プログラミング de 落描き – ページ 723 – クリエイティブ・コーディングによる生成物とソース

2019年3月23日2019年3月22日

Twisting torus. openFrameworks

[ Video ]

[ About ]
「数学デッサン教室描いて楽しむ数学のかたち」から引用した式で算出したトーラス座標をglm::rotateで回転

Twisting torus.

[ 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 mouseEntered(int x, int y) {};
	void mouseExited(int x, int y) {};
	void windowResized(int w, int h) {};
	void dragEvent(ofDragInfo dragInfo) {};
	void gotMessage(ofMessage msg) {};

	glm::vec3 make_point(float R, float r, float u, float v);

	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 mouseEntered(int x, int y) {};

void mouseExited(int x, int y) {};

void windowResized(int w, int h) {};

void dragEvent(ofDragInfo dragInfo) {};

void gotMessage(ofMessage msg) {};

glm::vec3 make_point(float R, float r, float u, float v);

ofEasyCam cam;

};

#include "ofApp.h"

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

	ofSetFrameRate(60);
	ofSetWindowTitle("openframeworks");

	ofBackground(239);
	ofSetLineWidth(3);
	ofEnableDepthTest();
}

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

}

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

	this->cam.begin();

	ofColor color;
	for (int v = 0; v < 360; v += 10) {

		for (int u = 0; u < 360; u += 20) {

			color.setHsb(ofMap(v, 0, 360, 0, 255), 255, 230);
			ofSetColor(color);

			ofBeginShape();

			ofVertex(this->make_point(300, 70, u, v));
			ofVertex(this->make_point(300, 70, u + 20, v));
			ofVertex(this->make_point(300, 70, u + 20, v + 10));
			ofVertex(this->make_point(300, 70, u, v + 10));

			ofEndShape();
		}
	}

	this->cam.end();
}

//--------------------------------------------------------------
glm::vec3 ofApp::make_point(float R, float r, float u, float v) {

	// 数学デッサン教室 描いて楽しむ数学たち　P.31

	u *= DEG_TO_RAD;
	v *= DEG_TO_RAD;

	float x = (R + r * cos(u)) * cos(v);
	float y = (R + r * cos(u)) * sin(v);
	float z = r * sin(u);

	auto location = glm::vec3(x, y, z);
	auto rotation_y = glm::rotate(glm::mat4(), ofMap(ofNoise(location.y * 0.001 + ofGetFrameNum() * 0.005), 0, 1, -PI * 2, PI * 2), glm::vec3(0, 1, 0));
	location = glm::vec4(location, 0) * rotation_y;

	return location;
}

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

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

#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(60);

ofSetWindowTitle("openframeworks");

ofBackground(239);

ofSetLineWidth(3);

ofEnableDepthTest();

}

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

void ofApp::update() {

}

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

void ofApp::draw() {

this->cam.begin();

ofColor color;

for (int v = 0; v < 360; v += 10) {

for (int u = 0; u < 360; u += 20) {

color.setHsb(ofMap(v, 0, 360, 0, 255), 255, 230);

ofSetColor(color);

ofBeginShape();

ofVertex(this->make_point(300, 70, u, v));

ofVertex(this->make_point(300, 70, u + 20, v));

ofVertex(this->make_point(300, 70, u + 20, v + 10));

ofVertex(this->make_point(300, 70, u, v + 10));

ofEndShape();

}

this->cam.end();

}

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

glm::vec3 ofApp::make_point(float R, float r, float u, float v) {

// 数学デッサン教室描いて楽しむ数学たち　P.31

u *= DEG_TO_RAD;

v *= DEG_TO_RAD;

float x = (R + r * cos(u)) * cos(v);

float y = (R + r * cos(u)) * sin(v);

float z = r * sin(u);

auto location = glm::vec3(x, y, z);

auto rotation_y = glm::rotate(glm::mat4(), ofMap(ofNoise(location.y * 0.001 + ofGetFrameNum() * 0.005), 0, 1, -PI * 2, PI * 2), glm::vec3(0, 1, 0));

location = glm::vec4(location, 0) * rotation_y;

return location;

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20190323

2019年3月22日2019年3月22日

Rotating box. openFrameworks

[ Video ]

[ About ]
回転するボックス

Rotating box.

