プログラミング de 落描き – ページ 235 – クリエイティブ・コーディングによる生成物とソース

2022年6月5日

Disjointed torus. Draw by openFrameworks

[ Video ]

[ About ]
バラバラなトーラス。

Disjointed torus.

[ Source ]

#pragma once
#include "ofMain.h"

class ofApp : public ofBaseApp {

public:
	void setup();
	void update();
	void draw();

	void keyPressed(int key) {};
	void keyReleased(int key) {};
	void mouseMoved(int x, int y) {};
	void mouseDragged(int x, int y, int button) {};
	void mousePressed(int x, int y, int button) {};
	void mouseReleased(int x, int y, int button) {};
	void windowResized(int w, int h) {};
	void dragEvent(ofDragInfo dragInfo) {};
	void gotMessage(ofMessage msg) {};

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

	ofEasyCam cam;
	ofMesh face, line;
};

#pragma once

#include "ofMain.h"

class ofApp : public ofBaseApp {

public:

void setup();

void update();

void draw();

void keyPressed(int key) {};

void keyReleased(int key) {};

void mouseMoved(int x, int y) {};

void mouseDragged(int x, int y, int button) {};

void mousePressed(int x, int y, int button) {};

void mouseReleased(int x, int y, int button) {};

void windowResized(int w, int h) {};

void dragEvent(ofDragInfo dragInfo) {};

void gotMessage(ofMessage msg) {};

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

ofEasyCam cam;

ofMesh face, line;

};

#include "ofApp.h"

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

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

	ofBackground(0);
	ofEnableDepthTest();

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

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

	ofSeedRandom(39);

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

	float R = 250;
	float r = R * 0.25;
	float u_span = 15;
	float threshold = 0.55;

	for (float r = 40; r < 90; r += 10) {

		for (float u = 0; u < 360; u += u_span) {

			for (float v = 0; v < 360; v += 1.5) {

				auto noise_value = ofNoise(glm::vec4(this->make_point(R, r * 10, u, v) * 0.0015, ofGetFrameNum() * 0.008));

				if (noise_value < threshold) {

					continue;
				}

				auto prev_noise_value = ofNoise(glm::vec4(this->make_point(R, r * 10, u, v - 1.5) * 0.0015, ofGetFrameNum() * 0.008));
				auto next_noise_value = ofNoise(glm::vec4(this->make_point(R, r * 10, u, v + 1.5) * 0.0015, ofGetFrameNum() * 0.008));

				vector<glm::vec3> vertices;

				vertices.push_back(glm::vec3(this->make_point(R, r, u - u_span * 0.5 + 1, v - 1.5)));
				vertices.push_back(glm::vec3(this->make_point(R, r, u + u_span * 0.5 - 1, v - 1.5)));
				vertices.push_back(glm::vec3(this->make_point(R, r, u + u_span * 0.5 - 1, v + 1.5)));
				vertices.push_back(glm::vec3(this->make_point(R, r, u - u_span * 0.5 + 1, v + 1.5)));

				vertices.push_back(glm::vec3(this->make_point(R, r - 9, u - u_span * 0.5 + 1, v - 1.5)));
				vertices.push_back(glm::vec3(this->make_point(R, r - 9, u + u_span * 0.5 - 1, v - 1.5)));
				vertices.push_back(glm::vec3(this->make_point(R, r - 9, u + u_span * 0.5 - 1, v + 1.5)));
				vertices.push_back(glm::vec3(this->make_point(R, r - 9, u - u_span * 0.5 + 1, v + 1.5)));

				this->face.addVertices(vertices);
				this->line.addVertices(vertices);

