openframeworks – ページ 62 – プログラミング de 落描き

2023年3月14日

HAPPY White Day. Draw by openFrameworks

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ハッピーホワイトディ！

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#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(float theta);

	vector<glm::vec2> location_list;
	vector<glm::vec2> directon_list;
	vector<float> size_list;
	vector<float> speed_list;
	vector<float> max_size_list;
	vector<float> deg_list;
	vector<ofColor> color_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::vec2 make_point(float theta);

vector<glm::vec2> location_list;

vector<glm::vec2> directon_list;

vector<float> size_list;

vector<float> speed_list;

vector<float> max_size_list;

vector<float> deg_list;

vector<ofColor> color_list;

};

#include "ofApp.h"	

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

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

	ofBackground(255);
	//ofEnableBlendMode(ofBlendMode::OF_BLENDMODE_ADD);
}

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

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

		this->size_list[i] += this->speed_list[i];
		this->location_list[i] += this->directon_list[i];

		if (this->size_list[i] > this->max_size_list[i]) {

			this->location_list.erase(this->location_list.begin() + i);
			this->directon_list.erase(this->directon_list.begin() + i);
			this->size_list.erase(this->size_list.begin() + i);
			this->speed_list.erase(this->speed_list.begin() + i);
			this->max_size_list.erase(this->max_size_list.begin() + i);
			this->deg_list.erase(this->deg_list.begin() + i);
			this->color_list.erase(this->color_list.begin() + i);
		}
	}

	ofColor color;
	for (int i = 0; i < 3; i++) {

		auto location = glm::vec2();
		this->location_list.push_back(location);
		auto direction = glm::normalize(glm::vec2(ofRandom(-5, 5), ofRandom(-5, 5))) * ofRandom(3, 10);
		this->directon_list.push_back(direction);
		this->size_list.push_back(1);
		this->speed_list.push_back(ofRandom(1, 2));
		this->max_size_list.push_back(ofRandom(20, 100));
		this->deg_list.push_back(ofRandom(360));
		color.setHsb(ofRandom(255), 255, 255);
		this->color_list.push_back(color);
	}
}

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

	ofTranslate(ofGetWindowSize() * 0.5);
	ofNoFill();

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

		ofPushMatrix();
		ofTranslate(this->location_list[i]);
		ofRotate(this->deg_list[i]);

		vector<glm::vec2> vertices;

		for (int deg = 0; deg < 360; deg += 2) {

			vertices.push_back(this->make_point(deg * DEG_TO_RAD) / 30 * this->size_list[i]);
		}

		auto alpha_1 = this->size_list[i] > this->max_size_list[i] * 0.6 ? ofMap(this->size_list[i], this->max_size_list[i] * 0.6, this->max_size_list[i], 255, 0) : 255;
		auto alpha_2 = this->size_list[i] > this->max_size_list[i] * 0.6 ? ofMap(this->size_list[i], this->max_size_list[i] * 0.6, this->max_size_list[i], 255, 32) : 255;

		ofFill();
		ofSetColor(this->color_list[i], alpha_1);

		ofBeginShape();
		ofVertices(vertices);
		ofEndShape(true);

		ofNoFill();
		ofSetColor(this->color_list[i], alpha_2);

		ofBeginShape();
		ofVertices(vertices);
		ofEndShape(true);

		ofPopMatrix();
	}
}

//--------------------------------------------------------------
//Reference by https://twitter.com/shiffman/status/1095764239665512453
glm::vec2 ofApp::make_point(float theta) {

	float x = 16 * (pow(sin(theta), 3));
	float y = 13 * cos(theta) - 5 * cos(2 * theta) - 2 * cos(3 * theta) - cos(4 * theta);
	return glm::vec2(x, -y);
}

//--------------------------------------------------------------
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(255);

//ofEnableBlendMode(ofBlendMode::OF_BLENDMODE_ADD);

}

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

void ofApp::update() {

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

this->size_list[i] += this->speed_list[i];

this->location_list[i] += this->directon_list[i];

if (this->size_list[i] > this->max_size_list[i]) {

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

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

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

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

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

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

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

}

ofColor color;

for (int i = 0; i < 3; i++) {

auto location = glm::vec2();

this->location_list.push_back(location);

auto direction = glm::normalize(glm::vec2(ofRandom(-5, 5), ofRandom(-5, 5))) * ofRandom(3, 10);

this->directon_list.push_back(direction);

this->size_list.push_back(1);

this->speed_list.push_back(ofRandom(1, 2));

this->max_size_list.push_back(ofRandom(20, 100));

this->deg_list.push_back(ofRandom(360));

