openframeworks – ページ 278 – プログラミング de 落描き

2021年5月7日2021年5月7日

写輪眼 Generator. Draw by openFrameworks

[ Video ]

[ About ]
写輪眼 Generator.

[ 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(239);
	ofSetLineWidth(3);
	ofSetCircleResolution(30);
	ofEnableDepthTest();
}

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

	ofSeedRandom(39);
}

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

	for (int x = 120; x <= 720 - 120; x += 120) {

		for (int y = 120; y <= 720 - 120; y += 120) {

			ofPushMatrix();
			ofTranslate(x, y);

			ofSetColor(239, 39, 39);
			ofFill();
			ofDrawCircle(glm::vec3(0, 0, -1), 54);

			auto head_size = 9;

			ofMesh mesh;
			vector<glm::vec3> right, left, frame;
			auto noise_seed_deg = ofRandom(1000);
			auto noise_seed_radius = ofRandom(1000);

			glm::vec3 last_location;
			float last_theta, last_radius;

			for (int i = 0; i < 25; i++) {

				auto noise_deg = ofMap(ofNoise(noise_seed_deg, (ofGetFrameNum() + i) * 0.005), 0, 1, -360, 360);
				auto noise_radius = ofMap(ofNoise(noise_seed_radius, (ofGetFrameNum() + i) * 0.01), 0, 1, -50, 50);
				auto next_noise_deg = ofMap(ofNoise(noise_seed_deg, (ofGetFrameNum() + i + 1) * 0.005), 0, 1, -360, 360);
				auto next_noise_radius = ofMap(ofNoise(noise_seed_radius, (ofGetFrameNum() + i + 1) * 0.01), 0, 1, -50, 50);

				auto location = glm::vec3(noise_radius * cos(noise_deg * DEG_TO_RAD), noise_radius * sin(noise_deg * DEG_TO_RAD), 0);
				auto next = glm::vec3(next_noise_radius * cos(next_noise_deg * DEG_TO_RAD), next_noise_radius * sin(next_noise_deg * DEG_TO_RAD), 0);

				auto direction = next - location;
				auto theta = atan2(direction.y, direction.x);

				right.push_back(location + glm::vec3(ofMap(i, 0, 25, 0, head_size) * cos(theta + PI * 0.5), ofMap(i, 0, 25, 0, head_size) * sin(theta + PI * 0.5), 0));
				left.push_back(location + glm::vec3(ofMap(i, 0, 25, 0, head_size) * cos(theta - PI * 0.5), ofMap(i, 0, 25, 0, head_size) * sin(theta - PI * 0.5), 0));

				last_location = location;
				last_theta = theta;
				last_radius = noise_radius;
			}

			for (int i = 0; i < right.size(); i++) {

				mesh.addVertex(left[i]);
				mesh.addVertex(right[i]);
			}

			for (int i = 0; i < mesh.getNumVertices() - 2; i += 2) {

				mesh.addIndex(i + 0); mesh.addIndex(i + 1); mesh.addIndex(i + 3);
				mesh.addIndex(i + 0); mesh.addIndex(i + 2); mesh.addIndex(i + 3);
			}

			auto tmp_head_size = ofMap(mesh.getNumVertices() - 2, 0, mesh.getNumVertices(), 0, head_size);

			mesh.addVertex(last_location);
			int index = mesh.getNumVertices();
			for (auto theta = last_theta - PI * 0.5; theta <= last_theta + PI * 0.5; theta += PI / 20) {

				mesh.addVertex(last_location + glm::vec3(tmp_head_size * cos(theta), tmp_head_size * sin(theta), 0));
				frame.push_back(last_location + glm::vec3(tmp_head_size * cos(theta), tmp_head_size * sin(theta), 0));
			}

			for (int i = index; i < mesh.getNumVertices() - 1; i++) {

				mesh.addIndex(index); mesh.addIndex(i + 0); mesh.addIndex(i + 1);
			}

			int span = ofMap(ofNoise(ofRandom(1000), ofGetFrameNum() * 0.003), 0, 1, 1, 7);
			int deg_span = 360 / span;
			ofSetColor(39);
			for (int deg = 0; deg < 360; deg += 30) {

				ofRotate(deg_span);
				mesh.draw();
			}
			
			ofNoFill();
			ofDrawCircle(glm::vec3(), last_radius);
			ofDrawCircle(glm::vec3(), 55);

			ofPopMatrix();
		}
	}
}

//--------------------------------------------------------------
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);

ofSetCircleResolution(30);

ofEnableDepthTest();

