openframeworks – ページ 155 – プログラミング de 落描き

2022年5月26日

Rising sun. Draw by openFrameworks

[ Video ]

[ About ]
太陽！

Sun !

[ 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::vec2 make_point(int len, int param);

	void draw_sun(glm::vec2, vector<ofColor> color_palette);
};

#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::vec2 make_point(int len, int param);

void draw_sun(glm::vec2, vector<ofColor> color_palette);

};

#include "ofApp.h"

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

	ofSetFrameRate(30);
	ofSetWindowTitle("openFrameworks");
	
	ofBackground(255);
	ofSetRectMode(ofRectMode::OF_RECTMODE_CENTER);
	ofSetLineWidth(2);
}

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

}

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

	ofTranslate(ofGetWindowSize() * 0.5);

	// Day 062 Cardinal Red
	vector<ofColor> color_palette;
	color_palette.push_back(ofColor(183, 24, 12));
	color_palette.push_back(ofColor(175, 168, 86));
	color_palette.push_back(ofColor(220, 221, 221));

	for (int x = -240; x <= 240; x += 240) {
	
		this->draw_sun(glm::vec2(x, 0), color_palette);
	}
	 
	// Day 165 French Vanilla
	color_palette.clear();
	color_palette.push_back(ofColor(249, 233, 204));
	color_palette.push_back(ofColor(217, 160, 182));
	color_palette.push_back(ofColor(124, 91, 143));

	for (int x = -240; x <= 240; x += 240) {

		this->draw_sun(glm::vec2(x, -240), color_palette);
	}

	// Day 228 Zenith Blue
	color_palette.clear();
	color_palette.push_back(ofColor(134, 179, 224));
	color_palette.push_back(ofColor(251, 218, 205));
	color_palette.push_back(ofColor(234, 96, 148));

	for (int x = -240; x <= 240; x += 240) {

		this->draw_sun(glm::vec2(x, 240), color_palette);
	}

}

//--------------------------------------------------------------
glm::vec2 ofApp::make_point(int len, int param) {

	param = param % 100;
	if (param < 25) {

		return glm::vec2(ofMap(param, 0, 25, -len * 0.5, len * 0.5), -len * 0.5);
	}
	else if (param < 50) {

		return glm::vec2(len * 0.5, ofMap(param, 25, 50, -len * 0.5, len * 0.5));
	}
	else if (param < 75) {

		return glm::vec2(ofMap(param, 50, 75, len * 0.5, -len * 0.5), len * 0.5);
	}
	else {

		return glm::vec2(-len * 0.5, ofMap(param, 75, 100, len * 0.5, -len * 0.5));
	}
}

//--------------------------------------------------------------
void ofApp::draw_sun(glm::vec2 location, vector<ofColor> color_palette) {

	int small_radius = 35;
	int big_radius = 200;
	int param_span = 2;

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

		int x = i * 235 - 235;

		ofSetColor(color_palette[i % 3]);
		ofFill();
		ofDrawRectangle(glm::vec2(x, location.y), big_radius * 1.05, big_radius * 1.05);

		for (int param_start = ofGetFrameNum() * 0.15; param_start < ofGetFrameNum() * 0.15 + 100; param_start += param_span * 2) {

			vector<glm::vec2> in, out;

			for (int param = param_start; param < param_start + param_span; param++) {

				int deg = param * 3.6 - 135;
				in.push_back(glm::vec2(x + small_radius * cos(deg * DEG_TO_RAD), location.y + small_radius * sin(deg * DEG_TO_RAD)));
				out.push_back(glm::vec2(x, location.y) + make_point(big_radius, param));
			}

			reverse(out.begin(), out.end());

			ofSetColor(color_palette[(i + 1) % 3]);
			ofFill();

			ofBeginShape();
			ofVertices(in);
			ofVertices(out);
			ofEndShape(true);

			ofDrawCircle(glm::vec2(x, location.y), small_radius * 0.8);
		}

		ofSetColor(color_palette[(i + 1) % 3]);
		ofNoFill();
		ofDrawRectangle(glm::vec2(x, location.y), big_radius * 1.05, big_radius * 1.05);
	}
}