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

					this->face.addColor(ofColor(0));
					this->line.addColor(ofColor(255));
				}

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

				this->face.addIndex(this->face.getNumVertices() - 5); this->face.addIndex(this->face.getNumVertices() - 6); this->face.addIndex(this->face.getNumVertices() - 8);
				this->face.addIndex(this->face.getNumVertices() - 7); this->face.addIndex(this->face.getNumVertices() - 6); this->face.addIndex(this->face.getNumVertices() - 8);

				this->face.addIndex(this->face.getNumVertices() - 4); this->face.addIndex(this->face.getNumVertices() - 1); this->face.addIndex(this->face.getNumVertices() - 5);
				this->face.addIndex(this->face.getNumVertices() - 4); this->face.addIndex(this->face.getNumVertices() - 5); this->face.addIndex(this->face.getNumVertices() - 8);

				this->face.addIndex(this->face.getNumVertices() - 3); this->face.addIndex(this->face.getNumVertices() - 2); this->face.addIndex(this->face.getNumVertices() - 6);
				this->face.addIndex(this->face.getNumVertices() - 3); this->face.addIndex(this->face.getNumVertices() - 6); this->face.addIndex(this->face.getNumVertices() - 7);

				this->line.addIndex(this->line.getNumVertices() - 1); this->line.addIndex(this->line.getNumVertices() - 4);
				this->line.addIndex(this->line.getNumVertices() - 2); this->line.addIndex(this->line.getNumVertices() - 3);

				this->line.addIndex(this->line.getNumVertices() - 5); this->line.addIndex(this->line.getNumVertices() - 8);
				this->line.addIndex(this->line.getNumVertices() - 6); this->line.addIndex(this->line.getNumVertices() - 7);

				if (next_noise_value < threshold) {

					this->face.addIndex(this->face.getNumVertices() - 2); this->face.addIndex(this->face.getNumVertices() - 1); this->face.addIndex(this->face.getNumVertices() - 5);
					this->face.addIndex(this->face.getNumVertices() - 5); this->face.addIndex(this->face.getNumVertices() - 6); this->face.addIndex(this->face.getNumVertices() - 2);

					this->line.addIndex(this->line.getNumVertices() - 1); this->line.addIndex(this->line.getNumVertices() - 2);
					this->line.addIndex(this->line.getNumVertices() - 5); this->line.addIndex(this->line.getNumVertices() - 6);

					this->line.addIndex(this->line.getNumVertices() - 2); this->line.addIndex(this->line.getNumVertices() - 6);
					this->line.addIndex(this->line.getNumVertices() - 1); this->line.addIndex(this->line.getNumVertices() - 5);
				}

				if (prev_noise_value < threshold) {

					this->face.addIndex(this->face.getNumVertices() - 4); this->face.addIndex(this->face.getNumVertices() - 3); this->face.addIndex(this->face.getNumVertices() - 7);
					this->face.addIndex(this->face.getNumVertices() - 7); this->face.addIndex(this->face.getNumVertices() - 8); this->face.addIndex(this->face.getNumVertices() - 4);

					this->line.addIndex(this->line.getNumVertices() - 3); this->line.addIndex(this->line.getNumVertices() - 4);
					this->line.addIndex(this->line.getNumVertices() - 7); this->line.addIndex(this->line.getNumVertices() - 8);

					this->line.addIndex(this->line.getNumVertices() - 3); this->line.addIndex(this->line.getNumVertices() - 7);
					this->line.addIndex(this->line.getNumVertices() - 4); this->line.addIndex(this->line.getNumVertices() - 8);
				}
			}
		}
	}
}

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

	this->cam.begin();

	this->line.drawWireframe();
	this->face.draw();

	this->cam.end();
}

//--------------------------------------------------------------
glm::vec3 ofApp::make_point(float R, float r, float u, float v) {

	// 数学デッサン教室 描いて楽しむ数学たち　P.31

	u *= DEG_TO_RAD;
	v *= DEG_TO_RAD;

	auto x = (R + r * cos(u)) * cos(v);
	auto y = (R + r * cos(u)) * sin(v);
	auto z = r * sin(u);

	return glm::vec3(x, y, z);
}


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

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

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

#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(30);

ofSetWindowTitle("openFrameworks");

ofBackground(0);

ofEnableDepthTest();

