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ポイントライトの勉強。
3 color light.
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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; ofLight r_light, g_light, b_light; ofMesh mesh, draw_mesh; }; |
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#include "ofApp.h" //-------------------------------------------------------------- void ofApp::setup() { ofSetFrameRate(60); ofSetWindowTitle("openframeworks"); ofBackground(239); ofSetLineWidth(0.25); ofEnableDepthTest(); ofIcoSpherePrimitive ico_sphere = ofIcoSpherePrimitive(230, 4); this->mesh = ico_sphere.getMesh(); ofSetSmoothLighting(true); r_light.setSpecularColor(ofColor(255, 0, 0)); r_light.setDiffuseColor(ofColor(172, 0, 0)); r_light.setAmbientColor(ofColor(39)); r_light.enable(); g_light.setSpecularColor(ofColor(0, 255, 0)); g_light.setDiffuseColor(ofColor(0, 172, 0)); g_light.setAmbientColor(ofColor(39)); g_light.enable(); b_light.setSpecularColor(ofColor(0, 0, 255)); b_light.setDiffuseColor(ofColor(0, 0, 172)); b_light.setAmbientColor(ofColor(39)); b_light.enable(); } //-------------------------------------------------------------- void ofApp::update() { ofSeedRandom(39); auto r_location = glm::vec3(ofMap(ofNoise(ofRandom(1000), ofGetFrameNum() * 0.005), 0, 1, -300, 300), ofMap(ofNoise(ofRandom(1000), ofGetFrameNum() * 0.005), 0, 1, -300, 300), ofMap(ofNoise(ofRandom(1000), ofGetFrameNum() * 0.005), 0, 1, 0, 300)); r_light.setPosition(glm::normalize(r_location) * 300); auto g_location = glm::vec3(ofMap(ofNoise(ofRandom(1000), ofGetFrameNum() * 0.005), 0, 1, -300, 300), ofMap(ofNoise(ofRandom(1000), ofGetFrameNum() * 0.005), 0, 1, -300, 300), ofMap(ofNoise(ofRandom(1000), ofGetFrameNum() * 0.005), 0, 1, 0, 300)); g_light.setPosition(glm::normalize(g_location) * 300); auto b_location = glm::vec3(ofMap(ofNoise(ofRandom(1000), ofGetFrameNum() * 0.005), 0, 1, -300, 300), ofMap(ofNoise(ofRandom(1000), ofGetFrameNum() * 0.005), 0, 1, -300, 300), ofMap(ofNoise(ofRandom(1000), ofGetFrameNum() * 0.005), 0, 1, 0, 300)); b_light.setPosition(glm::normalize(b_location) * 300); this->draw_mesh = this->mesh; for (int i = 0; i < this->mesh.getNumVertices(); i++) { auto vertex = this->mesh.getVertex(i); auto noise_value = ofNoise(glm::vec4(vertex * 0.03, ofGetFrameNum() * 0.005)); auto noise_vertex = glm::normalize(vertex) * (230 * noise_value); this->draw_mesh.setVertex(i, noise_vertex); } } //-------------------------------------------------------------- void ofApp::draw() { this->cam.begin(); ofSetColor(255, 0, 0); ofDrawSphere(this->r_light.getPosition(), 10); ofSetColor(0, 255, 0); ofDrawSphere(this->g_light.getPosition(), 10); ofSetColor(0, 0, 255); ofDrawSphere(this->b_light.getPosition(), 10); ofSetColor(255); this->draw_mesh.draw(); this->cam.end(); } //-------------------------------------------------------------- int main() { ofSetupOpenGL(720, 720, OF_WINDOW); ofRunApp(new ofApp()); } |