Torus – ページ 25 – プログラミング de 落描き

2020年12月22日2020年12月22日

Torus swell. Draw by openFrameworks

[ Video ]

[ About ]
トーラスのうねり。

Torus swell.

[ 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) {};

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

	ofEasyCam cam;
	vector<ofColor> base_color_list;

	float u_seed, v_seed;
	vector<pair<float, float>> deg_list;
	vector<vector<glm::vec3>> log_list;
	vector<ofColor> color_list;
	vector<float> life_list;
};

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

ofEasyCam cam;

vector<ofColor> base_color_list;

float u_seed, v_seed;

vector<pair<float, float>> deg_list;

vector<vector<glm::vec3>> log_list;

vector<ofColor> color_list;

vector<float> life_list;

};

#include "ofApp.h"	

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

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

	ofBackground(0);
	ofEnableDepthTest();
	ofEnableBlendMode(ofBlendMode::OF_BLENDMODE_ADD);
	ofNoFill();

	this->u_seed = ofRandom(1000);
	this->v_seed = ofRandom(1000);

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

		color.setHex(hex);
		this->base_color_list.push_back(color);
	}
}

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

	while (this->deg_list.size() < 800) {

		auto deg_pair = make_pair(ofRandom(360), ofRandom(360));
		this->deg_list.push_back(deg_pair);
		vector<glm::vec3> log;
		this->log_list.push_back(log);
		this->color_list.push_back(this->base_color_list[(int)ofRandom(this->base_color_list.size())]);
		this->life_list.push_back(ofRandom(60, 120));
	}

	for (int i = this->deg_list.size() - 1; i >= 0; i--) {

		this->life_list[i] -= 1;
		if (this->life_list[i] < 0) {

			this->deg_list.erase(this->deg_list.begin() + i);
			this->log_list.erase(this->log_list.begin() + i);
			this->color_list.erase(this->color_list.begin() + i);
			this->life_list.erase(this->life_list.begin() + i);

			continue;
		}

		auto location = this->make_point(300, 50, this->deg_list[i].first, this->deg_list[i].second);
		auto u_param = ofMap(ofNoise(glm::vec4(location * 0.003, this->u_seed + ofGetFrameNum() * 0.005)), 0, 1, -30, 30);
		auto v_param = ofMap(ofNoise(glm::vec4(location * 0.003, this->v_seed + ofGetFrameNum() * 0.005)), 0, 1, -5, 5);

		this->deg_list[i].first += u_param;
		this->deg_list[i].second += v_param;

		this->log_list[i].push_back(this->make_point(300, 50, this->deg_list[i].first, this->deg_list[i].second));
		while (this->log_list[i].size() > 150) {

			this->log_list[i].erase(this->log_list[i].begin());
		}
	}
}

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

	this->cam.begin();

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

		ofSetColor(this->color_list[i]);

		if (this->life_list[i] > 60) {

			ofSetLineWidth(2);
		}
		else {

			ofSetLineWidth(ofMap(this->life_list[i], 0, 60, 0, 2));
		}

		ofBeginShape();
		ofVertices(this->log_list[i]);
		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;

	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(60);

ofSetWindowTitle("openFrameworks");

ofBackground(0);

ofEnableDepthTest();

ofEnableBlendMode(ofBlendMode::OF_BLENDMODE_ADD);

ofNoFill();

this->u_seed = ofRandom(1000);

this->v_seed = ofRandom(1000);

ofColor color;

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

for (auto hex : hex_list) {

color.setHex(hex);

this->base_color_list.push_back(color);

}

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

void ofApp::update() {

while (this->deg_list.size() < 800) {

auto deg_pair = make_pair(ofRandom(360), ofRandom(360));

this->deg_list.push_back(deg_pair);

vector<glm::vec3> log;

this->log_list.push_back(log);

this->color_list.push_back(this->base_color_list[(int)ofRandom(this->base_color_list.size())]);

this->life_list.push_back(ofRandom(60, 120));

}

for (int i = this->deg_list.size() - 1; i >= 0; i--) {

this->life_list[i] -= 1;

if (this->life_list[i] < 0) {

this->deg_list.erase(this->deg_list.begin() + i);

this->log_list.erase(this->log_list.begin() + i);

this->color_list.erase(this->color_list.begin() + i);

this->life_list.erase(this->life_list.begin() + i);

continue;

}

auto location = this->make_point(300, 50, this->deg_list[i].first, this->deg_list[i].second);

auto u_param = ofMap(ofNoise(glm::vec4(location * 0.003, this->u_seed + ofGetFrameNum() * 0.005)), 0, 1, -30, 30);

auto v_param = ofMap(ofNoise(glm::vec4(location * 0.003, this->v_seed + ofGetFrameNum() * 0.005)), 0, 1, -5, 5);

this->deg_list[i].first += u_param;

this->deg_list[i].second += v_param;

this->log_list[i].push_back(this->make_point(300, 50, this->deg_list[i].first, this->deg_list[i].second));

while (this->log_list[i].size() > 150) {

this->log_list[i].erase(this->log_list[i].begin());

