programming – ページ 568 – プログラミング de 落描き

2018年12月9日

Sliced video. openframeworks

[ Video ]

[ About ]
動画データを一定間隔でバラバラに。それぞれをノイズでゆらゆら。openFrameworksのofImageとOpenCVのMatのリンクで

Sliced video. And, part is move from PerlinNoise.

[ Source ]

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

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) {};

	cv::VideoCapture cap;
	cv::Size cap_size;
	cv::Mat frame;

	float rect_size;
	vector<cv::Mat> rect_frames;
	vector<unique_ptr<ofImage>> rect_images;
	vector<cv::Rect> cv_rects;
};

#pragma once

#include "ofMain.h"

#include "opencv2/opencv.hpp"

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) {};

cv::VideoCapture cap;

cv::Size cap_size;

cv::Mat frame;

float rect_size;

vector<cv::Mat> rect_frames;

vector<unique_ptr<ofImage>> rect_images;

vector<cv::Rect> cv_rects;

};

#include "ofApp.h"

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

	ofSetFrameRate(60);
	ofSetWindowTitle("openframeworks");

	this->cap.open("image3.mp4");
	this->cap_size = cv::Size(1280, 720);

	ofBackground(0);
	ofEnableBlendMode(ofBlendMode::OF_BLENDMODE_ADD);

	this->rect_size = 80;
	for (int x = 0; x < this->cap_size.width; x += this->rect_size) {

		for (int y = 0; y < this->cap_size.height; y += this->rect_size) {

			auto image = make_unique<ofImage>();
			image->allocate(this->rect_size, this->rect_size, OF_IMAGE_COLOR);
			cv::Mat frame = cv::Mat(cv::Size(image->getWidth(), image->getHeight()), CV_MAKETYPE(CV_8UC3, image->getPixels().getNumChannels()), image->getPixels().getData(), 0);
			cv::Rect rect = cv::Rect(x, y, this->rect_size, this->rect_size);

			this->rect_images.push_back(move(image));
			this->rect_frames.push_back(frame);
			this->cv_rects.push_back(rect);
		}
	}
}

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

	ofSeedRandom(39);

	cv::Mat src;
	this->cap >> src;
	if (src.empty()) {

		this->cap.set(cv::CAP_PROP_POS_FRAMES, 1);
		return;
	}

	cv::resize(src, this->frame, this->cap_size);
	cv::cvtColor(this->frame, this->frame, cv::COLOR_BGR2RGB);
	for (int i = 0; i < this->rect_images.size(); i++) {

		cv::Mat tmp_box_image(this->frame, this->cv_rects[i]);
		tmp_box_image.copyTo(this->rect_frames[i]);

		this->rect_images[i]->update();
	}
}

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

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

		this->rect_images[i]->draw(this->cv_rects[i].x + ofMap(ofNoise(ofRandom(1000), ofGetFrameNum() * 0.1), 0, 1, -15, 15), this->cv_rects[i].y + ofMap(ofNoise(ofRandom(1000), ofGetFrameNum() * 0.1), 0, 1, -15, 15));
	}
}

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

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

#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(60);

ofSetWindowTitle("openframeworks");

this->cap.open("image3.mp4");

this->cap_size = cv::Size(1280, 720);

ofBackground(0);

ofEnableBlendMode(ofBlendMode::OF_BLENDMODE_ADD);

this->rect_size = 80;

for (int x = 0; x < this->cap_size.width; x += this->rect_size) {

for (int y = 0; y < this->cap_size.height; y += this->rect_size) {

auto image = make_unique<ofImage>();

image->allocate(this->rect_size, this->rect_size, OF_IMAGE_COLOR);

cv::Mat frame = cv::Mat(cv::Size(image->getWidth(), image->getHeight()), CV_MAKETYPE(CV_8UC3, image->getPixels().getNumChannels()), image->getPixels().getData(), 0);

cv::Rect rect = cv::Rect(x, y, this->rect_size, this->rect_size);

this->rect_images.push_back(move(image));

this->rect_frames.push_back(frame);

this->cv_rects.push_back(rect);

