rect – ページ 6 – プログラミング de 落描き

2021年12月28日

Lines on square. Draw by openFrameworks

[ Video ]

[ About ]
正方形の線を結ぶ。

Connect the square 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 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(0);
	ofSetLineWidth(2);
}

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

	ofSeedRandom(39);
}

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

	ofTranslate(ofGetWindowSize() * 0.5);

	int span = 200;
	for (int x = -span; x <= span; x += span) {

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

			ofPushMatrix();
			ofTranslate(x, y);

			for (int len = 50; len < 180; len += 30) {

				auto noise_seed = ofRandom(1000);
				for (int param = 100; param < 200; param += 1) {

					auto location = this->make_point(len, param);
					auto next_location = this->make_point(len, param + 1);

					auto noise_value = ofNoise(glm::vec4(noise_seed, this->make_point(120, param) * 0.0085, ofGetFrameNum() * 0.015));
					auto prev_noise_value = ofNoise(glm::vec4(noise_seed, this->make_point(120, param - 1) * 0.0085, ofGetFrameNum() * 0.015));
					auto next_noise_value = ofNoise(glm::vec4(noise_seed, this->make_point(120, param + 1) * 0.0085, ofGetFrameNum() * 0.015));

					if (noise_value > 0.5) {

						ofSetColor(255);
						ofDrawLine(location, next_location);

						if (prev_noise_value <= 0.5) {

							ofFill();
							ofDrawCircle(location, 4);
						}

						if (next_noise_value <= 0.5) {

							ofFill();
							ofSetColor(0);
							ofDrawCircle(next_location, 4);

							ofNoFill();
							ofSetColor(255);
							ofDrawCircle(next_location, 4);
						}
					}
				}
			}

			ofPopMatrix();
		}
	}
}

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

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#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(30);

ofSetWindowTitle("openFrameworks");

ofBackground(0);

ofSetLineWidth(2);

}

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

void ofApp::update() {

ofSeedRandom(39);

}

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

void ofApp::draw() {

ofTranslate(ofGetWindowSize() * 0.5);

int span = 200;

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

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

ofPushMatrix();

ofTranslate(x, y);

for (int len = 50; len < 180; len += 30) {

auto noise_seed = ofRandom(1000);

for (int param = 100; param < 200; param += 1) {

auto location = this->make_point(len, param);

auto next_location = this->make_point(len, param + 1);

auto noise_value = ofNoise(glm::vec4(noise_seed, this->make_point(120, param) * 0.0085, ofGetFrameNum() * 0.015));

auto prev_noise_value = ofNoise(glm::vec4(noise_seed, this->make_point(120, param - 1) * 0.0085, ofGetFrameNum() * 0.015));

auto next_noise_value = ofNoise(glm::vec4(noise_seed, this->make_point(120, param + 1) * 0.0085, ofGetFrameNum() * 0.015));

if (noise_value > 0.5) {

ofSetColor(255);

ofDrawLine(location, next_location);

if (prev_noise_value <= 0.5) {

ofFill();

ofDrawCircle(location, 4);

}

if (next_noise_value <= 0.5) {

ofFill();

ofSetColor(0);

ofDrawCircle(next_location, 4);

ofNoFill();

ofSetColor(255);

ofDrawCircle(next_location, 4);

}

ofPopMatrix();

}

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

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/Insta20211228

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2021年12月22日2021年12月22日

Super Square. Draw by openFrameworks

[ Video ]

[ about ]
radius + frameCountにするとアニメーションの方向が変わります。

If you set radius + frameCount, the direction of the animation will change.

[ 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) {};

	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) {};

ofMesh face, frame;

};

#include "ofApp.h"

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

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

	ofBackground(255);

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

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

	ofSeedRandom(39);

