junkiyoshi – ページ 609 – プログラミング de 落描き

2019年5月19日

Ring that grows. openFrameworks

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[ About ]
成長する輪っか

Ring that grows.

[ 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;
};

#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;

};

#include "ofApp.h"

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

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

	ofBackground(239);
	ofSetColor(39);
	ofEnableDepthTest();
	ofSetLineWidth(3);
}
//--------------------------------------------------------------
void ofApp::update() {

	ofSeedRandom(39);
}

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

	this->cam.begin();

	auto deg_span = 15;
	auto width = 15;
	for(auto i = 0; i < 6; i++){

		int radius = (i * 50 + ofGetFrameNum()) % 300;
		auto noise_seed_x = ofRandom(1000);
		auto noise_seed_z = ofRandom(1000);
		auto noise_seed_deg = ofRandom(1000);

		ofPushMatrix();

		ofRotateY(ofMap(ofNoise(noise_seed_z, ofGetFrameNum() * 0.0005), 0, 1, -180, 180));
		ofRotateX(ofMap(ofNoise(noise_seed_x, ofGetFrameNum() * 0.0005), 0, 1, -180, 180));
		int deg_start = ofGetFrameNum() * 0.5 + radius;
		for (auto deg = deg_start; deg < deg_start + 360; deg += deg_span) {

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

			ofFill();
			ofSetColor(239);
			ofBeginShape();
			ofVertices(vertices);
			ofEndShape(true);

			ofNoFill();
			ofSetColor(39);
			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);

ofSetColor(39);

ofEnableDepthTest();

ofSetLineWidth(3);

}

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

void ofApp::update() {

ofSeedRandom(39);

}

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

void ofApp::draw() {

this->cam.begin();

auto deg_span = 15;

auto width = 15;

for(auto i = 0; i < 6; i++){

int radius = (i * 50 + ofGetFrameNum()) % 300;

auto noise_seed_x = ofRandom(1000);

auto noise_seed_z = ofRandom(1000);

auto noise_seed_deg = ofRandom(1000);

ofPushMatrix();

ofRotateY(ofMap(ofNoise(noise_seed_z, ofGetFrameNum() * 0.0005), 0, 1, -180, 180));

ofRotateX(ofMap(ofNoise(noise_seed_x, ofGetFrameNum() * 0.0005), 0, 1, -180, 180));

int deg_start = ofGetFrameNum() * 0.5 + radius;

for (auto deg = deg_start; deg < deg_start + 360; deg += deg_span) {

vector<glm::vec3> vertices;

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

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

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

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

ofFill();

ofSetColor(239);

ofBeginShape();

ofVertices(vertices);

ofEndShape(true);

ofNoFill();

ofSetColor(39);

ofBeginShape();

ofVertices(vertices);

ofEndShape(true);

}

ofPopMatrix();

}

this->cam.end();

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20190519

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2019年5月18日

Bubble intersection point. openFrameworks

[ Video ]

[ About ]
泡っぽい動きと交点

Bubble intersection point.

[ 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) {};

	float radius;
	vector<pair<glm::vec2, glm::vec2>> particles;
	bool calculate_angle(glm::vec2 location_1, float radius_1, glm::vec2 location_2, float radius_2, double& theta, double& a);
};

#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) {};

float radius;

vector<pair<glm::vec2, glm::vec2>> particles;

bool calculate_angle(glm::vec2 location_1, float radius_1, glm::vec2 location_2, float radius_2, double& theta, double& a);

};

#include "ofApp.h"

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

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

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

	this->radius = 40;
	for (auto i = 0; i < 30; i++) {

		auto location = glm::vec2(ofRandom(ofGetWidth() * 0.5 - this->radius * 2, ofGetWidth() * 0.5 + this->radius * 2), ofGetHeight() - this->radius * 0.5);
		auto direction = glm::vec2(ofRandom(-1.2, 1.2), ofRandom(-3, -6));
		auto particle = make_pair(location, direction);
		this->particles.push_back(particle);
	}
}
//--------------------------------------------------------------
void ofApp::update() {

	for (auto& particle : this->particles) {

		particle.first += particle.second;

		if (particle.first.y < -this->radius) {

			particle.first = glm::vec2(ofRandom(ofGetWidth() * 0.5 - this->radius * 2, ofGetWidth() * 0.5 + this->radius * 2), ofGetHeight() - this->radius * 0.5);
			particle.second = glm::vec2(ofRandom(-1.2, 1.2), ofRandom(-1, -5));
		}
	}
}

