noise – ページ 26 – プログラミング de 落描き

2023年5月6日

Marble heart. Draw by openFrameworks

[ Video ]

[ About ]
マーブル・ハート。

[ 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) {};

	glm::vec3 make_point(float theta);
};

#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) {};

glm::vec3 make_point(float theta);

};

#include "ofApp.h"	

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

	ofSetFrameRate(30);
	ofSetWindowTitle("openFrameworks");
	
	ofBackground(39);
	ofSetColor(255);
	ofNoFill();
	ofSetLineWidth(2);
	ofEnableBlendMode(ofBlendMode::OF_BLENDMODE_ADD);
}

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

	ofSeedRandom(139);
}

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

	ofTranslate(ofGetWindowSize() * 0.5 + glm::vec2(0, -50));

	vector<ofColor> color_list = { ofColor(239, 0, 0), ofColor(0, 0, 239), ofColor(0, 239, 0) };
	float scale_span = 0.1;
	float deg_span = 0.1;

	for (int i = 0; i < color_list.size(); i++) {
	
		ofMesh mesh;
		float noise_seed = ofRandom(1000);
		for (float scale = 2; scale < 20; scale += scale_span) {

			for (float deg = 0; deg < 360; deg += deg_span) {

				auto noise_location = this->make_point((deg + deg_span * 0.5) * DEG_TO_RAD) * (scale + scale_span * 0.5);

				if (ofNoise(noise_seed, noise_location.x * 0.005, noise_location.y * 0.005, ofGetFrameNum() * 0.03) > 0.45) {

					mesh.addVertex(this->make_point(deg * DEG_TO_RAD) * scale);
					mesh.addVertex(this->make_point((deg + deg_span) * DEG_TO_RAD) * scale);
					mesh.addVertex(this->make_point((deg + deg_span) * DEG_TO_RAD) * (scale + scale_span));
					mesh.addVertex(this->make_point(deg * DEG_TO_RAD) * (scale + scale_span));

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

					mesh.addColor(color_list[i]);
					mesh.addColor(color_list[i]);
					mesh.addColor(color_list[i]);
					mesh.addColor(color_list[i]);
				}
			}
		}
		mesh.draw();
	}

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

		ofVertex(this->make_point(deg * DEG_TO_RAD) * 20);
	}
	ofEndShape(true);

	ostringstream os;
	os << setw(4) << setfill('0') << ofGetFrameNum() + 1;
	ofImage image;
	image.grabScreen(0, 0, ofGetWidth(), ofGetHeight());
	image.saveImage("image/img_" + os.str() + ".jpg");
	if (ofGetFrameNum() + 1 >= 24 * 20) {

		std::exit(1);
	}

	// > ffmpeg -i img_%04d.jpg -r 30 out.mp4
}

//--------------------------------------------------------------
// Reference by https://twitter.com/shiffman/status/1095764239665512453
glm::vec3 ofApp::make_point(float theta) {

	float x = 16 * (pow(sin(theta), 3));
	float y = 13 * cos(theta) - 5 * cos(2 * theta) - 2 * cos(3 * theta) - cos(4 * theta);
	return glm::vec3(x, -y, 0);
}


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

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

#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(30);

ofSetWindowTitle("openFrameworks");

ofBackground(39);

ofSetColor(255);

ofNoFill();

ofSetLineWidth(2);

ofEnableBlendMode(ofBlendMode::OF_BLENDMODE_ADD);

}

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

void ofApp::update() {

ofSeedRandom(139);

}

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

void ofApp::draw() {

ofTranslate(ofGetWindowSize() * 0.5 + glm::vec2(0, -50));

vector<ofColor> color_list = { ofColor(239, 0, 0), ofColor(0, 0, 239), ofColor(0, 239, 0) };

float scale_span = 0.1;

float deg_span = 0.1;

