プログラミング de 落描き – ページ 160 – 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1月11日

spring water. Draw by openFrameworks

[ Video ]

[ About ]
湧き文字。

[ 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) {};

	ofEasyCam cam;
	ofMesh face;

	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) {};

ofEasyCam cam;

ofMesh face;

ofTrueTypeFont font;

string word;

};

#include "ofApp.h"

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

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

	ofBackground(0);
	ofSetLineWidth(2);
	ofEnableDepthTest();

	this->font.loadFont("fonts/Kazesawa-Bold.ttf", 100, true, true, true);
	this->word = "water";
}
//--------------------------------------------------------------
void ofApp::update() {

	ofSeedRandom(39);

	this->face.clear();

	int radius_start = 10 - ofGetFrameNum() % 10;
	for (int radius = radius_start; radius <= 500; radius += 10) {

		for (int deg = 0; deg < 360; deg += 1) {

			auto z = radius > 200 ? 0 : ofMap(radius, 0, 200, -1 * pow(200 - radius, 1.1), 0);
			
			int next_radius = radius + 10;
			int next_z = next_radius > 200 ? 0 : ofMap(next_radius, 0, 200, -1 * pow(200 - next_radius, 1.1), 0);
			vector<glm::vec3> vertices;
			vertices.push_back(glm::vec3(radius * cos(deg * DEG_TO_RAD), radius * sin(deg * DEG_TO_RAD), z));
			vertices.push_back(glm::vec3(radius * cos((deg + 1) * DEG_TO_RAD), radius * sin((deg + 1) * DEG_TO_RAD), z));
			vertices.push_back(glm::vec3(next_radius * cos((deg + 1) * DEG_TO_RAD), next_radius * sin((deg + 1) * DEG_TO_RAD), next_z));
			vertices.push_back(glm::vec3(next_radius * cos(deg * DEG_TO_RAD), next_radius * sin(deg * DEG_TO_RAD), next_z));

			face.addVertices(vertices);

			face.addIndex(face.getNumVertices() - 1); face.addIndex(face.getNumVertices() - 2); face.addIndex(face.getNumVertices() - 3);
			face.addIndex(face.getNumVertices() - 1); face.addIndex(face.getNumVertices() - 3); face.addIndex(face.getNumVertices() - 4);

		}
	}
}

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

	this->cam.begin();
	ofRotateX(-55);

	ofSetColor(0);
	this->face.draw();

	for (int i = 0; i < 500; i++) {

		auto radius = (int)(ofRandom(500) + ofGetFrameNum() * ofRandom(4, 10)) % 500;
		auto deg = ofRandom(360);
		auto size = ofRandom(10, 30);

		auto rotation_deg = ofRandom(360);
		auto rotation_z = glm::rotate(glm::mat4(), rotation_deg * (float)DEG_TO_RAD, glm::vec3(0, 0, 1));

		ofPushMatrix();
		ofTranslate(radius * cos(deg * DEG_TO_RAD), radius * sin(deg * DEG_TO_RAD), 0);

		ofPath chara_path = this->font.getCharacterAsPoints(this->word[ofRandom(this->word.size())], 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);

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

				glm::vec3 location = vertex / 100 * size;
				location -= glm::vec3(size * 0.5, -size * 0.5, 0);

				location = glm::vec4(location, 0) * rotation_z;

				int len = glm::length(glm::vec2(radius * cos(deg * DEG_TO_RAD), radius * sin(deg * DEG_TO_RAD)) + location);
				location.z = len > 200 ? 0 : ofMap(len, 0, 200, -1 * pow(200 - len, 1.1), 0);

				ofVertex(location + glm::vec3(0, 0, 2));
			}
		}
		ofEndShape(true);

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

			ofNextContour(true);

