noise – ページ 88 – プログラミング de 落描き

2022年8月1日

Connect circles. Draw by openFrameworks

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[ About ]
円をつなぐ。

[ 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) {};
};

#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) {};

};

#include "ofApp.h"

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

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

	ofBackground(0);
	ofSetColor(200);
	ofNoFill();
	ofSetCircleResolution(60);
	ofEnableBlendMode(ofBlendMode::OF_BLENDMODE_ADD);
}

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

	ofSeedRandom(39);
}

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

	ofTranslate(ofGetWindowSize() * 0.5);

	auto span = 10;
	for (auto radius = 150; radius <= 450; radius += 50) {

		auto small_radius = (radius * 2 * 3.14) / 360 * span;
		for (auto deg = 0; deg < 360; deg += span * 1.5) {

			auto base_location = glm::vec2(radius * cos(deg * DEG_TO_RAD), radius * sin(deg * DEG_TO_RAD));
			ofNoFill();
			ofDrawCircle(base_location, 10);
			ofFill();
			ofDrawCircle(base_location, 5);

			ofSeedRandom(39);
			for (auto i = 0; i < 3; i++) {

				auto noise_seed = glm::vec2(ofRandom(1000), ofRandom(1000));

				auto noise_radius = ofMap(ofNoise(noise_seed.x, base_location.x * 0.05, ofGetFrameNum() * 0.005), 0, 1, 0, small_radius);
				auto noise_deg = ofMap(ofNoise(noise_seed.y, base_location.y * 0.05, ofGetFrameNum() * 0.005), 0, 1, -360, 360);

				auto noise_location = glm::vec2(noise_radius * cos(noise_deg * DEG_TO_RAD), noise_radius * sin(noise_deg * DEG_TO_RAD));

				ofNoFill();
				ofDrawCircle(base_location + noise_location, 5);
				ofFill();
				ofDrawCircle(base_location + noise_location, 2);
				ofDrawLine(base_location, base_location + noise_location);
			}
		}
	}
}

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

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

#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(60);

ofSetWindowTitle("openframeworks");

ofBackground(0);

ofSetColor(200);

ofNoFill();

ofSetCircleResolution(60);

ofEnableBlendMode(ofBlendMode::OF_BLENDMODE_ADD);

}

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

void ofApp::update() {

ofSeedRandom(39);

}

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

void ofApp::draw() {

ofTranslate(ofGetWindowSize() * 0.5);

auto span = 10;

for (auto radius = 150; radius <= 450; radius += 50) {

auto small_radius = (radius * 2 * 3.14) / 360 * span;

for (auto deg = 0; deg < 360; deg += span * 1.5) {

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

ofNoFill();

ofDrawCircle(base_location, 10);

ofFill();

ofDrawCircle(base_location, 5);

ofSeedRandom(39);

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

auto noise_seed = glm::vec2(ofRandom(1000), ofRandom(1000));

auto noise_radius = ofMap(ofNoise(noise_seed.x, base_location.x * 0.05, ofGetFrameNum() * 0.005), 0, 1, 0, small_radius);

auto noise_deg = ofMap(ofNoise(noise_seed.y, base_location.y * 0.05, ofGetFrameNum() * 0.005), 0, 1, -360, 360);

auto noise_location = glm::vec2(noise_radius * cos(noise_deg * DEG_TO_RAD), noise_radius * sin(noise_deg * DEG_TO_RAD));

ofNoFill();

ofDrawCircle(base_location + noise_location, 5);

ofFill();

ofDrawCircle(base_location + noise_location, 2);

ofDrawLine(base_location, base_location + noise_location);

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20220801

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2022年7月31日

Vertical and diagonal lines. Draw by openFrameworks

[ Video ]

[ About ]
縦線・横線。

Vertical and diagonal lines

[ 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) {};
};

#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) {};

};

#include "ofApp.h"