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

ofMesh mesh;

float noise_seed = ofRandom(1000);

for (float scale = 2; scale < 20; scale += scale_span) {

for (float deg = 0; deg < 360; deg += deg_span) {

auto noise_location = this->make_point((deg + deg_span * 0.5) * DEG_TO_RAD) * (scale + scale_span * 0.5);

if (ofNoise(noise_seed, noise_location.x * 0.005, noise_location.y * 0.005, ofGetFrameNum() * 0.03) > 0.45) {

mesh.addVertex(this->make_point(deg * DEG_TO_RAD) * scale);

mesh.addVertex(this->make_point((deg + deg_span) * DEG_TO_RAD) * scale);

mesh.addVertex(this->make_point((deg + deg_span) * DEG_TO_RAD) * (scale + scale_span));

mesh.addVertex(this->make_point(deg * DEG_TO_RAD) * (scale + scale_span));

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

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

mesh.addColor(color_list[i]);

}

mesh.draw();

}

ofBeginShape();

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

ofVertex(this->make_point(deg * DEG_TO_RAD) * 20);

}

ofEndShape(true);

ostringstream os;

os << setw(4) << setfill('0') << ofGetFrameNum() + 1;

ofImage image;

image.grabScreen(0, 0, ofGetWidth(), ofGetHeight());

image.saveImage("image/img_" + os.str() + ".jpg");

if (ofGetFrameNum() + 1 >= 24 * 20) {

std::exit(1);

}

// > ffmpeg -i img_%04d.jpg -r 30 out.mp4

}

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

// Reference by https://twitter.com/shiffman/status/1095764239665512453

glm::vec3 ofApp::make_point(float theta) {

float x = 16 * (pow(sin(theta), 3));

float y = 13 * cos(theta) - 5 * cos(2 * theta) - 2 * cos(3 * theta) - cos(4 * theta);

return glm::vec3(x, -y, 0);

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20230506

2023年5月5日

Normalize cube. Draw by openFrameworks

[ Video ]

[ About ]
正方形と球。

[ 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);

	ofEasyCam cam;
};

#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);

ofEasyCam cam;

};

#include "ofApp.h"

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

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

	ofBackground(39);
	ofSetLineWidth(1);
	ofEnableBlendMode(ofBlendMode::OF_BLENDMODE_ADD);
	ofNoFill();
}

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

}

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

	this->cam.begin();

	ofRotateY(ofGetFrameNum());
	ofRotateX(cos(ofGetFrameNum() * 0.05) * 15);

	float len = 300;
	float span = len * 1.5;
	ofColor color;

	for (int k = 0; k < 4; k++) {

		ofRotateY(90);

		for (int i = 0; i < 20; i++) {

			vector<glm::vec3> vertices;
			for (int param = 0; param < 100; param++) {

				float deg = param * 3.6 - 135;
				float noise_value = ofNoise(k, cos(deg * DEG_TO_RAD) * 0.5, sin(deg * DEG_TO_RAD) * 0.5, i * 0.013 + ofGetFrameNum() * 0.02);

				auto location = glm::vec3(this->make_point(len, param), 150);

				if (noise_value > 0.5) {

					vertices.push_back(location);
				}
				else {

					vertices.push_back(glm::normalize(location) * 100);
				}
			}

			color.setHsb(ofMap(i, 0, 15, 0, 255), 255, 200);
			ofSetColor(color);

			ofBeginShape();
			ofVertices(vertices);
			ofEndShape(true);
		}
	}

	//ofFill();

	this->cam.end();
}

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

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

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

#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(30);

ofSetWindowTitle("openframeworks");

ofBackground(39);

ofSetLineWidth(1);

ofEnableBlendMode(ofBlendMode::OF_BLENDMODE_ADD);

ofNoFill();

