noise – ページ 367 – プログラミング de 落描き

2018年7月20日2018年7月20日

Segment circle. openFrameworks

[ Video ]

[ About ]
円を分割して、高さはパーリンノイズで変化させました。

I draw segmented circle. And height is determined by Perlin noise.

[ 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) {};

	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) {};

ofEasyCam cam;

};

#include "ofApp.h"

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

	ofSetFrameRate(60);
	ofSetWindowTitle("Insta");

	ofBackground(39);
	ofEnableDepthTest();
}

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

}

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

	int radius_span = 50;
	int deg_span = 10;

	this->cam.begin();

	for (int radius = radius_span; radius < 360; radius += radius_span) {

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

			ofPoint noise_point((radius + radius_span * 0.5) * cos((deg + deg_span * 0.5) * DEG_TO_RAD), (radius + radius_span * 0.5) * sin((deg + deg_span * 0.5) * DEG_TO_RAD));
			float noise_value = ofNoise(noise_point.x * 0.005, noise_point.y * 0.005, ofGetFrameNum() * 0.005);
			int z = noise_value * radius;

			ofColor body_color(ofMap(noise_value, 0, 1, 39, 255));
			ofSetColor(body_color);

			ofPoint p1(radius * cos(deg * DEG_TO_RAD), radius * sin(deg * DEG_TO_RAD), z);
			ofPoint p2(radius * cos((deg + deg_span) * DEG_TO_RAD), radius * sin((deg + deg_span) * DEG_TO_RAD), z);
			ofPoint p3((radius + radius_span) * cos((deg + deg_span) * DEG_TO_RAD), (radius + radius_span) * sin((deg + deg_span) * DEG_TO_RAD), z);
			ofPoint p4((radius + radius_span) * cos(deg * DEG_TO_RAD), (radius + radius_span) * sin(deg * DEG_TO_RAD), z);
		
			ofBeginShape();
			ofVertex(p1);
			ofVertex(p2);
			ofVertex(p3);
			ofVertex(p4);
			ofEndShape(true);

			ofBeginShape();
			ofVertex(p1);
			ofVertex(p2);
			ofVertex(p2 - ofPoint(0, 0, z));
			ofVertex(p1 - ofPoint(0, 0, z));
			ofEndShape(true);

			ofBeginShape();
			ofVertex(p2);
			ofVertex(p3);
			ofVertex(p3 - ofPoint(0, 0, z));
			ofVertex(p2 - ofPoint(0, 0, z));
			ofEndShape(true);

			ofBeginShape();
			ofVertex(p3);
			ofVertex(p4);
			ofVertex(p4 - ofPoint(0, 0, z));
			ofVertex(p3 - ofPoint(0, 0, z));
			ofEndShape(true);

			ofBeginShape();
			ofVertex(p1);
			ofVertex(p4);
			ofVertex(p4 - ofPoint(0, 0, z));
			ofVertex(p1 - ofPoint(0, 0, z));
			ofEndShape(true);
		}
	}

	this->cam.end();
}

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

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

#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(60);

ofSetWindowTitle("Insta");

ofBackground(39);

ofEnableDepthTest();

}

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

void ofApp::update() {

}

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

void ofApp::draw() {

int radius_span = 50;

int deg_span = 10;

this->cam.begin();

for (int radius = radius_span; radius < 360; radius += radius_span) {

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

ofPoint noise_point((radius + radius_span * 0.5) * cos((deg + deg_span * 0.5) * DEG_TO_RAD), (radius + radius_span * 0.5) * sin((deg + deg_span * 0.5) * DEG_TO_RAD));

float noise_value = ofNoise(noise_point.x * 0.005, noise_point.y * 0.005, ofGetFrameNum() * 0.005);

int z = noise_value * radius;

ofColor body_color(ofMap(noise_value, 0, 1, 39, 255));

ofSetColor(body_color);

ofPoint p1(radius * cos(deg * DEG_TO_RAD), radius * sin(deg * DEG_TO_RAD), z);