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

				glm::vec3 location = vertex / 100 * size;
				location -= glm::vec3(size * 0.5, -size * 0.5, 0);

				location = glm::vec4(location, 0) * rotation_z;

				int len = glm::length(glm::vec2(radius * cos(deg * DEG_TO_RAD), radius * sin(deg * DEG_TO_RAD)) + location);
				location.z = len > 200 ? 0 : ofMap(len, 0, 200, -1 * pow(200 - len, 1.1), 0);

				ofVertex(location + glm::vec3(0, 0, 2));
			}
		}
		ofEndShape(true);


		ofPopMatrix();
	}

	this->cam.end();
}

//--------------------------------------------------------------
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(0);

ofSetLineWidth(2);

ofEnableDepthTest();

this->font.loadFont("fonts/Kazesawa-Bold.ttf", 100, true, true, true);

this->word = "water";

}

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

void ofApp::update() {

ofSeedRandom(39);

this->face.clear();

int radius_start = 10 - ofGetFrameNum() % 10;

for (int radius = radius_start; radius <= 500; radius += 10) {

for (int deg = 0; deg < 360; deg += 1) {

auto z = radius > 200 ? 0 : ofMap(radius, 0, 200, -1 * pow(200 - radius, 1.1), 0);

int next_radius = radius + 10;

int next_z = next_radius > 200 ? 0 : ofMap(next_radius, 0, 200, -1 * pow(200 - next_radius, 1.1), 0);

vector<glm::vec3> vertices;

vertices.push_back(glm::vec3(radius * cos(deg * DEG_TO_RAD), radius * sin(deg * DEG_TO_RAD), z));

vertices.push_back(glm::vec3(radius * cos((deg + 1) * DEG_TO_RAD), radius * sin((deg + 1) * DEG_TO_RAD), z));

vertices.push_back(glm::vec3(next_radius * cos((deg + 1) * DEG_TO_RAD), next_radius * sin((deg + 1) * DEG_TO_RAD), next_z));

vertices.push_back(glm::vec3(next_radius * cos(deg * DEG_TO_RAD), next_radius * sin(deg * DEG_TO_RAD), next_z));

face.addVertices(vertices);

face.addIndex(face.getNumVertices() - 1); face.addIndex(face.getNumVertices() - 2); face.addIndex(face.getNumVertices() - 3);

face.addIndex(face.getNumVertices() - 1); face.addIndex(face.getNumVertices() - 3); face.addIndex(face.getNumVertices() - 4);

}

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

void ofApp::draw() {

this->cam.begin();

ofRotateX(-55);

ofSetColor(0);

this->face.draw();

for (int i = 0; i < 500; i++) {

auto radius = (int)(ofRandom(500) + ofGetFrameNum() * ofRandom(4, 10)) % 500;

auto deg = ofRandom(360);

auto size = ofRandom(10, 30);

auto rotation_deg = ofRandom(360);

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

ofPushMatrix();

ofTranslate(radius * cos(deg * DEG_TO_RAD), radius * sin(deg * DEG_TO_RAD), 0);

ofPath chara_path = this->font.getCharacterAsPoints(this->word[ofRandom(this->word.size())], 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);

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

for (auto& vertex : vertices) {

glm::vec3 location = vertex / 100 * size;

location -= glm::vec3(size * 0.5, -size * 0.5, 0);

location = glm::vec4(location, 0) * rotation_z;

int len = glm::length(glm::vec2(radius * cos(deg * DEG_TO_RAD), radius * sin(deg * DEG_TO_RAD)) + location);

location.z = len > 200 ? 0 : ofMap(len, 0, 200, -1 * pow(200 - len, 1.1), 0);

ofVertex(location + glm::vec3(0, 0, 2));

}

ofEndShape(true);

ofNoFill();

ofSetColor(255);

ofBeginShape();

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

ofNextContour(true);

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

for (auto& vertex : vertices) {

glm::vec3 location = vertex / 100 * size;

location -= glm::vec3(size * 0.5, -size * 0.5, 0);

location = glm::vec4(location, 0) * rotation_z;

int len = glm::length(glm::vec2(radius * cos(deg * DEG_TO_RAD), radius * sin(deg * DEG_TO_RAD)) + location);

location.z = len > 200 ? 0 : ofMap(len, 0, 200, -1 * pow(200 - len, 1.1), 0);

ofVertex(location + glm::vec3(0, 0, 2));

