junkiyoshi – ページ 431 – プログラミング de 落描き

2020年10月12日2020年10月12日

Square and remixed. Draw by openFrameworks

[ Video ]

[ About ]
Square and remixed.

[ 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) {};

	ofEasyCam cam;

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

	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) {};

ofEasyCam cam;

cv::VideoCapture cap;

cv::Size cap_size;

int number_of_frames;

vector<cv::Mat> frame_list;

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");

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

	this->cap_size = cv::Size(360, 360);
	this->rect_size = 20;
	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->cv_rects.push_back(rect);
			this->rect_frames.push_back(frame);
		}
	}

	this->number_of_frames = 0;
	vector<string> file_path_list = {
		"D:\\MP4\\openframeworks 2020-09-03.mp4",
		"D:\\MP4\\openFrameworks 2020-08-26.mp4",
		"D:\\MP4\\openframeworks 2020-09-29.mp4",
		"D:\\MP4\\openFrameworks 2020-09-18.mp4",
	};

	for (auto& file_path : file_path_list) {

		this->cap.open(file_path);
		int frame_count = this->cap.get(cv::CAP_PROP_FRAME_COUNT);
		for (int i = 0; i < frame_count; 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->number_of_frames += frame_count;
	}
}

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

	ofSeedRandom(39);
}

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

	this->cam.begin();
	ofRotateX(ofGetFrameNum() * 0.43);
	ofRotateY(ofGetFrameNum() * 0.65);

	for (int k = 0; k < 6; k++) {

		if (k > 0 && k < 4) { ofRotateY(90); }
		if (k == 4) { ofRotateX(90); }
		if (k == 5) { ofRotateX(180); }


		float noise_seed = ofRandom(1000);
		for (int i = 0; i < this->rect_frames.size(); i++) {

			int frame_index = ofMap(ofNoise(noise_seed, this->cv_rects[i].x * 0.001, this->cv_rects[i].y * 0.001, ofGetFrameNum() * 0.005), 0, 1, 0, this->number_of_frames);

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

			this->rect_images[i]->update();
			this->rect_images[i]->getTexture().bind();
			ofSetColor(255);
			ofFill();
			ofDrawBox(glm::vec3(
				this->cv_rects[i].x + this->cv_rects[i].width * 0.5 - this->cap_size.width * 0.5,
				this->cap_size.height - this->cv_rects[i].y - this->cv_rects[i].height * 0.5 - this->cap_size.height * 0.5,
				180),
				this->rect_size, this->rect_size, 5);
			this->rect_images[i]->unbind();

			ofSetColor(39);
			ofNoFill();
			ofDrawBox(glm::vec3(
				this->cv_rects[i].x + this->cv_rects[i].width * 0.5 - this->cap_size.width * 0.5,
				this->cap_size.height - this->cv_rects[i].y - this->cv_rects[i].height * 0.5 - this->cap_size.height * 0.5,
				180),
				this->rect_size, this->rect_size, 5);

		}
	}

	this->cam.end();
}

//--------------------------------------------------------------
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(360, 360);

this->rect_size = 20;

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->cv_rects.push_back(rect);

this->rect_frames.push_back(frame);

}

this->number_of_frames = 0;

vector<string> file_path_list = {

"D:\\MP4\\openframeworks 2020-09-03.mp4",

"D:\\MP4\\openFrameworks 2020-08-26.mp4",

"D:\\MP4\\openframeworks 2020-09-29.mp4",

"D:\\MP4\\openFrameworks 2020-09-18.mp4",

};

for (auto& file_path : file_path_list) {

this->cap.open(file_path);

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

for (int i = 0; i < frame_count; 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->number_of_frames += frame_count;

}

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

void ofApp::update() {

ofSeedRandom(39);

}

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

void ofApp::draw() {

this->cam.begin();

ofRotateX(ofGetFrameNum() * 0.43);

ofRotateY(ofGetFrameNum() * 0.65);

for (int k = 0; k < 6; k++) {

if (k > 0 && k < 4) { ofRotateY(90); }

if (k == 4) { ofRotateX(90); }

if (k == 5) { ofRotateX(180); }

float noise_seed = ofRandom(1000);

