openframeworks – ページ 668 – プログラミング de 落描き

2018年2月12日2018年2月12日

再帰モザイク openFrameworks

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[ About ]
WebCameraの映像を再帰でデフォルメしてみました。

[ Source ]

#pragma once
#include "ofMain.h"
#include "opencv2/opencv.hpp"
#include "RecuRect.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) {};

	RecuRect r_rect;

	cv::VideoCapture cap;
	cv::Mat frame;
};

#pragma once

#include "ofMain.h"

#include "opencv2/opencv.hpp"

#include "RecuRect.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) {};

RecuRect r_rect;

cv::VideoCapture cap;

cv::Mat frame;

};

#include "ofApp.h"

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

	ofSetFrameRate(60);
	ofBackground(0);
	ofSetWindowTitle("Insta");

	ofSetRectMode(ofRectMode::OF_RECTMODE_CENTER);
	ofSetLineWidth(0.3);

	this->cap.open(1);
	this->cap.set(cv::CAP_PROP_FRAME_WIDTH, 640);
	this->cap.set(cv::CAP_PROP_FRAME_HEIGHT, 640);
}

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

	this->cap >> this->frame;
	if (this->frame.empty()) {

		return;
	}
	cv::flip(this->frame, this->frame, 1);

	if (ofGetFrameNum() % 90 == 0) {

		this->r_rect = RecuRect(8, ofVec2f(ofGetWidth() / 2, ofGetHeight() / 2), 640, true);
	}

	this->r_rect.update();
}

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

	r_rect.draw(this->frame);
}

#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(60);

ofBackground(0);

ofSetWindowTitle("Insta");

ofSetRectMode(ofRectMode::OF_RECTMODE_CENTER);

ofSetLineWidth(0.3);

this->cap.open(1);

this->cap.set(cv::CAP_PROP_FRAME_WIDTH, 640);

this->cap.set(cv::CAP_PROP_FRAME_HEIGHT, 640);

}

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

void ofApp::update() {

this->cap >> this->frame;

if (this->frame.empty()) {

return;

}

cv::flip(this->frame, this->frame, 1);

if (ofGetFrameNum() % 90 == 0) {

this->r_rect = RecuRect(8, ofVec2f(ofGetWidth() / 2, ofGetHeight() / 2), 640, true);

}

this->r_rect.update();

}

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

void ofApp::draw() {

r_rect.draw(this->frame);

}

#pragma once
#include "ofMain.h"
#include "opencv2/opencv.hpp"

class RecuRect
{
public:
	RecuRect();
	RecuRect(int level, ofVec2f location, float size, bool origin = false);
	~RecuRect();

	void update();
	void draw(cv::Mat frame);
private:
	int level;
	ofVec2f location;
	float size;
	int type;
	bool origin;

	std::vector<RecuRect> rects;
};

#pragma once

#include "ofMain.h"

#include "opencv2/opencv.hpp"

class RecuRect

{

public:

RecuRect();

RecuRect(int level, ofVec2f location, float size, bool origin = false);

~RecuRect();

void update();

void draw(cv::Mat frame);

private:

int level;

ofVec2f location;

float size;

int type;

bool origin;

std::vector<RecuRect> rects;

};

#include "RecuRect.h"

RecuRect::RecuRect() {

}

RecuRect::RecuRect(int level, ofVec2f location, float size, bool origin) {

	if (level > 0) {

		this->rects.push_back(RecuRect(level - 1, ofVec2f(location.x - size / 4, location.y - size / 4), size / 2));
		this->rects.push_back(RecuRect(level - 1, ofVec2f(location.x - size / 4, location.y + size / 4), size / 2));
		this->rects.push_back(RecuRect(level - 1, ofVec2f(location.x + size / 4, location.y - size / 4), size / 2));
		this->rects.push_back(RecuRect(level - 1, ofVec2f(location.x + size / 4, location.y + size / 4), size / 2));
	}

	this->level = level;
	this->location = location;
	this->size = size;
	this->type = ofRandom(100);
	this->origin = origin;
}

RecuRect::~RecuRect() {

}

void RecuRect::update() {

}

void RecuRect::draw(cv::Mat frame) {

	if (this->origin || (this->level != 0 && this->type < 80)) {

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

			this->rects[i].draw(frame);
		}
	}
	else {

		cv::Vec3b frame_color = frame.at<cv::Vec3b>((int)this->location.y, (int)this->location.x);
		ofColor color = ofColor(frame_color[2], frame_color[1], frame_color[0]);
		ofSetColor(color);
		ofDrawRectangle(this->location, this->size, this->size);
	}
}

#include "RecuRect.h"

RecuRect::RecuRect() {

}

RecuRect::RecuRect(int level, ofVec2f location, float size, bool origin) {

if (level > 0) {

this->rects.push_back(RecuRect(level - 1, ofVec2f(location.x - size / 4, location.y - size / 4), size / 2));

this->rects.push_back(RecuRect(level - 1, ofVec2f(location.x - size / 4, location.y + size / 4), size / 2));

this->rects.push_back(RecuRect(level - 1, ofVec2f(location.x + size / 4, location.y - size / 4), size / 2));

this->rects.push_back(RecuRect(level - 1, ofVec2f(location.x + size / 4, location.y + size / 4), size / 2));

