プログラミング de 落描き – ページ 281 – 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7月5日

Noisy Circle. Draw by openFrameworks

[ Video ]

[ About ]
ノイズ円。

[ 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) {};

	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) {};

ofMesh mesh;

};

#include "ofApp.h"

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

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

	ofBackground(239);
}

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

	ofSeedRandom(39);

	this->mesh.clear();

	int len = 580;
	int span = 1;
	ofColor color;


	for (int x = len * -0.5; x < len * 0.5; x += span) {

		for (int y = len * -0.5; y < len * 0.5; y += span) {

			if (glm::length(glm::vec2(x, y)) > 250) { continue; }

			auto noise_value = ofMap(ofNoise(x * 0.008, y * 0.008, ofGetFrameNum() * 0.005), 0, 1, 0, 10);

			this->mesh.addVertex(glm::vec3(x, y, 0));
			this->mesh.addVertex(glm::vec3(x + span, y, 0));
			this->mesh.addVertex(glm::vec3(x + span, y + span, 0));
			this->mesh.addVertex(glm::vec3(x, y + span, 0));

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

			noise_value = noise_value - (int)noise_value;
			color = ofColor(ofMap(abs(noise_value - 0.5), 0, 0.5, 39, 239), 39, 39);
			for (int i = 0; i < 4; i++) {

				this->mesh.addColor(color);
			}
		}
	}
}

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

	ofTranslate(ofGetWindowSize() * 0.5);

	this->mesh.draw();
}

//--------------------------------------------------------------
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() {

ofSeedRandom(39);

this->mesh.clear();

int len = 580;

int span = 1;

ofColor color;

for (int x = len * -0.5; x < len * 0.5; x += span) {

for (int y = len * -0.5; y < len * 0.5; y += span) {

if (glm::length(glm::vec2(x, y)) > 250) { continue; }

auto noise_value = ofMap(ofNoise(x * 0.008, y * 0.008, ofGetFrameNum() * 0.005), 0, 1, 0, 10);

this->mesh.addVertex(glm::vec3(x, y, 0));

this->mesh.addVertex(glm::vec3(x + span, y, 0));

this->mesh.addVertex(glm::vec3(x + span, y + span, 0));

this->mesh.addVertex(glm::vec3(x, y + span, 0));

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

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

noise_value = noise_value - (int)noise_value;

color = ofColor(ofMap(abs(noise_value - 0.5), 0, 0.5, 39, 239), 39, 39);

for (int i = 0; i < 4; i++) {

this->mesh.addColor(color);

}

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

void ofApp::draw() {

ofTranslate(ofGetWindowSize() * 0.5);

this->mesh.draw();

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20230705

2023年7月4日2023年7月4日

Reverse playback. Draw by openFrameworks

[ Video ]

[ About ]
逆・再生。

[ 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> noise_seed_list;
	vector<glm::vec2> location_list;
	vector<glm::vec2> velocity_list;
	vector<float> size_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> noise_seed_list;

vector<glm::vec2> location_list;

vector<glm::vec2> velocity_list;

vector<float> size_list;

};

#include "ofApp.h"

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

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

	ofBackground(39);
	ofSetCircleResolution(60);

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

		this->noise_seed_list.push_back(glm::vec2(ofRandom(1000), ofRandom(1000)));
	}
}

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

	int index = 0;
	auto radius = 30;
	for (auto& noise_seed : this->noise_seed_list) {

		auto location = glm::vec2(
			ofMap(ofNoise(noise_seed.x, ofGetFrameNum() * 0.0085), 0, 1, -320, 320),
			ofMap(ofNoise(noise_seed.y, ofGetFrameNum() * 0.0085), 0, 1, -320, 320)
		);
		auto next = glm::vec2(
			ofMap(ofNoise(noise_seed.x, (ofGetFrameNum() + 1) * 0.0085), 0, 1, -320, 320),
			ofMap(ofNoise(noise_seed.y, (ofGetFrameNum() + 1) * 0.0085), 0, 1, -320, 320)
		);


		auto distance = location - next;
		distance *= 1;

		for (int i = 0; i < 2; i++) {

			auto future = location + distance * 8;
			auto random_deg = ofRandom(360);
			future += glm::vec2(10 * cos(random_deg * DEG_TO_RAD), 10 * sin(random_deg * DEG_TO_RAD));
			auto future_distance = future - location;