}

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

void ofApp::update() {

ofSeedRandom(39);

}

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

void ofApp::draw() {

for (int x = 120; x <= 720 - 120; x += 120) {

for (int y = 120; y <= 720 - 120; y += 120) {

ofPushMatrix();

ofTranslate(x, y);

ofSetColor(239, 39, 39);

ofFill();

ofDrawCircle(glm::vec3(0, 0, -1), 54);

auto head_size = 9;

ofMesh mesh;

vector<glm::vec3> right, left, frame;

auto noise_seed_deg = ofRandom(1000);

auto noise_seed_radius = ofRandom(1000);

glm::vec3 last_location;

float last_theta, last_radius;

for (int i = 0; i < 25; i++) {

auto noise_deg = ofMap(ofNoise(noise_seed_deg, (ofGetFrameNum() + i) * 0.005), 0, 1, -360, 360);

auto noise_radius = ofMap(ofNoise(noise_seed_radius, (ofGetFrameNum() + i) * 0.01), 0, 1, -50, 50);

auto next_noise_deg = ofMap(ofNoise(noise_seed_deg, (ofGetFrameNum() + i + 1) * 0.005), 0, 1, -360, 360);

auto next_noise_radius = ofMap(ofNoise(noise_seed_radius, (ofGetFrameNum() + i + 1) * 0.01), 0, 1, -50, 50);

auto location = glm::vec3(noise_radius * cos(noise_deg * DEG_TO_RAD), noise_radius * sin(noise_deg * DEG_TO_RAD), 0);

auto next = glm::vec3(next_noise_radius * cos(next_noise_deg * DEG_TO_RAD), next_noise_radius * sin(next_noise_deg * DEG_TO_RAD), 0);

auto direction = next - location;

auto theta = atan2(direction.y, direction.x);

right.push_back(location + glm::vec3(ofMap(i, 0, 25, 0, head_size) * cos(theta + PI * 0.5), ofMap(i, 0, 25, 0, head_size) * sin(theta + PI * 0.5), 0));

left.push_back(location + glm::vec3(ofMap(i, 0, 25, 0, head_size) * cos(theta - PI * 0.5), ofMap(i, 0, 25, 0, head_size) * sin(theta - PI * 0.5), 0));

last_location = location;

last_theta = theta;

last_radius = noise_radius;

}

for (int i = 0; i < right.size(); i++) {

mesh.addVertex(left[i]);

mesh.addVertex(right[i]);

}

for (int i = 0; i < mesh.getNumVertices() - 2; i += 2) {

mesh.addIndex(i + 0); mesh.addIndex(i + 1); mesh.addIndex(i + 3);

mesh.addIndex(i + 0); mesh.addIndex(i + 2); mesh.addIndex(i + 3);

}

auto tmp_head_size = ofMap(mesh.getNumVertices() - 2, 0, mesh.getNumVertices(), 0, head_size);

mesh.addVertex(last_location);

int index = mesh.getNumVertices();

for (auto theta = last_theta - PI * 0.5; theta <= last_theta + PI * 0.5; theta += PI / 20) {

mesh.addVertex(last_location + glm::vec3(tmp_head_size * cos(theta), tmp_head_size * sin(theta), 0));

frame.push_back(last_location + glm::vec3(tmp_head_size * cos(theta), tmp_head_size * sin(theta), 0));

}

for (int i = index; i < mesh.getNumVertices() - 1; i++) {

mesh.addIndex(index); mesh.addIndex(i + 0); mesh.addIndex(i + 1);

}

int span = ofMap(ofNoise(ofRandom(1000), ofGetFrameNum() * 0.003), 0, 1, 1, 7);

int deg_span = 360 / span;

ofSetColor(39);

for (int deg = 0; deg < 360; deg += 30) {

ofRotate(deg_span);

mesh.draw();

}

ofNoFill();

ofDrawCircle(glm::vec3(), last_radius);

ofDrawCircle(glm::vec3(), 55);

ofPopMatrix();

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20210507

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2021年5月6日2021年5月6日

Symmetry. Draw by openFrameworks

[ Video ]

[ About ]
Symmetry.