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

	float deg_span = 90;
	float len = 20;

	for (float radius = len; radius < 720; radius += 36) {

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

			auto noise_location = glm::vec2(cos(deg * DEG_TO_RAD), sin(deg * DEG_TO_RAD));
			auto prev_noise_location = glm::vec2(cos((deg - deg_span) * DEG_TO_RAD), sin((deg - deg_span) * DEG_TO_RAD));
			auto next_noise_location = glm::vec2(cos((deg + deg_span) * DEG_TO_RAD), sin((deg + deg_span) * DEG_TO_RAD));
			
			auto noise_value = ofNoise(glm::vec3(noise_location * 0.5, radius * 0.003 + ofGetFrameNum() * 0.075));
			auto prev_noise_value = ofNoise(glm::vec3(prev_noise_location * 0.5, radius * 0.003 + ofGetFrameNum() * 0.075));
			auto next_noise_value = ofNoise(glm::vec3(next_noise_location * 0.5, radius * 0.003 + ofGetFrameNum() * 0.075));

			if (noise_value > 0.5) {

				vector<glm::vec3> vertices;
				vertices.push_back(glm::vec3((radius + len * 0.5) * cos((deg + deg_span * 0.5) * DEG_TO_RAD), (radius + len * 0.5) * sin((deg + deg_span * 0.5) * DEG_TO_RAD), 0));
				vertices.push_back(glm::vec3((radius - len * 0.5) * cos((deg + deg_span * 0.5) * DEG_TO_RAD), (radius - len * 0.5) * sin((deg + deg_span * 0.5) * DEG_TO_RAD), 0));
				vertices.push_back(glm::vec3((radius - len * 0.5) * cos((deg - deg_span * 0.5) * DEG_TO_RAD), (radius - len * 0.5) * sin((deg - deg_span * 0.5) * DEG_TO_RAD), 0));
				vertices.push_back(glm::vec3((radius + len * 0.5) * cos((deg - deg_span * 0.5) * DEG_TO_RAD), (radius + len * 0.5) * sin((deg - deg_span * 0.5) * DEG_TO_RAD), 0));

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

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

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

				if (prev_noise_value <= 0.5) {

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

				if (next_noise_value <= 0.5) {

					this->frame.addIndex(this->frame.getNumVertices() - 3); this->frame.addIndex(this->frame.getNumVertices() - 4);
				}
			}
		}
	}
}

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

	ofTranslate(ofGetWindowSize() * 0.5);
	ofRotate(ofGetFrameNum());

	ofColor color;
	color.setHsb(ofGetFrameNum() % 255, 255, 0);
	
	ofSetColor(color);
	this->face.draw();

	ofSetColor(128);
	this->frame.draw();
}

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

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

#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(30);

ofSetWindowTitle("openFrameworks");

ofBackground(255);

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

}

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

void ofApp::update() {

ofSeedRandom(39);

this->face.clear();

this->frame.clear();

float deg_span = 90;

float len = 20;

for (float radius = len; radius < 720; radius += 36) {

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

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

auto prev_noise_location = glm::vec2(cos((deg - deg_span) * DEG_TO_RAD), sin((deg - deg_span) * DEG_TO_RAD));

auto next_noise_location = glm::vec2(cos((deg + deg_span) * DEG_TO_RAD), sin((deg + deg_span) * DEG_TO_RAD));

auto noise_value = ofNoise(glm::vec3(noise_location * 0.5, radius * 0.003 + ofGetFrameNum() * 0.075));

auto prev_noise_value = ofNoise(glm::vec3(prev_noise_location * 0.5, radius * 0.003 + ofGetFrameNum() * 0.075));

auto next_noise_value = ofNoise(glm::vec3(next_noise_location * 0.5, radius * 0.003 + ofGetFrameNum() * 0.075));

if (noise_value > 0.5) {

vector<glm::vec3> vertices;

vertices.push_back(glm::vec3((radius + len * 0.5) * cos((deg + deg_span * 0.5) * DEG_TO_RAD), (radius + len * 0.5) * sin((deg + deg_span * 0.5) * DEG_TO_RAD), 0));

vertices.push_back(glm::vec3((radius - len * 0.5) * cos((deg + deg_span * 0.5) * DEG_TO_RAD), (radius - len * 0.5) * sin((deg + deg_span * 0.5) * DEG_TO_RAD), 0));

vertices.push_back(glm::vec3((radius - len * 0.5) * cos((deg - deg_span * 0.5) * DEG_TO_RAD), (radius - len * 0.5) * sin((deg - deg_span * 0.5) * DEG_TO_RAD), 0));

vertices.push_back(glm::vec3((radius + len * 0.5) * cos((deg - deg_span * 0.5) * DEG_TO_RAD), (radius + len * 0.5) * sin((deg - deg_span * 0.5) * DEG_TO_RAD), 0));

this->face.addVertices(vertices);

this->frame.addVertices(vertices);

this->face.addTriangle(this->face.getNumVertices() - 1, this->face.getNumVertices() - 2, this->face.getNumVertices() - 3);

