プログラミング de 落描き – ページ 438 – クリエイティブ・コーディングによる生成物とソース

2020年9月22日2020年9月22日

Shaky circle. Draw by openFrameworks

[ Video ]

[ About ]
ブレる円。

Shaky circle.

[ 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(239);
	ofSetLineWidth(2);
	ofNoFill();
	ofEnableBlendMode(ofBlendMode::OF_BLENDMODE_MULTIPLY);
}

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

	ofSeedRandom(39);
}

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

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

	vector<ofColor> color_list = { ofColor(255, 0, 0), ofColor(0, 255, 0), ofColor(0, 0, 255) };

	for (int x = -210; x <= 210; x += 210) {

		for (int y = -210; y <= 210; y += 210) {

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

				auto radius = 25 + i * 25;
				auto walker_location = glm::vec2(x, y) + glm::vec2(ofMap(ofNoise(ofRandom(1000), ofGetFrameNum() * 0.005), 0, 1, -100, 100), ofMap(ofNoise(ofRandom(1000), ofGetFrameNum() * 0.005), 0, 1, -100, 100));

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

					auto noise_seed = ofRandom(1000);

					ofSetColor(color_list[k]);
					ofBeginShape();
					for (int deg = 0; deg < 360; deg += 1) {

						auto location = glm::vec2(x, y) + glm::vec2(radius * cos(deg * DEG_TO_RAD), radius * sin(deg * DEG_TO_RAD));
						auto distance = glm::distance(location, walker_location);
						if (distance < radius) {

							auto noise_radius = ofMap(ofNoise(noise_seed, location.x * 0.035, location.y * 0.035, ofGetFrameNum() * 0.005), 0, 1, radius - 45, radius + 45);
							auto noise_location = glm::vec2(x, y) + glm::vec2(noise_radius * cos(deg * DEG_TO_RAD), noise_radius * sin(deg * DEG_TO_RAD));
							auto gap = location - noise_location;
							ofVertex(location + gap * ofMap(distance, 0, radius * 0.75, 1, 0));
						}
						else {

							ofVertex(location);
						}
					}
					ofEndShape(true);
				}
			}
		}
	}
}

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

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

#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(60);

ofSetWindowTitle("openframeworks");

ofBackground(239);

ofSetLineWidth(2);

ofNoFill();

ofEnableBlendMode(ofBlendMode::OF_BLENDMODE_MULTIPLY);

}

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

void ofApp::update() {

ofSeedRandom(39);

}

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

void ofApp::draw() {

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

vector<ofColor> color_list = { ofColor(255, 0, 0), ofColor(0, 255, 0), ofColor(0, 0, 255) };

for (int x = -210; x <= 210; x += 210) {

for (int y = -210; y <= 210; y += 210) {

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

auto radius = 25 + i * 25;

auto walker_location = glm::vec2(x, y) + glm::vec2(ofMap(ofNoise(ofRandom(1000), ofGetFrameNum() * 0.005), 0, 1, -100, 100), ofMap(ofNoise(ofRandom(1000), ofGetFrameNum() * 0.005), 0, 1, -100, 100));

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

auto noise_seed = ofRandom(1000);

ofSetColor(color_list[k]);

ofBeginShape();

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

auto location = glm::vec2(x, y) + glm::vec2(radius * cos(deg * DEG_TO_RAD), radius * sin(deg * DEG_TO_RAD));

auto distance = glm::distance(location, walker_location);

if (distance < radius) {

auto noise_radius = ofMap(ofNoise(noise_seed, location.x * 0.035, location.y * 0.035, ofGetFrameNum() * 0.005), 0, 1, radius - 45, radius + 45);

auto noise_location = glm::vec2(x, y) + glm::vec2(noise_radius * cos(deg * DEG_TO_RAD), noise_radius * sin(deg * DEG_TO_RAD));

auto gap = location - noise_location;

ofVertex(location + gap * ofMap(distance, 0, radius * 0.75, 1, 0));

}

else {

ofVertex(location);

}

ofEndShape(true);

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20200922

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2020年9月21日2020年9月21日

Arcs. Draw by openFrameworks

[ Video ]

[ About ]
Arcs.

