プログラミング de 落描き – ページ 529 – クリエイティブ・コーディングによる生成物とソース

2021年3月3日2021年3月3日

Noise tori. Draw by openFrameworks

[ Video ]

[ About ]
Noise tori.

[ 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::vec3 make_point(float R, float r, float u, float v);

	ofEasyCam cam;
	ofMesh face, frame;
};

#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::vec3 make_point(float R, float r, float u, float v);

ofEasyCam cam;

ofMesh face, frame;

};

#include "ofApp.h"

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

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

	ofBackground(239);
	ofSetLineWidth(3);
	ofEnableDepthTest();

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

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

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

	float phi_deg_step = 6;
	float theta_deg_step = 6;

	for (float R = 30; R <= 350; R += 80) {

		float r = R * 0.13;

		auto rotation_y = glm::rotate(glm::mat4(), ofMap(ofNoise(R + ofGetFrameNum() * 0.0025), 0, 1, PI * -5, PI * 5), glm::vec3(0, 1, 0));
		auto rotation_x = glm::rotate(glm::mat4(), ofMap(ofNoise(R + ofGetFrameNum() * 0.0025), 0, 1, PI * -5, PI * 5), glm::vec3(1, 0, 0));

		for (float phi_deg = 0; phi_deg < 360; phi_deg += phi_deg_step) {

			for (float theta_deg = 0; theta_deg < 360; theta_deg += theta_deg_step) {

				auto noise_value = ofNoise(glm::vec4(this->make_point(R, r, theta_deg, phi_deg) * 0.005, ofGetFrameNum() * 0.02));
				if (noise_value < 0.5) { continue; }

				auto noise_1 = ofNoise(glm::vec4(this->make_point(R, r, theta_deg - theta_deg_step, phi_deg) * 0.005, ofGetFrameNum() * 0.02));
				auto noise_2 = ofNoise(glm::vec4(this->make_point(R, r, theta_deg, phi_deg + phi_deg_step) * 0.005, ofGetFrameNum() * 0.02));
				auto noise_3 = ofNoise(glm::vec4(this->make_point(R, r, theta_deg, phi_deg - phi_deg_step) * 0.005, ofGetFrameNum() * 0.02));
				auto noise_4 = ofNoise(glm::vec4(this->make_point(R, r, theta_deg + theta_deg_step, phi_deg) * 0.005, ofGetFrameNum() * 0.02));

				auto index = this->face.getNumVertices();
				vector<glm::vec3> vertices;

				vertices.push_back(glm::vec3(this->make_point(R, r, theta_deg - theta_deg_step * 0.5, phi_deg - phi_deg_step * 0.5)));
				vertices.push_back(glm::vec3(this->make_point(R, r, theta_deg + theta_deg_step * 0.5, phi_deg - phi_deg_step * 0.5)));
				vertices.push_back(glm::vec3(this->make_point(R, r, theta_deg - theta_deg_step * 0.5, phi_deg + phi_deg_step * 0.5)));
				vertices.push_back(glm::vec3(this->make_point(R, r, theta_deg + theta_deg_step * 0.5, phi_deg + phi_deg_step * 0.5)));

				for (auto& vertex : vertices) {

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

				this->face.addVertices(vertices);

				this->face.addIndex(index + 0); this->face.addIndex(index + 1); this->face.addIndex(index + 3);
				this->face.addIndex(index + 0); this->face.addIndex(index + 3); this->face.addIndex(index + 2);

				if (noise_1 < 0.5) {

					this->frame.addVertex(vertices[0]);
					this->frame.addVertex(vertices[2]);

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

				if (noise_2 < 0.5) {

					this->frame.addVertex(vertices[2]);
					this->frame.addVertex(vertices[3]);

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

				if (noise_3 < 0.5) {

					this->frame.addVertex(vertices[0]);
					this->frame.addVertex(vertices[1]);

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

				if (noise_4 < 0.5) {

					this->frame.addVertex(vertices[1]);
					this->frame.addVertex(vertices[3]);

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

				}
			}
		}
	}
}

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

	this->cam.begin();

	ofSetColor(255);
	this->frame.draw();

	ofSetColor(39);
	this->face.draw();

	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(3);

ofEnableDepthTest();

