + size * 0.5, s_2 + size * 0.5, p)); vertices.push_back(glm::vec3(s_1 - size * 0.5, s_2 + size * 0.5, p)); noise_value = ofNoise(s_1 * 0.003, s_2* 0.003, p * 0.003, ofGetFrameNum() * 0.01); add = 0; if (noise_value > 0.65) { add = ofMap(noise_value, 0.65, 1, 0, size * 2); } for (auto& vertex : vertices) { vertex.z += add; } this->draw_panel(vertices); vertices.clear(); vertices.push_back(glm::vec3(s_1 - size * 0.5, s_2 - size * 0.5, -p)); vertices.push_back(glm::vec3(s_1 + size * 0.5, s_2 - size * 0.5, -p)); vertices.push_back(glm::vec3(s_1 + size * 0.5, s_2 + size * 0.5, -p)); vertices.push_back(glm::vec3(s_1 - size * 0.5, s_2 + size * 0.5, -p)); noise_value = ofNoise(s_1 * 0.003, s_2 * 0.003, p * 0.003, ofGetFrameNum() * 0.01); add = 0; if (noise_value > 0.65) { add = ofMap(noise_value, 0.65, 1, 0, size * 2); } for (auto& vertex : vertices) { vertex.z -= add; } this->draw_panel(vertices); } } this->cam.end(); } //-------------------------------------------------------------- void ofApp::draw_panel(vector<glm::vec3> vertices) { ofMesh face, line; face.addVertices(vertices); face.addIndex(0); face.addIndex(1); face.addIndex(2); face.addIndex(0); face.addIndex(2); face.addIndex(3); ofSetColor(239); face.draw(); line.setMode(ofPrimitiveMode::OF_PRIMITIVE_LINES); line.addVertices(vertices); line.addIndex(0); line.addIndex(1); line.addIndex(1); line.addIndex(2); line.addIndex(2); line.addIndex(3); line.addIndex(3); line.addIndex(0); ofSetColor(39); line.drawWireframe(); } //-------------------------------------------------------------- glm::vec2 ofApp::make_point(int len, int param) { param = param % 100; if (param < 25) { return glm::vec2(ofMap(param, 0, 25, -len * 0.5, len * 0.5), -len * 0.5); } else if (param < 50) { return glm::vec2(len * 0.5, ofMap(param, 25, 50, -len * 0.5, len * 0.5)); } else if (param < 75) { return glm::vec2(ofMap(param, 50, 75, len * 0.5, -len * 0.5), len * 0.5); } else { return glm::vec2(-len * 0.5, ofMap(param, 75, 100, len * 0.5, -len * 0.5)); } } //-------------------------------------------------------------- int main() { ofSetupOpenGL(720, 720, OF_WINDOW); ofRunApp(new ofApp()); } |