[ 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 setRingToMesh(ofMesh& frame_target, glm::vec3 location, float radius, int deg_start, int deg_end);

	ofEasyCam cam;
	ofMesh frame;

	vector<glm::vec3> start_location_list;
	vector<glm::vec3> end_location_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 setRingToMesh(ofMesh& frame_target, glm::vec3 location, float radius, int deg_start, int deg_end);

ofEasyCam cam;

ofMesh frame;

vector<glm::vec3> start_location_list;

vector<glm::vec3> end_location_list;

};

#include "ofApp.h"

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

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

	ofBackground(239);
	ofSetLineWidth(2);

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

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

	ofSeedRandom(39);

	this->frame.clear();
	this->start_location_list.clear();
	this->end_location_list.clear();

	int deg_span = 30;
	for (int x = -230; x <= 230; x += 230) {

		for (int y = -230; y <= 230; y += 230) {

			for (int radius = 30; radius <= 90; radius += 15) {

				int deg_start = 0;
				int deg_end = 0;
				int tmp_deg = 0;
				auto noise_seed = ofRandom(1000);
				for (int deg = 0; deg < 360 + tmp_deg; deg += 1) {

					auto noise_value = ofNoise(glm::vec4(noise_seed, cos(deg * DEG_TO_RAD), sin(deg * DEG_TO_RAD), ofGetFrameNum() * 0.01));

					if (noise_value < 0.6) {

						deg_end = deg;

						if (deg == 0) {

							while (true) {

								tmp_deg -= 1;
								auto tmp_noise_value = ofNoise(glm::vec4(noise_seed, cos(tmp_deg * DEG_TO_RAD), sin(tmp_deg * DEG_TO_RAD), ofGetFrameNum() * 0.01));
								if (tmp_noise_value > 0.55 || tmp_deg < -360) { break; }
								deg_start = tmp_deg;
							}
						}
					}
					else {

						if (deg_start < deg_end) {

							this->setRingToMesh(this->frame, glm::vec3(x, y, 0), radius, deg_start, deg_end);
						}

						deg_start = deg;
						deg_end = deg;
					}
				}

				if (deg_start != deg_end) {

					this->setRingToMesh(this->frame, glm::vec3(x, y, 0), radius, deg_start, deg_end);
				}
			}
		}
	}
}

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

	this->cam.begin();

	ofSetColor(39);
	this->frame.drawWireframe();

	for (auto& location : this->end_location_list) {

		ofFill();
		ofSetColor(239);
		ofDrawCircle(location, 3);

		ofNoFill();
		ofSetColor(39);
		ofDrawCircle(location, 3);
	}

	for (auto& location : this->start_location_list) {

		ofFill();
		ofSetColor(39);
		ofDrawCircle(location, 3);
	}

	this->cam.end();
}

//--------------------------------------------------------------
void ofApp::setRingToMesh(ofMesh& frame_target, glm::vec3 location, float radius, int deg_start, int deg_end) {

	if (deg_start == deg_end) { return; }

	int index = frame_target.getNumVertices();

	for (int deg = deg_start; deg <= deg_end; deg += 1) {

		vector<glm::vec3> vertices;
		vertices.push_back(location + glm::vec3(radius * cos(deg * DEG_TO_RAD), radius * sin(deg * DEG_TO_RAD), 0));
		vertices.push_back(location + glm::vec3(radius * cos((deg + 1) * DEG_TO_RAD), radius * sin((deg + 1) * DEG_TO_RAD), 0));
	
		auto frame_index = frame_target.getNumVertices();

		frame_target.addVertices(vertices);
		frame_target.addIndex(frame_index + 0); frame_target.addIndex(frame_index + 1);

		if (deg == deg_start) {

			this->start_location_list.push_back(vertices.front());
		}

		if (deg == deg_end) {

			this->end_location_list.push_back(vertices.back());
		}
	}
}

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

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

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#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(60);

ofSetWindowTitle("openFrameworks");

ofBackground(239);

ofSetLineWidth(2);

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

}

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

void ofApp::update() {

ofSeedRandom(39);

this->frame.clear();

this->start_location_list.clear();

this->end_location_list.clear();

int deg_span = 30;

for (int x = -230; x <= 230; x += 230) {

for (int y = -230; y <= 230; y += 230) {

for (int radius = 30; radius <= 90; radius += 15) {

int deg_start = 0;

int deg_end = 0;

int tmp_deg = 0;

auto noise_seed = ofRandom(1000);

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

auto noise_value = ofNoise(glm::vec4(noise_seed, cos(deg * DEG_TO_RAD), sin(deg * DEG_TO_RAD), ofGetFrameNum() * 0.01));

if (noise_value < 0.6) {

deg_end = deg;

if (deg == 0) {

while (true) {

tmp_deg -= 1;

auto tmp_noise_value = ofNoise(glm::vec4(noise_seed, cos(tmp_deg * DEG_TO_RAD), sin(tmp_deg * DEG_TO_RAD), ofGetFrameNum() * 0.01));

if (tmp_noise_value > 0.55 || tmp_deg < -360) { break; }

deg_start = tmp_deg;

}

else {

if (deg_start < deg_end) {

this->setRingToMesh(this->frame, glm::vec3(x, y, 0), radius, deg_start, deg_end);