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

	for (auto& particle : this->particles) {

		ofNoFill();
		ofDrawCircle(particle.first, this->radius);

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

			if (particle == other) { continue; }

			double theta, a;
			if (this->calculate_angle(particle.first, this->radius, other.first, this->radius, theta, a)) {
				
				auto point_1 = particle.first + glm::vec2(this->radius * cos(theta + a), this->radius * sin(theta + a));
				auto point_2 = particle.first + glm::vec2(this->radius * cos(theta - a), this->radius * sin(theta - a));

				ofFill();
				ofDrawCircle(point_1, 8);
				ofDrawCircle(point_2, 8);
			}
			
		}
	}
}

//--------------------------------------------------------------
bool ofApp::calculate_angle(glm::vec2 location_1, float radius_1, glm::vec2 location_2, float radius_2, double& theta, double& a) {

	auto distance = glm::distance(location_1, location_2);
	if (distance > radius_1 + radius_2 || distance < radius_1 - radius_2) { return false; }

	theta = atan2(location_2.y - location_1.y, location_2.x - location_1.x);
	auto cos_a = (pow(distance, 2) + pow(radius_1, 2) - pow(radius_2, 2)) / (2 * distance * radius_1);
	a = acos(cos_a);
	return true;
}


//--------------------------------------------------------------
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(2);

this->radius = 40;

for (auto i = 0; i < 30; i++) {

auto location = glm::vec2(ofRandom(ofGetWidth() * 0.5 - this->radius * 2, ofGetWidth() * 0.5 + this->radius * 2), ofGetHeight() - this->radius * 0.5);

auto direction = glm::vec2(ofRandom(-1.2, 1.2), ofRandom(-3, -6));

auto particle = make_pair(location, direction);

this->particles.push_back(particle);

}

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

void ofApp::update() {

for (auto& particle : this->particles) {

particle.first += particle.second;

if (particle.first.y < -this->radius) {

particle.first = glm::vec2(ofRandom(ofGetWidth() * 0.5 - this->radius * 2, ofGetWidth() * 0.5 + this->radius * 2), ofGetHeight() - this->radius * 0.5);

particle.second = glm::vec2(ofRandom(-1.2, 1.2), ofRandom(-1, -5));

}

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

void ofApp::draw() {

for (auto& particle : this->particles) {

ofNoFill();

ofDrawCircle(particle.first, this->radius);

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

if (particle == other) { continue; }

double theta, a;

if (this->calculate_angle(particle.first, this->radius, other.first, this->radius, theta, a)) {

auto point_1 = particle.first + glm::vec2(this->radius * cos(theta + a), this->radius * sin(theta + a));

auto point_2 = particle.first + glm::vec2(this->radius * cos(theta - a), this->radius * sin(theta - a));

ofFill();

ofDrawCircle(point_1, 8);

ofDrawCircle(point_2, 8);

}

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

bool ofApp::calculate_angle(glm::vec2 location_1, float radius_1, glm::vec2 location_2, float radius_2, double& theta, double& a) {

auto distance = glm::distance(location_1, location_2);

if (distance > radius_1 + radius_2 || distance < radius_1 - radius_2) { return false; }

theta = atan2(location_2.y - location_1.y, location_2.x - location_1.x);

auto cos_a = (pow(distance, 2) + pow(radius_1, 2) - pow(radius_2, 2)) / (2 * distance * radius_1);

a = acos(cos_a);

return true;

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20190518

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2019年5月17日

Overlap colors. openFrameworks

[ Video ]

[ About ]
色の重なり合わせ

Overlap colors.

