プログラミング de 落描き – ページ 270 – クリエイティブ・コーディングによる生成物とソース

2023年8月5日

Twist twist. Draw by openFrameworks

[ Video ]

[ About ]
ねじりTwist.

[ 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) {};

	ofTrueTypeFont font;
	string word;
};

#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) {};

ofTrueTypeFont font;

string word;

};

#include "ofApp.h"	

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

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

	ofBackground(39);
	ofSetLineWidth(2);
	ofEnableDepthTest();
	ofSetRectMode(ofRectMode::OF_RECTMODE_CENTER);

	this->font.loadFont("fonts/msgothic.ttc", 40, true, true, true);
	this->word = "TWIST ";
}

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


}

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

	ofTranslate(ofGetWindowSize() * 0.5 + glm::vec2(0, 20));

	ofSeedRandom(39);
	int word_index = 0;
	for (int x = -500; x <= 450; x += 50) {

		for (int y = -400; y <= 450; y += 50) {

			auto location = glm::vec3(x, y, 100);
			int word_index = (word_index + 1) % this->word.size();

			ofPath chara_path = this->font.getCharacterAsPoints(this->word[word_index], true, false);
			vector<ofPolyline> outline = chara_path.getOutline();
			
			ofFill();
			ofSetColor(0);
			ofBeginShape();
			for (int outline_index = 0; outline_index < outline.size(); outline_index++) {

				ofNextContour(true);

				outline[outline_index] = outline[outline_index].getResampledByCount(100);
				auto vertices = outline[outline_index].getVertices();
				for (auto& vertex : vertices) {

					auto rotate_deg = ofMap(ofNoise(location.x, (location.y + vertex.y) * 0.005 + ofGetFrameNum() * 0.01), 0, 1, -180, 180);
					auto rotation = glm::rotate(glm::mat4(), rotate_deg * (float)DEG_TO_RAD, glm::vec3(0, 1, 0));
					auto v = location + glm::vec4(vertex + glm::vec2(-20 , 0), 0) * rotation;

					ofVertex(v);
				}
			}
			ofEndShape(true);

			ofNoFill();
			ofSetColor(255);
			ofBeginShape();
			for (int outline_index = 0; outline_index < outline.size(); outline_index++) {

				ofNextContour(true);

				outline[outline_index] = outline[outline_index].getResampledByCount(100);
				auto vertices = outline[outline_index].getVertices();
				for (auto& vertex : vertices) {

					auto rotate_deg = ofMap(ofNoise(location.x, (location.y + vertex.y) * 0.005 + ofGetFrameNum() * 0.01), 0, 1, -180, 180);
					auto rotation = glm::rotate(glm::mat4(), rotate_deg * (float)DEG_TO_RAD, glm::vec3(0, 1, 0));
					auto v = location + glm::vec4(vertex + glm::vec2(-20 , 0), 0) * rotation;

					ofVertex(v);
				}
			}
			ofEndShape(true);
		}
	}
}

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

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

#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(30);

ofSetWindowTitle("openFrameworks");

ofBackground(39);

ofSetLineWidth(2);

ofEnableDepthTest();

ofSetRectMode(ofRectMode::OF_RECTMODE_CENTER);

this->font.loadFont("fonts/msgothic.ttc", 40, true, true, true);

this->word = "TWIST ";

}

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

void ofApp::update() {

}

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

void ofApp::draw() {

ofTranslate(ofGetWindowSize() * 0.5 + glm::vec2(0, 20));

ofSeedRandom(39);

int word_index = 0;

for (int x = -500; x <= 450; x += 50) {

for (int y = -400; y <= 450; y += 50) {

auto location = glm::vec3(x, y, 100);

int word_index = (word_index + 1) % this->word.size();

ofPath chara_path = this->font.getCharacterAsPoints(this->word[word_index], true, false);

vector<ofPolyline> outline = chara_path.getOutline();

ofFill();

ofSetColor(0);

ofBeginShape();

for (int outline_index = 0; outline_index < outline.size(); outline_index++) {

ofNextContour(true);

outline[outline_index] = outline[outline_index].getResampledByCount(100);

auto vertices = outline[outline_index].getVertices();

for (auto& vertex : vertices) {

auto rotate_deg = ofMap(ofNoise(location.x, (location.y + vertex.y) * 0.005 + ofGetFrameNum() * 0.01), 0, 1, -180, 180);

auto rotation = glm::rotate(glm::mat4(), rotate_deg * (float)DEG_TO_RAD, glm::vec3(0, 1, 0));

auto v = location + glm::vec4(vertex + glm::vec2(-20 , 0), 0) * rotation;

ofVertex(v);

}

ofEndShape(true);

ofNoFill();

ofSetColor(255);

ofBeginShape();

for (int outline_index = 0; outline_index < outline.size(); outline_index++) {

ofNextContour(true);

outline[outline_index] = outline[outline_index].getResampledByCount(100);

auto vertices = outline[outline_index].getVertices();

for (auto& vertex : vertices) {

auto rotate_deg = ofMap(ofNoise(location.x, (location.y + vertex.y) * 0.005 + ofGetFrameNum() * 0.01), 0, 1, -180, 180);

auto rotation = glm::rotate(glm::mat4(), rotate_deg * (float)DEG_TO_RAD, glm::vec3(0, 1, 0));

auto v = location + glm::vec4(vertex + glm::vec2(-20 , 0), 0) * rotation;

ofVertex(v);

}

ofEndShape(true);

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20230805

2023年8月4日

Set of points. Draw by openFrameworks

[ Video ]

[ About ]
点群。

[ Source ]

#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;
	ofMesh mesh;
};