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

}

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

void ofApp::update() {

this->face.clear();

this->frame.clear();

float phi_deg_step = 6;

float theta_deg_step = 6;

for (float R = 30; R <= 350; R += 80) {

float r = R * 0.13;

auto rotation_y = glm::rotate(glm::mat4(), ofMap(ofNoise(R + ofGetFrameNum() * 0.0025), 0, 1, PI * -5, PI * 5), glm::vec3(0, 1, 0));

auto rotation_x = glm::rotate(glm::mat4(), ofMap(ofNoise(R + ofGetFrameNum() * 0.0025), 0, 1, PI * -5, PI * 5), glm::vec3(1, 0, 0));

for (float phi_deg = 0; phi_deg < 360; phi_deg += phi_deg_step) {

for (float theta_deg = 0; theta_deg < 360; theta_deg += theta_deg_step) {

auto noise_value = ofNoise(glm::vec4(this->make_point(R, r, theta_deg, phi_deg) * 0.005, ofGetFrameNum() * 0.02));

if (noise_value < 0.5) { continue; }

auto noise_1 = ofNoise(glm::vec4(this->make_point(R, r, theta_deg - theta_deg_step, phi_deg) * 0.005, ofGetFrameNum() * 0.02));

auto noise_2 = ofNoise(glm::vec4(this->make_point(R, r, theta_deg, phi_deg + phi_deg_step) * 0.005, ofGetFrameNum() * 0.02));

auto noise_3 = ofNoise(glm::vec4(this->make_point(R, r, theta_deg, phi_deg - phi_deg_step) * 0.005, ofGetFrameNum() * 0.02));

auto noise_4 = ofNoise(glm::vec4(this->make_point(R, r, theta_deg + theta_deg_step, phi_deg) * 0.005, ofGetFrameNum() * 0.02));

auto index = this->face.getNumVertices();

vector<glm::vec3> vertices;

vertices.push_back(glm::vec3(this->make_point(R, r, theta_deg - theta_deg_step * 0.5, phi_deg - phi_deg_step * 0.5)));

vertices.push_back(glm::vec3(this->make_point(R, r, theta_deg + theta_deg_step * 0.5, phi_deg - phi_deg_step * 0.5)));

vertices.push_back(glm::vec3(this->make_point(R, r, theta_deg - theta_deg_step * 0.5, phi_deg + phi_deg_step * 0.5)));

vertices.push_back(glm::vec3(this->make_point(R, r, theta_deg + theta_deg_step * 0.5, phi_deg + phi_deg_step * 0.5)));

for (auto& vertex : vertices) {

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

}

this->face.addVertices(vertices);

this->face.addIndex(index + 0); this->face.addIndex(index + 1); this->face.addIndex(index + 3);

this->face.addIndex(index + 0); this->face.addIndex(index + 3); this->face.addIndex(index + 2);

if (noise_1 < 0.5) {

this->frame.addVertex(vertices[0]);

this->frame.addVertex(vertices[2]);

this->frame.addIndex(this->frame.getNumVertices() - 1);

this->frame.addIndex(this->frame.getNumVertices() - 2);

}

if (noise_2 < 0.5) {

this->frame.addVertex(vertices[2]);

this->frame.addVertex(vertices[3]);

this->frame.addIndex(this->frame.getNumVertices() - 1);

this->frame.addIndex(this->frame.getNumVertices() - 2);

}

if (noise_3 < 0.5) {

this->frame.addVertex(vertices[0]);

this->frame.addVertex(vertices[1]);

this->frame.addIndex(this->frame.getNumVertices() - 1);

this->frame.addIndex(this->frame.getNumVertices() - 2);

}

if (noise_4 < 0.5) {

this->frame.addVertex(vertices[1]);

this->frame.addVertex(vertices[3]);

this->frame.addIndex(this->frame.getNumVertices() - 1);

this->frame.addIndex(this->frame.getNumVertices() - 2);

}

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

void ofApp::draw() {

this->cam.begin();

ofSetColor(255);

this->frame.draw();

ofSetColor(39);

this->face.draw();

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/Insta20210303

2021年3月2日2021年3月2日

Arrow circle. Draw by openFrameworks

[ Video ]

[ About ]
Arrow circle.

[ 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) {};

	void draw_arrow(glm::vec2 location, glm::vec2 next_location, float size);
};

#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) {};

void draw_arrow(glm::vec2 location, glm::vec2 next_location, float size);

};

#include "ofApp.h"

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

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

	ofBackground(239);
	ofSetColor(39);
}

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

	ofSeedRandom(39);
}

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

	ofTranslate(ofGetWindowSize() * 0.5);

	auto noise_seed = ofRandom(1000);