}

ofEndShape(true);

ofPopMatrix();

}

this->cam.end();

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20230111

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2023年1月10日

reversal. draw by openFrameworks

[ Video ]

[ About ]
昨日までのやつを反転して遊ぶ。

[ 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) {};

	ofEasyCam cam;
	ofMesh line;

	vector<float> radius_list;
	vector<float> deg_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) {};

ofEasyCam cam;

ofMesh line;

vector<float> radius_list;

vector<float> deg_list;

};

#include "ofApp.h"

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

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

	ofBackground(255);
	ofSetLineWidth(2);
	
	ofEnableDepthTest();

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

	for (int i = 0; i < 1500; i++) {

		this->radius_list.push_back(ofRandom(500));
		this->deg_list.push_back(ofRandom(360));
	}
}
//--------------------------------------------------------------
void ofApp::update() {

	ofSeedRandom(39);

	int threshold_radius = 300;
	int max_radius = 500;
	this->line.clear();

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

		int speed = 5;
		int radius_start = ((int)(this->radius_list[i] + speed) % max_radius);
		int radius = max_radius - radius_start;
		float deg_start = this->deg_list[i] + (radius > threshold_radius ? 1 : ofMap(radius, 0, threshold_radius, pow(speed, ofMap(radius, 0, threshold_radius, 2, 1)), 1));
		float deg = deg_start;
		int color_value = ofRandom(0, 192);

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

			radius = ((int)(this->radius_list[i] + speed * k) % max_radius);
			radius = max_radius - radius;

			deg += (radius > threshold_radius ? 1 : ofMap(radius, 1, threshold_radius, pow(speed, ofMap(radius, 0, threshold_radius, 2, 1)), 1));

			auto z = radius > threshold_radius ? 0 : ofMap(radius, 0, threshold_radius, -1 * pow(threshold_radius - radius, 1.01), 0);
			auto vertex = glm::vec3(radius * cos(deg * DEG_TO_RAD), radius * sin(deg * DEG_TO_RAD), z + 2);
			this->line.addVertex(vertex);
			this->line.addColor(ofColor(color_value));

			if (k > 0 && radius < max_radius - 10) {

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

		}

		this->radius_list[i] = radius_start;
		this->deg_list[i] = deg_start;
	}
}

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

	this->cam.begin();
	ofRotateX(100);

	ofSetColor(0);
	//this->face.draw();
	ofSetColor(255);
	this->line.drawWireframe();

	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);

ofSetLineWidth(2);

ofEnableDepthTest();

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

for (int i = 0; i < 1500; i++) {

this->radius_list.push_back(ofRandom(500));

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

}

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

void ofApp::update() {

ofSeedRandom(39);

int threshold_radius = 300;

int max_radius = 500;

this->line.clear();

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

int speed = 5;

int radius_start = ((int)(this->radius_list[i] + speed) % max_radius);

int radius = max_radius - radius_start;

float deg_start = this->deg_list[i] + (radius > threshold_radius ? 1 : ofMap(radius, 0, threshold_radius, pow(speed, ofMap(radius, 0, threshold_radius, 2, 1)), 1));

float deg = deg_start;

int color_value = ofRandom(0, 192);

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

radius = ((int)(this->radius_list[i] + speed * k) % max_radius);

radius = max_radius - radius;

deg += (radius > threshold_radius ? 1 : ofMap(radius, 1, threshold_radius, pow(speed, ofMap(radius, 0, threshold_radius, 2, 1)), 1));

auto z = radius > threshold_radius ? 0 : ofMap(radius, 0, threshold_radius, -1 * pow(threshold_radius - radius, 1.01), 0);

auto vertex = glm::vec3(radius * cos(deg * DEG_TO_RAD), radius * sin(deg * DEG_TO_RAD), z + 2);

this->line.addVertex(vertex);

this->line.addColor(ofColor(color_value));

if (k > 0 && radius < max_radius - 10) {

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

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

}

this->radius_list[i] = radius_start;

this->deg_list[i] = deg_start;

