junkiyoshi – ページ 603 – プログラミング de 落描き

2020年8月18日2020年8月18日

Video of being peeled off. Draw by openFrameworks

[ Video ]

[ About ]
はげれ落ちる動画。

Video of being peeled off.

[ Source ]

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

	cv::VideoCapture cap;
	cv::Size cap_size;
	int number_of_frames;
	vector<cv::Mat> frame_list;

	float rect_size;
	vector<cv::Mat> rect_frame_list;
	vector<unique_ptr<ofImage>> rect_image_list;
	vector<cv::Rect> cv_rect_list;

	ofxBox2d box2d;
	vector<shared_ptr<ofxBox2dRect>> box2d_rect_list;
	vector<int> box2d_frame_index_list, box2d_rect_index_list;
	vector<float> box2d_life_list;
};

#pragma once

#include "ofMain.h"

#include "opencv2/opencv.hpp"

#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) {};

cv::VideoCapture cap;

cv::Size cap_size;

int number_of_frames;

vector<cv::Mat> frame_list;

float rect_size;

vector<cv::Mat> rect_frame_list;

vector<unique_ptr<ofImage>> rect_image_list;

vector<cv::Rect> cv_rect_list;

ofxBox2d box2d;

vector<shared_ptr<ofxBox2dRect>> box2d_rect_list;

vector<int> box2d_frame_index_list, box2d_rect_index_list;

vector<float> box2d_life_list;

};

#include "ofApp.h"

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

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

	ofBackground(239);
	ofEnableDepthTest();
	ofDisableArbTex();

	this->cap_size = cv::Size(640, 360);
	this->rect_size = 40;
	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_image_list.push_back(move(image));
			this->cv_rect_list.push_back(rect);
			this->rect_frame_list.push_back(frame);
		}
	}

	auto file_path = "D:\\MP4\\video2.mp4";
	this->cap.open(file_path);
	this->number_of_frames = this->cap.get(cv::CAP_PROP_FRAME_COUNT);
	for (int i = 0; i < this->number_of_frames; i++) {

		cv::Mat src, tmp;
		this->cap >> src;
		if (src.empty()) {
			
			continue;
		}

		cv::resize(src, tmp, this->cap_size);
		cv::cvtColor(tmp, tmp, cv::COLOR_BGR2RGB);

		this->frame_list.push_back(tmp);
	}

	this->box2d.init();
	this->box2d.setGravity(0, 50);
	this->box2d.createBounds();
	this->box2d.setFPS(60);
	this->box2d.registerGrabbing();
}

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

	for (int i = this->box2d_rect_list.size() - 1; i > -1; i--) {

		this->box2d_life_list[i] -= 3;
		if (this->box2d_life_list[i] < 0) {

			this->box2d_rect_list.erase(this->box2d_rect_list.begin() + i);
			this->box2d_frame_index_list.erase(this->box2d_frame_index_list.begin() + i);
			this->box2d_rect_index_list.erase(this->box2d_rect_index_list.begin() + i);
			this->box2d_life_list.erase(this->box2d_life_list.begin() + i);
		}
	}


	if (ofGetFrameNum() % 1 == 0) {

		int frame_index = (int)(ofGetFrameNum() * 0.42) % this->number_of_frames;
		int rect_index = ofRandom(this->cv_rect_list.size());

		auto box2d_rect = make_shared<ofxBox2dRect>();
		box2d_rect->setPhysics(0.5, 0.83, 0.1);
		box2d_rect->setup(this->box2d.getWorld(), this->cv_rect_list[rect_index].x + 50, this->cv_rect_list[rect_index].y + 30, this->rect_size, this->rect_size);

		this->box2d_rect_list.push_back(box2d_rect);
		this->box2d_frame_index_list.push_back(frame_index);
		this->box2d_rect_index_list.push_back(rect_index);
		this->box2d_life_list.push_back(255);
	}

	this->box2d.update();
}

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

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

		ofPushMatrix();
		ofTranslate(this->cv_rect_list[i].x + 50, this->cv_rect_list[i].y + 30, -1);
		ofRotateX(180);

		int frame_index = (int)(ofGetFrameNum() * 0.42) % this->number_of_frames;

