openframeworks – ページ 72 – プログラミング de 落描き

2023年2月12日

Change color. Draw by openFrameworks

[ Video ]

[ About ]
色を変える。

[ 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) {};

	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 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) {};

ofEasyCam cam;

};

#include "ofApp.h"	

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

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

	ofBackground(0);
	ofSetColor(255);
}

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

	ofSeedRandom(39);

	if (ofGetFrameNum() % 240 < 60) {

		ofBackground(ofMap(ofGetFrameNum() % 240, 0, 60, 0, 255));
		ofSetColor(ofMap(ofGetFrameNum() % 240, 0, 60, 255, 0));
	}
	
	if(ofGetFrameNum() % 240 > 120 && ofGetFrameNum() % 240 < 180) {

		ofBackground(ofMap(ofGetFrameNum() % 240, 120, 180, 255, 0));
		ofSetColor(ofMap(ofGetFrameNum() % 240, 120, 180, 0, 255));
	}
}

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

	this->cam.begin();

	for (int i = 0; i < 200; i++) {

		auto x = ofRandom(-600, 600);
		auto y = ofRandom(-600, 600);
		auto z = (int)(ofRandom(1200) + ofGetFrameNum() * 20) % 1200 - 600;

		ofDrawLine(glm::vec3(x, y, z), glm::vec3(x, y, z - 30));
	}

	this->cam.end();
}

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

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

#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(60);

ofSetWindowTitle("openFrameworks");

ofBackground(0);

ofSetColor(255);

}

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

void ofApp::update() {

ofSeedRandom(39);

if (ofGetFrameNum() % 240 < 60) {

ofBackground(ofMap(ofGetFrameNum() % 240, 0, 60, 0, 255));

ofSetColor(ofMap(ofGetFrameNum() % 240, 0, 60, 255, 0));

}

if(ofGetFrameNum() % 240 > 120 && ofGetFrameNum() % 240 < 180) {

ofBackground(ofMap(ofGetFrameNum() % 240, 120, 180, 255, 0));

ofSetColor(ofMap(ofGetFrameNum() % 240, 120, 180, 0, 255));

}

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

void ofApp::draw() {

this->cam.begin();

for (int i = 0; i < 200; i++) {

auto x = ofRandom(-600, 600);

auto y = ofRandom(-600, 600);

auto z = (int)(ofRandom(1200) + ofGetFrameNum() * 20) % 1200 - 600;

ofDrawLine(glm::vec3(x, y, z), glm::vec3(x, y, z - 30));

}

this->cam.end();

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20230212

2023年2月11日

Circles on circle. Draw by openFrameworks

[ Video ]

[ About ]
円の上の円。

[ 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 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(30);
	ofSetWindowTitle("openFrameworks");

	ofBackground(0);
	ofSetColor(255);
}

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

}

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

	ofTranslate(ofGetWindowSize() * 0.5);

	int radius = 230;
	int deg_span = 6;

	int mini_radius = 0;
	for (int radius = 60; radius <= 300; ) {

		ofFill();
		int mini_radius = (radius * 2 * PI) / 360 * deg_span;
		for (int deg = 0; deg < 360; deg += deg_span) {

			auto base_location = glm::vec2(cos(deg * DEG_TO_RAD) * 100, sin(deg * DEG_TO_RAD) * 100);
			auto noise_value = ofNoise(glm::vec3(base_location * 0.005, ofGetFrameNum() * 0.0075));
			auto noise_radius = ofMap(noise_value, 0, 1, radius * 0.75, radius * 1.25);

			ofDrawCircle(noise_radius * cos(deg * DEG_TO_RAD), noise_radius * sin(deg * DEG_TO_RAD), mini_radius * 0.4);
		}

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

			auto base_location = glm::vec2(cos(deg * DEG_TO_RAD) * 100, sin(deg * DEG_TO_RAD) * 100);
			auto noise_value = ofNoise(glm::vec3(base_location * 0.005, ofGetFrameNum() * 0.0075));
			auto noise_radius = ofMap(noise_value, 0, 1, radius * 0.75, radius * 1.25);

			ofVertex(glm::vec2((noise_radius + mini_radius * 1) * cos(deg * DEG_TO_RAD), (noise_radius + mini_radius * 1) * sin(deg * DEG_TO_RAD)));
		}
		ofEndShape(true);

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

			auto base_location = glm::vec2(cos(deg * DEG_TO_RAD) * 100, sin(deg * DEG_TO_RAD) * 100);
			auto noise_value = ofNoise(glm::vec3(base_location * 0.005, ofGetFrameNum() * 0.0075));
			auto noise_radius = ofMap(noise_value, 0, 1, radius * 0.75, radius * 1.25);

			ofVertex(glm::vec2((noise_radius - mini_radius * 1) * cos(deg * DEG_TO_RAD), (noise_radius - mini_radius * 1) * sin(deg * DEG_TO_RAD)));
		}
		ofEndShape(true);

		radius += mini_radius * 2;