}

this->level = level;

this->location = location;

this->size = size;

this->type = ofRandom(100);

this->origin = origin;

}

RecuRect::~RecuRect() {

}

void RecuRect::update() {

}

void RecuRect::draw(cv::Mat frame) {

if (this->origin || (this->level != 0 && this->type < 80)) {

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

this->rects[i].draw(frame);

}

else {

cv::Vec3b frame_color = frame.at<cv::Vec3b>((int)this->location.y, (int)this->location.x);

ofColor color = ofColor(frame_color[2], frame_color[1], frame_color[0]);

ofSetColor(color);

ofDrawRectangle(this->location, this->size, this->size);

}

[ Link ]
https://github.com/junkiyoshi/Insta20180211

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2018年2月11日2018年2月10日

音の可視化3D openFrameworks

[ Video ]

[ About ]
昨日の動画のやつを改造して、3Dのオブジェクトにしてみました。

[ 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;
	ofLight light;
	ofImage note;
	ofSoundPlayer sound;

	vector<float> fft_smoothed;
	vector<vector<float>> log;
	int n_bands_to_get;
};

#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;

ofLight light;

ofImage note;

ofSoundPlayer sound;

vector<float> fft_smoothed;

vector<vector<float>> log;

int n_bands_to_get;

};

#include "ofApp.h"

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

	ofSetFrameRate(60);
	ofBackground(0);
	ofSetWindowTitle("Insta");

	ofEnableDepthTest();

	this->note.load("note.png");
	this->sound.load("I_Did_That.mp3");
	this->sound.play();

	this->n_bands_to_get = 64;

	for (int j = 0; j < this->n_bands_to_get; j++) {
		this->fft_smoothed.push_back(0);
	}

	this->light.setPosition(ofVec3f(0, 0, 1024));
	this->light.enable();
}

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

	ofSoundUpdate();
	float* val = ofSoundGetSpectrum(this->n_bands_to_get);

	for (int i = 0; i < this->n_bands_to_get; i++) {

		this->fft_smoothed[i] *= 0.96f;
		if (this->fft_smoothed[i] < val[i]) {

			this->fft_smoothed[i] = val[i];
		}
	}

	log.push_back(this->fft_smoothed);
	if (log.size() > 10) {

			this->log.erase(this->log.begin());
	}
}

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

	this->cam.begin();

	ofSetColor(200);
	this->note.resize(50, 50);
	this->note.draw(ofVec2f(-(this->note.getWidth() / 2), -(this->note.getHeight() / 2)));

	if (this->sound.getIsPlaying()) {

		float radius = 80;

		for (int l = this->log.size() - 1; l > -1 ; l--)
		{
			for (int i = 0; i < this->n_bands_to_get; i++) {

				float deg = i * (360.f / this->n_bands_to_get);
				float height = this->log[l][i] * 50 * i / 3;

				float x = radius * cos(deg * DEG_TO_RAD);
				float y = radius * sin(deg * DEG_TO_RAD);
				ofVec3f point(x, y, height / 2);

				ofColor line_color;
				line_color.setHsb(255 - deg / 360 * 255, 255, 255);
				ofSetColor(line_color);

				ofDrawBox(point, 5, 5, height);
			}

			radius += 8;
		}
	}

	this->cam.end();
}

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

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

#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(60);

ofBackground(0);

ofSetWindowTitle("Insta");

ofEnableDepthTest();

this->note.load("note.png");

this->sound.load("I_Did_That.mp3");

this->sound.play();

this->n_bands_to_get = 64;

for (int j = 0; j < this->n_bands_to_get; j++) {

this->fft_smoothed.push_back(0);

}

this->light.setPosition(ofVec3f(0, 0, 1024));

this->light.enable();

}

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

void ofApp::update() {

ofSoundUpdate();

float* val = ofSoundGetSpectrum(this->n_bands_to_get);

for (int i = 0; i < this->n_bands_to_get; i++) {

this->fft_smoothed[i] *= 0.96f;

if (this->fft_smoothed[i] < val[i]) {

this->fft_smoothed[i] = val[i];

}

log.push_back(this->fft_smoothed);

if (log.size() > 10) {

this->log.erase(this->log.begin());

}

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

void ofApp::draw() {

this->cam.begin();

ofSetColor(200);

this->note.resize(50, 50);

this->note.draw(ofVec2f(-(this->note.getWidth() / 2), -(this->note.getHeight() / 2)));

if (this->sound.getIsPlaying()) {

float radius = 80;

for (int l = this->log.size() - 1; l > -1 ; l--)

{

for (int i = 0; i < this->n_bands_to_get; i++) {

float deg = i * (360.f / this->n_bands_to_get);

float height = this->log[l][i] * 50 * i / 3;

float x = radius * cos(deg * DEG_TO_RAD);

float y = radius * sin(deg * DEG_TO_RAD);

ofVec3f point(x, y, height / 2);

ofColor line_color;