}

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

void ofApp::draw() {

this->cam.begin();

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

ofSetColor(this->color_list[i]);

if (this->life_list[i] > 60) {

ofSetLineWidth(2);

}

else {

ofSetLineWidth(ofMap(this->life_list[i], 0, 60, 0, 2));

}

ofBeginShape();

ofVertices(this->log_list[i]);

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;

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/Insta20201222

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2020年12月5日

Immature Torus. Draw by openFrameworks

[ Video ]

[ About ]
未熟なトーラス。

Immature 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;
	ofMesh face, frame;
};

#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;

ofMesh face, frame;

};

#include "ofApp.h"	

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

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

	ofBackground(239);
	ofEnableDepthTest();

	this->frame.setMode(ofPrimitiveMode::OF_PRIMITIVE_LINES);
}

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

	ofSeedRandom(39);

	this->face.clear();
	this->frame.clear();

	float R = 300;
	int v_span = 8;
	int u_span = 10;

	for (float r = 30; r <= 120; r += 5) {

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

			for (auto u = 0; u < 360; u += u_span) {

				auto noise_value = ofNoise(glm::vec4(this->make_point(R, 90, u + u_span * 0.5, v) * 0.005, r * 0.03 - ofGetFrameNum() * 0.03));

				if (noise_value > 0.65) {

					vector<glm::vec3> vertices;
					vertices.push_back(this->make_point(R, r, u, v - v_span * 0.5));
					vertices.push_back(this->make_point(R, r, u + u_span, v - v_span * 0.5));
					vertices.push_back(this->make_point(R, r, u + u_span, v + v_span * 0.5));
					vertices.push_back(this->make_point(R, r, u, v + v_span * 0.5));

					int index = face.getNumVertices();
					this->face.addVertices(vertices);

					this->face.addIndex(index + 0); face.addIndex(index + 1); face.addIndex(index + 2);
					this->face.addIndex(index + 0); face.addIndex(index + 2); face.addIndex(index + 3);

					this->frame.addVertices(vertices);

					this->frame.addIndex(index + 0); this->frame.addIndex(index + 1);
					this->frame.addIndex(index + 1); this->frame.addIndex(index + 2);
					this->frame.addIndex(index + 2); this->frame.addIndex(index + 3);
					this->frame.addIndex(index + 3); this->frame.addIndex(index + 0);
				}
			}
		}
	}
}

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

	this->cam.begin();
	ofRotateX(ofGetFrameNum() * 0.37);
	ofRotateY(ofGetFrameNum() * 0.72);


	ofSetColor(39);
	this->face.draw();

	ofSetColor(239);
	this->frame.drawWireframe();

	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(239);

ofEnableDepthTest();

this->frame.setMode(ofPrimitiveMode::OF_PRIMITIVE_LINES);

}

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

void ofApp::update() {

ofSeedRandom(39);

this->face.clear();

this->frame.clear();

float R = 300;

int v_span = 8;

int u_span = 10;

for (float r = 30; r <= 120; r += 5) {

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

for (auto u = 0; u < 360; u += u_span) {

auto noise_value = ofNoise(glm::vec4(this->make_point(R, 90, u + u_span * 0.5, v) * 0.005, r * 0.03 - ofGetFrameNum() * 0.03));

if (noise_value > 0.65) {

vector<glm::vec3> vertices;

vertices.push_back(this->make_point(R, r, u, v - v_span * 0.5));

vertices.push_back(this->make_point(R, r, u + u_span, v - v_span * 0.5));

vertices.push_back(this->make_point(R, r, u + u_span, v + v_span * 0.5));

vertices.push_back(this->make_point(R, r, u, v + v_span * 0.5));

int index = face.getNumVertices();

this->face.addVertices(vertices);

this->face.addIndex(index + 0); face.addIndex(index + 1); face.addIndex(index + 2);

this->face.addIndex(index + 0); face.addIndex(index + 2); face.addIndex(index + 3);

this->frame.addVertices(vertices);

this->frame.addIndex(index + 0); this->frame.addIndex(index + 1);

this->frame.addIndex(index + 1); this->frame.addIndex(index + 2);

this->frame.addIndex(index + 2); this->frame.addIndex(index + 3);

this->frame.addIndex(index + 3); this->frame.addIndex(index + 0);

}

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

void ofApp::draw() {

this->cam.begin();

ofRotateX(ofGetFrameNum() * 0.37);

ofRotateY(ofGetFrameNum() * 0.72);

ofSetColor(39);

this->face.draw();

ofSetColor(239);

this->frame.drawWireframe();

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 ]
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2020年11月30日2020年11月30日

Twisting rings. Draw by openFrameworks

[ Video ]

[ About ]
ねじりんぐ。

Twisting rings.