[ 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 mouseEntered(int x, int y) {};
	void mouseExited(int x, int y) {};
	void windowResized(int w, int h) {};
	void dragEvent(ofDragInfo dragInfo) {};
	void gotMessage(ofMessage msg) {};

	ofEasyCam cam;

	int size;
	int span;
	int speed;

	vector<glm::vec3> axis;
	int axis_index;
	int col;
	int direction;

	vector<glm::vec3> locations;
	vector<ofColor> colors;
};

#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 mouseEntered(int x, int y) {};

void mouseExited(int x, int y) {};

void windowResized(int w, int h) {};

void dragEvent(ofDragInfo dragInfo) {};

void gotMessage(ofMessage msg) {};

ofEasyCam cam;

int size;

int span;

int speed;

vector<glm::vec3> axis;

int axis_index;

int col;

int direction;

vector<glm::vec3> locations;

vector<ofColor> colors;

};

#include "ofApp.h"

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

	ofSetFrameRate(60);
	ofSetWindowTitle("openframeworks");

	ofBackground(239);
	ofSetColor(39);
	ofEnableDepthTest();
	ofSetLineWidth(2);

	this->size = 100;
	this->span = this->size * 1.5;
	ofColor color;
	int hue = 0;
	for (int x = -this->span; x <= this->span; x += this->span) {

		color.setHsb(hue, 180, 255);
		hue += 85;
		for (int y = -this->span; y <= this->span; y += this->span) {

			for (int z = -this->span; z <= this->span; z += this->span) {

				this->locations.push_back(glm::vec3(x, y, z));
				this->colors.push_back(color);
			}
		}
	}
	
	this->speed = 2;
	this->axis = { glm::vec3(1, 0,0), glm::vec3(0, 1,0) , glm::vec3(0, 0,1) };
	this->axis_index = 0;
	this->col = 0;
	this->direction = 1;
}

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

	if (ofGetFrameNum() % (90 / this->speed) == 0) {

		this->axis_index = ofRandom(3);
		this->col = (int)ofRandom(3) * this->span - this->span;
		this->direction = ofRandom(2) < 1 ? this->speed : -this->speed;
	}
}

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

	this->cam.begin();

	int color_index = 0;
	for (auto& location : this->locations) {

		if ((this->axis_index == 0 && (int)location.x == this->col) || (this->axis_index == 1 && (int)location.y == this->col) || (this->axis_index == 2 && (int)location.z == this->col)) {

			auto rotation = glm::rotate(glm::mat4(), (float)DEG_TO_RAD * this->direction, this->axis[this->axis_index]);
			location = glm::vec4(location, 0) * rotation;
		}

		ofFill();
		ofSetColor(this->colors[color_index++]);
		ofDrawBox(location, this->size * 0.99);

		ofNoFill();
		ofSetColor(39);
		ofDrawBox(location, this->size);
	}

	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);

ofSetColor(39);

ofEnableDepthTest();

ofSetLineWidth(2);

this->size = 100;

this->span = this->size * 1.5;

ofColor color;

int hue = 0;

for (int x = -this->span; x <= this->span; x += this->span) {

color.setHsb(hue, 180, 255);

hue += 85;

for (int y = -this->span; y <= this->span; y += this->span) {

for (int z = -this->span; z <= this->span; z += this->span) {

this->locations.push_back(glm::vec3(x, y, z));

this->colors.push_back(color);

}

this->speed = 2;

this->axis = { glm::vec3(1, 0,0), glm::vec3(0, 1,0) , glm::vec3(0, 0,1) };

this->axis_index = 0;

this->col = 0;

this->direction = 1;