		cv::Mat tmp_box_image(this->frame_list[frame_index], this->cv_rect_list[i]);
		tmp_box_image.copyTo(this->rect_frame_list[i]);

		this->rect_image_list[i]->update();
		this->rect_image_list[i]->getTexture().bind();
		ofSetColor(255);
		ofFill();
		ofDrawPlane(glm::vec3(), this->rect_size, this->rect_size);
		this->rect_image_list[i]->unbind();

		ofSetColor(39);
		ofNoFill();
		ofDrawPlane(glm::vec3(), this->rect_size, this->rect_size);

		ofPopMatrix();
	}

	for (int i = 0; i < this->box2d_rect_list.size(); i++) {

		ofPushMatrix();
		ofTranslate(this->box2d_rect_list[i]->getPosition().x, this->box2d_rect_list[i]->getPosition().y, 1);
		ofRotateX(180);
		ofRotate(this->box2d_rect_list[i]->getRotation());

		int frame_index = this->box2d_frame_index_list[i];
		int rect_index = this->box2d_rect_index_list[i];

		cv::Mat tmp_box_image(this->frame_list[frame_index], this->cv_rect_list[rect_index]);
		tmp_box_image.copyTo(this->rect_frame_list[rect_index]);

		this->rect_image_list[rect_index]->update();
		this->rect_image_list[rect_index]->getTexture().bind();
		ofSetColor(255, this->box2d_life_list[i] > 128 ? 255 : ofMap(this->box2d_life_list[i], 128, 0, 255, 0));
		ofFill();
		ofDrawPlane(glm::vec3(), this->rect_size, this->rect_size);
		this->rect_image_list[rect_index]->unbind();

		ofSetColor(39, this->box2d_life_list[i] > 128 ? 255 : ofMap(this->box2d_life_list[i], 128, 0, 255, 0));
		ofNoFill();
		ofDrawPlane(glm::vec3(), this->rect_size, this->rect_size);

		ofPopMatrix();
	}
}

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

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

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#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(60);

ofSetWindowTitle("openFrameworks");

ofBackground(239);

ofEnableDepthTest();

ofDisableArbTex();

this->cap_size = cv::Size(640, 360);

this->rect_size = 40;

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_image_list.push_back(move(image));

this->cv_rect_list.push_back(rect);

this->rect_frame_list.push_back(frame);

}

auto file_path = "D:\\MP4\\video2.mp4";

this->cap.open(file_path);

this->number_of_frames = this->cap.get(cv::CAP_PROP_FRAME_COUNT);

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

cv::Mat src, tmp;

this->cap >> src;

if (src.empty()) {

continue;

}

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

cv::cvtColor(tmp, tmp, cv::COLOR_BGR2RGB);

this->frame_list.push_back(tmp);

}

this->box2d.init();

this->box2d.setGravity(0, 50);

this->box2d.createBounds();

this->box2d.setFPS(60);

this->box2d.registerGrabbing();

}

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

void ofApp::update() {

for (int i = this->box2d_rect_list.size() - 1; i > -1; i--) {

this->box2d_life_list[i] -= 3;

if (this->box2d_life_list[i] < 0) {

this->box2d_rect_list.erase(this->box2d_rect_list.begin() + i);

this->box2d_frame_index_list.erase(this->box2d_frame_index_list.begin() + i);

this->box2d_rect_index_list.erase(this->box2d_rect_index_list.begin() + i);

this->box2d_life_list.erase(this->box2d_life_list.begin() + i);

}

if (ofGetFrameNum() % 1 == 0) {

int frame_index = (int)(ofGetFrameNum() * 0.42) % this->number_of_frames;

int rect_index = ofRandom(this->cv_rect_list.size());

auto box2d_rect = make_shared<ofxBox2dRect>();

box2d_rect->setPhysics(0.5, 0.83, 0.1);

box2d_rect->setup(this->box2d.getWorld(), this->cv_rect_list[rect_index].x + 50, this->cv_rect_list[rect_index].y + 30, this->rect_size, this->rect_size);

this->box2d_rect_list.push_back(box2d_rect);

this->box2d_frame_index_list.push_back(frame_index);

this->box2d_rect_index_list.push_back(rect_index);

this->box2d_life_list.push_back(255);

}

this->box2d.update();