}

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

void ofApp::draw() {

this->cam.begin();

ofRotateX(100);

ofSetColor(0);

//this->face.draw();

ofSetColor(255);

this->line.drawWireframe();

this->cam.end();

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20230110

[ほしいものリスト]
Amazon

[ Sponsor Link ]

2023年1月9日

whirlpool. draw by openFrameworks

[ Video ]

[ About ]
渦。

[ 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) {};

	ofEasyCam cam;
	ofMesh face, line;

	vector<float> radius_list;
	vector<float> deg_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) {};

ofEasyCam cam;

ofMesh face, line;

vector<float> radius_list;

vector<float> deg_list;

};

#include "ofApp.h"

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

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

	ofBackground(0);
	ofSetLineWidth(2);
	
	ofEnableDepthTest();

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

	for (int i = 0; i < 2000; i++) {

		this->radius_list.push_back(ofRandom(500));
		this->deg_list.push_back(ofRandom(360));
	}
}
//--------------------------------------------------------------
void ofApp::update() {

	ofSeedRandom(39);

	this->face.clear();
	int threshold_radius = 300;

	for (int radius = 0; radius <= 500; radius += 10) {

		int start_index = this->line.getNumVertices();
		int index = start_index;
		int deg_start = radius;
		for (int deg = deg_start; deg < deg_start + 360; deg += 1) {

			auto z = radius > threshold_radius ? 0 : ofMap(radius, 0, threshold_radius, -1 * pow(threshold_radius - radius, 1.1), 0);
			int next_radius = radius + 10;
			int next_z = next_radius > threshold_radius ? 0 : ofMap(next_radius, 0, threshold_radius, -1 * pow(threshold_radius - next_radius, 1.1), 0);

			vector<glm::vec3> vertices;
			vertices.push_back(glm::vec3(radius * cos(deg * DEG_TO_RAD), radius * sin(deg * DEG_TO_RAD), z));
			vertices.push_back(glm::vec3(radius * cos((deg + 1) * DEG_TO_RAD), radius * sin((deg + 1) * DEG_TO_RAD), z));
			vertices.push_back(glm::vec3(next_radius * cos((deg + 1) * DEG_TO_RAD), next_radius * sin((deg + 1) * DEG_TO_RAD), next_z));
			vertices.push_back(glm::vec3(next_radius * cos(deg * DEG_TO_RAD), next_radius * sin(deg * DEG_TO_RAD), next_z));

			face.addVertices(vertices);

			face.addIndex(face.getNumVertices() - 1); face.addIndex(face.getNumVertices() - 2); face.addIndex(face.getNumVertices() - 3);
			face.addIndex(face.getNumVertices() - 1); face.addIndex(face.getNumVertices() - 3); face.addIndex(face.getNumVertices() - 4);
		}
	}

	this->line.clear();

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

		int speed = 5;
		int radius_start = ((int)(this->radius_list[i] + speed) % 500);
		int radius = 500 - radius_start;
		float deg_start = this->deg_list[i] + (radius > threshold_radius ? 1 : ofMap(radius, 0, threshold_radius, pow(speed, ofMap(radius, 0, threshold_radius, 2, 1)), 1));
		float deg = deg_start;
		int color_value = ofRandom(64, 255);