[ 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(239);
	ofSetColor(39);
	ofNoFill();
	ofSetLineWidth(2);
	ofSetCircleResolution(60);
}

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

	ofSeedRandom(39);
}

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

	for (int x = 120; x <= 720 - 120; x += 120) {

		for (int y = 120; y <= 720 - 120; y += 120) {

			ofPushMatrix();
			ofTranslate(x, y);

			auto head_size = 9;

			ofMesh mesh;
			vector<glm::vec3> right, left, frame;
			auto noise_seed_deg = ofRandom(1000);
			auto noise_seed_radius = ofRandom(1000);

			glm::vec3 last_location;
			float last_theta, last_radius;

			for (int i = 0; i < 25; i++) {

				auto noise_deg = ofMap(ofNoise(noise_seed_deg, (ofGetFrameNum() + i) * 0.005), 0, 1, -360, 360);
				auto noise_radius = ofMap(ofNoise(noise_seed_radius, (ofGetFrameNum() + i) * 0.01), 0, 1, -50, 50);
				auto next_noise_deg = ofMap(ofNoise(noise_seed_deg, (ofGetFrameNum() + i + 1) * 0.005), 0, 1, -360, 360);
				auto next_noise_radius = ofMap(ofNoise(noise_seed_radius, (ofGetFrameNum() + i + 1) * 0.01), 0, 1, -50, 50);

				auto location = glm::vec3(noise_radius * cos(noise_deg * DEG_TO_RAD), noise_radius * sin(noise_deg * DEG_TO_RAD), 0);
				auto next = glm::vec3(next_noise_radius * cos(next_noise_deg * DEG_TO_RAD), next_noise_radius * sin(next_noise_deg * DEG_TO_RAD), 0);

				auto direction = next - location;
				auto theta = atan2(direction.y, direction.x);

				right.push_back(location + glm::vec3(ofMap(i, 0, 25, 0, head_size) * cos(theta + PI * 0.5), ofMap(i, 0, 25, 0, head_size) * sin(theta + PI * 0.5), 0));
				left.push_back(location + glm::vec3(ofMap(i, 0, 25, 0, head_size) * cos(theta - PI * 0.5), ofMap(i, 0, 25, 0, head_size) * sin(theta - PI * 0.5), 0));

				last_location = location;
				last_theta = theta;
				last_radius = noise_radius;
			}

			for (int i = 0; i < right.size(); i++) {

				mesh.addVertex(left[i]);
				mesh.addVertex(right[i]);
			}

			for (int i = 0; i < mesh.getNumVertices() - 2; i += 2) {

				mesh.addIndex(i + 0); mesh.addIndex(i + 1); mesh.addIndex(i + 3);
				mesh.addIndex(i + 0); mesh.addIndex(i + 2); mesh.addIndex(i + 3);
			}

			auto tmp_head_size = ofMap(mesh.getNumVertices() - 2, 0, mesh.getNumVertices(), 0, head_size);

			mesh.addVertex(last_location);
			int index = mesh.getNumVertices();
			for (auto theta = last_theta - PI * 0.5; theta <= last_theta + PI * 0.5; theta += PI / 20) {

				mesh.addVertex(last_location + glm::vec3(tmp_head_size * cos(theta), tmp_head_size * sin(theta), 0));
				frame.push_back(last_location + glm::vec3(tmp_head_size * cos(theta), tmp_head_size * sin(theta), 0));
			}

			for (int i = index; i < mesh.getNumVertices() - 1; i++) {

				mesh.addIndex(index); mesh.addIndex(i + 0); mesh.addIndex(i + 1);
			}

			int span = ofRandom(3, 6);
			int deg_span = 360 / span;
			for (int deg = 0; deg < 360; deg += 30) {

				ofRotate(deg_span);
				mesh.draw();
			}

			ofDrawCircle(glm::vec3(), 55);

			ofPopMatrix();
		}
	}
}

//--------------------------------------------------------------
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);

ofSetColor(39);

ofNoFill();

ofSetLineWidth(2);

ofSetCircleResolution(60);

}

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

void ofApp::update() {

ofSeedRandom(39);