}

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

void ofApp::draw() {

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

ofPushMatrix();

ofTranslate(this->cv_rect_list[i].x + 50, this->cv_rect_list[i].y + 30, -1);

ofRotateX(180);

int frame_index = (int)(ofGetFrameNum() * 0.42) % this->number_of_frames;

cv::Mat tmp_box_image(this->frame_list[frame_index], this->cv_rect_list[i]);

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

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

this->rect_image_list[i]->getTexture().bind();

ofSetColor(255);

ofFill();

ofDrawPlane(glm::vec3(), this->rect_size, this->rect_size);

this->rect_image_list[i]->unbind();

ofSetColor(39);

ofNoFill();

ofDrawPlane(glm::vec3(), this->rect_size, this->rect_size);

ofPopMatrix();

}

for (int i = 0; i < this->box2d_rect_list.size(); i++) {

ofPushMatrix();

ofTranslate(this->box2d_rect_list[i]->getPosition().x, this->box2d_rect_list[i]->getPosition().y, 1);

ofRotateX(180);

ofRotate(this->box2d_rect_list[i]->getRotation());

int frame_index = this->box2d_frame_index_list[i];

int rect_index = this->box2d_rect_index_list[i];

cv::Mat tmp_box_image(this->frame_list[frame_index], this->cv_rect_list[rect_index]);

tmp_box_image.copyTo(this->rect_frame_list[rect_index]);

this->rect_image_list[rect_index]->update();

this->rect_image_list[rect_index]->getTexture().bind();

ofSetColor(255, this->box2d_life_list[i] > 128 ? 255 : ofMap(this->box2d_life_list[i], 128, 0, 255, 0));

ofFill();

ofDrawPlane(glm::vec3(), this->rect_size, this->rect_size);

this->rect_image_list[rect_index]->unbind();

ofSetColor(39, this->box2d_life_list[i] > 128 ? 255 : ofMap(this->box2d_life_list[i], 128, 0, 255, 0));

ofNoFill();

ofDrawPlane(glm::vec3(), this->rect_size, this->rect_size);

ofPopMatrix();

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20200818

2020年8月17日2020年8月17日

Dancing Wall. Draw by openFrameworks

[ Video ]

[ About ]
踊る壁。

Dancing Wall.

[ 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) {};

	void setRingToMesh(ofMesh& face_target, ofMesh& frame_target, glm::vec3 location, float radius, float width, float height, int deg_start, int deg_end);

	ofEasyCam cam;
	ofMesh face, frame;
};

#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) {};

void setRingToMesh(ofMesh& face_target, ofMesh& frame_target, glm::vec3 location, float radius, float width, float height, int deg_start, int deg_end);

ofEasyCam cam;

ofMesh face, frame;

};

#include "ofApp.h"

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

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

	ofBackground(239);
	ofEnableDepthTest();

	this->frame.setMode(ofPrimitiveMode::OF_PRIMITIVE_LINES);
}

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

	ofSeedRandom(39);

	this->face.clear();
	this->frame.clear();

	int deg_span = 30;
	for (int radius = 50; radius <= 350; radius += 30) {

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

			auto height = ofMap(ofNoise(radius  * cos(deg * DEG_TO_RAD) * 0.005, radius * sin(deg * DEG_TO_RAD) * 0.005, ofGetFrameNum() * 0.018), 0, 1, 0, ofMap(radius, 50, 350, 100, 200));
			this->setRingToMesh(this->face, this->frame, glm::vec3(0, 0, height * -0.5), radius, 14, height, deg, deg + deg_span - 6);
		}
	}
}

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

	this->cam.begin();
	ofRotateX(120);

	ofSetColor(39);
	this->face.draw();

	ofSetColor(239);
	this->frame.drawWireframe();

	this->cam.end();
}

//--------------------------------------------------------------
void ofApp::setRingToMesh(ofMesh& face_target, ofMesh& frame_target, glm::vec3 location, float radius, float width, float height, int deg_start, int deg_end) {

	if (deg_start == deg_end) { return; }

	int index = face_target.getNumVertices();

	for (int deg = deg_start; deg <= deg_end; deg += 1) {

		auto face_index = face_target.getNumVertices();