//--------------------------------------------------------------
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(255);

ofSetRectMode(ofRectMode::OF_RECTMODE_CENTER);

ofSetLineWidth(2);

}

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

void ofApp::update() {

}

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

void ofApp::draw() {

ofTranslate(ofGetWindowSize() * 0.5);

// Day 062 Cardinal Red

vector<ofColor> color_palette;

color_palette.push_back(ofColor(183, 24, 12));

color_palette.push_back(ofColor(175, 168, 86));

color_palette.push_back(ofColor(220, 221, 221));

for (int x = -240; x <= 240; x += 240) {

this->draw_sun(glm::vec2(x, 0), color_palette);

}

// Day 165 French Vanilla

color_palette.clear();

color_palette.push_back(ofColor(249, 233, 204));

color_palette.push_back(ofColor(217, 160, 182));

color_palette.push_back(ofColor(124, 91, 143));

for (int x = -240; x <= 240; x += 240) {

this->draw_sun(glm::vec2(x, -240), color_palette);

}

// Day 228 Zenith Blue

color_palette.clear();

color_palette.push_back(ofColor(134, 179, 224));

color_palette.push_back(ofColor(251, 218, 205));

color_palette.push_back(ofColor(234, 96, 148));

for (int x = -240; x <= 240; x += 240) {

this->draw_sun(glm::vec2(x, 240), color_palette);

}

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

glm::vec2 ofApp::make_point(int len, int param) {

param = param % 100;

if (param < 25) {

return glm::vec2(ofMap(param, 0, 25, -len * 0.5, len * 0.5), -len * 0.5);

}

else if (param < 50) {

return glm::vec2(len * 0.5, ofMap(param, 25, 50, -len * 0.5, len * 0.5));

}

else if (param < 75) {

return glm::vec2(ofMap(param, 50, 75, len * 0.5, -len * 0.5), len * 0.5);

}

else {

return glm::vec2(-len * 0.5, ofMap(param, 75, 100, len * 0.5, -len * 0.5));

}

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

void ofApp::draw_sun(glm::vec2 location, vector<ofColor> color_palette) {

int small_radius = 35;

int big_radius = 200;

int param_span = 2;

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

int x = i * 235 - 235;

ofSetColor(color_palette[i % 3]);

ofFill();

ofDrawRectangle(glm::vec2(x, location.y), big_radius * 1.05, big_radius * 1.05);

for (int param_start = ofGetFrameNum() * 0.15; param_start < ofGetFrameNum() * 0.15 + 100; param_start += param_span * 2) {

vector<glm::vec2> in, out;

for (int param = param_start; param < param_start + param_span; param++) {

int deg = param * 3.6 - 135;

in.push_back(glm::vec2(x + small_radius * cos(deg * DEG_TO_RAD), location.y + small_radius * sin(deg * DEG_TO_RAD)));

out.push_back(glm::vec2(x, location.y) + make_point(big_radius, param));

}

reverse(out.begin(), out.end());

ofSetColor(color_palette[(i + 1) % 3]);

ofFill();

ofBeginShape();

ofVertices(in);

ofVertices(out);

ofEndShape(true);

ofDrawCircle(glm::vec2(x, location.y), small_radius * 0.8);

}

ofSetColor(color_palette[(i + 1) % 3]);

ofNoFill();

ofDrawRectangle(glm::vec2(x, location.y), big_radius * 1.05, big_radius * 1.05);

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20220526

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2022年5月25日2022年5月25日

Puddle. Draw by openFrameworks

[ Video ]

[ About ]
水たまりちっく。

Puddle.