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

		auto deg_start = ofMap(ofNoise(noise_seed, ofGetFrameNum() * 0.005 + radius * 0.005), 0, 1, -180, 180);
		auto next_deg = ofMap(ofNoise(noise_seed, (ofGetFrameNum() + 1) * 0.005 + radius * 0.005), 0, 1, -180, 180);
		auto deg_gap = next_deg - deg_start;

		for (int deg = deg_start; deg < deg_start + 360; deg += 15) {

			this->draw_arrow(glm::vec2(radius * cos(deg * DEG_TO_RAD), radius * sin(deg * DEG_TO_RAD)), glm::vec2(radius * cos((deg + deg_gap) * DEG_TO_RAD), radius * sin((deg + deg_gap) * DEG_TO_RAD)), ofMap(radius, 100, 300, 13, 35));
		}
	}

}

//--------------------------------------------------------------
void ofApp::draw_arrow(glm::vec2 location, glm::vec2 next_location, float size) {

	auto angle = std::atan2(next_location.y - location.y, next_location.x - location.x);

	ofFill();
	ofSetColor(39);

	ofBeginShape();
	ofVertex(location + glm::vec2(size * cos(angle), size * sin(angle)));
	ofVertex(location + glm::vec2(size * 0.5 * cos(angle + PI * 0.5), size * 0.5 * sin(angle + PI * 0.5)));
	ofVertex(location + glm::vec2(size * 0.5 * cos(angle - PI * 0.5), size * 0.5 * sin(angle - PI * 0.5)));
	ofEndShape(true);

	ofBeginShape();
	ofVertex(location + glm::vec2(size * 0.5 * cos(angle + PI * 0.5), size * 0.5 * sin(angle + PI * 0.5)) * 0.25);
	ofVertex(location + glm::vec2(size * 0.5 * cos(angle + PI * 0.5), size * 0.5 * sin(angle + PI * 0.5)) * 0.25 - glm::vec2(size * cos(angle), size * sin(angle)) * 0.5);
	ofVertex(location + glm::vec2(size * 0.5 * cos(angle - PI * 0.5), size * 0.5 * sin(angle - PI * 0.5)) * 0.25 - glm::vec2(size * cos(angle), size * sin(angle)) * 0.5);
	ofVertex(location + glm::vec2(size * 0.5 * cos(angle - PI * 0.5), size * 0.5 * sin(angle - PI * 0.5)) * 0.25);
	ofEndShape(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);

}

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

void ofApp::update() {

ofSeedRandom(39);

}

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

void ofApp::draw() {

ofTranslate(ofGetWindowSize() * 0.5);

auto noise_seed = ofRandom(1000);

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

auto deg_start = ofMap(ofNoise(noise_seed, ofGetFrameNum() * 0.005 + radius * 0.005), 0, 1, -180, 180);

auto next_deg = ofMap(ofNoise(noise_seed, (ofGetFrameNum() + 1) * 0.005 + radius * 0.005), 0, 1, -180, 180);

auto deg_gap = next_deg - deg_start;

for (int deg = deg_start; deg < deg_start + 360; deg += 15) {

this->draw_arrow(glm::vec2(radius * cos(deg * DEG_TO_RAD), radius * sin(deg * DEG_TO_RAD)), glm::vec2(radius * cos((deg + deg_gap) * DEG_TO_RAD), radius * sin((deg + deg_gap) * DEG_TO_RAD)), ofMap(radius, 100, 300, 13, 35));

}

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

void ofApp::draw_arrow(glm::vec2 location, glm::vec2 next_location, float size) {

auto angle = std::atan2(next_location.y - location.y, next_location.x - location.x);

ofFill();

ofSetColor(39);

ofBeginShape();

ofVertex(location + glm::vec2(size * cos(angle), size * sin(angle)));

ofVertex(location + glm::vec2(size * 0.5 * cos(angle + PI * 0.5), size * 0.5 * sin(angle + PI * 0.5)));

ofVertex(location + glm::vec2(size * 0.5 * cos(angle - PI * 0.5), size * 0.5 * sin(angle - PI * 0.5)));

ofEndShape(true);

ofBeginShape();

ofVertex(location + glm::vec2(size * 0.5 * cos(angle + PI * 0.5), size * 0.5 * sin(angle + PI * 0.5)) * 0.25);

ofVertex(location + glm::vec2(size * 0.5 * cos(angle + PI * 0.5), size * 0.5 * sin(angle + PI * 0.5)) * 0.25 - glm::vec2(size * cos(angle), size * sin(angle)) * 0.5);

ofVertex(location + glm::vec2(size * 0.5 * cos(angle - PI * 0.5), size * 0.5 * sin(angle - PI * 0.5)) * 0.25 - glm::vec2(size * cos(angle), size * sin(angle)) * 0.5);

ofVertex(location + glm::vec2(size * 0.5 * cos(angle - PI * 0.5), size * 0.5 * sin(angle - PI * 0.5)) * 0.25);

ofEndShape(true);

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20210302

2021年3月1日2021年3月1日

Dot font. Draw by openFrameworks

[ Video ]

[ About ]
Dot font.