}

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

void ofApp::update() {

}

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

void ofApp::draw() {

this->cam.begin();

ofRotateY(ofGetFrameNum());

ofRotateX(cos(ofGetFrameNum() * 0.05) * 15);

float len = 300;

float span = len * 1.5;

ofColor color;

for (int k = 0; k < 4; k++) {

ofRotateY(90);

for (int i = 0; i < 20; i++) {

vector<glm::vec3> vertices;

for (int param = 0; param < 100; param++) {

float deg = param * 3.6 - 135;

float noise_value = ofNoise(k, cos(deg * DEG_TO_RAD) * 0.5, sin(deg * DEG_TO_RAD) * 0.5, i * 0.013 + ofGetFrameNum() * 0.02);

auto location = glm::vec3(this->make_point(len, param), 150);

if (noise_value > 0.5) {

vertices.push_back(location);

}

else {

vertices.push_back(glm::normalize(location) * 100);

}

color.setHsb(ofMap(i, 0, 15, 0, 255), 255, 200);

ofSetColor(color);

ofBeginShape();

ofVertices(vertices);

ofEndShape(true);

}

//ofFill();

this->cam.end();

}

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

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));

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20230505

2023年5月4日

Rect or Circle. Draw by openFrameworks

[ Video ]

[ About ]
四角または円。

[ 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);
};

#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);

};

#include "ofApp.h"

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

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

	ofBackground(39);
	ofSetLineWidth(1);
	ofEnableBlendMode(ofBlendMode::OF_BLENDMODE_ADD);
	ofNoFill();
}

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

}

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

	ofTranslate(ofGetWindowSize() * 0.5);

	float len = 150;
	float span = len * 1.5;
	for (int x = -span; x <= span; x += span) {

		for (int y = -span; y <= span; y += span) {

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

				vector<glm::vec3> vertices;
				for (int param = 0; param < 100; param++) {

					float deg = param * 3.6 - 135;
					float noise_value = ofNoise(x + cos(deg * DEG_TO_RAD) * 0.5, y + sin(deg * DEG_TO_RAD) * 0.5, i * 0.03 + ofGetFrameNum() * 0.02);

					if (noise_value > 0.5) {

						vertices.push_back(glm::vec3(this->make_point(len, param), 0));
					}
					else {

						vertices.push_back(glm::vec3(len * 0.25 * cos(deg * DEG_TO_RAD), len * 0.25 * sin(deg * DEG_TO_RAD), 0));
					}
				}

				for (auto& vertex : vertices) {

					vertex += glm::vec3(x, y, 0);
				}

				color.setHsb(ofMap(i, 0, 15, 0, 255), 255, 200);
				ofSetColor(color);

				ofBeginShape();
				ofVertices(vertices);
				ofEndShape(true);
			}

		}
	}
}

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

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

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

#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(30);

ofSetWindowTitle("openframeworks");

ofBackground(39);

ofSetLineWidth(1);

ofEnableBlendMode(ofBlendMode::OF_BLENDMODE_ADD);

ofNoFill();

}

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

void ofApp::update() {

}

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

void ofApp::draw() {

ofTranslate(ofGetWindowSize() * 0.5);

float len = 150;

float span = len * 1.5;

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

for (int y = -span; y <= span; y += span) {

ofColor color;

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

vector<glm::vec3> vertices;

for (int param = 0; param < 100; param++) {

float deg = param * 3.6 - 135;

float noise_value = ofNoise(x + cos(deg * DEG_TO_RAD) * 0.5, y + sin(deg * DEG_TO_RAD) * 0.5, i * 0.03 + ofGetFrameNum() * 0.02);

if (noise_value > 0.5) {

vertices.push_back(glm::vec3(this->make_point(len, param), 0));

}

else {

vertices.push_back(glm::vec3(len * 0.25 * cos(deg * DEG_TO_RAD), len * 0.25 * sin(deg * DEG_TO_RAD), 0));

}

for (auto& vertex : vertices) {

vertex += glm::vec3(x, y, 0);

}

color.setHsb(ofMap(i, 0, 15, 0, 255), 255, 200);

ofSetColor(color);

ofBeginShape();

ofVertices(vertices);

ofEndShape(true);

}

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

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));

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20230504

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