#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;

ofMesh mesh;

};

#include "ofApp.h"

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

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

	ofBackground(255);
	ofSetColor(0, 255, 128, 32);
	ofEnableBlendMode(ofBlendMode::OF_BLENDMODE_SUBTRACT);
}

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

	this->mesh.clear();

	float size = 1;
	for (float x = 80; x <= ofGetWidth() - 80; x += size) {

		for (float y = 80; y <= ofGetHeight() - 80; y += size) {

			if (glm::distance(glm::vec2(x, y), ofGetWindowSize() * 0.5) < 300) {

				float deg = ofMap(ofNoise(x * 0.005, y * 0.005, ofGetFrameNum() * 0.01), 0, 1, -1800, 1800);
				this->mesh.addVertex(glm::vec3(x + size * 3 * cos(deg * DEG_TO_RAD), y + size * 3 * sin(deg * DEG_TO_RAD), ofMap(abs(deg), 0, 360, 0, 150)));
			}
		}
	}
}

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

	this->cam.begin();
	ofTranslate(ofGetWindowSize() * -0.5);

	this->mesh.drawVertices();

	this->cam.end();
}


//--------------------------------------------------------------
int main() {
	ofSetupOpenGL(720, 720, OF_WINDOW);
	ofRunApp(new ofApp());
}

#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(30);

ofSetWindowTitle("openFrameworks");

ofBackground(255);

ofSetColor(0, 255, 128, 32);

ofEnableBlendMode(ofBlendMode::OF_BLENDMODE_SUBTRACT);

}

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

void ofApp::update() {

this->mesh.clear();

float size = 1;

for (float x = 80; x <= ofGetWidth() - 80; x += size) {

for (float y = 80; y <= ofGetHeight() - 80; y += size) {

if (glm::distance(glm::vec2(x, y), ofGetWindowSize() * 0.5) < 300) {

float deg = ofMap(ofNoise(x * 0.005, y * 0.005, ofGetFrameNum() * 0.01), 0, 1, -1800, 1800);

this->mesh.addVertex(glm::vec3(x + size * 3 * cos(deg * DEG_TO_RAD), y + size * 3 * sin(deg * DEG_TO_RAD), ofMap(abs(deg), 0, 360, 0, 150)));

}

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

void ofApp::draw() {

this->cam.begin();

ofTranslate(ofGetWindowSize() * -0.5);

this->mesh.drawVertices();

this->cam.end();

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20230804

2023年8月3日

Connective random walk. Draw by openFrameworks

[ Video ]

[ About ]
ランダムウォークが結ぶ。

[ 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) {};

	vector<glm::vec2> location_list;
	vector<int> 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) {};

vector<glm::vec2> location_list;

vector<int> life_list;

};

#include "ofApp.h"

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

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

	ofBackground(239);
}
//--------------------------------------------------------------
void ofApp::update() {

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

		this->location_list.push_back(glm::vec2(ofRandom(-360, 360), ofRandom(-360, 360)));
		this->life_list.push_back(0);
	}

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

		if (abs(this->location_list[i].x) > 460 || abs(this->location_list[i].y) > 460) {

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

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

	ofTranslate(ofGetWindowSize() * 0.5);

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

		auto deg = ofMap(ofNoise(this->location_list[i].x * 0.0035, this->location_list[i].y * 0.0035, ofGetFrameNum() * 0.005), 0, 1, -360, 360);
		auto next = this->location_list[i] + glm::vec2(5 * cos(deg * DEG_TO_RAD), 5 * sin(deg * DEG_TO_RAD));

		auto color_value = this->life_list[i] < 10 ? ofMap(this->life_list[i], 0, 10, 255, 39) : 39;

		ofSetColor(color_value);
		ofDrawCircle(this->location_list[i], 3);

		for (int k = i + 1; k < this->location_list.size(); k++) {

			auto distance = glm::distance(this->location_list[i], this->location_list[k]);
			if (distance < 80) {

				ofSetColor(color_value, ofMap(distance, 0, 80, 255, 0));
				ofDrawLine(this->location_list[i], this->location_list[k]);
			}
		}

		this->location_list[i] = next;
		this->life_list[i] += 2;
	}
}

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

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

#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(30);

ofSetWindowTitle("openFrameworks");

ofBackground(239);

}

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

void ofApp::update() {

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

this->location_list.push_back(glm::vec2(ofRandom(-360, 360), ofRandom(-360, 360)));

this->life_list.push_back(0);

}

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

if (abs(this->location_list[i].x) > 460 || abs(this->location_list[i].y) > 460) {

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

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

}

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

void ofApp::draw() {

ofTranslate(ofGetWindowSize() * 0.5);

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

auto deg = ofMap(ofNoise(this->location_list[i].x * 0.0035, this->location_list[i].y * 0.0035, ofGetFrameNum() * 0.005), 0, 1, -360, 360);

auto next = this->location_list[i] + glm::vec2(5 * cos(deg * DEG_TO_RAD), 5 * sin(deg * DEG_TO_RAD));

auto color_value = this->life_list[i] < 10 ? ofMap(this->life_list[i], 0, 10, 255, 39) : 39;

ofSetColor(color_value);

ofDrawCircle(this->location_list[i], 3);

for (int k = i + 1; k < this->location_list.size(); k++) {

auto distance = glm::distance(this->location_list[i], this->location_list[k]);

if (distance < 80) {

ofSetColor(color_value, ofMap(distance, 0, 80, 255, 0));

ofDrawLine(this->location_list[i], this->location_list[k]);

}

this->location_list[i] = next;

this->life_list[i] += 2;

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20230803

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