programming – ページ 364 – プログラミング de 落描き

2020年8月14日2020年8月14日

Drop a drop. Draw by openFrameworks

[ Video ]

[ About ]
Drop a drop.

[ Source ]

#pragma once
#include "ofMain.h"
#include "ofxBox2d.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) {}

	ofxBox2d box2d;
	float radius;
	vector<shared_ptr<ofxBox2dCircle>> circle_list;
	vector<vector<glm::vec2>> log_list;
	vector<float> life_list;
};

#pragma once

#include "ofMain.h"

#include "ofxBox2d.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) {}

ofxBox2d box2d;

float radius;

vector<shared_ptr<ofxBox2dCircle>> circle_list;

vector<vector<glm::vec2>> log_list;

vector<float> life_list;

};

#include "ofApp.h"

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

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

	ofBackground(239);
	ofSetColor(39);

	this->box2d.init();
	this->box2d.setGravity(0, 50);
	this->box2d.createBounds();
	this->box2d.setFPS(60);
	this->box2d.registerGrabbing();

	this->radius = 8;
}

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

	if (ofGetFrameNum() % 8 == 0) {

		auto circle = make_shared<ofxBox2dCircle>();
		circle->setPhysics(0.5, 0.83, 0.1);
		circle->setup(this->box2d.getWorld(), ofRandom(10, ofGetWidth() - 10), 10, this->radius);
		this->circle_list.push_back(circle);

		vector<glm::vec2> log;
		this->log_list.push_back(log);
		this->life_list.push_back(255);
	}


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

		for (int j = i + 1; j < this->circle_list.size(); j++) {

			float distance = this->circle_list[i]->getPosition().distance(this->circle_list[j]->getPosition());
			if (distance < this->radius * 4) {

				this->circle_list[i]->addForce(this->circle_list[i]->getPosition() - this->circle_list[j]->getPosition(), ofMap(distance, this->radius, this->radius * 4, 5, 0.02));
				this->circle_list[j]->addForce(this->circle_list[j]->getPosition() - this->circle_list[i]->getPosition(), ofMap(distance, this->radius, this->radius * 4, 5, 0.02));
			}
		}
	}

	this->box2d.update();

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

		this->log_list[i].push_back(glm::vec2(this->circle_list[i]->getPosition().x, this->circle_list[i]->getPosition().y));
		while (this->log_list[i].size() > 15) {

			this->log_list[i].erase(this->log_list[i].begin());
		}

		this->life_list[i] -= 1;
		if (this->life_list[i] < 0) {

			this->circle_list.erase(this->circle_list.begin() + i);
			this->log_list.erase(this->log_list.begin() + i);
			this->life_list.erase(this->life_list.begin() + i);
		}
	}
}

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

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

		if (this->log_list[i].size() < 2) continue;

		ofMesh mesh;
		vector<glm::vec3> right, left, frame;
		glm::vec3 last_location;
		float last_theta;

		for (int k = 0; k < this->log_list[i].size() - 1; k++) {

			auto location = glm::vec3(this->log_list[i][k], 0);
			auto next = glm::vec3(this->log_list[i][k + 1], 0);

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

			right.push_back(location + glm::vec3(ofMap(k, 0, this->log_list[i].size(), 0.1, 8) * cos(theta + PI * 0.5), ofMap(k, 0, this->log_list[i].size(), 0.1, 8) * sin(theta + PI * 0.5), 0));
			left.push_back(location + glm::vec3(ofMap(k, 0, this->log_list[i].size(), 0.1, 8) * cos(theta - PI * 0.5), ofMap(k, 0, this->log_list[i].size(), 0.1, 8) * sin(theta - PI * 0.5), 0));

			last_location = location;
			last_theta = theta;
		}

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

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

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

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

		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(8 * cos(theta), 8 * sin(theta), 0));
			frame.push_back(last_location + glm::vec3(8 * cos(theta), 8 * sin(theta), 0));
		}

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

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

		this->life_list[i] > 128 ? ofSetColor(39) : ofSetColor(39, ofMap(this->life_list[i], 0, 128, 0, 255));
		mesh.draw();
	}
}

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

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

100

101

102

103

104

105

106

107

108

109

110

111

112

113

114

115

116

117

118

119

120

121

122

123

124

125

126

127

128

129

130

131

132

#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(60);

ofSetWindowTitle("openFrameworks");

ofBackground(239);

ofSetColor(39);

this->box2d.init();

this->box2d.setGravity(0, 50);

this->box2d.createBounds();

this->box2d.setFPS(60);

this->box2d.registerGrabbing();

this->radius = 8;