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

this->color_list.push_back(color);

}

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

void ofApp::draw() {

ofTranslate(ofGetWindowSize() * 0.5);

ofNoFill();

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

ofPushMatrix();

ofTranslate(this->location_list[i]);

ofRotate(this->deg_list[i]);

vector<glm::vec2> vertices;

for (int deg = 0; deg < 360; deg += 2) {

vertices.push_back(this->make_point(deg * DEG_TO_RAD) / 30 * this->size_list[i]);

}

auto alpha_1 = this->size_list[i] > this->max_size_list[i] * 0.6 ? ofMap(this->size_list[i], this->max_size_list[i] * 0.6, this->max_size_list[i], 255, 0) : 255;

auto alpha_2 = this->size_list[i] > this->max_size_list[i] * 0.6 ? ofMap(this->size_list[i], this->max_size_list[i] * 0.6, this->max_size_list[i], 255, 32) : 255;

ofFill();

ofSetColor(this->color_list[i], alpha_1);

ofBeginShape();

ofVertices(vertices);

ofEndShape(true);

ofNoFill();

ofSetColor(this->color_list[i], alpha_2);

ofBeginShape();

ofVertices(vertices);

ofEndShape(true);

ofPopMatrix();

}

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

//Reference by https://twitter.com/shiffman/status/1095764239665512453

glm::vec2 ofApp::make_point(float theta) {

float x = 16 * (pow(sin(theta), 3));

float y = 13 * cos(theta) - 5 * cos(2 * theta) - 2 * cos(3 * theta) - cos(4 * theta);

return glm::vec2(x, -y);

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20230314

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2023年3月13日

Random walk by many circles. Draw by openFrameworks

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[ About ]
円をたくさん書いて作ったランダムウォーク。

[ 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(0);
	ofSetCircleResolution(72);

}

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

}

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

	ofTranslate(ofGetWindowSize() * 0.5);

	ofSeedRandom(39);
	for (int i = 0; i < 5; i++) {

		auto noise_seed = glm::vec2(ofRandom(1000), ofRandom(1000));
		for (int k = 0; k < 100; k++) {

			auto location = glm::vec2(
				ofMap(ofNoise(noise_seed.x, ofGetFrameNum() * 0.005 + k * 0.005), 0, 1, -340, 340),
				ofMap(ofNoise(noise_seed.y, ofGetFrameNum() * 0.005 + k * 0.005), 0, 1, -340, 340));

			ofSetColor(255);
			ofDrawCircle(location, ofMap(k, 0, 100, 1, 22));
		}
	}

	ofSeedRandom(39);
	for (int i = 0; i < 5; i++) {

		auto noise_seed = glm::vec2(ofRandom(1000), ofRandom(1000));
		for (int k = 0; k < 100; k++) {

			auto location = glm::vec2(
				ofMap(ofNoise(noise_seed.x, ofGetFrameNum() * 0.005 + k * 0.005), 0, 1, -340, 340),
				ofMap(ofNoise(noise_seed.y, ofGetFrameNum() * 0.005 + k * 0.005), 0, 1, -340, 340));

			ofSetColor(0);
			ofDrawCircle(location, ofMap(k, 0, 100, 0, 20));
		}
	}
}

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

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

#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(60);

ofSetWindowTitle("openframeworks");

ofBackground(0);

ofSetCircleResolution(72);

}

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

void ofApp::update() {

}

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

void ofApp::draw() {

ofTranslate(ofGetWindowSize() * 0.5);

ofSeedRandom(39);

for (int i = 0; i < 5; i++) {

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

for (int k = 0; k < 100; k++) {

auto location = glm::vec2(

ofMap(ofNoise(noise_seed.x, ofGetFrameNum() * 0.005 + k * 0.005), 0, 1, -340, 340),

ofMap(ofNoise(noise_seed.y, ofGetFrameNum() * 0.005 + k * 0.005), 0, 1, -340, 340));

ofSetColor(255);

ofDrawCircle(location, ofMap(k, 0, 100, 1, 22));