[ 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, 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) {};

ofEasyCam cam;

ofMesh face, frame;

};

#include "ofApp.h"

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

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

	ofBackground(255);
	ofEnableDepthTest();
	ofSetLineWidth(1.5);

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

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

	ofSeedRandom(39);

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

	int radius = 350;
	float phi_deg_step = 10;
	float theta_deg_step = 3;

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

		for (float theta_deg = 0; theta_deg < 180; theta_deg += theta_deg_step) {

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

			vertices.push_back(glm::vec3(
				radius * sin((theta_deg - theta_deg_step * 0.5) * DEG_TO_RAD) * cos((phi_deg + phi_deg_step * 0.5) * DEG_TO_RAD),
				radius * sin((theta_deg - theta_deg_step * 0.5) * DEG_TO_RAD) * sin((phi_deg + phi_deg_step * 0.5) * DEG_TO_RAD),
				radius * cos((theta_deg - theta_deg_step * 0.5) * DEG_TO_RAD)));
			vertices.push_back(glm::vec3(
				radius * sin((theta_deg - theta_deg_step * 0.5) * DEG_TO_RAD) * cos((phi_deg - phi_deg_step * 0.5) * DEG_TO_RAD),
				radius * sin((theta_deg - theta_deg_step * 0.5) * DEG_TO_RAD) * sin((phi_deg - phi_deg_step * 0.5) * DEG_TO_RAD),
				radius * cos((theta_deg - theta_deg_step * 0.5) * DEG_TO_RAD)));
			vertices.push_back(glm::vec3(
				radius * sin((theta_deg + theta_deg_step * 0.5) * DEG_TO_RAD) * cos((phi_deg + phi_deg_step * 0.5) * DEG_TO_RAD),
				radius * sin((theta_deg + theta_deg_step * 0.5) * DEG_TO_RAD) * sin((phi_deg + phi_deg_step * 0.5) * DEG_TO_RAD),
				radius * cos((theta_deg + theta_deg_step * 0.5) * DEG_TO_RAD)));
			vertices.push_back(glm::vec3(
				radius * sin((theta_deg + theta_deg_step * 0.5) * DEG_TO_RAD) * cos((phi_deg - phi_deg_step * 0.5) * DEG_TO_RAD),
				radius * sin((theta_deg + theta_deg_step * 0.5) * DEG_TO_RAD) * sin((phi_deg - phi_deg_step * 0.5) * DEG_TO_RAD),
				radius * cos((theta_deg + theta_deg_step * 0.5) * DEG_TO_RAD)));

			for (auto& vertex : vertices) {

				if (vertex.z > 0) {

					vertex.z = 0;
					auto noise_value = ofNoise(vertex.x * 0.0035, vertex.y * 0.0035, ofGetFrameNum() * 0.03);
					if (noise_value > 0.35) {
					
						vertex.z = ofMap(noise_value, 0.35, 1, 0, 150);
					}
				}
			}

			this->face.addVertices(vertices);

			for (auto& vertex : vertices) {

				if (vertex.z > 0) {

					vertex.z += 0.1;
				}
			}

			this->frame.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);

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

			for (int i = index; i < this->face.getNumVertices(); i++) {

				this->face.addColor(ofColor(this->face.getVertex(i).z > 0 ? ofMap(this->face.getVertex(i).z, 0, 150, 255, 0) : 255));
				this->frame.addColor(ofColor(255, 60));
			}
		}
	}
}

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

	this->cam.begin();
	ofRotateX(315);
	ofRotateZ(ofGetFrameNum() * 0.6666666);

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

	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(255);

ofEnableDepthTest();

ofSetLineWidth(1.5);

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

}

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

void ofApp::update() {

ofSeedRandom(39);

this->face.clear();

this->frame.clear();

int radius = 350;

float phi_deg_step = 10;

float theta_deg_step = 3;