}

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

void ofApp::update() {

if (ofGetFrameNum() % 8 == 0) {

auto circle = make_shared<ofxBox2dCircle>();

circle->setPhysics(0.5, 0.83, 0.1);

circle->setup(this->box2d.getWorld(), ofRandom(10, ofGetWidth() - 10), 10, this->radius);

this->circle_list.push_back(circle);

vector<glm::vec2> log;

this->log_list.push_back(log);

this->life_list.push_back(255);

}

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

for (int j = i + 1; j < this->circle_list.size(); j++) {

float distance = this->circle_list[i]->getPosition().distance(this->circle_list[j]->getPosition());

if (distance < this->radius * 4) {

this->circle_list[i]->addForce(this->circle_list[i]->getPosition() - this->circle_list[j]->getPosition(), ofMap(distance, this->radius, this->radius * 4, 5, 0.02));

this->circle_list[j]->addForce(this->circle_list[j]->getPosition() - this->circle_list[i]->getPosition(), ofMap(distance, this->radius, this->radius * 4, 5, 0.02));

}

this->box2d.update();

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

this->log_list[i].push_back(glm::vec2(this->circle_list[i]->getPosition().x, this->circle_list[i]->getPosition().y));

while (this->log_list[i].size() > 15) {

this->log_list[i].erase(this->log_list[i].begin());

}

this->life_list[i] -= 1;

if (this->life_list[i] < 0) {

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

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

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

}

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

void ofApp::draw() {

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

if (this->log_list[i].size() < 2) continue;

ofMesh mesh;

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

glm::vec3 last_location;

float last_theta;

for (int k = 0; k < this->log_list[i].size() - 1; k++) {

auto location = glm::vec3(this->log_list[i][k], 0);

auto next = glm::vec3(this->log_list[i][k + 1], 0);

auto direction = next - location;

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

right.push_back(location + glm::vec3(ofMap(k, 0, this->log_list[i].size(), 0.1, 8) * cos(theta + PI * 0.5), ofMap(k, 0, this->log_list[i].size(), 0.1, 8) * sin(theta + PI * 0.5), 0));

left.push_back(location + glm::vec3(ofMap(k, 0, this->log_list[i].size(), 0.1, 8) * cos(theta - PI * 0.5), ofMap(k, 0, this->log_list[i].size(), 0.1, 8) * sin(theta - PI * 0.5), 0));

last_location = location;

last_theta = theta;

}

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

mesh.addVertex(left[k]);

mesh.addVertex(right[k]);

}

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

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

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

}

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(8 * cos(theta), 8 * sin(theta), 0));

frame.push_back(last_location + glm::vec3(8 * cos(theta), 8 * sin(theta), 0));

}

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

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

}

this->life_list[i] > 128 ? ofSetColor(39) : ofSetColor(39, ofMap(this->life_list[i], 0, 128, 0, 255));

mesh.draw();

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20200814/

2020年8月13日2020年8月13日

Polygon generater. Draw by openFrameworks

[ Video ]

[ About ]
Polygon generater.

[ Source ]

#pragma once
#include "ofMain.h"
#include "ofxBox2d.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) {}

	void sort(vector<glm::vec2>& vertices);

	ofxBox2d box2d;
	
	vector<ofColor> color_list;

	vector<glm::vec2> walker_list;
	vector<glm::vec2> walker_noise_seed_list;

	vector<shared_ptr<ofxBox2dPolygon>> polygon_list;
	vector<float> polygon_lile_list;
	vector<ofColor> polygon_color_list;
};

#pragma once

#include "ofMain.h"

#include "ofxBox2d.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) {}

void sort(vector<glm::vec2>& vertices);

ofxBox2d box2d;

vector<ofColor> color_list;

vector<glm::vec2> walker_list;

vector<glm::vec2> walker_noise_seed_list;

vector<shared_ptr<ofxBox2dPolygon>> polygon_list;

vector<float> polygon_lile_list;

vector<ofColor> polygon_color_list;

};

#include "ofApp.h"