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

}

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

void ofApp::update() {

ofSeedRandom(39);

this->face.clear();

this->line.clear();

float R = 250;

float r = R * 0.25;

float u_span = 15;

float threshold = 0.55;

for (float r = 40; r < 90; r += 10) {

for (float u = 0; u < 360; u += u_span) {

for (float v = 0; v < 360; v += 1.5) {

auto noise_value = ofNoise(glm::vec4(this->make_point(R, r * 10, u, v) * 0.0015, ofGetFrameNum() * 0.008));

if (noise_value < threshold) {

continue;

}

auto prev_noise_value = ofNoise(glm::vec4(this->make_point(R, r * 10, u, v - 1.5) * 0.0015, ofGetFrameNum() * 0.008));

auto next_noise_value = ofNoise(glm::vec4(this->make_point(R, r * 10, u, v + 1.5) * 0.0015, ofGetFrameNum() * 0.008));

vector<glm::vec3> vertices;

vertices.push_back(glm::vec3(this->make_point(R, r, u - u_span * 0.5 + 1, v - 1.5)));

vertices.push_back(glm::vec3(this->make_point(R, r, u + u_span * 0.5 - 1, v - 1.5)));

vertices.push_back(glm::vec3(this->make_point(R, r, u + u_span * 0.5 - 1, v + 1.5)));

vertices.push_back(glm::vec3(this->make_point(R, r, u - u_span * 0.5 + 1, v + 1.5)));

vertices.push_back(glm::vec3(this->make_point(R, r - 9, u - u_span * 0.5 + 1, v - 1.5)));

vertices.push_back(glm::vec3(this->make_point(R, r - 9, u + u_span * 0.5 - 1, v - 1.5)));

vertices.push_back(glm::vec3(this->make_point(R, r - 9, u + u_span * 0.5 - 1, v + 1.5)));

vertices.push_back(glm::vec3(this->make_point(R, r - 9, u - u_span * 0.5 + 1, v + 1.5)));

this->face.addVertices(vertices);

this->line.addVertices(vertices);

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

this->face.addColor(ofColor(0));

this->line.addColor(ofColor(255));

}

this->face.addIndex(this->face.getNumVertices() - 1); this->face.addIndex(this->face.getNumVertices() - 2); this->face.addIndex(this->face.getNumVertices() - 4);

this->face.addIndex(this->face.getNumVertices() - 3); this->face.addIndex(this->face.getNumVertices() - 2); this->face.addIndex(this->face.getNumVertices() - 4);

this->face.addIndex(this->face.getNumVertices() - 5); this->face.addIndex(this->face.getNumVertices() - 6); this->face.addIndex(this->face.getNumVertices() - 8);

this->face.addIndex(this->face.getNumVertices() - 7); this->face.addIndex(this->face.getNumVertices() - 6); this->face.addIndex(this->face.getNumVertices() - 8);

this->face.addIndex(this->face.getNumVertices() - 4); this->face.addIndex(this->face.getNumVertices() - 1); this->face.addIndex(this->face.getNumVertices() - 5);

this->face.addIndex(this->face.getNumVertices() - 4); this->face.addIndex(this->face.getNumVertices() - 5); this->face.addIndex(this->face.getNumVertices() - 8);

this->face.addIndex(this->face.getNumVertices() - 3); this->face.addIndex(this->face.getNumVertices() - 2); this->face.addIndex(this->face.getNumVertices() - 6);

this->face.addIndex(this->face.getNumVertices() - 3); this->face.addIndex(this->face.getNumVertices() - 6); this->face.addIndex(this->face.getNumVertices() - 7);

this->line.addIndex(this->line.getNumVertices() - 1); this->line.addIndex(this->line.getNumVertices() - 4);

this->line.addIndex(this->line.getNumVertices() - 2); this->line.addIndex(this->line.getNumVertices() - 3);