}

deg_start = deg;

deg_end = deg;

}

if (deg_start != deg_end) {

this->setRingToMesh(this->frame, glm::vec3(x, y, 0), radius, deg_start, deg_end);

}

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

void ofApp::draw() {

this->cam.begin();

ofSetColor(39);

this->frame.drawWireframe();

for (auto& location : this->end_location_list) {

ofFill();

ofSetColor(239);

ofDrawCircle(location, 3);

ofNoFill();

ofSetColor(39);

ofDrawCircle(location, 3);

}

for (auto& location : this->start_location_list) {

ofFill();

ofSetColor(39);

ofDrawCircle(location, 3);

}

this->cam.end();

}

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

void ofApp::setRingToMesh(ofMesh& frame_target, glm::vec3 location, float radius, int deg_start, int deg_end) {

if (deg_start == deg_end) { return; }

int index = frame_target.getNumVertices();

for (int deg = deg_start; deg <= deg_end; deg += 1) {

vector<glm::vec3> vertices;

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

vertices.push_back(location + glm::vec3(radius * cos((deg + 1) * DEG_TO_RAD), radius * sin((deg + 1) * DEG_TO_RAD), 0));

auto frame_index = frame_target.getNumVertices();

frame_target.addVertices(vertices);

frame_target.addIndex(frame_index + 0); frame_target.addIndex(frame_index + 1);

if (deg == deg_start) {

this->start_location_list.push_back(vertices.front());

}

if (deg == deg_end) {

this->end_location_list.push_back(vertices.back());

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20200921

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2020年9月20日2020年9月20日

Multicolored rectangle. Draw by openFrameworks

[ Video ]

[ About ]
マルチカラー四角形。

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

};

#include "ofApp.h"	

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

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

	ofBackground(239);
	ofSetColor(39);
	ofNoFill();
}

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

	ofSeedRandom(39);
}

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

	ofColor color;
	vector<int> hex_list = { 0xee6352, 0x59cd90, 0x3fa7d6, 0xfac05e, 0xf79d84 };
	vector<ofColor> color_list;
	for (auto hex : hex_list) {

		color.setHex(hex);
		color_list.push_back(color);
	}

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

	auto width = 60;
	auto color_flag = true;
	auto param_start = ofGetFrameNum() * 0.5;

	for (auto len = 100; len < ofGetWidth() - 100; len += width) {

		param_start += 10;
		int color_index = 0;
		for (auto param = param_start; param < param_start + 100; param += 20) {

			vector<glm::vec2> in;
			vector<glm::vec2> out;
			for (auto tmp_param = param; tmp_param <= param + 10; tmp_param++) {

				in.push_back(this->make_point(len, tmp_param));
				out.push_back(this->make_point(len + width, tmp_param));
			}

			reverse(out.begin(), out.end());

			ofFill();
			ofSetColor(color_list[color_index]);

			ofBeginShape();
			ofVertices(in);
			ofVertices(out);
			ofEndShape(true);

			ofNoFill();
			ofSetColor(239);

			ofBeginShape();
			ofVertices(in);
			ofVertices(out);
			ofEndShape(true);

			color_index++;
		}
	}
}

//--------------------------------------------------------------
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(60);

ofSetWindowTitle("openFrameworks");

ofBackground(239);

ofSetColor(39);

ofNoFill();

}

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

void ofApp::update() {

ofSeedRandom(39);

}

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

void ofApp::draw() {

ofColor color;

vector<int> hex_list = { 0xee6352, 0x59cd90, 0x3fa7d6, 0xfac05e, 0xf79d84 };

vector<ofColor> color_list;

for (auto hex : hex_list) {

color.setHex(hex);

color_list.push_back(color);

}

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

auto width = 60;

auto color_flag = true;

auto param_start = ofGetFrameNum() * 0.5;

for (auto len = 100; len < ofGetWidth() - 100; len += width) {

param_start += 10;

int color_index = 0;

for (auto param = param_start; param < param_start + 100; param += 20) {

vector<glm::vec2> in;

vector<glm::vec2> out;

for (auto tmp_param = param; tmp_param <= param + 10; tmp_param++) {

in.push_back(this->make_point(len, tmp_param));

out.push_back(this->make_point(len + width, tmp_param));

}

reverse(out.begin(), out.end());

ofFill();

ofSetColor(color_list[color_index]);

ofBeginShape();

ofVertices(in);

ofVertices(out);

ofEndShape(true);

ofNoFill();

ofSetColor(239);

ofBeginShape();

ofVertices(in);

ofVertices(out);

ofEndShape(true);

color_index++;

}

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

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/Insta20200920

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