		vector<glm::vec3> vertices;
		vertices.push_back(glm::vec3((radius + width * 0.5) * cos(deg * DEG_TO_RAD), (radius + width * 0.5) * sin(deg * DEG_TO_RAD), height * -0.5));
		vertices.push_back(glm::vec3((radius + width * 0.5) * cos((deg + 1) * DEG_TO_RAD), (radius + width * 0.5) * sin((deg + 1) * DEG_TO_RAD), height * -0.5));
		vertices.push_back(glm::vec3((radius + width * 0.5) * cos((deg + 1) * DEG_TO_RAD), (radius + width * 0.5) * sin((deg + 1) * DEG_TO_RAD), height * 0.5));
		vertices.push_back(glm::vec3((radius + width * 0.5) * cos(deg * DEG_TO_RAD), (radius + width * 0.5) * sin(deg * DEG_TO_RAD), height * 0.5));

		vertices.push_back(glm::vec3((radius - width * 0.5) * cos(deg * DEG_TO_RAD), (radius - width * 0.5) * sin(deg * DEG_TO_RAD), height * -0.5));
		vertices.push_back(glm::vec3((radius - width * 0.5) * cos((deg + 1) * DEG_TO_RAD), (radius - width * 0.5) * sin((deg + 1) * DEG_TO_RAD), height * -0.5));
		vertices.push_back(glm::vec3((radius - width * 0.5) * cos((deg + 1) * DEG_TO_RAD), (radius - width * 0.5) * sin((deg + 1) * DEG_TO_RAD), height * 0.5));
		vertices.push_back(glm::vec3((radius - width * 0.5) * cos(deg * DEG_TO_RAD), (radius - width * 0.5) * sin(deg * DEG_TO_RAD), height * 0.5));

		for (auto& vertex : vertices) {

			vertex += location;
		}

		face_target.addVertices(vertices);

		face_target.addIndex(face_index + 0); face_target.addIndex(face_index + 1); face_target.addIndex(face_index + 2);
		face_target.addIndex(face_index + 0); face_target.addIndex(face_index + 2); face_target.addIndex(face_index + 3);

		face_target.addIndex(face_index + 4); face_target.addIndex(face_index + 5); face_target.addIndex(face_index + 6);
		face_target.addIndex(face_index + 4); face_target.addIndex(face_index + 6); face_target.addIndex(face_index + 7);

		face_target.addIndex(face_index + 0); face_target.addIndex(face_index + 4); face_target.addIndex(face_index + 5);
		face_target.addIndex(face_index + 0); face_target.addIndex(face_index + 5); face_target.addIndex(face_index + 1);

		face_target.addIndex(face_index + 3); face_target.addIndex(face_index + 7); face_target.addIndex(face_index + 6);
		face_target.addIndex(face_index + 3); face_target.addIndex(face_index + 6); face_target.addIndex(face_index + 2);

		auto frame_index = frame_target.getNumVertices();

		frame_target.addVertices(vertices);

		frame_target.addIndex(frame_index + 0); frame_target.addIndex(frame_index + 1);
		frame_target.addIndex(frame_index + 2); frame_target.addIndex(frame_index + 3);
		frame_target.addIndex(frame_index + 4); frame_target.addIndex(frame_index + 5);
		frame_target.addIndex(frame_index + 6); frame_target.addIndex(frame_index + 7);
	}

	face_target.addIndex(index + 0); face_target.addIndex(index + 3); face_target.addIndex(index + 7);
	face_target.addIndex(index + 0); face_target.addIndex(index + 7); face_target.addIndex(index + 4);

	frame_target.addIndex(index + 0); frame_target.addIndex(index + 3);
	frame_target.addIndex(index + 0); frame_target.addIndex(index + 4);
	frame_target.addIndex(index + 7); frame_target.addIndex(index + 3);
	frame_target.addIndex(index + 7); frame_target.addIndex(index + 4);

	index = frame_target.getNumVertices() - 8;

	face_target.addIndex(index + 1); face_target.addIndex(index + 2); face_target.addIndex(index + 6);
	face_target.addIndex(index + 1); face_target.addIndex(index + 6); face_target.addIndex(index + 5);

	frame_target.addIndex(index + 1); frame_target.addIndex(index + 2);
	frame_target.addIndex(index + 1); frame_target.addIndex(index + 5);
	frame_target.addIndex(index + 6); frame_target.addIndex(index + 2);
	frame_target.addIndex(index + 6); frame_target.addIndex(index + 5);
}