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

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

	ofBackground(239);
	ofSetLineWidth(2);

	this->box2d.init();
	this->box2d.setGravity(0, 50);
	this->box2d.createBounds();
	this->box2d.setFPS(60);
	this->box2d.registerGrabbing();

	ofColor color;
	vector<int> hex_list = { 0xef476f, 0xffd166, 0x06d6a0, 0x118ab2, 0x073b4c };
	for (auto hex : hex_list) {

		color.setHex(hex);
		this->color_list.push_back(color);
	}

	for (int i = 0; i < 15; i++) {

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

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

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

		this->walker_list[i] = glm::vec2(
			ofMap(ofNoise(this->walker_noise_seed_list[i].x, ofGetFrameNum() * 0.005), 0, 1, 0, ofGetWidth()),
			ofMap(ofNoise(this->walker_noise_seed_list[i].y, ofGetFrameNum() * 0.005), 0, 1, 0, ofGetHeight() * 0.25)
		);
	}

	if (ofGetFrameNum() % 3 == 0) {

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

			vector<glm::vec2> vertices;
			for (int k = i + 1; k < this->walker_list.size(); k++) {

				if (glm::distance(this->walker_list[i], this->walker_list[k]) < 50) {

					vertices.push_back(this->walker_list[k] - this->walker_list[i]);
				}
			}

			if (vertices.size() >= 2) {

				this->sort(vertices);
				for (int m = 0; m < vertices.size() - 1; m++) {

					auto polygon = make_shared<ofxBox2dPolygon>();

					polygon->addVertex(this->walker_list[i].x, this->walker_list[i].y);
					polygon->addVertex(this->walker_list[i].x + vertices[m].x, this->walker_list[i].y + vertices[m].y);
					polygon->addVertex(this->walker_list[i].x + vertices[m + 1].x, this->walker_list[i].y + vertices[m + 1].y);

					polygon->setPhysics(1.0, 0.7, 0.3);
					polygon->create(box2d.getWorld());

					this->polygon_list.push_back(polygon);
					this->polygon_lile_list.push_back(255);
					this->polygon_color_list.push_back(this->color_list[(int)ofRandom(this->color_list.size())]);
				}
			}
		}
	}

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

		this->polygon_lile_list[i] -= 1;

		if (this->polygon_lile_list[i] < 0) {

			this->polygon_list.erase(this->polygon_list.begin() + i);
			this->polygon_lile_list.erase(this->polygon_lile_list.begin() + i);
			this->polygon_color_list.erase(this->polygon_color_list.begin() + i);
		}
	}

	this->box2d.update();
}

//--------------------------------------------------------------
void ofApp::draw() {
	
	ofSetColor(39);
	for (int i = 0; i < this->walker_list.size(); i++) {

		ofDrawCircle(this->walker_list[i], 4);

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

			if (glm::distance(this->walker_list[i], this->walker_list[k]) < 50) {

				ofDrawLine(this->walker_list[i], this->walker_list[k]);
			}
		}
	}

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

		if (this->polygon_lile_list[i] > 128) {

			ofSetColor(this->polygon_color_list[i]);
		}
		else {

			ofSetColor(this->polygon_color_list[i], ofMap(this->polygon_lile_list[i], 128, 0, 255, 0));
		}
		this->polygon_list[i]->draw();
	}
}

//--------------------------------------------------------------
void ofApp::sort(vector<glm::vec2>& vertices) {

	glm::vec2 tmp;
	for (int i = 0; i < vertices.size(); i++) {

		for (int k = i + 1; k < vertices.size(); k++) {

			if (vertices[i].x < vertices[k].x) {

				tmp = vertices[i];
				vertices[i] = vertices[k];
				vertices[k] = tmp;
			}
		}
	}
}

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

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

100

101

102

103

104

105

106

107

108

109

110

111

112

113

114

115

116

117

118

119

120

121

122

123

124

125

126

127

128

129

130

131

132

133

134

135

136

137

138

139

140

141

142

143

144

145

146

147

148

#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(60);

ofSetWindowTitle("openFrameworks");

ofBackground(239);

ofSetLineWidth(2);

this->box2d.init();

this->box2d.setGravity(0, 50);

this->box2d.createBounds();

this->box2d.setFPS(60);

this->box2d.registerGrabbing();

ofColor color;

vector<int> hex_list = { 0xef476f, 0xffd166, 0x06d6a0, 0x118ab2, 0x073b4c };

for (auto hex : hex_list) {

color.setHex(hex);

this->color_list.push_back(color);

}

for (int i = 0; i < 15; i++) {

this->walker_list.push_back(glm::vec2());

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

}

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

void ofApp::update() {

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

this->walker_list[i] = glm::vec2(

ofMap(ofNoise(this->walker_noise_seed_list[i].x, ofGetFrameNum() * 0.005), 0, 1, 0, ofGetWidth()),

ofMap(ofNoise(this->walker_noise_seed_list[i].y, ofGetFrameNum() * 0.005), 0, 1, 0, ofGetHeight() * 0.25)

