プログラミング de 落描き – ページ 372 – クリエイティブ・コーディングによる生成物とソース

2022年6月16日

large and small. Draw by openFrameworks

[ Video ]

[ About ]
大きくなったり、小さくなったり。

large and small.

[ 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;

	vector<glm::vec3> base_location_list;

	vector<tuple<ofColor, glm::vec3, float>> sphere_list; // BodyColor, Location, size
	int number_of_sphere;
};

#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;

vector<glm::vec3> base_location_list;

vector<tuple<ofColor, glm::vec3, float>> sphere_list; // BodyColor, Location, size

int number_of_sphere;

};

#include "ofApp.h"

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

	ofSetFrameRate(30);
	ofSetWindowTitle("openFrameworks");

	ofBackground(0);
	ofSetLineWidth(0.5);
	ofEnableDepthTest();

	auto ico_sphere = ofIcoSpherePrimitive(1, 5);

	this->number_of_sphere = 2500;
	while (this->sphere_list.size() < this->number_of_sphere) {

		auto tmp_location = this->make_point(300, ofRandom(0, 60), ofRandom(360), ofRandom(360));
		auto radius = this->sphere_list.size() < 110 ? ofRandom(10, 50) : ofRandom(2, 20);

		bool flag = true;
		for (int i = 0; i < this->sphere_list.size(); i++) {

			if (glm::distance(tmp_location, get<1>(this->sphere_list[i])) < get<2>(this->sphere_list[i]) + radius) {

				flag = false;
				break;
			}
		}

		if (flag) {

			ofColor color;
			color.setHsb(ofRandom(255), 200, 255);

			auto size = (radius * 2) / sqrt(3);

			this->sphere_list.push_back(make_tuple(color, tmp_location, size));
		}
	}
}

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

	ofSeedRandom(39);
}

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

	this->cam.begin();
	ofRotateZ(ofGetFrameNum() * 0.66666666666666666);

	for (int i = 0; i < this->sphere_list.size(); i++) {

		auto location = get<1>(this->sphere_list[i]);
		auto size = get<2>(this->sphere_list[i]);

		ofPushMatrix();
		ofTranslate(location);

		ofRotateZ(ofRandom(360));
		ofRotateY(ofRandom(360));
		ofRotateX(ofRandom(360));

		ofColor color;
		color.setHsb(ofRandom(255), 200, 255);

		auto param = ofGetFrameNum() % 120;
		float scale = 1;
		if (param < 60) {
		
			scale = ofMap(param, 0, 60, 0, 1);
		}
		else {

			scale = ofMap(param, 60, 120, 1, 0);
		}

		ofFill();
		ofSetColor(color);
		ofDrawSphere(size * scale);

		ofPopMatrix();
	}

	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;

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

	return glm::vec3(x, y, z);
}

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

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

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#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(30);

ofSetWindowTitle("openFrameworks");

ofBackground(0);

ofSetLineWidth(0.5);

ofEnableDepthTest();

auto ico_sphere = ofIcoSpherePrimitive(1, 5);

this->number_of_sphere = 2500;

while (this->sphere_list.size() < this->number_of_sphere) {

auto tmp_location = this->make_point(300, ofRandom(0, 60), ofRandom(360), ofRandom(360));

auto radius = this->sphere_list.size() < 110 ? ofRandom(10, 50) : ofRandom(2, 20);

bool flag = true;

for (int i = 0; i < this->sphere_list.size(); i++) {

if (glm::distance(tmp_location, get<1>(this->sphere_list[i])) < get<2>(this->sphere_list[i]) + radius) {

flag = false;

break;

}

if (flag) {

ofColor color;

color.setHsb(ofRandom(255), 200, 255);

auto size = (radius * 2) / sqrt(3);

this->sphere_list.push_back(make_tuple(color, tmp_location, size));

}

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

void ofApp::update() {

ofSeedRandom(39);

}

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

void ofApp::draw() {

this->cam.begin();

ofRotateZ(ofGetFrameNum() * 0.66666666666666666);

for (int i = 0; i < this->sphere_list.size(); i++) {

auto location = get<1>(this->sphere_list[i]);

auto size = get<2>(this->sphere_list[i]);

ofPushMatrix();

ofTranslate(location);

ofRotateZ(ofRandom(360));

ofRotateY(ofRandom(360));

ofRotateX(ofRandom(360));

ofColor color;

color.setHsb(ofRandom(255), 200, 255);

auto param = ofGetFrameNum() % 120;

float scale = 1;

if (param < 60) {

scale = ofMap(param, 0, 60, 0, 1);

}

else {

scale = ofMap(param, 60, 120, 1, 0);

}

ofFill();

ofSetColor(color);

ofDrawSphere(size * scale);

ofPopMatrix();

}

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;

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

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

auto z = r * sin(u);

return glm::vec3(x, y, z);

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20220616

2022年6月15日

Waving. Draw by openFrameworks

[ Video ]

[ About ]
波。

Waving.