this->line.addIndex(this->line.getNumVertices() - 5); this->line.addIndex(this->line.getNumVertices() - 8);

this->line.addIndex(this->line.getNumVertices() - 6); this->line.addIndex(this->line.getNumVertices() - 7);

if (next_noise_value < threshold) {

this->face.addIndex(this->face.getNumVertices() - 2); this->face.addIndex(this->face.getNumVertices() - 1); this->face.addIndex(this->face.getNumVertices() - 5);

this->face.addIndex(this->face.getNumVertices() - 5); this->face.addIndex(this->face.getNumVertices() - 6); this->face.addIndex(this->face.getNumVertices() - 2);

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

this->line.addIndex(this->line.getNumVertices() - 5); this->line.addIndex(this->line.getNumVertices() - 6);

this->line.addIndex(this->line.getNumVertices() - 2); this->line.addIndex(this->line.getNumVertices() - 6);

this->line.addIndex(this->line.getNumVertices() - 1); this->line.addIndex(this->line.getNumVertices() - 5);

}

if (prev_noise_value < threshold) {

this->face.addIndex(this->face.getNumVertices() - 4); this->face.addIndex(this->face.getNumVertices() - 3); this->face.addIndex(this->face.getNumVertices() - 7);

this->face.addIndex(this->face.getNumVertices() - 7); this->face.addIndex(this->face.getNumVertices() - 8); this->face.addIndex(this->face.getNumVertices() - 4);

this->line.addIndex(this->line.getNumVertices() - 3); this->line.addIndex(this->line.getNumVertices() - 4);

this->line.addIndex(this->line.getNumVertices() - 7); this->line.addIndex(this->line.getNumVertices() - 8);

this->line.addIndex(this->line.getNumVertices() - 3); this->line.addIndex(this->line.getNumVertices() - 7);

this->line.addIndex(this->line.getNumVertices() - 4); this->line.addIndex(this->line.getNumVertices() - 8);

}

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

void ofApp::draw() {

this->cam.begin();

this->line.drawWireframe();

this->face.draw();

this->cam.end();

}

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

glm::vec3 ofApp::make_point(float R, float r, float u, float v) {

// 数学デッサン教室描いて楽しむ数学たち　P.31

u *= DEG_TO_RAD;

v *= DEG_TO_RAD;

auto x = (R + r * cos(u)) * cos(v);

auto y = (R + r * cos(u)) * sin(v);

auto z = r * sin(u);

return glm::vec3(x, y, z);

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20220605

[ほしいものリスト]
Amazon

[ Sponsor Link ]

2022年6月4日

Rotated circle packing. Draw by openFrameworks

[ Video ]

[ About ]
グループ単位でグールグル。

Rotate by group.

[ Source ]

#pragma once
#include "ofMain.h"

class ofApp : public ofBaseApp {

public:
	void setup();
	void update();
	void draw();

	void keyPressed(int key) {};
	void keyReleased(int key) {};
	void mouseMoved(int x, int y) {};
	void mouseDragged(int x, int y, int button) {};
	void mousePressed(int x, int y, int button) {};
	void mouseReleased(int x, int y, int button) {};
	void windowResized(int w, int h) {};
	void dragEvent(ofDragInfo dragInfo) {};
	void gotMessage(ofMessage msg) {};

	void draw_circle_packing(glm::vec2, float, vector<ofColor>);

	ofEasyCam cam;

	float random_seed;
	vector<glm::vec2> location_list;
	vector<float> radus_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) {};

void draw_circle_packing(glm::vec2, float, vector<ofColor>);

ofEasyCam cam;

float random_seed;

vector<glm::vec2> location_list;

vector<float> radus_list;

};

#include "ofApp.h"

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

	ofSetFrameRate(30);
	ofSetWindowTitle("openframeworks");

	ofBackground(0);
	ofNoFill();
	ofSetCircleResolution(36);
}

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

	if (ofGetFrameNum() % 180 < 5) {

		this->random_seed = ofRandom(1000);
	}

	ofSeedRandom(this->random_seed);
}

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

	this->cam.begin();