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

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

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#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(60);

ofSetWindowTitle("openFrameworks");

ofBackground(239);

ofEnableDepthTest();

this->frame.setMode(ofPrimitiveMode::OF_PRIMITIVE_LINES);

}

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

void ofApp::update() {

ofSeedRandom(39);

this->face.clear();

this->frame.clear();

int deg_span = 30;

for (int radius = 50; radius <= 350; radius += 30) {

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

auto height = ofMap(ofNoise(radius * cos(deg * DEG_TO_RAD) * 0.005, radius * sin(deg * DEG_TO_RAD) * 0.005, ofGetFrameNum() * 0.018), 0, 1, 0, ofMap(radius, 50, 350, 100, 200));

this->setRingToMesh(this->face, this->frame, glm::vec3(0, 0, height * -0.5), radius, 14, height, deg, deg + deg_span - 6);

}

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

void ofApp::draw() {

this->cam.begin();

ofRotateX(120);

ofSetColor(39);

this->face.draw();

ofSetColor(239);

this->frame.drawWireframe();

this->cam.end();

}

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

void ofApp::setRingToMesh(ofMesh& face_target, ofMesh& frame_target, glm::vec3 location, float radius, float width, float height, int deg_start, int deg_end) {

if (deg_start == deg_end) { return; }

int index = face_target.getNumVertices();

for (int deg = deg_start; deg <= deg_end; deg += 1) {

auto face_index = face_target.getNumVertices();

vector<glm::vec3> vertices;

vertices.push_back(glm::vec3((radius + width * 0.5) * cos(deg * DEG_TO_RAD), (radius + width * 0.5) * sin(deg * DEG_TO_RAD), height * -0.5));

vertices.push_back(glm::vec3((radius + width * 0.5) * cos((deg + 1) * DEG_TO_RAD), (radius + width * 0.5) * sin((deg + 1) * DEG_TO_RAD), height * -0.5));

vertices.push_back(glm::vec3((radius + width * 0.5) * cos((deg + 1) * DEG_TO_RAD), (radius + width * 0.5) * sin((deg + 1) * DEG_TO_RAD), height * 0.5));

vertices.push_back(glm::vec3((radius + width * 0.5) * cos(deg * DEG_TO_RAD), (radius + width * 0.5) * sin(deg * DEG_TO_RAD), height * 0.5));

vertices.push_back(glm::vec3((radius - width * 0.5) * cos(deg * DEG_TO_RAD), (radius - width * 0.5) * sin(deg * DEG_TO_RAD), height * -0.5));

vertices.push_back(glm::vec3((radius - width * 0.5) * cos((deg + 1) * DEG_TO_RAD), (radius - width * 0.5) * sin((deg + 1) * DEG_TO_RAD), height * -0.5));

vertices.push_back(glm::vec3((radius - width * 0.5) * cos((deg + 1) * DEG_TO_RAD), (radius - width * 0.5) * sin((deg + 1) * DEG_TO_RAD), height * 0.5));

vertices.push_back(glm::vec3((radius - width * 0.5) * cos(deg * DEG_TO_RAD), (radius - width * 0.5) * sin(deg * DEG_TO_RAD), height * 0.5));

for (auto& vertex : vertices) {

vertex += location;

}

face_target.addVertices(vertices);

face_target.addIndex(face_index + 0); face_target.addIndex(face_index + 1); face_target.addIndex(face_index + 2);

face_target.addIndex(face_index + 0); face_target.addIndex(face_index + 2); face_target.addIndex(face_index + 3);

face_target.addIndex(face_index + 4); face_target.addIndex(face_index + 5); face_target.addIndex(face_index + 6);

face_target.addIndex(face_index + 4); face_target.addIndex(face_index + 6); face_target.addIndex(face_index + 7);

face_target.addIndex(face_index + 0); face_target.addIndex(face_index + 4); face_target.addIndex(face_index + 5);

face_target.addIndex(face_index + 0); face_target.addIndex(face_index + 5); face_target.addIndex(face_index + 1);

face_target.addIndex(face_index + 3); face_target.addIndex(face_index + 7); face_target.addIndex(face_index + 6);