[ 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;

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

#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;

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

};

#include "ofApp.h"	

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

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

	ofBackground(0);
	ofSetLineWidth(1);
	ofEnableDepthTest();
}

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

}

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

	this->cam.begin();

	int u = ofGetFrameNum() * 3;
	for (int v = 0; v < 360; v += 3) {

		auto noise_location = this->make_point(300, 40, u, v);
		auto r = ofMap(ofNoise(glm::vec4(noise_location * 0.03, ofGetFrameNum() * .005)), 0, 1, 0, 120);

		vector<glm::vec3> vertices;

		vertices.push_back(this->make_point(300, r, u, v - 1));
		vertices.push_back(this->make_point(300, r, u, v + 1));
		vertices.push_back(this->make_point(300, r, u + 180, v + 1));
		vertices.push_back(this->make_point(300, r, u + 180, v - 1));

		ofFill();
		ofSetColor(0);
		ofBeginShape();
		ofVertices(vertices);
		ofEndShape(true);

		ofNoFill();
		ofSetColor(255);
		ofBeginShape();
		ofVertices(vertices);
		ofEndShape(true);

		u += 9;
	}

	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;

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

	return glm::vec3(x, y, z);
}


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

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

#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(60);

ofSetWindowTitle("openFrameworks");

ofBackground(0);

ofSetLineWidth(1);

ofEnableDepthTest();

}

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

void ofApp::update() {

}

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

void ofApp::draw() {

this->cam.begin();

int u = ofGetFrameNum() * 3;

for (int v = 0; v < 360; v += 3) {

auto noise_location = this->make_point(300, 40, u, v);

auto r = ofMap(ofNoise(glm::vec4(noise_location * 0.03, ofGetFrameNum() * .005)), 0, 1, 0, 120);

vector<glm::vec3> vertices;

vertices.push_back(this->make_point(300, r, u, v - 1));

vertices.push_back(this->make_point(300, r, u, v + 1));

vertices.push_back(this->make_point(300, r, u + 180, v + 1));

vertices.push_back(this->make_point(300, r, u + 180, v - 1));

ofFill();

ofSetColor(0);

ofBeginShape();

ofVertices(vertices);

ofEndShape(true);

ofNoFill();

ofSetColor(255);

ofBeginShape();

ofVertices(vertices);

ofEndShape(true);

u += 9;

}

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;

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

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

auto z = r * sin(u);

return glm::vec3(x, y, z);

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20220615

2022年6月14日

Random walker train on circle. Draw by openFrameworks

[ Video ]

[ About ]
ランダムウォーク列車。

Random walker on circle.

[ 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) {};
};

#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) {};

};

#include "ofApp.h"

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

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

	ofBackground(255);
	ofSetLineWidth(2);
}

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

	ofSeedRandom(39);
}

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

	ofColor color;
	vector<ofColor> color_list;
	vector<int> hex_list = { 0xef476f, 0xffd166, 0x06d6a0, 0x118ab2, 0x073b4c };
	for (auto hex : hex_list) {

		color.setHex(hex);
		color_list.push_back(color);
	}

	ofTranslate(ofGetWidth() * 0.5, ofGetHeight() * 0.5);

	auto noise_seed = glm::vec2(ofRandom(1000), ofRandom(1000));
	for (int k = 0; k < 24; k++) {

		ofMesh mesh;
		vector<glm::vec3> right, left, frame;

		glm::vec3 last_location;
		float last_theta;

		for (int i = 0; i < 28; i++) {

			auto radius = ofMap(ofNoise((ofGetFrameNum() + i + k * 30) * 0.02), 0, 1 , 200 , 380);
			auto next_radius = ofMap(ofNoise((ofGetFrameNum() + i + 1 + k * 30) * 0.02), 0, 1, 200, 380);

			auto location = glm::vec3(radius * cos((ofGetFrameNum() + i + k * 30) * DEG_TO_RAD), radius * sin((ofGetFrameNum() + i + k * 30) * DEG_TO_RAD), 0);
			auto next = glm::vec3(next_radius * cos((ofGetFrameNum() + i + 1 + k * 30) * DEG_TO_RAD), next_radius * sin((ofGetFrameNum() + i + 1 + k * 30) * DEG_TO_RAD), 0);

			auto direction = next - location;
			auto theta = atan2(direction.y, direction.x);

			right.push_back(location + glm::vec3(ofMap(i, 0, 25, 0, 8) * cos(theta + PI * 0.5), ofMap(i, 0, 25, 0, 8) * sin(theta + PI * 0.5), 0));
			left.push_back(location + glm::vec3(ofMap(i, 0, 25, 0, 8) * cos(theta - PI * 0.5), ofMap(i, 0, 25, 0, 8) * sin(theta - PI * 0.5), 0));