[ 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;
	vector<glm::vec2> location_list;
	vector<float> value_list;
	int frame_span;
	int word_index;
};

#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;

vector<glm::vec2> location_list;

vector<float> value_list;

int frame_span;

int word_index;

};

#include "ofApp.h"

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

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

	ofBackground(239);
	ofSetColor(39);
	
	this->font.loadFont("fonts/Kazesawa-Bold.ttf", 550, true, true, true);

	int span = 20;
	for (int x = span * 0.5; x <= ofGetWidth() - span * 0.5; x += span) {

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

			this->location_list.push_back(glm::vec2(x, y));
			this->value_list.push_back(0);
		}
	}

	this->word_index = 0;
	this->frame_span = 90;
}

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

	if (ofGetFrameNum() % this->frame_span == 0) {

		vector<string> word_list = { "L", "O", "V", "E", "!" };
		this->word_index = (this->word_index + 1) % word_list.size();
		string word = word_list[this->word_index];

		ofFbo fbo;
		fbo.allocate(ofGetWidth(), ofGetHeight());
		fbo.begin();
		ofTranslate(ofGetWidth() * 0.5, ofGetHeight() * 0.5);
		ofClear(0);
		ofSetColor(0);
		this->font.drawString(word, font.stringWidth(word) * -0.5, font.stringHeight(word) * 0.5);
		fbo.end();
		ofPixels pixels;
		fbo.readToPixels(pixels);

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

			ofColor color = pixels.getColor(this->location_list[i].x, this->location_list[i].y);
			if (color != ofColor(0, 0)) {

				this->value_list[i] = 1;
			}
			else {

				this->value_list[i] = 0;
			}
		}
	}
}

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

	auto frame_param = ofGetFrameNum() % this->frame_span;
	for (int i = 0; i < this->location_list.size(); i++) {

		if (this->value_list[i] == 1) {

			auto noise_value = ofNoise(this->location_list[i] * 0.005);

			if (frame_param < this->frame_span * 0.6)	{

				noise_value += ofMap(frame_param, 0, this->frame_span * 0.3, 0, 1);
				if (noise_value > 1) { noise_value = 1; }
			}
			else {

				noise_value = ofMap(frame_param , this->frame_span * 0.6, this->frame_span, 1, 0);
				if (noise_value < 0) { noise_value = 0; }
			}

			ofDrawCircle(this->location_list[i], 3 + 5 * this->value_list[i] * noise_value);
		}
		else {

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

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

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

#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(60);

ofSetWindowTitle("openframeworks");

ofBackground(239);

ofSetColor(39);

this->font.loadFont("fonts/Kazesawa-Bold.ttf", 550, true, true, true);

int span = 20;

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

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

this->location_list.push_back(glm::vec2(x, y));

this->value_list.push_back(0);

}

this->word_index = 0;

this->frame_span = 90;

}

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

void ofApp::update() {

if (ofGetFrameNum() % this->frame_span == 0) {

vector<string> word_list = { "L", "O", "V", "E", "!" };

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

string word = word_list[this->word_index];

ofFbo fbo;

fbo.allocate(ofGetWidth(), ofGetHeight());

fbo.begin();

ofTranslate(ofGetWidth() * 0.5, ofGetHeight() * 0.5);

ofClear(0);

ofSetColor(0);

this->font.drawString(word, font.stringWidth(word) * -0.5, font.stringHeight(word) * 0.5);

fbo.end();

ofPixels pixels;

fbo.readToPixels(pixels);

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

ofColor color = pixels.getColor(this->location_list[i].x, this->location_list[i].y);

if (color != ofColor(0, 0)) {

this->value_list[i] = 1;

}

else {

this->value_list[i] = 0;

}

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

void ofApp::draw() {

auto frame_param = ofGetFrameNum() % this->frame_span;

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

if (this->value_list[i] == 1) {

auto noise_value = ofNoise(this->location_list[i] * 0.005);

if (frame_param < this->frame_span * 0.6) {

noise_value += ofMap(frame_param, 0, this->frame_span * 0.3, 0, 1);

if (noise_value > 1) { noise_value = 1; }

}

else {

noise_value = ofMap(frame_param , this->frame_span * 0.6, this->frame_span, 1, 0);

if (noise_value < 0) { noise_value = 0; }

}

ofDrawCircle(this->location_list[i], 3 + 5 * this->value_list[i] * noise_value);

}

else {

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

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20210301

2025年7月
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