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

			radius = ((int)(this->radius_list[i] + speed * k) % 500);
			radius = 500 - radius;

			deg += (radius > threshold_radius ? 1 : ofMap(radius, 1, threshold_radius, pow(speed, ofMap(radius, 0, threshold_radius, 2, 1)), 1));

			auto z = radius > threshold_radius ? 0 : ofMap(radius, 0, threshold_radius, -1 * pow(threshold_radius - radius, 1.1), 0);
			auto vertex = glm::vec3(radius * cos(deg * DEG_TO_RAD), radius * sin(deg * DEG_TO_RAD), z + 2);
			this->line.addVertex(vertex);
			this->line.addColor(ofColor(color_value));

			if (k > 0) {

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

		}

		this->radius_list[i] = radius_start;
		this->deg_list[i] = deg_start;
	}
}

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

	this->cam.begin();
	ofRotateX(-35);

	ofSetColor(0);
	this->face.draw();
	ofSetColor(255);
	this->line.drawWireframe();

	this->cam.end();

}

//--------------------------------------------------------------
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(0);

ofSetLineWidth(2);

ofEnableDepthTest();

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

for (int i = 0; i < 2000; i++) {

this->radius_list.push_back(ofRandom(500));

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

}

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

void ofApp::update() {

ofSeedRandom(39);

this->face.clear();

int threshold_radius = 300;

for (int radius = 0; radius <= 500; radius += 10) {

int start_index = this->line.getNumVertices();

int index = start_index;

int deg_start = radius;

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

auto z = radius > threshold_radius ? 0 : ofMap(radius, 0, threshold_radius, -1 * pow(threshold_radius - radius, 1.1), 0);

int next_radius = radius + 10;

int next_z = next_radius > threshold_radius ? 0 : ofMap(next_radius, 0, threshold_radius, -1 * pow(threshold_radius - next_radius, 1.1), 0);

vector<glm::vec3> vertices;

vertices.push_back(glm::vec3(radius * cos(deg * DEG_TO_RAD), radius * sin(deg * DEG_TO_RAD), z));

vertices.push_back(glm::vec3(radius * cos((deg + 1) * DEG_TO_RAD), radius * sin((deg + 1) * DEG_TO_RAD), z));

vertices.push_back(glm::vec3(next_radius * cos((deg + 1) * DEG_TO_RAD), next_radius * sin((deg + 1) * DEG_TO_RAD), next_z));

vertices.push_back(glm::vec3(next_radius * cos(deg * DEG_TO_RAD), next_radius * sin(deg * DEG_TO_RAD), next_z));

face.addVertices(vertices);

face.addIndex(face.getNumVertices() - 1); face.addIndex(face.getNumVertices() - 2); face.addIndex(face.getNumVertices() - 3);

face.addIndex(face.getNumVertices() - 1); face.addIndex(face.getNumVertices() - 3); face.addIndex(face.getNumVertices() - 4);

}

this->line.clear();

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

int speed = 5;

int radius_start = ((int)(this->radius_list[i] + speed) % 500);

int radius = 500 - radius_start;

float deg_start = this->deg_list[i] + (radius > threshold_radius ? 1 : ofMap(radius, 0, threshold_radius, pow(speed, ofMap(radius, 0, threshold_radius, 2, 1)), 1));

float deg = deg_start;

int color_value = ofRandom(64, 255);

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

radius = ((int)(this->radius_list[i] + speed * k) % 500);

radius = 500 - radius;

deg += (radius > threshold_radius ? 1 : ofMap(radius, 1, threshold_radius, pow(speed, ofMap(radius, 0, threshold_radius, 2, 1)), 1));

auto z = radius > threshold_radius ? 0 : ofMap(radius, 0, threshold_radius, -1 * pow(threshold_radius - radius, 1.1), 0);

auto vertex = glm::vec3(radius * cos(deg * DEG_TO_RAD), radius * sin(deg * DEG_TO_RAD), z + 2);

this->line.addVertex(vertex);

this->line.addColor(ofColor(color_value));

if (k > 0) {

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

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

}

this->radius_list[i] = radius_start;

this->deg_list[i] = deg_start;

}

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

void ofApp::draw() {

this->cam.begin();

ofRotateX(-35);

ofSetColor(0);

this->face.draw();

ofSetColor(255);

this->line.drawWireframe();

this->cam.end();

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20230109

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