noise – ページ 112 – プログラミング de 落描き

2022年4月12日

Drop. Draw by openframeworks

[ Video ]

[ About ]
ドロップ。

Drop.

[ Source ]

#pragma once
#include "ofMain.h"

class ofApp : public ofBaseApp {

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

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

#pragma once

#include "ofMain.h"

class ofApp : public ofBaseApp {

public:

void setup();

void update();

void draw();

void keyPressed(int key) {};

void keyReleased(int key) {};

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

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

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

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

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

void dragEvent(ofDragInfo dragInfo) {};

void gotMessage(ofMessage msg) {};

};

#include "ofApp.h"

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

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

	ofBackground(0);
	ofSetLineWidth(3);
}

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

	ofSeedRandom(39);

}

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

	auto span = 60; 

	ofSetColor(255);
	for (int x = span; x < ofGetWidth(); x += span) {

		for (int y = 0; y < ofGetHeight(); y += 3) {

			auto noise_value = ofNoise(x * 0.05, y * 0.008 - ofGetFrameNum() * 0.01);

			if (noise_value > 0.45) {

				auto radius = ofMap(noise_value, 0.45, 1, 0.1, span * 0.5);


				ofNoFill();
				ofDrawCircle(x, y, radius);
			}
		}
	}


	ofSetColor(0);
	for (int x = span; x < ofGetWidth(); x += span) {

		for (int y = 0; y < ofGetHeight(); y += 18) {

			auto noise_value = ofNoise(x * 0.05, y * 0.008 - ofGetFrameNum() * 0.01);

			if (noise_value > 0.45) {

				auto radius = ofMap(noise_value, 0.45, 1, 0.1, span * 0.5);

				ofFill();
				ofDrawCircle(x, y, radius);
			}
		}
	}
}

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

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

#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(60);

ofSetWindowTitle("openFrameworks");

ofBackground(0);

ofSetLineWidth(3);

}

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

void ofApp::update() {

ofSeedRandom(39);

}

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

void ofApp::draw() {

auto span = 60;

ofSetColor(255);

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

for (int y = 0; y < ofGetHeight(); y += 3) {

auto noise_value = ofNoise(x * 0.05, y * 0.008 - ofGetFrameNum() * 0.01);

if (noise_value > 0.45) {

auto radius = ofMap(noise_value, 0.45, 1, 0.1, span * 0.5);

ofNoFill();

ofDrawCircle(x, y, radius);

}

ofSetColor(0);

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

for (int y = 0; y < ofGetHeight(); y += 18) {

auto noise_value = ofNoise(x * 0.05, y * 0.008 - ofGetFrameNum() * 0.01);

if (noise_value > 0.45) {

auto radius = ofMap(noise_value, 0.45, 1, 0.1, span * 0.5);

ofFill();

ofDrawCircle(x, y, radius);

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20220412

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2022年4月10日

Circle or Rect. Draw by openFrameworks

[ Video ]

[ About ]
円か四角で埋める。

Circle or Rect.

[ Surce ]

#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(255);
	ofSetColor(0);
	ofSetLineWidth(2);
	ofEnableDepthTest();
}

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

}

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

	this->cam.begin();

	int len = 30;
	int width = len * 0.15;

	for (int x = -len * 12; x <= len * 12; x += len) {

		for (int y = -len * 12; y <= len * 12; y += len) {

			ofPushMatrix();
			ofTranslate(x, y, 0);

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

				int deg = param * 3.6 - 135;
				auto noise_value = ofNoise(x * 0.005, y * 0.005, ofGetFrameNum() * 0.015);

				vector<glm::vec3> vertices;
				if (noise_value > 0.5) {

					vertices.push_back(glm::vec3(this->make_point(len, param), width * 0.5));
					vertices.push_back(glm::vec3(this->make_point(len, param), width * 0.5));
				}
				else {

					vertices.push_back(glm::vec3(len * 0.4 * cos(deg * DEG_TO_RAD), len * 0.4 * sin(deg * DEG_TO_RAD), width * 0.5));
					vertices.push_back(glm::vec3(len * 0.4 * cos(deg * DEG_TO_RAD), len * 0.4 * sin(deg * DEG_TO_RAD), width * 0.5));
				}

				ofVertices(vertices);
			}
			ofEndShape();

			ofPopMatrix();
		}
	}

	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(255);

ofSetColor(0);

ofSetLineWidth(2);

ofEnableDepthTest();

}

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

void ofApp::update() {

}

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

void ofApp::draw() {

this->cam.begin();

int len = 30;

int width = len * 0.15;

for (int x = -len * 12; x <= len * 12; x += len) {

for (int y = -len * 12; y <= len * 12; y += len) {

ofPushMatrix();

ofTranslate(x, y, 0);

ofBeginShape();

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

int deg = param * 3.6 - 135;

auto noise_value = ofNoise(x * 0.005, y * 0.005, ofGetFrameNum() * 0.015);

vector<glm::vec3> vertices;

if (noise_value > 0.5) {

vertices.push_back(glm::vec3(this->make_point(len, param), width * 0.5));

}

else {

vertices.push_back(glm::vec3(len * 0.4 * cos(deg * DEG_TO_RAD), len * 0.4 * sin(deg * DEG_TO_RAD), width * 0.5));

}

ofVertices(vertices);

}

ofEndShape();

ofPopMatrix();

}

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/Insta20220410

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2022年4月9日

Wavering heart. Draw by openFrameworks

[ Video ]

[ About ]
揺れる心。

Wavering heart.

