プログラミング de 落描き – ページ 190 – クリエイティブ・コーディングによる生成物とソース

2022年10月10日

Colors. Draw by openFrameworks

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[ About ]
色。

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#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) {};

	ofMesh mesh;
};

#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) {};

ofMesh mesh;

};

#include "ofApp.h"

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

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

	ofBackground(255);

	int size = 10;
	for (int x = 30; x < 690; x += size) {

		for (int y = 30; y < 690; y += size) {

			int index = this->mesh.getNumVertices();

			this->mesh.addVertex(glm::vec3(x, y, 0));
			this->mesh.addVertex(glm::vec3(x + size, y, 0));
			this->mesh.addVertex(glm::vec3(x + size, y + size, 0));
			this->mesh.addVertex(glm::vec3(x, y + size, 0));

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

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

			this->mesh.addColor(ofColor(0));
			this->mesh.addColor(ofColor(0));
			this->mesh.addColor(ofColor(0));
			this->mesh.addColor(ofColor(0));
		}
	}
}

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

	ofSeedRandom(39);
	auto noise_seed = glm::vec4(ofRandom(1000), ofRandom(1000), ofRandom(1000), ofRandom(1000));

	auto noise_step = 0.001;
	auto frame_step = 0.03;

	for (int i = 0; i < this->mesh.getNumVertices(); i++) {

		auto vertex = this->mesh.getVertex(i);
		auto noise_value = glm::vec3(
			ofNoise(noise_seed.r, vertex.x * noise_step, vertex.y * noise_step + ofGetFrameNum() * frame_step),
			ofNoise(noise_seed.g, vertex.x * noise_step, vertex.y * noise_step + ofGetFrameNum() * frame_step),
			ofNoise(noise_seed.b, vertex.x * noise_step, vertex.y * noise_step + ofGetFrameNum() * frame_step));

		auto r = noise_value.r < 0.2 ? 0 : noise_value.r < 0.7 ? ofMap(noise_value.r, 0.2, 0.7, 0, 255) : 255;
		auto g = noise_value.g < 0.2 ? 0 : noise_value.g < 0.7 ? ofMap(noise_value.g, 0.2, 0.7, 0, 255) : 255;
		auto b = noise_value.b < 0.2 ? 0 : noise_value.b < 0.7 ? ofMap(noise_value.b, 0.2, 0.7, 0, 255) : 255;

		this->mesh.setColor(i, ofColor(r, g, b, 255));
	}
}

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

	this->mesh.draw();
}

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

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

#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(30);

ofSetWindowTitle("openFrameworks");

ofBackground(255);

int size = 10;

for (int x = 30; x < 690; x += size) {

for (int y = 30; y < 690; y += size) {

int index = this->mesh.getNumVertices();

this->mesh.addVertex(glm::vec3(x, y, 0));

this->mesh.addVertex(glm::vec3(x + size, y, 0));

this->mesh.addVertex(glm::vec3(x + size, y + size, 0));

this->mesh.addVertex(glm::vec3(x, y + size, 0));

this->mesh.addIndex(index + 0);

this->mesh.addIndex(index + 1);

this->mesh.addIndex(index + 2);

this->mesh.addIndex(index + 0);

this->mesh.addIndex(index + 2);

this->mesh.addIndex(index + 3);

this->mesh.addColor(ofColor(0));

}

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

void ofApp::update() {

ofSeedRandom(39);

auto noise_seed = glm::vec4(ofRandom(1000), ofRandom(1000), ofRandom(1000), ofRandom(1000));

auto noise_step = 0.001;

auto frame_step = 0.03;

for (int i = 0; i < this->mesh.getNumVertices(); i++) {

auto vertex = this->mesh.getVertex(i);

auto noise_value = glm::vec3(

ofNoise(noise_seed.r, vertex.x * noise_step, vertex.y * noise_step + ofGetFrameNum() * frame_step),

ofNoise(noise_seed.g, vertex.x * noise_step, vertex.y * noise_step + ofGetFrameNum() * frame_step),

ofNoise(noise_seed.b, vertex.x * noise_step, vertex.y * noise_step + ofGetFrameNum() * frame_step));

auto r = noise_value.r < 0.2 ? 0 : noise_value.r < 0.7 ? ofMap(noise_value.r, 0.2, 0.7, 0, 255) : 255;

auto g = noise_value.g < 0.2 ? 0 : noise_value.g < 0.7 ? ofMap(noise_value.g, 0.2, 0.7, 0, 255) : 255;

auto b = noise_value.b < 0.2 ? 0 : noise_value.b < 0.7 ? ofMap(noise_value.b, 0.2, 0.7, 0, 255) : 255;

this->mesh.setColor(i, ofColor(r, g, b, 255));

}

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

void ofApp::draw() {

this->mesh.draw();

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20221010

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2022年10月9日

Sand falls. Draw by openFrameworks

[ Video ]