			this->location_list.push_back(location);
			this->velocity_list.push_back(glm::normalize(future_distance) * 7);
			this->size_list.push_back(ofRandom(1, 3));
		}

		index++;
	}

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

		this->location_list[i] += this->velocity_list[i];
		this->velocity_list[i] *= 1.01;
		this->size_list[i] *= 1.04;

		if (glm::distance(glm::vec2(), this->location_list[i]) > 1000) {

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

}

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

	ofTranslate(ofGetWindowSize() * 0.5);

	int index = 0;
	ofSetColor(255);
	for (auto& location : this->location_list) {

		ofPushMatrix();
		ofTranslate(location);

		
		ofDrawCircle(glm::vec2(), this->size_list[index] * 1.3);

		ofPopMatrix();

		index++;
	}

	index = 0;
	ofSetColor(0);
	for (auto& location : this->location_list) {

		ofPushMatrix();
		ofTranslate(location);

		ofDrawCircle(glm::vec2(), this->size_list[index++]);

		ofPopMatrix();
	}
}

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

	ofSetupOpenGL(1280, 720, OF_WINDOW);
	ofRunApp(new ofApp());
}

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#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(60);

ofSetWindowTitle("openFrameworks");

ofBackground(39);

ofSetCircleResolution(60);

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

this->noise_seed_list.push_back(glm::vec2(ofRandom(1000), ofRandom(1000)));

}

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

void ofApp::update() {

int index = 0;

auto radius = 30;

for (auto& noise_seed : this->noise_seed_list) {

auto location = glm::vec2(

ofMap(ofNoise(noise_seed.x, ofGetFrameNum() * 0.0085), 0, 1, -320, 320),

ofMap(ofNoise(noise_seed.y, ofGetFrameNum() * 0.0085), 0, 1, -320, 320)

);

auto next = glm::vec2(

ofMap(ofNoise(noise_seed.x, (ofGetFrameNum() + 1) * 0.0085), 0, 1, -320, 320),

ofMap(ofNoise(noise_seed.y, (ofGetFrameNum() + 1) * 0.0085), 0, 1, -320, 320)

);

auto distance = location - next;

distance *= 1;

for (int i = 0; i < 2; i++) {

auto future = location + distance * 8;

auto random_deg = ofRandom(360);

future += glm::vec2(10 * cos(random_deg * DEG_TO_RAD), 10 * sin(random_deg * DEG_TO_RAD));

auto future_distance = future - location;

this->location_list.push_back(location);

this->velocity_list.push_back(glm::normalize(future_distance) * 7);

this->size_list.push_back(ofRandom(1, 3));

}

index++;

}

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

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

this->velocity_list[i] *= 1.01;

this->size_list[i] *= 1.04;

if (glm::distance(glm::vec2(), this->location_list[i]) > 1000) {

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

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

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

}

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

void ofApp::draw() {

ofTranslate(ofGetWindowSize() * 0.5);

int index = 0;

ofSetColor(255);

for (auto& location : this->location_list) {

ofPushMatrix();

ofTranslate(location);

ofDrawCircle(glm::vec2(), this->size_list[index] * 1.3);

ofPopMatrix();

index++;

}

index = 0;

ofSetColor(0);

for (auto& location : this->location_list) {

ofPushMatrix();

ofTranslate(location);

ofDrawCircle(glm::vec2(), this->size_list[index++]);

ofPopMatrix();

}

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

int main() {

ofSetupOpenGL(1280, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20230704

2023年7月3日

Bubbles. Draw by openFrameworks

[ Video ]

[ About ]
色泡。

[ 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> noise_seed_list;
	vector<glm::vec2> location_list;
	vector<glm::vec2> velocity_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) {};

vector<glm::vec2> noise_seed_list;

vector<glm::vec2> location_list;

vector<glm::vec2> velocity_list;

vector<ofColor> color_list;

};

#include "ofApp.h"