face_target.addIndex(face_index + 3); face_target.addIndex(face_index + 6); face_target.addIndex(face_index + 2);

auto frame_index = frame_target.getNumVertices();

frame_target.addVertices(vertices);

frame_target.addIndex(frame_index + 0); frame_target.addIndex(frame_index + 1);

frame_target.addIndex(frame_index + 2); frame_target.addIndex(frame_index + 3);

frame_target.addIndex(frame_index + 4); frame_target.addIndex(frame_index + 5);

frame_target.addIndex(frame_index + 6); frame_target.addIndex(frame_index + 7);

}

face_target.addIndex(index + 0); face_target.addIndex(index + 3); face_target.addIndex(index + 7);

face_target.addIndex(index + 0); face_target.addIndex(index + 7); face_target.addIndex(index + 4);

frame_target.addIndex(index + 0); frame_target.addIndex(index + 3);

frame_target.addIndex(index + 0); frame_target.addIndex(index + 4);

frame_target.addIndex(index + 7); frame_target.addIndex(index + 3);

frame_target.addIndex(index + 7); frame_target.addIndex(index + 4);

index = frame_target.getNumVertices() - 8;

face_target.addIndex(index + 1); face_target.addIndex(index + 2); face_target.addIndex(index + 6);

face_target.addIndex(index + 1); face_target.addIndex(index + 6); face_target.addIndex(index + 5);

frame_target.addIndex(index + 1); frame_target.addIndex(index + 2);

frame_target.addIndex(index + 1); frame_target.addIndex(index + 5);

frame_target.addIndex(index + 6); frame_target.addIndex(index + 2);

frame_target.addIndex(index + 6); frame_target.addIndex(index + 5);

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20200817

2020年8月16日

Circle inside a circle. Draw by openFrameworks

[ Video ]

[ About ]
円の中に円を描いて出来た柄。

The pattern is made up of a circle with a circle inside a circle.

[ 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("openFrameworks");

	ofBackground(239);
	ofSetColor(39, 64);
	ofNoFill();
	ofSetCircleResolution(72);
	ofSetLineWidth(0.2);
}

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

	ofSeedRandom(39);
}

//--------------------------------------------------------------
void ofApp::draw() {
	
	for (int x = 210; x < ofGetWidth(); x += 300) {

		for (int y = 210; y < ofGetHeight(); y += 300) {

			ofPushMatrix();
			ofTranslate(x, y);

			int radius_start = 120;
			int radius_span = 1;
			auto noise_seed = ofRandom(1000);

			ofDrawCircle(glm::vec2(), radius_start);
			for (int radius = radius_start - radius_span; radius >= 0; radius -= radius_span) {

				auto tmp_radius = radius_span;
				auto deg = ofMap(ofNoise(noise_seed + radius * 0.005 - ofGetFrameNum() * 0.015), 0, 1, -720, 720);
				auto location = glm::vec2(tmp_radius * cos(deg * DEG_TO_RAD), tmp_radius * sin(deg * DEG_TO_RAD));
				ofDrawCircle(location, radius);

				ofTranslate(location);
			}

			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, 64);

ofNoFill();

ofSetCircleResolution(72);

ofSetLineWidth(0.2);

}

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

void ofApp::update() {

ofSeedRandom(39);

}

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

void ofApp::draw() {

for (int x = 210; x < ofGetWidth(); x += 300) {

for (int y = 210; y < ofGetHeight(); y += 300) {

ofPushMatrix();

ofTranslate(x, y);

int radius_start = 120;

int radius_span = 1;

auto noise_seed = ofRandom(1000);

ofDrawCircle(glm::vec2(), radius_start);

for (int radius = radius_start - radius_span; radius >= 0; radius -= radius_span) {

auto tmp_radius = radius_span;

auto deg = ofMap(ofNoise(noise_seed + radius * 0.005 - ofGetFrameNum() * 0.015), 0, 1, -720, 720);

auto location = glm::vec2(tmp_radius * cos(deg * DEG_TO_RAD), tmp_radius * sin(deg * DEG_TO_RAD));

ofDrawCircle(location, radius);

ofTranslate(location);

}

ofPopMatrix();

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20200816

2025年7月
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