	}
}

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

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

#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(30);

ofSetWindowTitle("openFrameworks");

ofBackground(0);

ofSetColor(255);

}

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

void ofApp::update() {

}

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

void ofApp::draw() {

ofTranslate(ofGetWindowSize() * 0.5);

int radius = 230;

int deg_span = 6;

int mini_radius = 0;

for (int radius = 60; radius <= 300; ) {

ofFill();

int mini_radius = (radius * 2 * PI) / 360 * deg_span;

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

auto base_location = glm::vec2(cos(deg * DEG_TO_RAD) * 100, sin(deg * DEG_TO_RAD) * 100);

auto noise_value = ofNoise(glm::vec3(base_location * 0.005, ofGetFrameNum() * 0.0075));

auto noise_radius = ofMap(noise_value, 0, 1, radius * 0.75, radius * 1.25);

ofDrawCircle(noise_radius * cos(deg * DEG_TO_RAD), noise_radius * sin(deg * DEG_TO_RAD), mini_radius * 0.4);

}

ofNoFill();

ofBeginShape();

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

auto base_location = glm::vec2(cos(deg * DEG_TO_RAD) * 100, sin(deg * DEG_TO_RAD) * 100);

auto noise_value = ofNoise(glm::vec3(base_location * 0.005, ofGetFrameNum() * 0.0075));

auto noise_radius = ofMap(noise_value, 0, 1, radius * 0.75, radius * 1.25);

ofVertex(glm::vec2((noise_radius + mini_radius * 1) * cos(deg * DEG_TO_RAD), (noise_radius + mini_radius * 1) * sin(deg * DEG_TO_RAD)));

}

ofEndShape(true);

ofBeginShape();

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

auto base_location = glm::vec2(cos(deg * DEG_TO_RAD) * 100, sin(deg * DEG_TO_RAD) * 100);

auto noise_value = ofNoise(glm::vec3(base_location * 0.005, ofGetFrameNum() * 0.0075));

auto noise_radius = ofMap(noise_value, 0, 1, radius * 0.75, radius * 1.25);

ofVertex(glm::vec2((noise_radius - mini_radius * 1) * cos(deg * DEG_TO_RAD), (noise_radius - mini_radius * 1) * sin(deg * DEG_TO_RAD)));

}

ofEndShape(true);

radius += mini_radius * 2;

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20230211

2023年2月10日

Triangles. Draw by openFrameworks

[ Video ]

[ About ]
三角形ず。

[ 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(30);
	ofSetWindowTitle("openFrameworks");

	ofBackground(255);
	ofSetColor(0);
}

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

}

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

	ofTranslate(ofGetWindowSize() * 0.5);

	int radius = 15;
	for (int x = -300; x <= 300; x += 30) {

		for (int y = -300; y <= 300; y += 30) {

			if (abs(x) <= 60 && abs(y) <= 60) { continue; }

			ofPushMatrix();
			ofTranslate(glm::vec2(x, y));

			auto noise_param = abs(x) > abs(y) ? abs(x) : abs(y);
			auto noise_value = ofNoise(noise_param * 0.005 - ofGetFrameNum() * 0.01);

			auto deg_start = atan2(-y, -x) * RAD_TO_DEG;
			if(noise_value > 0.4 && noise_value < 0.6){
			
				deg_start += ofMap(noise_value, 0.4, 0.6, 0, 360);
			}

			ofBeginShape();
			for (int deg = deg_start; deg < deg_start + 360; deg += 120){

				ofVertex(radius * cos(deg * DEG_TO_RAD), radius * sin(deg * DEG_TO_RAD));
			}
			ofEndShape(true);

			ofPopMatrix();
		}
	}

}

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

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

#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(30);

ofSetWindowTitle("openFrameworks");

ofBackground(255);

ofSetColor(0);

}

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

void ofApp::update() {

}

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

void ofApp::draw() {

ofTranslate(ofGetWindowSize() * 0.5);

int radius = 15;

for (int x = -300; x <= 300; x += 30) {

for (int y = -300; y <= 300; y += 30) {

if (abs(x) <= 60 && abs(y) <= 60) { continue; }

ofPushMatrix();

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

auto noise_param = abs(x) > abs(y) ? abs(x) : abs(y);

auto noise_value = ofNoise(noise_param * 0.005 - ofGetFrameNum() * 0.01);

auto deg_start = atan2(-y, -x) * RAD_TO_DEG;

if(noise_value > 0.4 && noise_value < 0.6){

deg_start += ofMap(noise_value, 0.4, 0.6, 0, 360);

}

ofBeginShape();

for (int deg = deg_start; deg < deg_start + 360; deg += 120){

ofVertex(radius * cos(deg * DEG_TO_RAD), radius * sin(deg * DEG_TO_RAD));

}

ofEndShape(true);

ofPopMatrix();

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20230210

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