}

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

void ofApp::update() {

ofSeedRandom(39);

cv::Mat src;

this->cap >> src;

if (src.empty()) {

this->cap.set(cv::CAP_PROP_POS_FRAMES, 1);

return;

}

cv::resize(src, this->frame, this->cap_size);

cv::cvtColor(this->frame, this->frame, cv::COLOR_BGR2RGB);

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

cv::Mat tmp_box_image(this->frame, this->cv_rects[i]);

tmp_box_image.copyTo(this->rect_frames[i]);

this->rect_images[i]->update();

}

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

void ofApp::draw() {

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

this->rect_images[i]->draw(this->cv_rects[i].x + ofMap(ofNoise(ofRandom(1000), ofGetFrameNum() * 0.1), 0, 1, -15, 15), this->cv_rects[i].y + ofMap(ofNoise(ofRandom(1000), ofGetFrameNum() * 0.1), 0, 1, -15, 15));

}

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

int main() {

ofSetupOpenGL(1280, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
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2018年12月8日

Spheres friendship. openframeworks

[ Video ]

[ About ]
球体は色を持っています。球体同士が近づくと周りに相手の色の小さな球体が出現して結ばれます。

Spheres have color. Small spheres of contradictory color appear around when the spheres approach each other.

[ 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;
	vector<glm::vec3> locations;
	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) {};

ofEasyCam cam;

vector<glm::vec3> locations;

vector<ofColor> colors;

};

#include "ofApp.h"

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

	ofSetFrameRate(60);
	ofSetWindowTitle("openframeworks");

	ofBackground(0);
	ofEnableDepthTest();
}
//--------------------------------------------------------------
void ofApp::update() {

	ofSeedRandom(39);
	this->locations.clear();

	for (int i = 0; i < 100; i++) {

		glm::vec3 location = glm::vec3(
			ofMap(ofNoise(ofRandom(1000), ofGetFrameNum() * ofRandom(0.001, 0.0005)), 0, 1, -ofGetWidth() * 0.5, ofGetWidth() * 0.5),
			ofMap(ofNoise(ofRandom(1000), ofGetFrameNum() * ofRandom(0.001, 0.0005)), 0, 1, -ofGetHeight() * 0.5, ofGetHeight() * 0.5),
			ofMap(ofNoise(ofRandom(1000), ofGetFrameNum() * ofRandom(0.001, 0.0005)), 0, 1, -360, 360));
		this->locations.push_back(location);

		ofColor color;
		color.setHsb(ofRandom(255), 235, 255);
		this->colors.push_back(color);
	}
}

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

	this->cam.begin();
	ofRotateY(ofGetFrameNum() * 0.5);

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

		ofFill();
		ofSetColor(this->colors[i]);
		ofDrawSphere(this->locations[i], 10);
		for (int j = 0; j < this->locations.size(); j++) {

			if (i == j) {

				continue;
			}

			glm::vec3 distance = this->locations[i] - this->locations[j];
			float distance_lenght = glm::length(distance);

			if (distance_lenght < 100) {

				ofDrawSphere(this->locations[j] + glm::normalize(distance) * 20, 5);
				ofSetColor(this->colors[i] + this->colors[j]);
				ofDrawLine(this->locations[i] - glm::normalize(distance) * 20, this->locations[j] + glm::normalize(distance) * 20);
				ofSetColor(this->colors[i]);
			}
		}
	}

	this->cam.end();
}

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

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

#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(60);

ofSetWindowTitle("openframeworks");

ofBackground(0);

ofEnableDepthTest();