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

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

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

if (prev_noise_value <= 0.5) {

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

}

if (next_noise_value <= 0.5) {

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

}

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

void ofApp::draw() {

ofTranslate(ofGetWindowSize() * 0.5);

ofRotate(ofGetFrameNum());

ofColor color;

color.setHsb(ofGetFrameNum() % 255, 255, 0);

ofSetColor(color);

this->face.draw();

ofSetColor(128);

this->frame.draw();

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20211222

[ほしいものリスト]
Amazon

[ Sponsor Link ]

2021年11月13日

Mixing squares and circles. Draw by openFrameworks

[ Video ]

[ About ]
ノイズの値で四角形と円をミックスする。

Mix squares and circles with noise values.

[ 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(60);
	ofSetWindowTitle("openframeworks");

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

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

}

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

	this->cam.begin();

	int len = 100;
	int width = len * 0.15;

	for (int x = -len * 1.2; x <= len * 1.2; x += len * 1.2) {

		for (int y = -len * 1.2; y <= len * 1.2; y += len * 1.2) {

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

			for (int z = -len; z <= len; z += width) {

				ofMesh mesh, frame;
				frame.setMode(ofPrimitiveMode::OF_PRIMITIVE_LINES);
				for (int param = 0; param <= 100; param++) {

					int deg = param * 3.6 - 135;
					auto noise_value = ofNoise(x + cos(deg * DEG_TO_RAD) * 0.15, y + sin(deg * DEG_TO_RAD) * 0.15, z * 0.005, ofGetFrameNum() * 0.008);

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

						vertices.push_back(glm::vec3(this->make_point(len, param), z + width * 0.5));
						vertices.push_back(glm::vec3(this->make_point(len, param), z - 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), z + width * 0.5));
						vertices.push_back(glm::vec3(len * 0.4 * cos(deg * DEG_TO_RAD), len * 0.4 * sin(deg * DEG_TO_RAD), z - width * 0.5));
					}

					mesh.addVertices(vertices);
					frame.addVertices(vertices);

					int index = mesh.getNumVertices() - 1;
					if (param > 0) {

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

						frame.addIndex(index); frame.addIndex(index - 2);
						frame.addIndex(index - 1); frame.addIndex(index - 3);
					}
				}

				ofSetColor(0);
				mesh.draw();

				ofSetColor(255);
				frame.drawWireframe();
			}

			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());
}

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103

104

105

106

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108

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110

#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(60);

ofSetWindowTitle("openframeworks");

ofBackground(0);

ofSetLineWidth(2);

ofEnableDepthTest();

}

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

void ofApp::update() {

}

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

void ofApp::draw() {

this->cam.begin();

int len = 100;

int width = len * 0.15;

for (int x = -len * 1.2; x <= len * 1.2; x += len * 1.2) {

for (int y = -len * 1.2; y <= len * 1.2; y += len * 1.2) {

ofPushMatrix();

ofTranslate(x, y, 0);

for (int z = -len; z <= len; z += width) {

ofMesh mesh, frame;

frame.setMode(ofPrimitiveMode::OF_PRIMITIVE_LINES);

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

int deg = param * 3.6 - 135;

auto noise_value = ofNoise(x + cos(deg * DEG_TO_RAD) * 0.15, y + sin(deg * DEG_TO_RAD) * 0.15, z * 0.005, ofGetFrameNum() * 0.008);

vector<glm::vec3> vertices;

if (noise_value > 0.5) {

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

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

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

}

mesh.addVertices(vertices);

frame.addVertices(vertices);

int index = mesh.getNumVertices() - 1;

if (param > 0) {

mesh.addIndex(index); mesh.addIndex(index - 2); mesh.addIndex(index - 3);

mesh.addIndex(index); mesh.addIndex(index - 1); mesh.addIndex(index - 3);

frame.addIndex(index); frame.addIndex(index - 2);

frame.addIndex(index - 1); frame.addIndex(index - 3);

}

ofSetColor(0);

mesh.draw();

ofSetColor(255);

frame.drawWireframe();

}

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/Insta20211113

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