}

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

void ofApp::update() {

if (ofGetFrameNum() % (90 / this->speed) == 0) {

this->axis_index = ofRandom(3);

this->col = (int)ofRandom(3) * this->span - this->span;

this->direction = ofRandom(2) < 1 ? this->speed : -this->speed;

}

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

void ofApp::draw() {

this->cam.begin();

int color_index = 0;

for (auto& location : this->locations) {

if ((this->axis_index == 0 && (int)location.x == this->col) || (this->axis_index == 1 && (int)location.y == this->col) || (this->axis_index == 2 && (int)location.z == this->col)) {

auto rotation = glm::rotate(glm::mat4(), (float)DEG_TO_RAD * this->direction, this->axis[this->axis_index]);

location = glm::vec4(location, 0) * rotation;

}

ofFill();

ofSetColor(this->colors[color_index++]);

ofDrawBox(location, this->size * 0.99);

ofNoFill();

ofSetColor(39);

ofDrawBox(location, this->size);

}

this->cam.end();

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20190322

2019年3月21日

Waterfall of sphere. openFrameworks

[ Video ]

[ About ]
球体滝流れ。

Waterfall of 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 mouseEntered(int x, int y) {};
	void mouseExited(int x, int y) {};
	void windowResized(int w, int h) {};
	void dragEvent(ofDragInfo dragInfo) {};
	void gotMessage(ofMessage msg) {};

	ofEasyCam cam;
	vector<glm::vec3> locations;
};

#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 mouseEntered(int x, int y) {};

void mouseExited(int x, int y) {};

void windowResized(int w, int h) {};

void dragEvent(ofDragInfo dragInfo) {};

void gotMessage(ofMessage msg) {};

ofEasyCam cam;

vector<glm::vec3> locations;

};

#include "ofApp.h"

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

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

	ofBackground(239);
	ofSetColor(39);
	ofEnableDepthTest();
	ofSetLineWidth(1.5);
}

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

	ofSeedRandom(39);

	this->locations.clear();

	int radius = 300;
	for (int i = 0; i < 500; i++) {

		auto base_location = glm::vec3(ofRandom(-radius, radius), (int)(ofRandom(-radius, radius) + ofGetFrameNum() * 5) % (radius * 2) - radius, ofRandom(-radius, radius));
		glm::vec3 location = glm::normalize(base_location) * radius;
		auto rotation_y = glm::rotate(glm::mat4(), ofMap(ofGetFrameNum() % 300, 0, 300, -PI, PI), glm::vec3(0, 1, 0));
		location = glm::vec4(location, 0) * rotation_y;
		this->locations.push_back(location);
	}
}

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

	this->cam.begin();
	ofRotateX(180);

	for (auto& location : this->locations) {

		ofDrawSphere(location, 3);
		for (auto& other : this->locations) {

			if (location == other) { continue; }
			float distance = glm::distance(location, other);
			if(distance < 50){
				
				ofDrawLine(location, other);
			}
		}
	}

	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);

ofSetColor(39);

ofEnableDepthTest();

ofSetLineWidth(1.5);

}

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

void ofApp::update() {

ofSeedRandom(39);

this->locations.clear();

int radius = 300;

for (int i = 0; i < 500; i++) {

auto base_location = glm::vec3(ofRandom(-radius, radius), (int)(ofRandom(-radius, radius) + ofGetFrameNum() * 5) % (radius * 2) - radius, ofRandom(-radius, radius));

glm::vec3 location = glm::normalize(base_location) * radius;

auto rotation_y = glm::rotate(glm::mat4(), ofMap(ofGetFrameNum() % 300, 0, 300, -PI, PI), glm::vec3(0, 1, 0));

location = glm::vec4(location, 0) * rotation_y;

this->locations.push_back(location);

}

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

void ofApp::draw() {

this->cam.begin();

ofRotateX(180);

for (auto& location : this->locations) {

ofDrawSphere(location, 3);

for (auto& other : this->locations) {

if (location == other) { continue; }

float distance = glm::distance(location, other);

if(distance < 50){

ofDrawLine(location, other);

}

this->cam.end();

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20190321

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