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

ofSetColor(line_color);

ofDrawBox(point, 5, 5, height);

}

radius += 8;

}

this->cam.end();

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20180210

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2018年2月10日2018年2月9日

音の可視化 openFrameworks

[ Video ]

[ About ]
openFrameworksのexamples>sound>soundPlayFFTExampleを参考に、mp3データから動きをつけてみました。

ofSoundGetSpectrum関数が良い感じの数字を返してくれるぐらいの認識でしかいないので、取得した数字をこねくり回しているだけですが、良い感じではないでしょうか。

ちなみに、コーディング時間よりも圧倒的にフリー素材のBGMを探すのに時間を割かれました…YouTubeの音源素材を拝借しました、素晴らしい時代ですね。

今後、色々と改造していきたいです。

[ 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;
	ofImage note;
	ofSoundPlayer sound;
	
	vector<float> fft_smoothed;
	int n_bands_to_get;
};

#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;

ofImage note;

ofSoundPlayer sound;

vector<float> fft_smoothed;

int n_bands_to_get;

};

#include "ofApp.h"

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

	this->note.load("note.png");
	this->sound.load("Race_Car.mp3");
	this->sound.play();

	this->n_bands_to_get = 120;

	for (int j = 0; j < this->n_bands_to_get; j++) {
			this->fft_smoothed.push_back(0);
	}

	ofSetLineWidth(3);
}

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

	ofSoundUpdate();
	float* val = ofSoundGetSpectrum(this->n_bands_to_get);

	for (int i = 0; i < this->n_bands_to_get; i++) {

		this->fft_smoothed[i] *= 0.96f;
		if (this->fft_smoothed[i] < val[i]) {

			this->fft_smoothed[i] = val[i];
		}
	}
}

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

	this->cam.begin();

	ofSetColor(200);
	this->note.resize(50, 50);
	this->note.draw(ofVec2f(-(this->note.getWidth() / 2), -(this->note.getHeight() / 2)));

	if (this->sound.getIsPlaying()) {

		ofRotate(ofGetFrameNum() * 0.25);

		float radius = 80;
		for (int i = 0; i < this->n_bands_to_get; i++) {

			float deg = i * (360 / this->n_bands_to_get);
			float height = this->fft_smoothed[i] * 250 * i / 3;

			float x = radius * cos(deg * DEG_TO_RAD);
			float y = radius * sin(deg * DEG_TO_RAD);
			ofVec2f point_1(x, y);

			x = (radius + height) * cos(deg * DEG_TO_RAD);
			y = (radius + height) * sin(deg * DEG_TO_RAD);
			ofVec2f point_2(x, y);

			ofColor line_color;
			line_color.setHsb(255 - deg / 360 * 255, 255, 255);
			ofSetColor(line_color);
			ofDrawLine(point_1, point_2);
		}
	}
	
	this->cam.end();
}

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

	ofSetupOpenGL(1280, 720, OF_WINDOW);
	ofRunApp(new ofApp());
}

#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(60);

ofBackground(0);

ofSetWindowTitle("Insta");

this->note.load("note.png");

this->sound.load("Race_Car.mp3");

this->sound.play();

this->n_bands_to_get = 120;

for (int j = 0; j < this->n_bands_to_get; j++) {

this->fft_smoothed.push_back(0);

}

ofSetLineWidth(3);

}

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

void ofApp::update() {

ofSoundUpdate();

float* val = ofSoundGetSpectrum(this->n_bands_to_get);

for (int i = 0; i < this->n_bands_to_get; i++) {

this->fft_smoothed[i] *= 0.96f;

if (this->fft_smoothed[i] < val[i]) {

this->fft_smoothed[i] = val[i];

}

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

void ofApp::draw() {

this->cam.begin();

ofSetColor(200);

this->note.resize(50, 50);

this->note.draw(ofVec2f(-(this->note.getWidth() / 2), -(this->note.getHeight() / 2)));

if (this->sound.getIsPlaying()) {

ofRotate(ofGetFrameNum() * 0.25);

float radius = 80;

for (int i = 0; i < this->n_bands_to_get; i++) {

float deg = i * (360 / this->n_bands_to_get);

float height = this->fft_smoothed[i] * 250 * i / 3;

float x = radius * cos(deg * DEG_TO_RAD);

float y = radius * sin(deg * DEG_TO_RAD);

ofVec2f point_1(x, y);

x = (radius + height) * cos(deg * DEG_TO_RAD);

y = (radius + height) * sin(deg * DEG_TO_RAD);

ofVec2f point_2(x, y);

ofColor line_color;

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

ofSetColor(line_color);

ofDrawLine(point_1, point_2);

}

this->cam.end();

}

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

int main() {

ofSetupOpenGL(1280, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20180209

https://github.com/openframeworks/openFrameworks/tree/master/examples/sound/soundPlayerFFTExample

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