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

for (float theta_deg = 0; theta_deg < 180; theta_deg += theta_deg_step) {

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

vector<glm::vec3> vertices;

vertices.push_back(glm::vec3(

radius * sin((theta_deg - theta_deg_step * 0.5) * DEG_TO_RAD) * cos((phi_deg + phi_deg_step * 0.5) * DEG_TO_RAD),

radius * sin((theta_deg - theta_deg_step * 0.5) * DEG_TO_RAD) * sin((phi_deg + phi_deg_step * 0.5) * DEG_TO_RAD),

radius * cos((theta_deg - theta_deg_step * 0.5) * DEG_TO_RAD)));

vertices.push_back(glm::vec3(

radius * sin((theta_deg - theta_deg_step * 0.5) * DEG_TO_RAD) * cos((phi_deg - phi_deg_step * 0.5) * DEG_TO_RAD),

radius * sin((theta_deg - theta_deg_step * 0.5) * DEG_TO_RAD) * sin((phi_deg - phi_deg_step * 0.5) * DEG_TO_RAD),

radius * cos((theta_deg - theta_deg_step * 0.5) * DEG_TO_RAD)));

vertices.push_back(glm::vec3(

radius * sin((theta_deg + theta_deg_step * 0.5) * DEG_TO_RAD) * cos((phi_deg + phi_deg_step * 0.5) * DEG_TO_RAD),

radius * sin((theta_deg + theta_deg_step * 0.5) * DEG_TO_RAD) * sin((phi_deg + phi_deg_step * 0.5) * DEG_TO_RAD),

radius * cos((theta_deg + theta_deg_step * 0.5) * DEG_TO_RAD)));

vertices.push_back(glm::vec3(

radius * sin((theta_deg + theta_deg_step * 0.5) * DEG_TO_RAD) * cos((phi_deg - phi_deg_step * 0.5) * DEG_TO_RAD),

radius * sin((theta_deg + theta_deg_step * 0.5) * DEG_TO_RAD) * sin((phi_deg - phi_deg_step * 0.5) * DEG_TO_RAD),

radius * cos((theta_deg + theta_deg_step * 0.5) * DEG_TO_RAD)));

for (auto& vertex : vertices) {

if (vertex.z > 0) {

vertex.z = 0;

auto noise_value = ofNoise(vertex.x * 0.0035, vertex.y * 0.0035, ofGetFrameNum() * 0.03);

if (noise_value > 0.35) {

vertex.z = ofMap(noise_value, 0.35, 1, 0, 150);

}

this->face.addVertices(vertices);

for (auto& vertex : vertices) {

if (vertex.z > 0) {

vertex.z += 0.1;

}

this->frame.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);

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

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

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

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

for (int i = index; i < this->face.getNumVertices(); i++) {

this->face.addColor(ofColor(this->face.getVertex(i).z > 0 ? ofMap(this->face.getVertex(i).z, 0, 150, 255, 0) : 255));

this->frame.addColor(ofColor(255, 60));

}

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

void ofApp::draw() {

this->cam.begin();

ofRotateX(315);

ofRotateZ(ofGetFrameNum() * 0.6666666);

this->face.draw();

this->frame.draw();

this->cam.end();

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20220525

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2022年5月24日

Packing in font. Draw by openFrameworks

[ Video ]

[ About ]
文字の中にボックスを敷き詰める。

Lay the box inside the letter.

[ 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 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;

	vector<tuple<glm::vec3, float>> box_list; // Location, size
	int number_of_box;
};

#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 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;

vector<tuple<glm::vec3, float>> box_list; // Location, size

int number_of_box;

};

#include "ofApp.h"

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

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

	ofBackground(255);
	ofSetLineWidth(1);
	ofEnableDepthTest();

	ofTrueTypeFont font;
	font.loadFont("fonts/Kazesawa-Regular.ttf", 200, true, true, true);

	ofFbo fbo;
	fbo.allocate(ofGetWidth(), ofGetHeight());
	fbo.begin();
	ofClear(0);
	ofSetColor(0);

	string word = "PAC";
	font.drawString(word, ofGetWidth() * 0.5 - font.stringWidth(word) * 0.5, ofGetHeight() * 0.5 + font.stringHeight(word) * 0.5);

	fbo.end();
	ofPixels pixels;
	fbo.readToPixels(pixels);

	this->number_of_box = 1800;
	while (this->box_list.size() < this->number_of_box) {

		auto radius = this->box_list.size() < 110 ? ofRandom(5, 20) : ofRandom(2, 20);
		int x = ofRandom(0, 720);
		int y = ofRandom(0, 720);
		int z = ofRandom(-50, 50);

