IcoSphere – プログラミング de 落描き

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[ About ]
ofIcoSpherePrimitiveクラスから取得した座標情報を元に球体を分離

Split sphere.

[ Source ]

#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;
};

#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;

};

#include "ofApp.h"

//--------------------------------------------------------------
void ofApp::setup() {

	ofSetFrameRate(60);
	ofSetWindowTitle("openFrameworks");

	ofBackground(239);
	ofNoFill();
	ofSetLineWidth(2);
	ofEnableDepthTest();
}

//--------------------------------------------------------------
void ofApp::update() {

}

//--------------------------------------------------------------
void ofApp::draw() {

	this->cam.begin();
	ofRotateY(ofGetFrameNum());

	float radius = 180;
	auto ico_sphere = ofIcoSpherePrimitive(radius, 2);
	auto triangles = ico_sphere.getMesh().getUniqueFaces();

	for (int index = 0; index < triangles.size(); index++) {

		auto avg = glm::vec3();
		vector<glm::vec3> vertices;
		for (int j = 0; j < 3; j++) {

			glm::vec3 location(triangles[index].getVertex(j).x, triangles[index].getVertex(j).y, triangles[index].getVertex(j).z);
			vertices.push_back(location);

			avg += location;
		}
		avg /= 3;

		int noise_value = ofMap(ofNoise(avg.x * 0.002, avg.y * 0.002, avg.z * 0.002, ofGetFrameNum() * 0.01), 0, 1, 0, 9);
		float x = 400 * (noise_value % 3) + 200 - 600;
		float y = 400 * (noise_value / 3) + 200 - 600;

		ofPushMatrix();
		ofTranslate(x, y);

		ofFill();
		ofSetColor(39);

		ofBeginShape();
		ofVertices(vertices);
		ofEndShape(true);

		ofNoFill();
		ofSetColor(255);

		ofBeginShape();
		ofVertices(vertices);
		ofEndShape(true);

		ofPopMatrix();
	}
	
	this->cam.end();
}

//--------------------------------------------------------------
int main() {

	ofSetupOpenGL(720, 720, OF_WINDOW);
	ofRunApp(new ofApp());
}

#include "ofApp.h"

//--------------------------------------------------------------

void ofApp::setup() {

ofSetFrameRate(60);

ofSetWindowTitle("openFrameworks");

ofBackground(239);

ofNoFill();

ofSetLineWidth(2);

ofEnableDepthTest();

}

//--------------------------------------------------------------

void ofApp::update() {

}

//--------------------------------------------------------------

void ofApp::draw() {

this->cam.begin();

ofRotateY(ofGetFrameNum());

float radius = 180;

auto ico_sphere = ofIcoSpherePrimitive(radius, 2);

auto triangles = ico_sphere.getMesh().getUniqueFaces();

for (int index = 0; index < triangles.size(); index++) {

auto avg = glm::vec3();

vector<glm::vec3> vertices;

for (int j = 0; j < 3; j++) {

glm::vec3 location(triangles[index].getVertex(j).x, triangles[index].getVertex(j).y, triangles[index].getVertex(j).z);

vertices.push_back(location);

avg += location;

}

avg /= 3;

int noise_value = ofMap(ofNoise(avg.x * 0.002, avg.y * 0.002, avg.z * 0.002, ofGetFrameNum() * 0.01), 0, 1, 0, 9);

float x = 400 * (noise_value % 3) + 200 - 600;

float y = 400 * (noise_value / 3) + 200 - 600;

ofPushMatrix();

ofTranslate(x, y);

ofFill();

ofSetColor(39);

ofBeginShape();

ofVertices(vertices);

ofEndShape(true);

ofNoFill();

ofSetColor(255);

ofBeginShape();

ofVertices(vertices);

ofEndShape(true);

ofPopMatrix();

}

this->cam.end();

}

//--------------------------------------------------------------

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20190220

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[ Video ]

[ About ]
IcoSphereクラスから取得できる座標を変形させて遊んでいます。球体を構成する三角形(面)情報が取得できるので、中心座標を計算・図形で結んで、出っ張りを描写しています。

球体の半径を変化させているので、球体とトゲトゲの形に変形するのが楽しいですね。

[ Source ]

#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;
};

#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;

};

#include "ofApp.h"

//--------------------------------------------------------------
void ofApp::setup() {

	ofSetFrameRate(60);
	ofBackground(239);
	ofSetWindowTitle("Insta");

	ofEnableDepthTest();
}

//--------------------------------------------------------------
void ofApp::update() {