[ About ]
砂が落ちる。

[ Source ]

#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) {};

	ofMesh mesh;
};

#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) {};

ofMesh mesh;

};

#include "ofApp.h"

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

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

	ofBackground(0);
	ofSetColor(255);

	ofNoFill();
	ofSetCircleResolution(120);
}

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

	ofSeedRandom(39);

	this->mesh.clear();
	int max_radius = 300;

	for (float deg = 0; deg < 360; deg += 0.2) {

		auto radius = max_radius - (int)(ofRandom(max_radius) + ofGetFrameNum() * ofRandom(2, 10)) % max_radius;
		this->mesh.addVertex(glm::vec3(radius * cos(deg * DEG_TO_RAD), radius * sin(deg * DEG_TO_RAD), 0));
		this->mesh.addColor(ofColor(255, radius > max_radius - 50 ? 255 : radius < 100 ? 0 : ofMap(radius, 100, max_radius - 50, 0, 255)));
	}
}

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

	ofTranslate(ofGetWindowSize() * 0.5);

	ofFill();
	for (int i = 0; i < this->mesh.getNumVertices(); i++) {

		ofSetColor(this->mesh.getColor(i));
		ofDrawCircle(this->mesh.getVertex(i), 1.5);
	}


	ofNoFill();
	ofSetColor(255);
	ofDrawCircle(glm::vec2(), 300);
}


//--------------------------------------------------------------
int main() {
	ofSetupOpenGL(720, 720, OF_WINDOW);
	ofRunApp(new ofApp());
}

#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(30);

ofSetWindowTitle("openFrameworks");

ofBackground(0);

ofSetColor(255);

ofNoFill();

ofSetCircleResolution(120);

}

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

void ofApp::update() {

ofSeedRandom(39);

this->mesh.clear();

int max_radius = 300;

for (float deg = 0; deg < 360; deg += 0.2) {

auto radius = max_radius - (int)(ofRandom(max_radius) + ofGetFrameNum() * ofRandom(2, 10)) % max_radius;

this->mesh.addVertex(glm::vec3(radius * cos(deg * DEG_TO_RAD), radius * sin(deg * DEG_TO_RAD), 0));

this->mesh.addColor(ofColor(255, radius > max_radius - 50 ? 255 : radius < 100 ? 0 : ofMap(radius, 100, max_radius - 50, 0, 255)));

}

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

void ofApp::draw() {

ofTranslate(ofGetWindowSize() * 0.5);

ofFill();

for (int i = 0; i < this->mesh.getNumVertices(); i++) {

ofSetColor(this->mesh.getColor(i));

ofDrawCircle(this->mesh.getVertex(i), 1.5);

}

ofNoFill();

ofSetColor(255);

ofDrawCircle(glm::vec2(), 300);

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20221009

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2022年10月8日

Scratch. Draw by openFrameworks

[ Video ]

[ About ]
うごめく掻き傷。

[ Source ]

#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;
	ofMesh mesh;
};

#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;

ofMesh mesh;

};

#include "ofApp.h"

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

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

	ofBackground(255, 25, 25);
	ofSetColor(0);
}

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

	this->mesh.clear();

	int size = 1;
	for (int x = 10; x <= ofGetWidth() - 10; x += size) {

		for (int y = 10; y <= ofGetHeight() - 10; y += size) {

			float deg = ofMap(ofNoise(x * 0.01, y * 0.01, ofGetFrameNum() * 0.03), 0, 1, -360, 360);
			this->mesh.addVertex(glm::vec3(x + size * 3 * cos(deg * DEG_TO_RAD), y + size * 3 * sin(deg * DEG_TO_RAD), 0));
		}
	}
}

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

	this->cam.begin();
	ofTranslate(ofGetWindowSize() * -0.5);

	this->mesh.drawVertices();

	this->cam.end();
}


//--------------------------------------------------------------
int main() {
	ofSetupOpenGL(720, 720, OF_WINDOW);
	ofRunApp(new ofApp());
}

#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(30);

ofSetWindowTitle("openFrameworks");

ofBackground(255, 25, 25);

ofSetColor(0);

}

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

void ofApp::update() {

this->mesh.clear();

int size = 1;

for (int x = 10; x <= ofGetWidth() - 10; x += size) {

for (int y = 10; y <= ofGetHeight() - 10; y += size) {

float deg = ofMap(ofNoise(x * 0.01, y * 0.01, ofGetFrameNum() * 0.03), 0, 1, -360, 360);

this->mesh.addVertex(glm::vec3(x + size * 3 * cos(deg * DEG_TO_RAD), y + size * 3 * sin(deg * DEG_TO_RAD), 0));

}

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

void ofApp::draw() {

this->cam.begin();

ofTranslate(ofGetWindowSize() * -0.5);

this->mesh.drawVertices();

this->cam.end();

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20221008

[ほしいものリスト]
Amazon

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