		ofColor color = pixels.getColor(x, y);
		if (color == ofColor(0, 0)) {

			continue;
		}

		auto tmp_location = glm::vec3(x - ofGetWindowWidth() * 0.5, y - ofGetWindowHeight() * 0.5, z);

		bool flag = true;
		for (int i = 0; i < this->box_list.size(); i++) {

			if (glm::distance(tmp_location, get<0>(this->box_list[i])) < get<1>(this->box_list[i]) + radius) {

				flag = false;
				break;
			}
		}

		if (flag) {

			auto size = (radius * 2) / sqrt(3);
			this->box_list.push_back(make_tuple(tmp_location, size));
		}
	}
}

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

	ofSeedRandom(39);
}

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

	this->cam.begin();
	ofRotateX(180);
	ofRotateY(sin(ofGetFrameNum() * 0.02) * 360);

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

		auto location = get<0>(this->box_list[i]);
		auto size = get<1>(this->box_list[i]);

		ofPushMatrix();
		ofTranslate(location);

		ofRotateZ(ofRandom(360) + ofGetFrameNum() * ofRandom(1, 3));
		ofRotateY(ofRandom(360) + ofGetFrameNum() * ofRandom(1, 3));
		ofRotateX(ofRandom(360) + ofGetFrameNum() * ofRandom(1, 3));

		ofFill();
		ofSetColor(ofRandom(100, 255), ofRandom(100, 255), ofRandom(100, 255));
		ofDrawBox(size);

		ofNoFill();
		ofSetColor(255);
		ofDrawBox(size);

		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(255);

ofSetLineWidth(1);

ofEnableDepthTest();

ofTrueTypeFont font;

font.loadFont("fonts/Kazesawa-Regular.ttf", 200, true, true, true);

ofFbo fbo;

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

fbo.begin();

ofClear(0);

ofSetColor(0);

string word = "PAC";

font.drawString(word, ofGetWidth() * 0.5 - font.stringWidth(word) * 0.5, ofGetHeight() * 0.5 + font.stringHeight(word) * 0.5);

fbo.end();

ofPixels pixels;

fbo.readToPixels(pixels);

this->number_of_box = 1800;

while (this->box_list.size() < this->number_of_box) {

auto radius = this->box_list.size() < 110 ? ofRandom(5, 20) : ofRandom(2, 20);

int x = ofRandom(0, 720);

int y = ofRandom(0, 720);

int z = ofRandom(-50, 50);

ofColor color = pixels.getColor(x, y);

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

continue;

}

auto tmp_location = glm::vec3(x - ofGetWindowWidth() * 0.5, y - ofGetWindowHeight() * 0.5, z);

bool flag = true;

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

if (glm::distance(tmp_location, get<0>(this->box_list[i])) < get<1>(this->box_list[i]) + radius) {

flag = false;

break;

}

if (flag) {

auto size = (radius * 2) / sqrt(3);

this->box_list.push_back(make_tuple(tmp_location, size));

}

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

void ofApp::update() {

ofSeedRandom(39);

}

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

void ofApp::draw() {

this->cam.begin();

ofRotateX(180);

ofRotateY(sin(ofGetFrameNum() * 0.02) * 360);

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

auto location = get<0>(this->box_list[i]);

auto size = get<1>(this->box_list[i]);

ofPushMatrix();

ofTranslate(location);

ofRotateZ(ofRandom(360) + ofGetFrameNum() * ofRandom(1, 3));

ofRotateY(ofRandom(360) + ofGetFrameNum() * ofRandom(1, 3));

ofRotateX(ofRandom(360) + ofGetFrameNum() * ofRandom(1, 3));

ofFill();

ofSetColor(ofRandom(100, 255), ofRandom(100, 255), ofRandom(100, 255));

ofDrawBox(size);

ofNoFill();

ofSetColor(255);

ofDrawBox(size);

ofPopMatrix();

}

this->cam.end();

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20220524

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