openFrameworks – ページ 470 – プログラミング de 落描き

2021年4月16日2021年4月16日

Roll the ribbon. Draw by openFrameworks

[ Video ]

[ About ]
Roll the ribbon.

[ 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;

	ofMesh face, line;
};

#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;

ofMesh face, line;

};

#include "ofApp.h"

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

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

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

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

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

	ofSeedRandom(39);

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

	int deg_span = 10;
	int radius_span = 1;
	int radius_max = 600;

	ofColor color;

	for (int deg = 0; deg < 360; deg += deg_span) {

		auto noise_seed = glm::vec3(ofRandom(1000), ofRandom(1000), ofRandom(1000));
		color.setHsb(ofMap(deg, 0, 360, 0, 255), 180, 255);

		for (int radius = 60; radius < radius_max; radius += radius_span) {

			auto rotation_x = glm::rotate(glm::mat4(), ofMap(ofNoise(noise_seed.x, ofGetFrameNum() * 0.015 + radius * 0.005), 0, 1, -PI, PI), glm::vec3(1, 0, 0));
			auto rotation_y = glm::rotate(glm::mat4(), ofMap(ofNoise(noise_seed.y, ofGetFrameNum() * 0.015 + radius * 0.005), 0, 1, -PI, PI), glm::vec3(0, 1, 0));
			auto rotation_z = glm::rotate(glm::mat4(), ofMap(ofNoise(noise_seed.z, ofGetFrameNum() * 0.015 + radius * 0.005), 0, 1, -PI, PI), glm::vec3(0, 0, 1));

			vector<glm::vec3> vertices;
			vertices.push_back(glm::vec3(radius * cos((deg - deg_span * 0.5 + 0.5) * DEG_TO_RAD), radius * sin((deg - deg_span * 0.5 + 0.5) * DEG_TO_RAD), 0));
			vertices.push_back(glm::vec3(radius * cos((deg + deg_span * 0.5 - 0.5) * DEG_TO_RAD), radius * sin((deg + deg_span * 0.5 - 0.5) * DEG_TO_RAD), 0));

			for (auto& vertex : vertices) {

				vertex = glm::vec4(vertex, 0) * rotation_z * rotation_y * rotation_x;
			}

			this->face.addVertices(vertices);
			this->line.addVertices(vertices);

			this->face.addColor(color);
			this->face.addColor(color);

			if (radius > 60) {

				this->face.addIndex(this->face.getNumVertices() - 1); this->face.addIndex(this->face.getNumVertices() - 2); this->face.addIndex(this->face.getNumVertices() - 4);
				this->face.addIndex(this->face.getNumVertices() - 1); this->face.addIndex(this->face.getNumVertices() - 4); this->face.addIndex(this->face.getNumVertices() - 3);

				this->line.addIndex(this->line.getNumVertices() - 1); this->line.addIndex(this->line.getNumVertices() - 3);
				this->line.addIndex(this->line.getNumVertices() - 2); this->line.addIndex(this->line.getNumVertices() - 4);
			}
		}

		this->line.addIndex(this->line.getNumVertices() - 1); this->line.addIndex(this->line.getNumVertices() - 2);
	}
}

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

	this->cam.begin();
	ofRotateX(ofGetFrameNum() * 0.185);
	ofRotateY(ofGetFrameNum() * 0.36);

	this->face.draw();
	this->line.drawWireframe();

	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);

ofSetLineWidth(1.5);

ofEnableDepthTest();

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

}

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

void ofApp::update() {

ofSeedRandom(39);

this->face.clear();

this->line.clear();

int deg_span = 10;

int radius_span = 1;

int radius_max = 600;

ofColor color;

for (int deg = 0; deg < 360; deg += deg_span) {

auto noise_seed = glm::vec3(ofRandom(1000), ofRandom(1000), ofRandom(1000));

color.setHsb(ofMap(deg, 0, 360, 0, 255), 180, 255);

for (int radius = 60; radius < radius_max; radius += radius_span) {

auto rotation_x = glm::rotate(glm::mat4(), ofMap(ofNoise(noise_seed.x, ofGetFrameNum() * 0.015 + radius * 0.005), 0, 1, -PI, PI), glm::vec3(1, 0, 0));

auto rotation_y = glm::rotate(glm::mat4(), ofMap(ofNoise(noise_seed.y, ofGetFrameNum() * 0.015 + radius * 0.005), 0, 1, -PI, PI), glm::vec3(0, 1, 0));

auto rotation_z = glm::rotate(glm::mat4(), ofMap(ofNoise(noise_seed.z, ofGetFrameNum() * 0.015 + radius * 0.005), 0, 1, -PI, PI), glm::vec3(0, 0, 1));

vector<glm::vec3> vertices;

vertices.push_back(glm::vec3(radius * cos((deg - deg_span * 0.5 + 0.5) * DEG_TO_RAD), radius * sin((deg - deg_span * 0.5 + 0.5) * DEG_TO_RAD), 0));

vertices.push_back(glm::vec3(radius * cos((deg + deg_span * 0.5 - 0.5) * DEG_TO_RAD), radius * sin((deg + deg_span * 0.5 - 0.5) * DEG_TO_RAD), 0));

for (auto& vertex : vertices) {

vertex = glm::vec4(vertex, 0) * rotation_z * rotation_y * rotation_x;