			last_location = location;
			last_theta = theta;
		}

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

			mesh.addVertex(left[i]);
			mesh.addVertex(right[i]);
		}


		for (int i = 0; i < mesh.getNumVertices() - 2; i += 2) {

			mesh.addIndex(i + 0); mesh.addIndex(i + 1); mesh.addIndex(i + 3);
			mesh.addIndex(i + 0); mesh.addIndex(i + 2); mesh.addIndex(i + 3);
		}

		mesh.addVertex(last_location);
		int index = mesh.getNumVertices();
		for (auto theta = last_theta - PI * 0.5; theta <= last_theta + PI * 0.5; theta += PI / 20) {

			mesh.addVertex(last_location + glm::vec3(8 * cos(theta), 8 * sin(theta), 0));
			frame.push_back(last_location + glm::vec3(8 * cos(theta), 8 * sin(theta), 0));
		}

		for (int i = index; i < mesh.getNumVertices() - 1; i++) {

			mesh.addIndex(index); mesh.addIndex(i + 0); mesh.addIndex(i + 1);
		}

		ofSetColor(color_list[(int)ofRandom(color_list.size())]);
		mesh.draw();

		ofSetColor(255);
		ofNoFill();
		ofBeginShape();
		ofVertices(frame);
		reverse(right.begin(), right.end());
		ofVertices(right);
		ofVertices(left);
		ofEndShape();
	}
}

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

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

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#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(60);

ofSetWindowTitle("openframeworks");

ofBackground(255);

ofSetLineWidth(2);

}

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

void ofApp::update() {

ofSeedRandom(39);

}

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

void ofApp::draw() {

ofColor color;

vector<ofColor> color_list;

vector<int> hex_list = { 0xef476f, 0xffd166, 0x06d6a0, 0x118ab2, 0x073b4c };

for (auto hex : hex_list) {

color.setHex(hex);

color_list.push_back(color);

}

ofTranslate(ofGetWidth() * 0.5, ofGetHeight() * 0.5);

auto noise_seed = glm::vec2(ofRandom(1000), ofRandom(1000));

for (int k = 0; k < 24; k++) {

ofMesh mesh;

vector<glm::vec3> right, left, frame;

glm::vec3 last_location;

float last_theta;

for (int i = 0; i < 28; i++) {

auto radius = ofMap(ofNoise((ofGetFrameNum() + i + k * 30) * 0.02), 0, 1 , 200 , 380);

auto next_radius = ofMap(ofNoise((ofGetFrameNum() + i + 1 + k * 30) * 0.02), 0, 1, 200, 380);

auto location = glm::vec3(radius * cos((ofGetFrameNum() + i + k * 30) * DEG_TO_RAD), radius * sin((ofGetFrameNum() + i + k * 30) * DEG_TO_RAD), 0);

auto next = glm::vec3(next_radius * cos((ofGetFrameNum() + i + 1 + k * 30) * DEG_TO_RAD), next_radius * sin((ofGetFrameNum() + i + 1 + k * 30) * DEG_TO_RAD), 0);

auto direction = next - location;

auto theta = atan2(direction.y, direction.x);

right.push_back(location + glm::vec3(ofMap(i, 0, 25, 0, 8) * cos(theta + PI * 0.5), ofMap(i, 0, 25, 0, 8) * sin(theta + PI * 0.5), 0));

left.push_back(location + glm::vec3(ofMap(i, 0, 25, 0, 8) * cos(theta - PI * 0.5), ofMap(i, 0, 25, 0, 8) * sin(theta - PI * 0.5), 0));

last_location = location;

last_theta = theta;

}

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

mesh.addVertex(left[i]);

mesh.addVertex(right[i]);

}

for (int i = 0; i < mesh.getNumVertices() - 2; i += 2) {

mesh.addIndex(i + 0); mesh.addIndex(i + 1); mesh.addIndex(i + 3);

mesh.addIndex(i + 0); mesh.addIndex(i + 2); mesh.addIndex(i + 3);

}

mesh.addVertex(last_location);

int index = mesh.getNumVertices();

for (auto theta = last_theta - PI * 0.5; theta <= last_theta + PI * 0.5; theta += PI / 20) {

mesh.addVertex(last_location + glm::vec3(8 * cos(theta), 8 * sin(theta), 0));

frame.push_back(last_location + glm::vec3(8 * cos(theta), 8 * sin(theta), 0));

}

for (int i = index; i < mesh.getNumVertices() - 1; i++) {

mesh.addIndex(index); mesh.addIndex(i + 0); mesh.addIndex(i + 1);

}

ofSetColor(color_list[(int)ofRandom(color_list.size())]);

mesh.draw();

ofSetColor(255);

ofNoFill();

ofBeginShape();

ofVertices(frame);

reverse(right.begin(), right.end());

ofVertices(right);

ofVertices(left);

ofEndShape();

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20220614

2025年7月
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