ofPoint p2(radius * cos((deg + deg_span) * DEG_TO_RAD), radius * sin((deg + deg_span) * DEG_TO_RAD), z);

ofPoint p3((radius + radius_span) * cos((deg + deg_span) * DEG_TO_RAD), (radius + radius_span) * sin((deg + deg_span) * DEG_TO_RAD), z);

ofPoint p4((radius + radius_span) * cos(deg * DEG_TO_RAD), (radius + radius_span) * sin(deg * DEG_TO_RAD), z);

ofBeginShape();

ofVertex(p1);

ofVertex(p2);

ofVertex(p3);

ofVertex(p4);

ofEndShape(true);

ofBeginShape();

ofVertex(p1);

ofVertex(p2);

ofVertex(p2 - ofPoint(0, 0, z));

ofVertex(p1 - ofPoint(0, 0, z));

ofEndShape(true);

ofBeginShape();

ofVertex(p2);

ofVertex(p3);

ofVertex(p3 - ofPoint(0, 0, z));

ofVertex(p2 - ofPoint(0, 0, z));

ofEndShape(true);

ofBeginShape();

ofVertex(p3);

ofVertex(p4);

ofVertex(p4 - ofPoint(0, 0, z));

ofVertex(p3 - ofPoint(0, 0, z));

ofEndShape(true);

ofBeginShape();

ofVertex(p1);

ofVertex(p4);

ofVertex(p4 - ofPoint(0, 0, z));

ofVertex(p1 - ofPoint(0, 0, z));

ofEndShape(true);

}

this->cam.end();

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20180720

2018年7月17日2018年7月17日

Random walking square. openFrameworks

[ Video ]

[ About ]
Noise関数を使ったランダムウォーク

Random walk using Perlin noise.

[ 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("Insta");

	ofBackground(39);
	ofEnableBlendMode(ofBlendMode::OF_BLENDMODE_ADD);
}

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

	ofSeedRandom(39);
}

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

	int rect_size = 36;
	for (int i = 0; i < 64; i++) {

		ofColor rect_color;
		rect_color.setHsb(ofRandom(255), 200, 255);
		ofSetColor(rect_color);

		int x = ofNoise(ofRandom(100), ofGetFrameNum() * 0.003) * ofGetWidth() / rect_size;
		int y = ofNoise(ofRandom(100, 200), ofGetFrameNum() * 0.003) * ofGetHeight() / rect_size;

		x *= rect_size;
		y *= rect_size;

		ofPoint point(x, y);
		ofDrawRectangle(point, rect_size, rect_size);
	}
}

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

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

#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(60);

ofSetWindowTitle("Insta");

ofBackground(39);

ofEnableBlendMode(ofBlendMode::OF_BLENDMODE_ADD);

}

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

void ofApp::update() {

ofSeedRandom(39);

}

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

void ofApp::draw() {

int rect_size = 36;

for (int i = 0; i < 64; i++) {

ofColor rect_color;

rect_color.setHsb(ofRandom(255), 200, 255);

ofSetColor(rect_color);

int x = ofNoise(ofRandom(100), ofGetFrameNum() * 0.003) * ofGetWidth() / rect_size;

int y = ofNoise(ofRandom(100, 200), ofGetFrameNum() * 0.003) * ofGetHeight() / rect_size;

x *= rect_size;

y *= rect_size;

ofPoint point(x, y);

ofDrawRectangle(point, rect_size, rect_size);

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20180717

2018年7月16日

Incomplete squares openFrameworks

[ Video ]

[ About ]
一部だけ描写した正方形を重ねてみました。

Incomplete squrees.