}

//--------------------------------------------------------------
void ofApp::draw() {

	this->cam.begin();
	ofRotateX(ofGetFrameNum() * 0.1);
	ofRotateY(ofGetFrameNum() * 0.25);

	float radius = 400 * ofNoise(ofGetFrameNum() * 0.01);
	ofIcoSpherePrimitive ico_sphere = ofIcoSpherePrimitive(radius , 2);
	vector<ofMeshFace> triangles = ico_sphere.getMesh().getUniqueFaces();
	for (int i = 0; i < triangles.size(); i++) {

		ofPoint average = (triangles[i].getVertex(0) + triangles[i].getVertex(1) + triangles[i].getVertex(2)) / 3;
		average = average.normalized() * 240;

		ofFill();
		ofSetColor(239);
		ofBeginShape();
		ofVertex(triangles[i].getVertex(0).x, triangles[i].getVertex(0).y, triangles[i].getVertex(0).z);
		ofVertex(triangles[i].getVertex(1).x, triangles[i].getVertex(1).y, triangles[i].getVertex(1).z);
		ofVertex(triangles[i].getVertex(2).x, triangles[i].getVertex(2).y, triangles[i].getVertex(2).z);
		ofEndShape(true);

		for (int v = 0; v < 3; v++) {

			ofFill();
			ofSetColor(239);
			ofBeginShape();
			ofVertex(average);
			ofVertex(triangles[i].getVertex(v).x, triangles[i].getVertex(v).y, triangles[i].getVertex(v).z);
			ofVertex(triangles[i].getVertex((v + 1) % 3).x, triangles[i].getVertex((v + 1) % 3).y, triangles[i].getVertex((v + 1) % 3).z);
			ofEndShape(true);

			ofNoFill();
			ofSetColor(39, 198);
			ofBeginShape();
			ofVertex(average);
			ofVertex(triangles[i].getVertex(v).x, triangles[i].getVertex(v).y, triangles[i].getVertex(v).z);
			ofVertex(triangles[i].getVertex((v + 1) % 3).x, triangles[i].getVertex((v + 1) % 3).y, triangles[i].getVertex((v + 1) % 3).z);
			ofEndShape(true);
		}
	}

	this->cam.end();
}

//--------------------------------------------------------------
int main() {

	ofSetupOpenGL(720, 720, OF_WINDOW);
	ofRunApp(new ofApp());
}

#include "ofApp.h"

//--------------------------------------------------------------

void ofApp::setup() {

ofSetFrameRate(60);

ofBackground(239);

ofSetWindowTitle("Insta");

ofEnableDepthTest();

}

//--------------------------------------------------------------

void ofApp::update() {

}

//--------------------------------------------------------------

void ofApp::draw() {

this->cam.begin();

ofRotateX(ofGetFrameNum() * 0.1);

ofRotateY(ofGetFrameNum() * 0.25);

float radius = 400 * ofNoise(ofGetFrameNum() * 0.01);

ofIcoSpherePrimitive ico_sphere = ofIcoSpherePrimitive(radius , 2);

vector<ofMeshFace> triangles = ico_sphere.getMesh().getUniqueFaces();

for (int i = 0; i < triangles.size(); i++) {

ofPoint average = (triangles[i].getVertex(0) + triangles[i].getVertex(1) + triangles[i].getVertex(2)) / 3;

average = average.normalized() * 240;

ofFill();

ofSetColor(239);

ofBeginShape();

ofVertex(triangles[i].getVertex(0).x, triangles[i].getVertex(0).y, triangles[i].getVertex(0).z);

ofVertex(triangles[i].getVertex(1).x, triangles[i].getVertex(1).y, triangles[i].getVertex(1).z);

ofVertex(triangles[i].getVertex(2).x, triangles[i].getVertex(2).y, triangles[i].getVertex(2).z);

ofEndShape(true);

for (int v = 0; v < 3; v++) {

ofFill();

ofSetColor(239);

ofBeginShape();

ofVertex(average);

ofVertex(triangles[i].getVertex(v).x, triangles[i].getVertex(v).y, triangles[i].getVertex(v).z);

ofVertex(triangles[i].getVertex((v + 1) % 3).x, triangles[i].getVertex((v + 1) % 3).y, triangles[i].getVertex((v + 1) % 3).z);

ofEndShape(true);

ofNoFill();

ofSetColor(39, 198);

ofBeginShape();

ofVertex(average);

ofVertex(triangles[i].getVertex(v).x, triangles[i].getVertex(v).y, triangles[i].getVertex(v).z);

ofVertex(triangles[i].getVertex((v + 1) % 3).x, triangles[i].getVertex((v + 1) % 3).y, triangles[i].getVertex((v + 1) % 3).z);

ofEndShape(true);

}

this->cam.end();

}

//--------------------------------------------------------------

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20180417

[ほしいものリスト]
Amazon

[ Sponsor Link ]

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タグ: IcoSphere

Split sphere. openFrameworks

IcoSphereを変形 openFrameworks