}

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

void ofApp::update() {

ofSeedRandom(39);

this->locations.clear();

for (int i = 0; i < 100; i++) {

glm::vec3 location = glm::vec3(

ofMap(ofNoise(ofRandom(1000), ofGetFrameNum() * ofRandom(0.001, 0.0005)), 0, 1, -ofGetWidth() * 0.5, ofGetWidth() * 0.5),

ofMap(ofNoise(ofRandom(1000), ofGetFrameNum() * ofRandom(0.001, 0.0005)), 0, 1, -ofGetHeight() * 0.5, ofGetHeight() * 0.5),

ofMap(ofNoise(ofRandom(1000), ofGetFrameNum() * ofRandom(0.001, 0.0005)), 0, 1, -360, 360));

this->locations.push_back(location);

ofColor color;

color.setHsb(ofRandom(255), 235, 255);

this->colors.push_back(color);

}

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

void ofApp::draw() {

this->cam.begin();

ofRotateY(ofGetFrameNum() * 0.5);

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

ofFill();

ofSetColor(this->colors[i]);

ofDrawSphere(this->locations[i], 10);

for (int j = 0; j < this->locations.size(); j++) {

if (i == j) {

continue;

}

glm::vec3 distance = this->locations[i] - this->locations[j];

float distance_lenght = glm::length(distance);

if (distance_lenght < 100) {

ofDrawSphere(this->locations[j] + glm::normalize(distance) * 20, 5);

ofSetColor(this->colors[i] + this->colors[j]);

ofDrawLine(this->locations[i] - glm::normalize(distance) * 20, this->locations[j] + glm::normalize(distance) * 20);

ofSetColor(this->colors[i]);

}

this->cam.end();

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
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2018年12月7日2018年12月7日

Friendship(Box2d). openFrameworks

[ Video ]

[ About ]
エージェントはお互いに反発します。周りの円によって作用している力が可視化されました。物理エンジンはofxBox2dです。

Agents are rebounding each other. Force has been visualized by the around circle. Physic engine is ofxBox2d.

[ Source ]

#pragma once
#include "ofMain.h"
#include "ofxBox2d.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) {};

	float radius;
	ofxBox2d box2d;
	vector<shared_ptr<ofxBox2dCircle>> circles;
};

#pragma once

#include "ofMain.h"

#include "ofxBox2d.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) {};

float radius;

ofxBox2d box2d;

vector<shared_ptr<ofxBox2dCircle>> circles;

};

#include "ofApp.h"

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

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

	ofBackground(239);
	ofSetColor(39);
	ofFill();

	this->radius = 25;

	this->box2d.init();
	this->box2d.setGravity(0, 0);
	this->box2d.createBounds();
	this->box2d.setFPS(60);
	this->box2d.registerGrabbing();

	for (int i = 0; i < 50; i++) {

		auto circle = make_shared<ofxBox2dCircle>();
		circle->setPhysics(0.5, 0.63, 0.1);
		circle->setup(this->box2d.getWorld(), ofRandom(0, ofGetWidth()), ofRandom(0, ofGetHeight()), this->radius);
		this->circles.push_back(circle);
	}
}

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

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

		for (int j = i + 1; j < this->circles.size(); j++) {

			float distance = this->circles[i]->getPosition().distance(this->circles[j]->getPosition());
			if (distance < this->radius * 4) {

				this->circles[i]->addForce(this->circles[i]->getPosition() - this->circles[j]->getPosition(), ofMap(distance, this->radius, this->radius * 4, 0.5, 0.002));
				this->circles[j]->addForce(this->circles[j]->getPosition() - this->circles[i]->getPosition(), ofMap(distance, this->radius, this->radius * 4, 0.5, 0.002));
			}
		}
	}

	this->box2d.update();
}

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

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

		ofDrawCircle(this->circles[i]->getPosition(), this->radius * 0.2);

		for (int j = 0; j < this->circles.size(); j++) {

			if (i == j) {

				continue;
			}

			glm::vec2 my = glm::vec2(this->circles[i]->getPosition().x, this->circles[i]->getPosition().y);
			glm::vec2 you = glm::vec2(this->circles[j]->getPosition().x, this->circles[j]->getPosition().y);
			glm::vec2 distance = my - you;

