circle – ページ 139 – プログラミング de 落描き

2018年2月6日2018年2月5日

Noise でわっか openFrameworks

[ Video ]

[ About ]
角度3度ごとに線を引いています。線の長さはNoise関数で生成した値を元に変化させているので、それぞれの部位ごとに滑らかに変化していきます。

何故か周期的に線の長さが揃って0に近くなるのですが、プログラミングでそのような機構は入れたつもりはなかったので、想定外の動きになります。

ofNoiseに与えているdegの値が大きすぎるせい？？

[ 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);
	ofBackground(32);
	ofSetWindowTitle("Insta");

	ofSetLineWidth(3);
}

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

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

	ofTranslate(ofGetWidth() / 2, ofGetHeight() / 2);

	for (float radius = 50; radius <= 250; radius += 100) {

		for (float deg = 0; deg < 360; deg += 3) {

			float noise_value = ofNoise(deg - ofGetFrameNum() * 0.005) + 0.5;
			ofPoint point_1(radius * cos(deg * DEG_TO_RAD), radius * sin(deg * DEG_TO_RAD));
			ofPoint point_2(radius * noise_value * cos(deg * DEG_TO_RAD), radius * noise_value * sin(deg * DEG_TO_RAD));

			ofColor line_color;
			line_color.setHsb(deg / 360 * 255, 200, 200);
			ofSetColor(line_color);
			ofDrawLine(point_1, point_2);
		}
	}

}

//========================================================================
int main() {

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

#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(60);

ofBackground(32);

ofSetWindowTitle("Insta");

ofSetLineWidth(3);

}

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

void ofApp::update() {

}

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

void ofApp::draw() {

ofTranslate(ofGetWidth() / 2, ofGetHeight() / 2);

for (float radius = 50; radius <= 250; radius += 100) {

for (float deg = 0; deg < 360; deg += 3) {

float noise_value = ofNoise(deg - ofGetFrameNum() * 0.005) + 0.5;

ofPoint point_1(radius * cos(deg * DEG_TO_RAD), radius * sin(deg * DEG_TO_RAD));

ofPoint point_2(radius * noise_value * cos(deg * DEG_TO_RAD), radius * noise_value * sin(deg * DEG_TO_RAD));

ofColor line_color;

line_color.setHsb(deg / 360 * 255, 200, 200);

ofSetColor(line_color);

ofDrawLine(point_1, point_2);

}

//========================================================================

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20180205

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Amazon

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2018年1月8日2018年1月10日

Insta20180107

[ Video ]

[ About ]
マイク入力でWaveを生成
Wave created from microphone input.

[ 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) {};

	ofSoundStream sound_stream;
	void audioIn(float* input, int bufferSize, int nChannels);
	float vol;

	vector<float> lengths;
	vector<ofColor> colors;
};

#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) {};

ofSoundStream sound_stream;

void audioIn(float* input, int bufferSize, int nChannels);

float vol;

vector<float> lengths;

vector<ofColor> colors;

};

#include "ofApp.h"

//--------------------------------------------------------------
void ofApp::setup() {
	ofSetFrameRate(60);
	ofBackground(0);
	ofSetWindowTitle("Insta");

	ofNoFill();
	ofSetLineWidth(6);
	ofSetCircleResolution(120);

	sound_stream.setup(this, 0, 1, 44100, 256, 4);
}

//--------------------------------------------------------------
void ofApp::update() {
	for (int i = 0; i < this->lengths.size(); i++) {
		this->lengths[i] += 2;
	}

	if (this->vol > 0.5) {
		ofColor color;
		color.setHsb(ofGetFrameNum() % 255, 255, 255);
		this->lengths.push_back(0);
		this->colors.push_back(color);
		this->vol = 0;
	}

	for (int i = this->lengths.size() - 1; i >= 0; i--) {
		if (this->lengths[i] > ofGetWidth()) {
			this->lengths.erase(this->lengths.begin() + i);
			this->colors.erase(this->colors.begin() + i);

		}
	}
}

//--------------------------------------------------------------
void ofApp::draw() {
	for (int i = 0; i < this->lengths.size(); i++) {
		ofSetColor(this->colors[i], 255 - this->lengths[i] / 2);
		ofDrawCircle(ofGetWidth() / 2, ofGetHeight() / 2, this->lengths[i]);
	}
}

//--------------------------------------------------------------
void ofApp::audioIn(float* input, int bufferSize, int nChannels) {
	for (int i = 0; i < bufferSize; i++) {
		this->vol += input[i] * input[i];
	}
}