}

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

void ofApp::draw() {

for (int x = 120; x <= 720 - 120; x += 120) {

for (int y = 120; y <= 720 - 120; y += 120) {

ofPushMatrix();

ofTranslate(x, y);

auto head_size = 9;

ofMesh mesh;

vector<glm::vec3> right, left, frame;

auto noise_seed_deg = ofRandom(1000);

auto noise_seed_radius = ofRandom(1000);

glm::vec3 last_location;

float last_theta, last_radius;

for (int i = 0; i < 25; i++) {

auto noise_deg = ofMap(ofNoise(noise_seed_deg, (ofGetFrameNum() + i) * 0.005), 0, 1, -360, 360);

auto noise_radius = ofMap(ofNoise(noise_seed_radius, (ofGetFrameNum() + i) * 0.01), 0, 1, -50, 50);

auto next_noise_deg = ofMap(ofNoise(noise_seed_deg, (ofGetFrameNum() + i + 1) * 0.005), 0, 1, -360, 360);

auto next_noise_radius = ofMap(ofNoise(noise_seed_radius, (ofGetFrameNum() + i + 1) * 0.01), 0, 1, -50, 50);

auto location = glm::vec3(noise_radius * cos(noise_deg * DEG_TO_RAD), noise_radius * sin(noise_deg * DEG_TO_RAD), 0);

auto next = glm::vec3(next_noise_radius * cos(next_noise_deg * DEG_TO_RAD), next_noise_radius * sin(next_noise_deg * DEG_TO_RAD), 0);

auto direction = next - location;

auto theta = atan2(direction.y, direction.x);

right.push_back(location + glm::vec3(ofMap(i, 0, 25, 0, head_size) * cos(theta + PI * 0.5), ofMap(i, 0, 25, 0, head_size) * sin(theta + PI * 0.5), 0));

left.push_back(location + glm::vec3(ofMap(i, 0, 25, 0, head_size) * cos(theta - PI * 0.5), ofMap(i, 0, 25, 0, head_size) * sin(theta - PI * 0.5), 0));

last_location = location;

last_theta = theta;

last_radius = noise_radius;

}

for (int i = 0; i < right.size(); i++) {

mesh.addVertex(left[i]);

mesh.addVertex(right[i]);

}

for (int i = 0; i < mesh.getNumVertices() - 2; i += 2) {

mesh.addIndex(i + 0); mesh.addIndex(i + 1); mesh.addIndex(i + 3);

mesh.addIndex(i + 0); mesh.addIndex(i + 2); mesh.addIndex(i + 3);

}

auto tmp_head_size = ofMap(mesh.getNumVertices() - 2, 0, mesh.getNumVertices(), 0, head_size);

mesh.addVertex(last_location);

int index = mesh.getNumVertices();

for (auto theta = last_theta - PI * 0.5; theta <= last_theta + PI * 0.5; theta += PI / 20) {

mesh.addVertex(last_location + glm::vec3(tmp_head_size * cos(theta), tmp_head_size * sin(theta), 0));

frame.push_back(last_location + glm::vec3(tmp_head_size * cos(theta), tmp_head_size * sin(theta), 0));

}

for (int i = index; i < mesh.getNumVertices() - 1; i++) {

mesh.addIndex(index); mesh.addIndex(i + 0); mesh.addIndex(i + 1);

}

int span = ofRandom(3, 6);

int deg_span = 360 / span;

for (int deg = 0; deg < 360; deg += 30) {

ofRotate(deg_span);

mesh.draw();

}

ofDrawCircle(glm::vec3(), 55);

ofPopMatrix();

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20210506

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2021年5月5日

螺旋 / Rasen. Draw by openFrameworks

[ Video ]

[ About ]
螺旋 / Rasen.

[ 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(60);
	ofSetWindowTitle("openFrameworks");

	ofBackground(0);
	ofEnableBlendMode(ofBlendMode::OF_BLENDMODE_ADD);
	ofEnableDepthTest();

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

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

	ofSeedRandom(39);
	this->mesh.clear();

	ofColor color;
	vector<ofColor> base_color_list;
	vector<int> hex_list = { 0xf44336, 0x9C27B0, 0x3F51B5, 0x03A9F4, 0x009688, 0x8BC34A, 0xFFEB3B, 0xFF9800 };
	for (auto hex : hex_list) {

		color.setHex(hex);
		base_color_list.push_back(color);
	}

	int span = 1;
	for (int i = 0; i < 800; i++) {

		int x = ofMap(ofNoise(ofRandom(1000), ofGetFrameNum() * 0.0005), 0, 1, -300, 300);
		int y = 0;
		y = ofRandom(150, 170);
		y *= ofRandom(1) < 0.5 ? 1 : -1;
		int z = ofRandom(-20, 20);