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

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

	ofBackground(0);
	ofSetColor(255);
	ofSetLineWidth(2);
}

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

	ofSeedRandom(39);
}

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

	int span = 40;
	for (int x = span * 0.5 + span; x < ofGetWidth() - span; x += span) {

		for (int y = span * 0.5 + span; y < ofGetHeight() - span; y += span) {

			auto noise_value = ofNoise(x * 0.0045, y * 0.0045, ofGetFrameNum() * 0.015);

			if (noise_value < 0.4) { noise_value = 0; }
			else if (noise_value < 0.6) { noise_value = ofMap(noise_value, 0.35, 0.6, 0, 1); }
			else { noise_value = 1; }

			int len = ofMap(noise_value, 0, 1, span * 0.5, span * 0.5 * sqrt(2));

			ofPushMatrix();
			ofTranslate(x, y);
			ofRotate(ofMap(noise_value, 0, 1, 0, 45));

			ofDrawLine(-len, 0, len, 0);
			ofDrawLine(0, -len, 0, len);

			ofPopMatrix();
		}
	}
}

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

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

#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(60);

ofSetWindowTitle("openframeworks");

ofBackground(0);

ofSetColor(255);

ofSetLineWidth(2);

}

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

void ofApp::update() {

ofSeedRandom(39);

}

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

void ofApp::draw() {

int span = 40;

for (int x = span * 0.5 + span; x < ofGetWidth() - span; x += span) {

for (int y = span * 0.5 + span; y < ofGetHeight() - span; y += span) {

auto noise_value = ofNoise(x * 0.0045, y * 0.0045, ofGetFrameNum() * 0.015);

if (noise_value < 0.4) { noise_value = 0; }

else if (noise_value < 0.6) { noise_value = ofMap(noise_value, 0.35, 0.6, 0, 1); }

else { noise_value = 1; }

int len = ofMap(noise_value, 0, 1, span * 0.5, span * 0.5 * sqrt(2));

ofPushMatrix();

ofTranslate(x, y);

ofRotate(ofMap(noise_value, 0, 1, 0, 45));

ofDrawLine(-len, 0, len, 0);

ofDrawLine(0, -len, 0, len);

ofPopMatrix();

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20220731

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2022年7月30日

Rainbow rectangle. Draw by openFrameworks

[ Video ]

[ About ]
四角い虹。

Rainbow rectangle.

[ 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;

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

ofEasyCam cam;

ofMesh face, line;

};

#include "ofApp.h"

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

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

	ofBackground(0);
	ofSetLineWidth(2);
	ofEnableDepthTest();

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

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

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

	int len = 300;
	int width = 50;
	ofColor color;
	for (int y = -300; y <= 300; y += width) {

		int start_param = ofMap(ofNoise(y * 0.008, ofGetFrameNum() * 0.0035), 0, 1, 0, 720);
		int end_param = start_param + 70;
		color.setHsb(ofMap(y, -300, 300, 0, 255), 230, 255);
		int line_start_index = this->line.getNumVertices();

		for (int param = start_param; param <= end_param; param++) {

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

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

			this->face.addColor(color);
			this->face.addColor(color);

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

			if (param > start_param) {

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

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

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

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

	this->cam.begin();
	ofRotateY(ofGetFrameNum() * 1.333333333333);

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

	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, len), -len * 0.5);
	}
	else if (param < 50) {

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

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

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

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

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

100

101

102

#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(30);

ofSetWindowTitle("openframeworks");

ofBackground(0);

ofSetLineWidth(2);

ofEnableDepthTest();

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

}

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

void ofApp::update() {

this->face.clear();

this->line.clear();

int len = 300;

int width = 50;

ofColor color;

for (int y = -300; y <= 300; y += width) {

int start_param = ofMap(ofNoise(y * 0.008, ofGetFrameNum() * 0.0035), 0, 1, 0, 720);

int end_param = start_param + 70;

color.setHsb(ofMap(y, -300, 300, 0, 255), 230, 255);

int line_start_index = this->line.getNumVertices();

for (int param = start_param; param <= end_param; param++) {

vector<glm::vec3> vertices;

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

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

this->face.addVertices(vertices);

this->line.addVertices(vertices);

this->face.addColor(color);

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

if (param > start_param) {

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

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

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

}

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

this->line.addIndex(line_start_index); this->line.addIndex(line_start_index + 1);

}

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

void ofApp::draw() {

this->cam.begin();

ofRotateY(ofGetFrameNum() * 1.333333333333);

this->face.draw();

this->line.drawWireframe();

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, len), -len * 0.5);

}

else if (param < 50) {

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

}

else if (param < 75) {

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

}

else {

return glm::vec2(-len, 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/Insta20220730

[ほしいものリスト]
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