}

this->face.addVertices(vertices);

this->line.addVertices(vertices);

this->face.addColor(color);

if (radius > 60) {

this->face.addIndex(this->face.getNumVertices() - 1); this->face.addIndex(this->face.getNumVertices() - 2); this->face.addIndex(this->face.getNumVertices() - 4);

this->face.addIndex(this->face.getNumVertices() - 1); this->face.addIndex(this->face.getNumVertices() - 4); this->face.addIndex(this->face.getNumVertices() - 3);

this->line.addIndex(this->line.getNumVertices() - 1); this->line.addIndex(this->line.getNumVertices() - 3);

this->line.addIndex(this->line.getNumVertices() - 2); this->line.addIndex(this->line.getNumVertices() - 4);

}

this->line.addIndex(this->line.getNumVertices() - 1); this->line.addIndex(this->line.getNumVertices() - 2);

}

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

void ofApp::draw() {

this->cam.begin();

ofRotateX(ofGetFrameNum() * 0.185);

ofRotateY(ofGetFrameNum() * 0.36);

this->face.draw();

this->line.drawWireframe();

this->cam.end();

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20210416

2021年4月15日2021年4月15日

Wave 20210415. Draw by openFrameworks

[ Video ]

[ About ]
Wave.

[ 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;

	ofMesh face, line;
};

#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;

ofMesh face, line;

};

#include "ofApp.h"

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

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

	ofBackground(239);
	ofSetLineWidth(1.5);
	ofEnableDepthTest();

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

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

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

	int deg_span = 10;
	int radius_span = 3;
	int radius_max = 600;

	for (int deg = 0; deg < 360; deg += deg_span) {

		for (int radius = 60; radius < radius_max; radius += radius_span) {

			auto noise_location = glm::vec2(cos(deg * DEG_TO_RAD), sin(deg * DEG_TO_RAD));
			auto noise_value = ofNoise(glm::vec3(noise_location * 0.2, radius * 0.01 + ofGetFrameNum() * 0.015));
			auto z = ofMap(noise_value, 0, 1, -150, 150);

			vector<glm::vec3> vertices;
			vertices.push_back(glm::vec3(radius * cos((deg - deg_span * 0.5 + 0.5) * DEG_TO_RAD), radius * sin((deg - deg_span * 0.5 + 0.5) * DEG_TO_RAD), z));
			vertices.push_back(glm::vec3(radius * cos((deg + deg_span * 0.5 - 0.5) * DEG_TO_RAD), radius * sin((deg + deg_span * 0.5 - 0.5) * DEG_TO_RAD), z));
			this->face.addVertices(vertices);
			this->line.addVertices(vertices);

			if (radius > 60) {

				this->face.addIndex(this->face.getNumVertices() - 1); this->face.addIndex(this->face.getNumVertices() - 2); this->face.addIndex(this->face.getNumVertices() - 4);
				this->face.addIndex(this->face.getNumVertices() - 1); this->face.addIndex(this->face.getNumVertices() - 4); this->face.addIndex(this->face.getNumVertices() - 3);

				this->line.addIndex(this->line.getNumVertices() - 1); this->line.addIndex(this->line.getNumVertices() - 3);
				this->line.addIndex(this->line.getNumVertices() - 2); this->line.addIndex(this->line.getNumVertices() - 4);
			}
		}

		this->line.addIndex(this->line.getNumVertices() - 1); this->line.addIndex(this->line.getNumVertices() - 2);
	}

}

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

	this->cam.begin();
	ofRotateZ(ofGetFrameNum() * 0.1);

	ofSetColor(39);
	ofFill();
	ofDrawCircle(glm::vec2(), 58);
	this->face.draw();

	ofSetColor(239);
	ofNoFill();
	ofDrawCircle(glm::vec2(), 58);
	this->line.drawWireframe();

	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);

ofSetLineWidth(1.5);

ofEnableDepthTest();