[ 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(float theta);

	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) {};

glm::vec2 make_point(float theta);

ofEasyCam cam;

ofMesh face, frame;

};

#include "ofApp.h"	

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

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

	ofBackground(255);
	ofEnableDepthTest();

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

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

	ofSeedRandom(39);

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

	for (float scale = 3; scale < 15; scale += 1) {

		auto start_index = this->face.getNumVertices();
		for (int deg = 0; deg < 360; deg += 1) {

			vector<glm::vec3> vertices;
			vertices.push_back(glm::vec3(this->make_point(deg * DEG_TO_RAD) * scale, -15));
			vertices.push_back(glm::vec3(this->make_point(deg * DEG_TO_RAD) * (scale + 0.5), -15));
			vertices.push_back(glm::vec3(this->make_point((deg + 1) * DEG_TO_RAD) * (scale + 0.5), -15));
			vertices.push_back(glm::vec3(this->make_point((deg + 1) * DEG_TO_RAD) * scale, -15));

			vertices.push_back(glm::vec3(this->make_point(deg * DEG_TO_RAD) * scale, 15));
			vertices.push_back(glm::vec3(this->make_point(deg * DEG_TO_RAD) * (scale + 0.5), 15));
			vertices.push_back(glm::vec3(this->make_point((deg + 1) * DEG_TO_RAD) * (scale + 0.5), 15));
			vertices.push_back(glm::vec3(this->make_point((deg + 1) * DEG_TO_RAD) * scale, 15));

			for (auto& vertex : vertices) {

				auto angle = ofMap(ofNoise(scale * 0.025, vertex.y * 0.001 + ofGetFrameNum() * 0.01), 0, 1, -PI * 2, PI * 2);
				auto rotation = glm::rotate(glm::mat4(), angle, glm::vec3(0, 1, 0));
				vertex = glm::vec4(vertex, 0) * rotation;
			}

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

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

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

		if (this->face.getNumVertices() != start_index) {

			this->frame.addIndex(start_index + 0); this->frame.addIndex(start_index + 4);
			this->frame.addIndex(start_index + 0); this->frame.addIndex(start_index + 1);
			this->frame.addIndex(start_index + 5); this->frame.addIndex(start_index + 1);
			this->frame.addIndex(start_index + 5); this->frame.addIndex(start_index + 4);

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

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

	this->cam.begin();
	ofRotateX(180);
	ofRotateY(ofGetFrameNum() * 0.5);

	ofSetColor(0);
	this->face.draw();

	ofSetColor(255);
	this->frame.drawWireframe();

	this->cam.end();
}

//--------------------------------------------------------------
// Reference by https://twitter.com/shiffman/status/1095764239665512453
glm::vec2 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::vec2(x, -y);
}

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

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

}

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

void ofApp::update() {

ofSeedRandom(39);

this->face.clear();

this->frame.clear();

for (float scale = 3; scale < 15; scale += 1) {

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

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

vector<glm::vec3> vertices;

vertices.push_back(glm::vec3(this->make_point(deg * DEG_TO_RAD) * scale, -15));

vertices.push_back(glm::vec3(this->make_point(deg * DEG_TO_RAD) * (scale + 0.5), -15));

vertices.push_back(glm::vec3(this->make_point((deg + 1) * DEG_TO_RAD) * (scale + 0.5), -15));

vertices.push_back(glm::vec3(this->make_point((deg + 1) * DEG_TO_RAD) * scale, -15));

vertices.push_back(glm::vec3(this->make_point(deg * DEG_TO_RAD) * scale, 15));

vertices.push_back(glm::vec3(this->make_point(deg * DEG_TO_RAD) * (scale + 0.5), 15));

vertices.push_back(glm::vec3(this->make_point((deg + 1) * DEG_TO_RAD) * (scale + 0.5), 15));

vertices.push_back(glm::vec3(this->make_point((deg + 1) * DEG_TO_RAD) * scale, 15));

for (auto& vertex : vertices) {

auto angle = ofMap(ofNoise(scale * 0.025, vertex.y * 0.001 + ofGetFrameNum() * 0.01), 0, 1, -PI * 2, PI * 2);

auto rotation = glm::rotate(glm::mat4(), angle, glm::vec3(0, 1, 0));

vertex = glm::vec4(vertex, 0) * rotation;

}

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

this->face.addVertices(vertices);

this->frame.addVertices(vertices);

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

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

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

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

this->face.addIndex(index + 0); this->face.addIndex(index + 4); this->face.addIndex(index + 1);

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

this->face.addIndex(index + 1); this->face.addIndex(index + 5); this->face.addIndex(index + 6);

this->face.addIndex(index + 6); this->face.addIndex(index + 2); this->face.addIndex(index + 1);

this->face.addIndex(index + 2); this->face.addIndex(index + 6); this->face.addIndex(index + 7);

this->face.addIndex(index + 7); this->face.addIndex(index + 3); this->face.addIndex(index + 2);

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

this->face.addIndex(index + 4); this->face.addIndex(index + 0); this->face.addIndex(index + 3);

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

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

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

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

}

if (this->face.getNumVertices() != start_index) {

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

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

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

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

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

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

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

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

}

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

void ofApp::draw() {

this->cam.begin();

ofRotateX(180);

ofRotateY(ofGetFrameNum() * 0.5);

ofSetColor(0);

this->face.draw();

ofSetColor(255);

this->frame.drawWireframe();

this->cam.end();

}

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

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

glm::vec2 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::vec2(x, -y);

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20220409

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2024年4月
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