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

	this->draw_circle_packing(glm::vec2(), 340, color_palette);

	this->cam.end();
}

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

	auto number_of_sphere = radius * 1.2;
	vector<glm::vec2> location_list;
	vector<float> radius_list;

	while (location_list.size() < number_of_sphere) {

		auto tmp_location_radius = ofRandom(1, radius * 0.75);
		auto tmp_deg = ofRandom(0, 360);
		auto tmp_location = glm::vec2(location.x + tmp_location_radius * cos(tmp_deg * DEG_TO_RAD), location.y + tmp_location_radius * sin(tmp_deg * DEG_TO_RAD));
		auto tmp_radius = ofRandom(radius * 0.003, radius * 0.3);

		bool flag = true;
		for (int i = 0; i < location_list.size(); i++) {

			if (glm::distance(tmp_location, location_list[i]) < tmp_radius + radius_list[i] + 1) {

				flag = false;
				break;
			}
		}

		if (flag) {

			location_list.push_back(tmp_location);
			radius_list.push_back(tmp_radius);

			ofSetColor(color_palette[ofRandom(color_palette.size())]);

			ofPushMatrix();
			ofTranslate(tmp_location);
			ofRotateZ(ofRandom(360) + ofGetFrameNum() * ofRandom(0.5, 1.5));
			ofRotateY(ofRandom(360) + ofGetFrameNum() * ofRandom(0.5, 1.5));
			ofRotateX(ofRandom(360) + ofGetFrameNum() * ofRandom(0.5, 1.5));

			ofDrawCircle(glm::vec2(), tmp_radius);

			if (tmp_radius > 15) {

				this->draw_circle_packing(glm::vec2(), tmp_radius, color_palette);
			}

			ofPopMatrix();
		}
	}
}

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

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

#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(30);

ofSetWindowTitle("openframeworks");

ofBackground(0);

ofNoFill();

ofSetCircleResolution(36);

}

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

void ofApp::update() {

if (ofGetFrameNum() % 180 < 5) {

this->random_seed = ofRandom(1000);

}

ofSeedRandom(this->random_seed);

}

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

void ofApp::draw() {

this->cam.begin();

//// Day 228 Zenith Blue

vector<ofColor> color_palette;

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

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

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

this->draw_circle_packing(glm::vec2(), 340, color_palette);

this->cam.end();

}

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

void ofApp::draw_circle_packing(glm::vec2 location, float radius, vector<ofColor> color_palette) {

auto number_of_sphere = radius * 1.2;

vector<glm::vec2> location_list;

vector<float> radius_list;

while (location_list.size() < number_of_sphere) {

auto tmp_location_radius = ofRandom(1, radius * 0.75);

auto tmp_deg = ofRandom(0, 360);

auto tmp_location = glm::vec2(location.x + tmp_location_radius * cos(tmp_deg * DEG_TO_RAD), location.y + tmp_location_radius * sin(tmp_deg * DEG_TO_RAD));

auto tmp_radius = ofRandom(radius * 0.003, radius * 0.3);

bool flag = true;

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

if (glm::distance(tmp_location, location_list[i]) < tmp_radius + radius_list[i] + 1) {

flag = false;

break;

}

if (flag) {

location_list.push_back(tmp_location);

radius_list.push_back(tmp_radius);

ofSetColor(color_palette[ofRandom(color_palette.size())]);

ofPushMatrix();

ofTranslate(tmp_location);

ofRotateZ(ofRandom(360) + ofGetFrameNum() * ofRandom(0.5, 1.5));

ofRotateY(ofRandom(360) + ofGetFrameNum() * ofRandom(0.5, 1.5));

ofRotateX(ofRandom(360) + ofGetFrameNum() * ofRandom(0.5, 1.5));

ofDrawCircle(glm::vec2(), tmp_radius);

if (tmp_radius > 15) {

this->draw_circle_packing(glm::vec2(), tmp_radius, color_palette);

}

ofPopMatrix();

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20220604

[ほしいものリスト]
Amazon

[ Sponsor Link ]

2022年6月3日

Ameba of pair. Draw by openFrameworks

[ Video ]

[ About ]
2つのアメーバ。

Pair ameba.