[ 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(1.5);
	ofEnableDepthTest();
}

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

	ofSeedRandom(39);
}

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

	this->cam.begin();

	ofColor color_1(239);
	ofColor color_2(39);

	for (int x = -650; x <= 650; x += 650) {

		for (int y = -650; y <= 650; y += 650) {

			ofPushMatrix();
			ofTranslate(x, y);

			ofRotateY(ofGetFrameNum() * ofRandom(0.25, 1.25));
			ofRotateX(ofGetFrameNum() * ofRandom(0.25, 1.25));

			ofMesh face, frame;
			frame.setMode(ofPrimitiveMode::OF_PRIMITIVE_LINES);

			auto noise_param = ofRandom(1000);

			for (auto deg = 0; deg < 360; deg += 1) {

				auto noise_location = glm::vec2(cos(deg * DEG_TO_RAD), sin(deg * DEG_TO_RAD));
				int u = ofMap(ofNoise(noise_param, noise_location.x * 0.5, noise_location.y * 0.5, ofGetFrameNum() * 0.01), 0, 1, 0, 720);

				face.addVertex(this->make_point(230, 50, (u), deg));
				face.addColor(color_1);
				face.addVertex(this->make_point(230, 50, (u + 180), deg));
				face.addColor(color_2);

				frame.addVertex(this->make_point(230, 50, (u), deg));
				frame.addColor(color_2);
				frame.addVertex(this->make_point(230, 50, (u + 180), deg));
				frame.addColor(color_1);
			}

			for (auto i = 0; i < face.getVertices().size(); i += 2) {

				auto index_0 = i;
				auto index_1 = (i + 1) % face.getVertices().size();
				auto index_2 = (i + 2) % face.getVertices().size();
				auto index_3 = (i + 3) % face.getVertices().size();

				face.addIndex(index_0);
				face.addIndex(index_1);
				face.addIndex(index_2);

				face.addIndex(index_3);
				face.addIndex(index_1);
				face.addIndex(index_2);

				frame.addIndex(index_0); frame.addIndex(index_2);
				frame.addIndex(index_1); frame.addIndex(index_3);
			}

			face.draw();
			frame.drawWireframe();

			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(60);

ofSetWindowTitle("openframeworks");

ofBackground(239);

ofSetLineWidth(1.5);

ofEnableDepthTest();

}

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

void ofApp::update() {

ofSeedRandom(39);

}

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

void ofApp::draw() {

this->cam.begin();

ofColor color_1(239);

ofColor color_2(39);

for (int x = -650; x <= 650; x += 650) {

for (int y = -650; y <= 650; y += 650) {

ofPushMatrix();

ofTranslate(x, y);

ofRotateY(ofGetFrameNum() * ofRandom(0.25, 1.25));

ofRotateX(ofGetFrameNum() * ofRandom(0.25, 1.25));

ofMesh face, frame;

frame.setMode(ofPrimitiveMode::OF_PRIMITIVE_LINES);

auto noise_param = ofRandom(1000);

for (auto deg = 0; deg < 360; deg += 1) {

auto noise_location = glm::vec2(cos(deg * DEG_TO_RAD), sin(deg * DEG_TO_RAD));

int u = ofMap(ofNoise(noise_param, noise_location.x * 0.5, noise_location.y * 0.5, ofGetFrameNum() * 0.01), 0, 1, 0, 720);

face.addVertex(this->make_point(230, 50, (u), deg));

face.addColor(color_1);

face.addVertex(this->make_point(230, 50, (u + 180), deg));

face.addColor(color_2);

frame.addVertex(this->make_point(230, 50, (u), deg));

frame.addColor(color_2);

frame.addVertex(this->make_point(230, 50, (u + 180), deg));

frame.addColor(color_1);

}

for (auto i = 0; i < face.getVertices().size(); i += 2) {

auto index_0 = i;

auto index_1 = (i + 1) % face.getVertices().size();

auto index_2 = (i + 2) % face.getVertices().size();

auto index_3 = (i + 3) % face.getVertices().size();

face.addIndex(index_0);

face.addIndex(index_1);

face.addIndex(index_2);

face.addIndex(index_3);

face.addIndex(index_1);

face.addIndex(index_2);

frame.addIndex(index_0); frame.addIndex(index_2);

frame.addIndex(index_1); frame.addIndex(index_3);

}

face.draw();

frame.drawWireframe();

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/Insta20201130

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2024年4月
月	火	水	木	金	土	日
1	2	3	4	5	6	7
8	9	10	11	12	13	14
15	16	17	18	19	20	21
22	23	24	25	26	27	28
29	30