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

#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(60);

ofBackground(0);

ofSetWindowTitle("Insta");

ofNoFill();

ofSetLineWidth(6);

ofSetCircleResolution(120);

sound_stream.setup(this, 0, 1, 44100, 256, 4);

}

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

void ofApp::update() {

for (int i = 0; i < this->lengths.size(); i++) {

this->lengths[i] += 2;

}

if (this->vol > 0.5) {

ofColor color;

color.setHsb(ofGetFrameNum() % 255, 255, 255);

this->lengths.push_back(0);

this->colors.push_back(color);

this->vol = 0;

}

for (int i = this->lengths.size() - 1; i >= 0; i--) {

if (this->lengths[i] > ofGetWidth()) {

this->lengths.erase(this->lengths.begin() + i);

this->colors.erase(this->colors.begin() + i);

}

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

void ofApp::draw() {

for (int i = 0; i < this->lengths.size(); i++) {

ofSetColor(this->colors[i], 255 - this->lengths[i] / 2);

ofDrawCircle(ofGetWidth() / 2, ofGetHeight() / 2, this->lengths[i]);

}

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

void ofApp::audioIn(float* input, int bufferSize, int nChannels) {

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

this->vol += input[i] * input[i];

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20180107

[ほしいものリスト]
Amazon

[ Sponsor Link ]

2017年12月25日2017年12月24日

Insta20171224

[ Video ]

[ About ]
Noise関数に角度 + フラーム番号を引数に渡して、伝達するようにしました。
Noisy is transmitted.

[ 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(30);
	ofBackground(0);
	ofSetWindowTitle("Insta");

	ofEnableDepthTest();
	ofNoFill();
	ofSetLineWidth(2);
}

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

}

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

	this->cam.begin();

	int deg_span = 10;
	float radius = 0;
	float radius_default = 30;
	float radius_span = 5;
	int layer = 12;
	float x, y, z;
	float noise_value;

	for (int deg = 0; deg < 360 - deg_span; deg += deg_span) {
		radius = radius_default;
		for (int i = 0; i < layer; i++) {

			noise_value = ofNoise(i, deg * 0.005 + ofGetFrameNum() * 0.015);
			ofSetColor(255, 255 * noise_value);
			if (noise_value < 0.8) {
				noise_value = 0.8;
			}

			ofBeginShape();

			for (int tmp_deg = deg; tmp_deg <= deg + deg_span; tmp_deg += 1) {
				x = radius * cos(tmp_deg * DEG_TO_RAD);
				y = radius * sin(tmp_deg * DEG_TO_RAD);
				z = noise_value * 40;
				ofVertex(x, y, z);
			}

			for (int tmp_deg = deg + deg_span; tmp_deg >= deg; tmp_deg -= 1) {
				x = (radius + radius_span) * cos(tmp_deg * DEG_TO_RAD);
				y = (radius + radius_span) * sin(tmp_deg * DEG_TO_RAD);
				z = noise_value * 40;
				ofVertex(x, y, z);
			}

			ofEndShape(true);

			radius += radius_span;
		}
	}

	this->cam.end();
}

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

#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(30);

ofBackground(0);

ofSetWindowTitle("Insta");

ofEnableDepthTest();

ofNoFill();

ofSetLineWidth(2);

}

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

void ofApp::update() {

}

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

void ofApp::draw() {

this->cam.begin();

int deg_span = 10;

float radius = 0;

float radius_default = 30;

float radius_span = 5;

int layer = 12;

float x, y, z;

float noise_value;

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

radius = radius_default;

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

noise_value = ofNoise(i, deg * 0.005 + ofGetFrameNum() * 0.015);

ofSetColor(255, 255 * noise_value);

if (noise_value < 0.8) {

noise_value = 0.8;

}

ofBeginShape();

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

x = radius * cos(tmp_deg * DEG_TO_RAD);

y = radius * sin(tmp_deg * DEG_TO_RAD);

z = noise_value * 40;

ofVertex(x, y, z);

}

for (int tmp_deg = deg + deg_span; tmp_deg >= deg; tmp_deg -= 1) {

x = (radius + radius_span) * cos(tmp_deg * DEG_TO_RAD);

y = (radius + radius_span) * sin(tmp_deg * DEG_TO_RAD);

z = noise_value * 40;

ofVertex(x, y, z);

}

ofEndShape(true);

radius += radius_span;

}

this->cam.end();

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20171224

[ほしいものリスト]
Amazon

[ Sponsor Link ]

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