);

}

if (ofGetFrameNum() % 3 == 0) {

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

vector<glm::vec2> vertices;

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

if (glm::distance(this->walker_list[i], this->walker_list[k]) < 50) {

vertices.push_back(this->walker_list[k] - this->walker_list[i]);

}

if (vertices.size() >= 2) {

this->sort(vertices);

for (int m = 0; m < vertices.size() - 1; m++) {

auto polygon = make_shared<ofxBox2dPolygon>();

polygon->addVertex(this->walker_list[i].x, this->walker_list[i].y);

polygon->addVertex(this->walker_list[i].x + vertices[m].x, this->walker_list[i].y + vertices[m].y);

polygon->addVertex(this->walker_list[i].x + vertices[m + 1].x, this->walker_list[i].y + vertices[m + 1].y);

polygon->setPhysics(1.0, 0.7, 0.3);

polygon->create(box2d.getWorld());

this->polygon_list.push_back(polygon);

this->polygon_lile_list.push_back(255);

this->polygon_color_list.push_back(this->color_list[(int)ofRandom(this->color_list.size())]);

}

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

this->polygon_lile_list[i] -= 1;

if (this->polygon_lile_list[i] < 0) {

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

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

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

}

this->box2d.update();

}

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

void ofApp::draw() {

ofSetColor(39);

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

ofDrawCircle(this->walker_list[i], 4);

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

if (glm::distance(this->walker_list[i], this->walker_list[k]) < 50) {

ofDrawLine(this->walker_list[i], this->walker_list[k]);

}

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

if (this->polygon_lile_list[i] > 128) {

ofSetColor(this->polygon_color_list[i]);

}

else {

ofSetColor(this->polygon_color_list[i], ofMap(this->polygon_lile_list[i], 128, 0, 255, 0));

}

this->polygon_list[i]->draw();

}

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

void ofApp::sort(vector<glm::vec2>& vertices) {

glm::vec2 tmp;

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

for (int k = i + 1; k < vertices.size(); k++) {

if (vertices[i].x < vertices[k].x) {

tmp = vertices[i];

vertices[i] = vertices[k];

vertices[k] = tmp;

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20200813

2020年8月12日2020年8月12日

RGB Boxes. Draw by openFrameworks

[ Video ]

[ About ]
RGB Boxes.

[ 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 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 frame;

};

#include "ofApp.h"

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

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

	ofBackground(239);
	ofSetLineWidth(3);
	ofEnableDepthTest();
	ofEnableBlendMode(ofBlendMode::OF_BLENDMODE_MULTIPLY);

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

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

	ofSeedRandom(39);

	this->frame.clear();
	vector<ofColor> color_list = { ofColor(255, 0, 0), ofColor(0, 255, 0), ofColor(0, 0, 255) };

	for (int len = 100; len <= 250; len += 150) {
		
		auto noise_seed = glm::vec3(ofRandom(1000), ofRandom(1000), ofRandom(1000));
		for (int i = 0; i < color_list.size(); i++) {

			auto angle_x = ofMap(ofNoise(noise_seed.x, i * 0.008 + ofGetFrameNum() * 0.0035), 0, 1, -PI, PI);
			auto angle_y = ofMap(ofNoise(noise_seed.y, i * 0.008 + ofGetFrameNum() * 0.0035), 0, 1, -PI, PI);
			auto angle_z = ofMap(ofNoise(noise_seed.z, i * 0.008 + ofGetFrameNum() * 0.0035), 0, 1, -PI, PI);

			auto rotation_x = glm::rotate(glm::mat4(), angle_x, glm::vec3(1, 0, 0));
			auto rotation_y = glm::rotate(glm::mat4(), angle_y, glm::vec3(0, 1, 0));
			auto rotation_z = glm::rotate(glm::mat4(), angle_z, glm::vec3(0, 0, 1));

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

			vertices.push_back(glm::vec3(len * -0.5, len * 0.5, len * -0.5));
			vertices.push_back(glm::vec3(len * 0.5, len * 0.5, len * -0.5));
			vertices.push_back(glm::vec3(len * 0.5, len * 0.5, len * 0.5));
			vertices.push_back(glm::vec3(len * -0.5, len * 0.5, len * 0.5));

			vertices.push_back(glm::vec3(len * -0.5, len * -0.5, len * -0.5));
			vertices.push_back(glm::vec3(len * 0.5, len * -0.5, len * -0.5));
			vertices.push_back(glm::vec3(len * 0.5, len * -0.5, len * 0.5));
			vertices.push_back(glm::vec3(len * -0.5, len * -0.5, len * 0.5));

			for (auto& vertex : vertices) {

				vertex = glm::vec4(vertex, 0) * rotation_z * rotation_y * rotation_x;
				this->frame.addColor(color_list[i]);
			}

			this->frame.addVertices(vertices);