		auto location = glm::vec3(x, y, z);
		auto rotation_x = glm::rotate(glm::mat4(), (ofGetFrameNum() * span + x * span + 300) * (float)DEG_TO_RAD, glm::vec3(1, 0, 0));
		location = glm::vec3(x, 0, 0) + glm::vec4(location, 0) * rotation_x;

		this->mesh.addVertex(location);

		int color_index = ofRandom(base_color_list.size());
		this->mesh.addColor(base_color_list[color_index]);
	}

	for (int i = 0; i < 1000; i++) {

		int x = (int)ofRandom(12) * 50 - 250 + ofRandom(-5, 5);
		int y = ofMap(ofNoise(ofRandom(1000), ofGetFrameNum() * 0.001), 0, 1, -170, 170);
		int z = ofRandom(-10, 10);

		auto location = glm::vec3(x, y, z);
		auto rotation_x = glm::rotate(glm::mat4(), (ofGetFrameNum() * span + x * span + 300) * (float)DEG_TO_RAD, glm::vec3(1, 0, 0));
		location = glm::vec3(x, 0, 0) + glm::vec4(location, 0) * rotation_x;

		this->mesh.addVertex(location);

		int color_index = ofRandom(base_color_list.size());
		this->mesh.addColor(base_color_list[color_index]);
	}

	for (int i = 0; i < this->mesh.getNumVertices(); i++) {

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

			if (distance(this->mesh.getVertex(i), this->mesh.getVertex(k)) < 15) {

				this->mesh.addIndex(i);
				this->mesh.addIndex(k);
			}
		}
	}
}

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

	this->cam.begin();

	this->mesh.drawWireframe();

	for (int i = 0; i < this->mesh.getNumVertices(); i++) {

		ofSetColor(this->mesh.getColor(i));
		ofDrawSphere(this->mesh.getVertex(i), 2.5);
	}

	this->cam.end();
}

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

ofEnableBlendMode(ofBlendMode::OF_BLENDMODE_ADD);

ofEnableDepthTest();

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

}

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

void ofApp::update() {

ofSeedRandom(39);

this->mesh.clear();

ofColor color;

vector<ofColor> base_color_list;

vector<int> hex_list = { 0xf44336, 0x9C27B0, 0x3F51B5, 0x03A9F4, 0x009688, 0x8BC34A, 0xFFEB3B, 0xFF9800 };

for (auto hex : hex_list) {

color.setHex(hex);

base_color_list.push_back(color);

}

int span = 1;

for (int i = 0; i < 800; i++) {

int x = ofMap(ofNoise(ofRandom(1000), ofGetFrameNum() * 0.0005), 0, 1, -300, 300);

int y = 0;

y = ofRandom(150, 170);

y *= ofRandom(1) < 0.5 ? 1 : -1;

int z = ofRandom(-20, 20);

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

auto rotation_x = glm::rotate(glm::mat4(), (ofGetFrameNum() * span + x * span + 300) * (float)DEG_TO_RAD, glm::vec3(1, 0, 0));

location = glm::vec3(x, 0, 0) + glm::vec4(location, 0) * rotation_x;

this->mesh.addVertex(location);

int color_index = ofRandom(base_color_list.size());

this->mesh.addColor(base_color_list[color_index]);

}

for (int i = 0; i < 1000; i++) {

int x = (int)ofRandom(12) * 50 - 250 + ofRandom(-5, 5);

int y = ofMap(ofNoise(ofRandom(1000), ofGetFrameNum() * 0.001), 0, 1, -170, 170);

int z = ofRandom(-10, 10);

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

auto rotation_x = glm::rotate(glm::mat4(), (ofGetFrameNum() * span + x * span + 300) * (float)DEG_TO_RAD, glm::vec3(1, 0, 0));

location = glm::vec3(x, 0, 0) + glm::vec4(location, 0) * rotation_x;

this->mesh.addVertex(location);

int color_index = ofRandom(base_color_list.size());

this->mesh.addColor(base_color_list[color_index]);

}

for (int i = 0; i < this->mesh.getNumVertices(); i++) {

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

if (distance(this->mesh.getVertex(i), this->mesh.getVertex(k)) < 15) {

this->mesh.addIndex(i);

this->mesh.addIndex(k);

}

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

void ofApp::draw() {

this->cam.begin();

this->mesh.drawWireframe();

for (int i = 0; i < this->mesh.getNumVertices(); i++) {

ofSetColor(this->mesh.getColor(i));

ofDrawSphere(this->mesh.getVertex(i), 2.5);

}

this->cam.end();

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20210505

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