[ 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::vec2 make_point(int len, int param);
};

#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::vec2 make_point(int len, int param);

};

#include "ofApp.h"

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

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

	ofBackground(239);
	ofSetBackgroundAuto(false);

	ofSetLineWidth(1.5);
}

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

	ofSeedRandom(39);
}

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

	ofColor color;
	auto size = 144;
	for (auto x = size * 0.5; x < ofGetWidth(); x += size) {

		for (auto y = size * 0.5; y < ofGetHeight(); y += size) {

			float noise_seed_1 = ofRandom(1000);
			float noise_seed_2 = ofRandom(1000);

			int start_param = ofMap(ofNoise(noise_seed_1, ofGetFrameNum() * 0.005), 0, 1, 0, 100);
			int end_param = start_param + ofMap(ofNoise(noise_seed_2, ofGetFrameNum() * 0.005), 0, 1, 25, 50);

			color.setHsb(((int)ofRandom(1000) + ofGetFrameNum() * 3) % 255, 180, 255);
			ofSetColor(color);

			vector<glm::vec2> vertices;
			for (int param = start_param; param < end_param; param++) {

				vertices.push_back(this->make_point(size * 0.95, param) + glm::vec2(x, y));
			}

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

			ofNoFill();
			ofSetColor(39);
			ofBeginShape();
			ofVertices(vertices);
			ofEndShape(true);
		}
	}
}

//--------------------------------------------------------------
glm::vec2 ofApp::make_point(int len, int param) {

	param = param % 100;
	if (param < 25) {

		return glm::vec2(ofMap(param, 0, 25, -len * 0.5, len * 0.5), -len * 0.5);
	}
	else if (param < 50) {

		return glm::vec2(len * 0.5, ofMap(param, 25, 50, -len * 0.5, len * 0.5));
	}
	else if (param < 75) {

		return glm::vec2(ofMap(param, 50, 75, len * 0.5, -len * 0.5), len * 0.5);
	}
	else {

		return glm::vec2(-len * 0.5, ofMap(param, 75, 100, len * 0.5, -len * 0.5));
	}
}

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

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

#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(60);

ofSetWindowTitle("openFrameworks");

ofBackground(239);

ofSetBackgroundAuto(false);

ofSetLineWidth(1.5);

}

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

void ofApp::update() {

ofSeedRandom(39);

}

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

void ofApp::draw() {

ofColor color;

auto size = 144;

for (auto x = size * 0.5; x < ofGetWidth(); x += size) {

for (auto y = size * 0.5; y < ofGetHeight(); y += size) {

float noise_seed_1 = ofRandom(1000);

float noise_seed_2 = ofRandom(1000);

int start_param = ofMap(ofNoise(noise_seed_1, ofGetFrameNum() * 0.005), 0, 1, 0, 100);

int end_param = start_param + ofMap(ofNoise(noise_seed_2, ofGetFrameNum() * 0.005), 0, 1, 25, 50);

color.setHsb(((int)ofRandom(1000) + ofGetFrameNum() * 3) % 255, 180, 255);

ofSetColor(color);

vector<glm::vec2> vertices;

for (int param = start_param; param < end_param; param++) {

vertices.push_back(this->make_point(size * 0.95, param) + glm::vec2(x, y));

}

ofFill();

ofSetColor(color);

ofBeginShape();

ofVertices(vertices);

ofEndShape(true);

ofNoFill();

ofSetColor(39);

ofBeginShape();

ofVertices(vertices);

ofEndShape(true);

}

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

glm::vec2 ofApp::make_point(int len, int param) {

param = param % 100;

if (param < 25) {

return glm::vec2(ofMap(param, 0, 25, -len * 0.5, len * 0.5), -len * 0.5);

}

else if (param < 50) {

return glm::vec2(len * 0.5, ofMap(param, 25, 50, -len * 0.5, len * 0.5));

}

else if (param < 75) {

return glm::vec2(ofMap(param, 50, 75, len * 0.5, -len * 0.5), len * 0.5);

}

else {

return glm::vec2(-len * 0.5, ofMap(param, 75, 100, len * 0.5, -len * 0.5));

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20190517

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