プログラミング de 落描き – ページ 756 – クリエイティブ・コーディングによる生成物とソース

2019年4月26日2019年4月26日

Divide rectangle. openFrameworks

[ Video ]

[ About ]
「数学から創るジェネラティブアート」のサンプルDivRectを引用。時間経過でパラメータが変化

Divide rectangle.

[ Source ]
※ ランダムでの色付け処理がゴチャっとしてたので除いてあります。必要な方おりましたら連絡下さい。

#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) {};

	void draw_div_rect(glm::vec2 draw_location, int a, int b);
};

#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) {};

void draw_div_rect(glm::vec2 draw_location, int a, int b);

};

#include "ofApp.h"	

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

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

	ofBackground(239);
	ofSetColor(39);
	ofSetLineWidth(3);
	ofNoFill();
}

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

	ofSeedRandom(39);
}

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

	int span = 180;
	for (int x = span * 0.5; x < ofGetWidth(); x += span) {

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

			int a = ofMap(ofNoise(ofRandom(100), ofGetFrameNum() * 0.005), 0, 1, 2, 12);
			int b = ofMap(ofNoise(ofRandom(100), ofGetFrameNum() * 0.005), 0, 1, 2, 12);
			this->draw_div_rect(glm::vec2(x, y), a, b);
		}
	}
}

//--------------------------------------------------------------
void ofApp::draw_div_rect(glm::vec2 draw_location, int a, int b) {

	// 数学から創るジェネラティブアート P.51

	auto scale = 13;
	auto width = a * scale;
	auto height = b * scale;
	auto length = height;
	auto location = glm::vec2();
	auto count = 0;

	ofPushMatrix();
	ofTranslate(draw_location.x - width * 0.5, draw_location.y - height * 0.5);

	while (length > 0) {

		if (count++ % 2 == 0) {

			while (location.x + length <= width) {

				ofDrawRectangle(location, length, length);
				location.x += length;
			}
			length = width - location.x;
		}
		else {

			while (location.y + length <= height) {

				ofDrawRectangle(location, length, length);
				location.y += length;
			}
			length = height - location.y;
		}
	}

	ofPopMatrix();
}

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

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

#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(60);

ofSetWindowTitle("openFrameworks");

ofBackground(239);

ofSetColor(39);

ofSetLineWidth(3);

ofNoFill();

}

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

void ofApp::update() {

ofSeedRandom(39);

}

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

void ofApp::draw() {

int span = 180;

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

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

int a = ofMap(ofNoise(ofRandom(100), ofGetFrameNum() * 0.005), 0, 1, 2, 12);

int b = ofMap(ofNoise(ofRandom(100), ofGetFrameNum() * 0.005), 0, 1, 2, 12);

this->draw_div_rect(glm::vec2(x, y), a, b);

}

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

void ofApp::draw_div_rect(glm::vec2 draw_location, int a, int b) {

// 数学から創るジェネラティブアート P.51

auto scale = 13;

auto width = a * scale;

auto height = b * scale;

auto length = height;

auto location = glm::vec2();

auto count = 0;

ofPushMatrix();

ofTranslate(draw_location.x - width * 0.5, draw_location.y - height * 0.5);

while (length > 0) {

if (count++ % 2 == 0) {

while (location.x + length <= width) {

ofDrawRectangle(location, length, length);

location.x += length;

}

length = width - location.x;

}

else {

while (location.y + length <= height) {

ofDrawRectangle(location, length, length);

location.y += length;

}

length = height - location.y;

}

ofPopMatrix();

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20190426

2019年4月25日2019年4月25日

Piece of sphere. openFrameworks

[ Video ]

[ About ]
球体の一片

Piece of sphere.

[ 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) {};

	vector<ofMeshFace> triangles;
	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) {};

vector<ofMeshFace> triangles;

ofEasyCam cam;

};

#include "ofApp.h"	

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

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

	ofBackground(239);
	ofSetColor(39);
	ofEnableDepthTest();
	ofSetLineWidth(2);

	auto ico_sphere = ofIcoSpherePrimitive(150, 2);
	this->triangles = ico_sphere.getMesh().getUniqueFaces();
}