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

			this->frame.addIndex(index + 4); this->frame.addIndex(index + 5);
			this->frame.addIndex(index + 5); this->frame.addIndex(index + 6);
			this->frame.addIndex(index + 6); this->frame.addIndex(index + 7);
			this->frame.addIndex(index + 7); this->frame.addIndex(index + 4);

			this->frame.addIndex(index + 0); this->frame.addIndex(index + 4);
			this->frame.addIndex(index + 1); this->frame.addIndex(index + 5);
			this->frame.addIndex(index + 2); this->frame.addIndex(index + 6);
			this->frame.addIndex(index + 3); this->frame.addIndex(index + 7);
		}
	}
}

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

	this->cam.begin();

	this->frame.drawWireframe();

	this->cam.end();
}

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

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

#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(60);

ofSetWindowTitle("openFrameworks");

ofBackground(239);

ofSetLineWidth(3);

ofEnableDepthTest();

ofEnableBlendMode(ofBlendMode::OF_BLENDMODE_MULTIPLY);

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

}

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

void ofApp::update() {

ofSeedRandom(39);

this->frame.clear();

vector<ofColor> color_list = { ofColor(255, 0, 0), ofColor(0, 255, 0), ofColor(0, 0, 255) };

for (int len = 100; len <= 250; len += 150) {

auto noise_seed = glm::vec3(ofRandom(1000), ofRandom(1000), ofRandom(1000));

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

auto angle_x = ofMap(ofNoise(noise_seed.x, i * 0.008 + ofGetFrameNum() * 0.0035), 0, 1, -PI, PI);

auto angle_y = ofMap(ofNoise(noise_seed.y, i * 0.008 + ofGetFrameNum() * 0.0035), 0, 1, -PI, PI);

auto angle_z = ofMap(ofNoise(noise_seed.z, i * 0.008 + ofGetFrameNum() * 0.0035), 0, 1, -PI, PI);

auto rotation_x = glm::rotate(glm::mat4(), angle_x, glm::vec3(1, 0, 0));

auto rotation_y = glm::rotate(glm::mat4(), angle_y, glm::vec3(0, 1, 0));

auto rotation_z = glm::rotate(glm::mat4(), angle_z, glm::vec3(0, 0, 1));

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

vector<glm::vec3> vertices;

vertices.push_back(glm::vec3(len * -0.5, len * 0.5, len * -0.5));

vertices.push_back(glm::vec3(len * 0.5, len * 0.5, len * -0.5));

vertices.push_back(glm::vec3(len * 0.5, len * 0.5, len * 0.5));

vertices.push_back(glm::vec3(len * -0.5, len * 0.5, len * 0.5));

vertices.push_back(glm::vec3(len * -0.5, len * -0.5, len * -0.5));

vertices.push_back(glm::vec3(len * 0.5, len * -0.5, len * -0.5));

vertices.push_back(glm::vec3(len * 0.5, len * -0.5, len * 0.5));

vertices.push_back(glm::vec3(len * -0.5, len * -0.5, len * 0.5));

for (auto& vertex : vertices) {

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

this->frame.addColor(color_list[i]);

}

this->frame.addVertices(vertices);

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

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

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

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

this->frame.addIndex(index + 4); this->frame.addIndex(index + 5);

this->frame.addIndex(index + 5); this->frame.addIndex(index + 6);

this->frame.addIndex(index + 6); this->frame.addIndex(index + 7);

this->frame.addIndex(index + 7); this->frame.addIndex(index + 4);

this->frame.addIndex(index + 0); this->frame.addIndex(index + 4);

this->frame.addIndex(index + 1); this->frame.addIndex(index + 5);

this->frame.addIndex(index + 2); this->frame.addIndex(index + 6);

this->frame.addIndex(index + 3); this->frame.addIndex(index + 7);

}

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

void ofApp::draw() {

this->cam.begin();

this->frame.drawWireframe();

this->cam.end();

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20200812

2025年7月
月	火	水	木	金	土	日
	1	2	3	4	5	6
7	8	9	10	11	12	13
14	15	16	17	18	19	20
21	22	23	24	25	26	27
28	29	30	31