}

ofSeedRandom(39);

for (int i = 0; i < 5; i++) {

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

for (int k = 0; k < 100; k++) {

auto location = glm::vec2(

ofMap(ofNoise(noise_seed.x, ofGetFrameNum() * 0.005 + k * 0.005), 0, 1, -340, 340),

ofMap(ofNoise(noise_seed.y, ofGetFrameNum() * 0.005 + k * 0.005), 0, 1, -340, 340));

ofSetColor(0);

ofDrawCircle(location, ofMap(k, 0, 100, 0, 20));

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20230313

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2023年3月12日

Connect circles of 3 layer. Draw by openFrameworks

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[ About ]
円をつなぐ３層。

[ 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(0);
	ofSetLineWidth(3);

	ofEnableBlendMode(ofBlendMode::OF_BLENDMODE_ADD);
}

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

	ofSeedRandom(39);
}

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

	ofTranslate(ofGetWindowSize() * 0.5);

	bool flag = true;
	auto x = 0;

	for (int radius = 50; radius <= 300; radius += 100) {

		int deg_start = ofMap(ofNoise(ofRandom(1000), ofGetFrameNum() * 0.001), 0, 1, -360, 360);

		for (int deg = deg_start; deg < deg_start + 360; deg += 1) {

			ofPushMatrix();
			ofRotate(deg);

			auto base_location = glm::vec2(x, radius);
			auto target_location = glm::vec2(x, radius + 80);
			auto distance = target_location - base_location;
			auto len = glm::length(distance);
			auto noise_seed = ofRandom(1000);

			vector<glm::vec2> vertices;
			for (int d = 0; d <= len; d++) {

				auto location = base_location + glm::normalize(distance) * d;

				auto gap = abs(len * 0.5 - d);
				auto power = gap < len * 0.35 ? 1 : ofMap(gap, len * 0.35, len * 0.5, 1, 0);

				auto noise_x = ofMap(ofNoise(noise_seed, location.x * 0.05, location.y * 0.015 + ofGetFrameNum() * 0.05), 0, 1, -10, 10);
				location += glm::vec2(noise_x * power, 0);

				vertices.push_back(location);
			}

			ofColor color;
			color.setHsb(ofMap(deg, deg_start, deg_start + 360, 0, 255), 200, 255);

			ofSetColor(color);

			ofNoFill();
			ofBeginShape();
			ofVertices(vertices);
			ofEndShape();

			ofFill();
			ofDrawCircle(vertices.front(), 2);
			ofDrawCircle(vertices.back(), 2);

			ofPopMatrix();
		}
	}
}

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

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

#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(60);

ofSetWindowTitle("openframeworks");

ofBackground(0);

ofSetLineWidth(3);

ofEnableBlendMode(ofBlendMode::OF_BLENDMODE_ADD);

}

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

void ofApp::update() {

ofSeedRandom(39);

}

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

void ofApp::draw() {

ofTranslate(ofGetWindowSize() * 0.5);

bool flag = true;

auto x = 0;

for (int radius = 50; radius <= 300; radius += 100) {

int deg_start = ofMap(ofNoise(ofRandom(1000), ofGetFrameNum() * 0.001), 0, 1, -360, 360);

for (int deg = deg_start; deg < deg_start + 360; deg += 1) {

ofPushMatrix();

ofRotate(deg);

auto base_location = glm::vec2(x, radius);

auto target_location = glm::vec2(x, radius + 80);

auto distance = target_location - base_location;

auto len = glm::length(distance);

auto noise_seed = ofRandom(1000);

vector<glm::vec2> vertices;

for (int d = 0; d <= len; d++) {

auto location = base_location + glm::normalize(distance) * d;

auto gap = abs(len * 0.5 - d);

auto power = gap < len * 0.35 ? 1 : ofMap(gap, len * 0.35, len * 0.5, 1, 0);

auto noise_x = ofMap(ofNoise(noise_seed, location.x * 0.05, location.y * 0.015 + ofGetFrameNum() * 0.05), 0, 1, -10, 10);

location += glm::vec2(noise_x * power, 0);

vertices.push_back(location);

}

ofColor color;

color.setHsb(ofMap(deg, deg_start, deg_start + 360, 0, 255), 200, 255);

ofSetColor(color);

ofNoFill();

ofBeginShape();

ofVertices(vertices);

ofEndShape();

ofFill();

ofDrawCircle(vertices.front(), 2);

ofDrawCircle(vertices.back(), 2);

ofPopMatrix();

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20230312

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2024年11月
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