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

}

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

void ofApp::update() {

this->face.clear();

this->line.clear();

int deg_span = 10;

int radius_span = 3;

int radius_max = 600;

for (int deg = 0; deg < 360; deg += deg_span) {

for (int radius = 60; radius < radius_max; radius += radius_span) {

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

auto noise_value = ofNoise(glm::vec3(noise_location * 0.2, radius * 0.01 + ofGetFrameNum() * 0.015));

auto z = ofMap(noise_value, 0, 1, -150, 150);

vector<glm::vec3> vertices;

vertices.push_back(glm::vec3(radius * cos((deg - deg_span * 0.5 + 0.5) * DEG_TO_RAD), radius * sin((deg - deg_span * 0.5 + 0.5) * DEG_TO_RAD), z));

vertices.push_back(glm::vec3(radius * cos((deg + deg_span * 0.5 - 0.5) * DEG_TO_RAD), radius * sin((deg + deg_span * 0.5 - 0.5) * DEG_TO_RAD), z));

this->face.addVertices(vertices);

this->line.addVertices(vertices);

if (radius > 60) {

this->face.addIndex(this->face.getNumVertices() - 1); this->face.addIndex(this->face.getNumVertices() - 2); this->face.addIndex(this->face.getNumVertices() - 4);

this->face.addIndex(this->face.getNumVertices() - 1); this->face.addIndex(this->face.getNumVertices() - 4); this->face.addIndex(this->face.getNumVertices() - 3);

this->line.addIndex(this->line.getNumVertices() - 1); this->line.addIndex(this->line.getNumVertices() - 3);

this->line.addIndex(this->line.getNumVertices() - 2); this->line.addIndex(this->line.getNumVertices() - 4);

}

this->line.addIndex(this->line.getNumVertices() - 1); this->line.addIndex(this->line.getNumVertices() - 2);

}

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

void ofApp::draw() {

this->cam.begin();

ofRotateZ(ofGetFrameNum() * 0.1);

ofSetColor(39);

ofFill();

ofDrawCircle(glm::vec2(), 58);

this->face.draw();

ofSetColor(239);

ofNoFill();

ofDrawCircle(glm::vec2(), 58);

this->line.drawWireframe();

this->cam.end();

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20210415

2021年4月14日2021年4月14日

Change ring size. Draw by openFrameworks

[ Video ]

[ About ]
Change ring size.

[ 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;

	float r;
};

#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;

float r;

};

#include "ofApp.h"	

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

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

	ofBackground(239);
	ofSetLineWidth(1.5);
	ofEnableDepthTest();

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

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

	ofSeedRandom(39);

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

	float R = 300;
	this->r = ofMap(ofNoise(ofRandom(1000), ofGetFrameNum() * 0.008), 0, 1, 10, 130);
	int v_span = 8;
	int u_span = 10;

	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, 50, u + u_span * 0.5, v) * 0.005, ofGetFrameNum() * 0.01));

			if (noise_value > 0.6) {

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

	int number = 300;
	vector<glm::vec3> location_list(number);
	for (int i = 0; i < number; i++) {

		auto R = 300;
		auto tmp_r = ofRandom(10, this->r * 0.8);
		auto u = ofRandom(360) + ofGetFrameNum() * ofRandom(0.5, 1.0) * (ofRandom(1) < 0.5 ? 1 : -1);
		auto v = ofRandom(360) + ofGetFrameNum() * ofRandom(0.5, 1.0) * (ofRandom(1) < 0.5 ? 1 : -1);

		location_list[i] = this->make_point(R, tmp_r, u, v);
	}

	ofFill();
	ofSetColor(39);
	for (auto& location : location_list) {

		ofDrawSphere(location, 3);
		for (auto& other : location_list) {

			if (location == other) { continue; }

			auto distance = glm::distance(location, other);
			if (distance < 40) {

				ofDrawLine(location, other);
			}
		}
	}

	ofSetColor(239);
	this->face.draw();

	ofSetColor(39);
	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());
}

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#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(60);

ofSetWindowTitle("openFrameworks");

ofBackground(239);

ofSetLineWidth(1.5);

ofEnableDepthTest();

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

}

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

void ofApp::update() {

ofSeedRandom(39);

this->face.clear();

this->frame.clear();

float R = 300;

this->r = ofMap(ofNoise(ofRandom(1000), ofGetFrameNum() * 0.008), 0, 1, 10, 130);

int v_span = 8;

int u_span = 10;

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, 50, u + u_span * 0.5, v) * 0.005, ofGetFrameNum() * 0.01));

if (noise_value > 0.6) {

vector<glm::vec3> vertices;

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

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

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

vertices.push_back(this->make_point(R, this->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();

int number = 300;

vector<glm::vec3> location_list(number);

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

auto R = 300;

auto tmp_r = ofRandom(10, this->r * 0.8);

auto u = ofRandom(360) + ofGetFrameNum() * ofRandom(0.5, 1.0) * (ofRandom(1) < 0.5 ? 1 : -1);

auto v = ofRandom(360) + ofGetFrameNum() * ofRandom(0.5, 1.0) * (ofRandom(1) < 0.5 ? 1 : -1);

location_list[i] = this->make_point(R, tmp_r, u, v);

}

ofFill();

ofSetColor(39);

for (auto& location : location_list) {

ofDrawSphere(location, 3);

for (auto& other : location_list) {

if (location == other) { continue; }

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

if (distance < 40) {

ofDrawLine(location, other);

}

ofSetColor(239);

this->face.draw();

ofSetColor(39);

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 ]
https://github.com/junkiyoshi/Insta20210414

2025年2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