			if (glm::length(distance) < this->radius * 4) {

				float my_rad = std::atan2(you.y - my.y, you.x - my.x);
				float you_rad = std::atan2(my.y - you.y, my.x - you.x);

				glm::vec2 my_point = my + glm::vec2(radius * cos(my_rad), radius * sin(my_rad));
				glm::vec2 you_point = you + glm::vec2(radius * cos(you_rad), radius * sin(you_rad));
				ofDrawLine(my_point, you_point);

				float rad_span = PI / ofMap(glm::length(distance), this->radius * 2, this->radius * 4, 1, 10);
				float rad_step = rad_span / 10;

				ofBeginShape();
				for (float r = you_rad - rad_span; r <= you_rad + rad_span; r += rad_step) {

					ofVertex(you + glm::vec2(radius * cos(r), radius * sin(r)));
				}
				for (float r = you_rad + rad_span; r >= you_rad - rad_span; r -= rad_step) {

					ofVertex(you + glm::vec2(radius * 0.5 * cos(r), radius * 0.5 * sin(r)));
				}
				ofEndShape(true);
			}
		}
	}
}

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

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

#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(60);

ofSetWindowTitle("openFrameworks");

ofBackground(239);

ofSetColor(39);

ofFill();

this->radius = 25;

this->box2d.init();

this->box2d.setGravity(0, 0);

this->box2d.createBounds();

this->box2d.setFPS(60);

this->box2d.registerGrabbing();

for (int i = 0; i < 50; i++) {

auto circle = make_shared<ofxBox2dCircle>();

circle->setPhysics(0.5, 0.63, 0.1);

circle->setup(this->box2d.getWorld(), ofRandom(0, ofGetWidth()), ofRandom(0, ofGetHeight()), this->radius);

this->circles.push_back(circle);

}

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

void ofApp::update() {

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

for (int j = i + 1; j < this->circles.size(); j++) {

float distance = this->circles[i]->getPosition().distance(this->circles[j]->getPosition());

if (distance < this->radius * 4) {

this->circles[i]->addForce(this->circles[i]->getPosition() - this->circles[j]->getPosition(), ofMap(distance, this->radius, this->radius * 4, 0.5, 0.002));

this->circles[j]->addForce(this->circles[j]->getPosition() - this->circles[i]->getPosition(), ofMap(distance, this->radius, this->radius * 4, 0.5, 0.002));

}

this->box2d.update();

}

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

void ofApp::draw() {

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

ofDrawCircle(this->circles[i]->getPosition(), this->radius * 0.2);

for (int j = 0; j < this->circles.size(); j++) {

if (i == j) {

continue;

}

glm::vec2 my = glm::vec2(this->circles[i]->getPosition().x, this->circles[i]->getPosition().y);

glm::vec2 you = glm::vec2(this->circles[j]->getPosition().x, this->circles[j]->getPosition().y);

glm::vec2 distance = my - you;

if (glm::length(distance) < this->radius * 4) {

float my_rad = std::atan2(you.y - my.y, you.x - my.x);

float you_rad = std::atan2(my.y - you.y, my.x - you.x);

glm::vec2 my_point = my + glm::vec2(radius * cos(my_rad), radius * sin(my_rad));

glm::vec2 you_point = you + glm::vec2(radius * cos(you_rad), radius * sin(you_rad));

ofDrawLine(my_point, you_point);

float rad_span = PI / ofMap(glm::length(distance), this->radius * 2, this->radius * 4, 1, 10);

float rad_step = rad_span / 10;

ofBeginShape();

for (float r = you_rad - rad_span; r <= you_rad + rad_span; r += rad_step) {

ofVertex(you + glm::vec2(radius * cos(r), radius * sin(r)));

}

for (float r = you_rad + rad_span; r >= you_rad - rad_span; r -= rad_step) {

ofVertex(you + glm::vec2(radius * 0.5 * cos(r), radius * 0.5 * sin(r)));

}

ofEndShape(true);

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

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