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

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

	ofBackground(239);
	ofEnableBlendMode(ofBlendMode::OF_BLENDMODE_SUBTRACT);
	ofSetCircleResolution(60);
	ofSetLineWidth(2);

	for (int i = 0; i < 1; i++) {

		this->noise_seed_list.push_back(glm::vec2(ofRandom(1000), ofRandom(1000)));
	}
}

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

	int index = 0;
	auto radius = 30;
	ofColor color;
	for (auto& noise_seed : this->noise_seed_list) {

		auto deg = ofGetFrameNum() * 6 + index * 120;
		auto next_deg = deg + 3;

		auto location = glm::vec2(radius * cos(deg * DEG_TO_RAD), radius * sin(deg * DEG_TO_RAD));
		auto next = glm::vec2(radius * cos(next_deg * DEG_TO_RAD), radius * sin(next_deg * DEG_TO_RAD));

		auto distance = location - next;
		distance *= 1;

		for (int i = 0; i < 2; i++) {

			auto future = location + distance * 8;
			auto random_deg = ofRandom(360);
			future += glm::vec2(10 * cos(random_deg * DEG_TO_RAD), 10 * sin(random_deg * DEG_TO_RAD));
			auto future_distance = future - location;

			this->location_list.push_back(location);
			this->velocity_list.push_back(glm::normalize(future_distance) * glm::length(distance));

			//color.setHsb(ofRandom(255), 255, 255, ofRandom(100, 150));
			auto hue = (int)(ofGetFrameNum() * 3 + ofRandom(64)) % 255;
			color.setHsb(hue, 255, 255, ofRandom(30, 50));
			this->color_list.push_back(color);
		}

		index++;
	}

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

		this->location_list[i] += this->velocity_list[i];
		this->velocity_list[i] *= 1.01;

		if (glm::distance(glm::vec2(), this->location_list[i]) > 1000) {

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

}

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

	ofTranslate(ofGetWindowSize() * 0.5);
	ofRotateY(180);

	ofFill();
	int index = 0;
	for (auto& location : this->location_list) {

		ofSetColor(this->color_list[index++], 150);

		ofPushMatrix();
		ofTranslate(location);

		auto size = ofMap(glm::length(location), 30, 360, 3, 38);
		ofDrawCircle(glm::vec2(), size);

		ofPopMatrix();
	}

	ofNoFill();
	index = 0;
	for (auto& location : this->location_list) {

		ofSetColor(this->color_list[index++], 255);

		ofPushMatrix();
		ofTranslate(location);

		auto size = ofMap(glm::length(location), 30, 360, 3, 38);
		ofDrawCircle(glm::vec2(), size);

		ofPopMatrix();
	}
}

//--------------------------------------------------------------
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(239);

ofEnableBlendMode(ofBlendMode::OF_BLENDMODE_SUBTRACT);

ofSetCircleResolution(60);

ofSetLineWidth(2);

for (int i = 0; i < 1; i++) {

this->noise_seed_list.push_back(glm::vec2(ofRandom(1000), ofRandom(1000)));

}

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

void ofApp::update() {

int index = 0;

auto radius = 30;

ofColor color;

for (auto& noise_seed : this->noise_seed_list) {

auto deg = ofGetFrameNum() * 6 + index * 120;

auto next_deg = deg + 3;

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

auto next = glm::vec2(radius * cos(next_deg * DEG_TO_RAD), radius * sin(next_deg * DEG_TO_RAD));

auto distance = location - next;

distance *= 1;

for (int i = 0; i < 2; i++) {

auto future = location + distance * 8;

auto random_deg = ofRandom(360);

future += glm::vec2(10 * cos(random_deg * DEG_TO_RAD), 10 * sin(random_deg * DEG_TO_RAD));

auto future_distance = future - location;

this->location_list.push_back(location);

this->velocity_list.push_back(glm::normalize(future_distance) * glm::length(distance));

//color.setHsb(ofRandom(255), 255, 255, ofRandom(100, 150));

auto hue = (int)(ofGetFrameNum() * 3 + ofRandom(64)) % 255;

color.setHsb(hue, 255, 255, ofRandom(30, 50));

this->color_list.push_back(color);

}

index++;

}

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

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

this->velocity_list[i] *= 1.01;

if (glm::distance(glm::vec2(), this->location_list[i]) > 1000) {

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

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

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

}

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

void ofApp::draw() {

ofTranslate(ofGetWindowSize() * 0.5);

ofRotateY(180);

ofFill();

int index = 0;

for (auto& location : this->location_list) {

ofSetColor(this->color_list[index++], 150);

ofPushMatrix();

ofTranslate(location);

auto size = ofMap(glm::length(location), 30, 360, 3, 38);

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

ofPopMatrix();

}

ofNoFill();

index = 0;

for (auto& location : this->location_list) {

ofSetColor(this->color_list[index++], 255);

ofPushMatrix();

ofTranslate(location);

auto size = ofMap(glm::length(location), 30, 360, 3, 38);

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

ofPopMatrix();

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20230703

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