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

}

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

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

	for (auto& triangle : this->triangles) {

		glm::vec3 avg = (triangle.getVertex(0) + triangle.getVertex(1) + triangle.getVertex(2)) / 3;
		auto noise_value = ofNoise(avg.x * 0.0005, avg.y * 0.0005, avg.z + 0.0005, ofGetFrameNum() * 0.005);
		auto tmp_radius = 150.f;
		auto rotate = 0.f;
		if (noise_value >= 0.75) {
		
			tmp_radius += ofMap(noise_value, 0.75, 1, 0, 300);
			rotate = ofMap(noise_value, 0.75, 1, 0, 360 * 3);
		}
		auto tmp_avg = glm::normalize(avg) * tmp_radius;
		
		ofPushMatrix();
		ofTranslate(tmp_avg);
		ofRotateX(rotate);
		ofRotateY(rotate);

		vector<glm::vec3> vertices;
		vector<glm::vec3> fill_vertices;
		for (int j = 0; j < 3; j++) {

			glm::vec3 location = glm::vec3(triangle.getVertex(j).x, triangle.getVertex(j).y, triangle.getVertex(j).z) - avg;
			vertices.push_back(location);
			fill_vertices.push_back(location * 0.99);
		}

		ofFill();
		ofSetColor(239);

		ofBeginShape();
		ofVertices(fill_vertices);
		ofEndShape(true);

		ofNoFill();
		ofSetColor(39);

		ofBeginShape();
		ofVertices(vertices);
		ofEndShape(true);

		ofPopMatrix();
	}

	this->cam.end();
}

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

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

#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(60);

ofSetWindowTitle("openFrameworks");

ofBackground(239);

ofSetColor(39);

ofEnableDepthTest();

ofSetLineWidth(2);

auto ico_sphere = ofIcoSpherePrimitive(150, 2);

this->triangles = ico_sphere.getMesh().getUniqueFaces();

}

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

void ofApp::update() {

}

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

void ofApp::draw() {

this->cam.begin();

ofRotateY(ofGetFrameNum());

for (auto& triangle : this->triangles) {

glm::vec3 avg = (triangle.getVertex(0) + triangle.getVertex(1) + triangle.getVertex(2)) / 3;

auto noise_value = ofNoise(avg.x * 0.0005, avg.y * 0.0005, avg.z + 0.0005, ofGetFrameNum() * 0.005);

auto tmp_radius = 150.f;

auto rotate = 0.f;

if (noise_value >= 0.75) {

tmp_radius += ofMap(noise_value, 0.75, 1, 0, 300);

rotate = ofMap(noise_value, 0.75, 1, 0, 360 * 3);

}

auto tmp_avg = glm::normalize(avg) * tmp_radius;

ofPushMatrix();

ofTranslate(tmp_avg);

ofRotateX(rotate);

ofRotateY(rotate);

vector<glm::vec3> vertices;

vector<glm::vec3> fill_vertices;

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

glm::vec3 location = glm::vec3(triangle.getVertex(j).x, triangle.getVertex(j).y, triangle.getVertex(j).z) - avg;

vertices.push_back(location);

fill_vertices.push_back(location * 0.99);

}

ofFill();

ofSetColor(239);

ofBeginShape();

ofVertices(fill_vertices);

ofEndShape(true);

ofNoFill();

ofSetColor(39);

ofBeginShape();

ofVertices(vertices);

ofEndShape(true);

ofPopMatrix();

}

this->cam.end();

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20190425

2019年4月24日2019年4月24日

Plot two-demensional Perlin noise in the alphabet. openFrameworks

[ Video ]

[ About ]
2次元パーリンノイズをアルファベットでプロット

Plot two-dimensional perlin noise in the alphabet.

[ 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) {};

	ofTrueTypeFont font;
};

#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) {};

ofTrueTypeFont font;

};

#include "ofApp.h"	

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

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

	ofBackground(239);
	ofSetColor(39);

	this->font.loadFont("fonts/Kazesawa-Bold.ttf", 15, true, true, true);
}

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

}

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

	for (int x = 0; x < ofGetWidth(); x += 15) {

		for (int y = 15; y <= ofGetHeight(); y += 15) {

			char noise_value = ofMap(ofNoise(x * 0.008, y * 0.008, ofGetFrameNum() * 0.003), 0, 1, 45, 110);
			if (noise_value >= 'A' && noise_value <= 'Z') {
			
				this->font.drawString({ noise_value }, x, y);
			}
		}
	}
}

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

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

#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(60);

ofSetWindowTitle("openFrameworks");

ofBackground(239);

ofSetColor(39);

this->font.loadFont("fonts/Kazesawa-Bold.ttf", 15, true, true, true);

}

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

void ofApp::update() {

}

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

void ofApp::draw() {

for (int x = 0; x < ofGetWidth(); x += 15) {

for (int y = 15; y <= ofGetHeight(); y += 15) {

char noise_value = ofMap(ofNoise(x * 0.008, y * 0.008, ofGetFrameNum() * 0.003), 0, 1, 45, 110);

if (noise_value >= 'A' && noise_value <= 'Z') {

this->font.drawString({ noise_value }, x, y);

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20190424

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