[ 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) {};

	// make method
	ofPoint make_rect_point(float len, int deg, int z = 0);
};

#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) {};

// make method

ofPoint make_rect_point(float len, int deg, int z = 0);

};

#include "ofApp.h"

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

	ofSetFrameRate(60);
	ofSetWindowTitle("Insta");

	ofBackground(39);
	ofNoFill();
	ofSetLineWidth(2.5);
}

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

	ofSeedRandom(39);
}

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

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

	for (int x_index = -1; x_index <= 1; x_index++) {

		for (int y_index = -1; y_index <= 1; y_index++) {

			ofPoint location(x_index * 230, y_index * 230);
			ofPushMatrix();
			ofTranslate(location);
			for (int rect_len = 30; rect_len < 200; rect_len += 16) {

				ofColor color;
				color.setHsb(ofRandom(255), 200, 255);
				ofSetColor(color);

				int start_noise = ofNoise(location.x * 0.1, rect_len * 0.05, ofGetFrameNum() * 0.005) * 360;
				int end_noise = ofMap(ofNoise(location.y * 0.1, rect_len * 0.05, ofGetFrameNum() * 0.01), 0, 1, -90, 360);
				int start_deg = ofRandom(360) + start_noise;
				int end_deg = start_deg + end_noise;

				if (start_deg > end_deg) { continue; }

				ofBeginShape();
				for (int deg = start_deg; deg < end_deg; deg += 1) {

					ofVertex(this->make_rect_point(rect_len, deg));
				}
				ofEndShape();
			}

			ofPopMatrix();
		}
	}
}

//--------------------------------------------------------------
ofPoint ofApp::make_rect_point(float len, int deg, int z) {

	int half_len = len * 0.5;
	int param = (deg + 45) / 90;
	ofPoint point;

	switch (param % 4) {

	case 0:

		return ofPoint(half_len, ofMap((deg + 45) % 90, 0, 89, -half_len, half_len), z);
	case 1:

		return  ofPoint(ofMap((deg + 45) % 90, 0, 89, half_len, -half_len), half_len, z);
	case 2:

		return ofPoint(-half_len, ofMap((deg + 45) % 90, 0, 89, half_len, -half_len), z);
	case 3:

		return ofPoint(ofMap((deg + 45) % 90, 0, 89, -half_len, half_len), -half_len, z);
	default:

		return ofPoint(0, 0, 0);
	}
}

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

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

#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(60);

ofSetWindowTitle("Insta");

ofBackground(39);

ofNoFill();

ofSetLineWidth(2.5);

}

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

void ofApp::update() {

ofSeedRandom(39);

}

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

void ofApp::draw() {

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

for (int x_index = -1; x_index <= 1; x_index++) {

for (int y_index = -1; y_index <= 1; y_index++) {

ofPoint location(x_index * 230, y_index * 230);

ofPushMatrix();

ofTranslate(location);

for (int rect_len = 30; rect_len < 200; rect_len += 16) {

ofColor color;

color.setHsb(ofRandom(255), 200, 255);

ofSetColor(color);

int start_noise = ofNoise(location.x * 0.1, rect_len * 0.05, ofGetFrameNum() * 0.005) * 360;

int end_noise = ofMap(ofNoise(location.y * 0.1, rect_len * 0.05, ofGetFrameNum() * 0.01), 0, 1, -90, 360);

int start_deg = ofRandom(360) + start_noise;

int end_deg = start_deg + end_noise;

if (start_deg > end_deg) { continue; }

ofBeginShape();

for (int deg = start_deg; deg < end_deg; deg += 1) {

ofVertex(this->make_rect_point(rect_len, deg));

}

ofEndShape();

}

ofPopMatrix();

}

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

ofPoint ofApp::make_rect_point(float len, int deg, int z) {

int half_len = len * 0.5;

int param = (deg + 45) / 90;

ofPoint point;

switch (param % 4) {

case 0:

return ofPoint(half_len, ofMap((deg + 45) % 90, 0, 89, -half_len, half_len), z);

case 1:

return ofPoint(ofMap((deg + 45) % 90, 0, 89, half_len, -half_len), half_len, z);

case 2:

return ofPoint(-half_len, ofMap((deg + 45) % 90, 0, 89, half_len, -half_len), z);

case 3:

return ofPoint(ofMap((deg + 45) % 90, 0, 89, -half_len, half_len), -half_len, z);

default:

return ofPoint(0, 0, 0);

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20180716

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