[ 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) {};

	ofMesh mesh;
	vector<float> noise_seed_list;
	vector<float> noise_param_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 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) {};

ofMesh mesh;

vector<float> noise_seed_list;

vector<float> noise_param_list;

};

#include "ofApp.h"

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

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

	ofBackground(0);
	ofEnableBlendMode(ofBlendMode::OF_BLENDMODE_ADD);
	ofSetLineWidth(2);

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

	for (int i = 0; i < 2; i++) {

		this->noise_seed_list.push_back(ofRandom(1000));
		this->noise_param_list.push_back(0);
	}
}

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

	this->mesh.clear();

	int radius = 320;
	int span = 28;

	for (int deg_start = 1; deg_start < 360; deg_start += 90) {

		for (int deg = deg_start; deg < deg_start + 88; deg += 2) {

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

				auto noise_location = glm::vec2(radius * cos(deg * DEG_TO_RAD), radius * sin(deg * DEG_TO_RAD));
				auto noise_param = ofMap(ofNoise(this->noise_seed_list[i], deg * 0.025 + this->noise_param_list[i]), 0, 1, 0.5, 1.0);

				this->mesh.addVertex(glm::vec3(radius * noise_param * cos(deg * DEG_TO_RAD), radius * noise_param * sin(deg * DEG_TO_RAD), 0));

				if (i > 0) {

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

				if (deg > deg_start) {

					this->mesh.addIndex(this->mesh.getNumVertices() - 1);
					this->mesh.addIndex(this->mesh.getNumVertices() - this->noise_seed_list.size() - 1);
				}

				if (i % 2 == 0) {

					this->mesh.addColor(ofColor(0, 0, 255));
				}
				else {

					this->mesh.addColor(ofColor(255, 0, 0));
				}
			}
		}
	}

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

		this->noise_param_list[i] += 0.008;
	}
}

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

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

	this->mesh.drawWireframe();
}

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

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

#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(60);

ofSetWindowTitle("openframeworks");

ofBackground(0);

ofEnableBlendMode(ofBlendMode::OF_BLENDMODE_ADD);

ofSetLineWidth(2);

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

for (int i = 0; i < 2; i++) {

this->noise_seed_list.push_back(ofRandom(1000));

this->noise_param_list.push_back(0);

}

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

void ofApp::update() {

this->mesh.clear();

int radius = 320;

int span = 28;

for (int deg_start = 1; deg_start < 360; deg_start += 90) {

for (int deg = deg_start; deg < deg_start + 88; deg += 2) {

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

auto noise_location = glm::vec2(radius * cos(deg * DEG_TO_RAD), radius * sin(deg * DEG_TO_RAD));

auto noise_param = ofMap(ofNoise(this->noise_seed_list[i], deg * 0.025 + this->noise_param_list[i]), 0, 1, 0.5, 1.0);

this->mesh.addVertex(glm::vec3(radius * noise_param * cos(deg * DEG_TO_RAD), radius * noise_param * sin(deg * DEG_TO_RAD), 0));

if (i > 0) {

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

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

}

if (deg > deg_start) {

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

this->mesh.addIndex(this->mesh.getNumVertices() - this->noise_seed_list.size() - 1);

}

if (i % 2 == 0) {

this->mesh.addColor(ofColor(0, 0, 255));

}

else {

this->mesh.addColor(ofColor(255, 0, 0));

}

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

this->noise_param_list[i] += 0.008;

}

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

void ofApp::draw() {

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

this->mesh.drawWireframe();

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20220603

[ほしいものリスト]
Amazon

[ Sponsor Link ]

2024年5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