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

int frame_index = ofMap(ofNoise(noise_seed, this->cv_rects[i].x * 0.001, this->cv_rects[i].y * 0.001, ofGetFrameNum() * 0.005), 0, 1, 0, this->number_of_frames);

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

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

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

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

ofSetColor(255);

ofFill();

ofDrawBox(glm::vec3(

this->cv_rects[i].x + this->cv_rects[i].width * 0.5 - this->cap_size.width * 0.5,

this->cap_size.height - this->cv_rects[i].y - this->cv_rects[i].height * 0.5 - this->cap_size.height * 0.5,

180),

this->rect_size, this->rect_size, 5);

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

ofSetColor(39);

ofNoFill();

ofDrawBox(glm::vec3(

this->cv_rects[i].x + this->cv_rects[i].width * 0.5 - this->cap_size.width * 0.5,

this->cap_size.height - this->cv_rects[i].y - this->cv_rects[i].height * 0.5 - this->cap_size.height * 0.5,

180),

this->rect_size, this->rect_size, 5);

}

this->cam.end();

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20201012

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2020年10月11日

Box in the box. Draw by openframeworks

[ Video ]

[ About ]
箱の中の箱。

Box in the box.

[ 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 setBoxToMesh(ofMesh& face_target, ofMesh& frame_target, glm::vec3 location, float size, ofColor face_color);
	void setBoxToMesh(ofMesh& face_target, ofMesh& frame_target, glm::vec3 location, float height, float width, float depth, ofColor face_colorr);

	ofEasyCam cam;
	ofMesh face, frame;

	vector<glm::vec3> location_list;
	vector<int> param_list;
	vector<ofColor> param_color_list;
	vector<vector<int>> route_info_list;

	vector<int> index_list;
	vector<ofColor> color_list;
};

#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 setBoxToMesh(ofMesh& face_target, ofMesh& frame_target, glm::vec3 location, float size, ofColor face_color);

void setBoxToMesh(ofMesh& face_target, ofMesh& frame_target, glm::vec3 location, float height, float width, float depth, ofColor face_colorr);

ofEasyCam cam;

ofMesh face, frame;

vector<glm::vec3> location_list;

vector<int> param_list;

vector<ofColor> param_color_list;

vector<vector<int>> route_info_list;

vector<int> index_list;

vector<ofColor> color_list;

};

#include "ofApp.h"

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

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

	ofBackground(239);
	ofSetLineWidth(2);
	ofEnableDepthTest();

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

	int span = 15;
	for (int x = -220; x <= 220; x += span) {

		for (int y = -220; y <= 220; y += span) {

			for (int z = -220; z <= 220; z += span) {

				this->location_list.push_back(glm::vec3(x, y, z));
				this->param_list.push_back(0);
				this->param_color_list.push_back(ofColor());
			}
		}
	}

	for (auto& location : this->location_list) {

		vector<int> route_info = vector<int>();
		int index = -1;
		for (auto& other : this->location_list) {

			index++;
			if (location == other) { continue; }

			float distance = glm::distance(location, other);
			if (distance <= span) {

				route_info.push_back(index);
			}
		}

		this->route_info_list.push_back(route_info);
	}

	ofColor color;
	vector<int> hex_list = { 0xef476f, 0xffd166, 0x06d6a0, 0x118ab2, 0x073b4c };
	vector<ofColor> base_color_list;
	for (auto hex : hex_list) {

		color.setHex(hex);
		base_color_list.push_back(color);
	}

	for (int i = 0; i < 150; i++) {

		this->index_list.push_back((int)ofRandom(this->location_list.size()));
		this->color_list.push_back(base_color_list[(int)ofRandom(base_color_list.size())]);
	}
}

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

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

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

		int next_index = this->route_info_list[this->index_list[i]][(int)ofRandom(this->route_info_list[this->index_list[i]].size())];
		for (int k = 0; k < this->route_info_list[this->index_list[i]].size(); k++) {

			if (this->param_list[next_index] <= 0) {

				this->param_list[next_index] = 30;
				this->param_color_list[next_index] = this->color_list[i];
				this->index_list[i] = next_index;
				break;
			}
		}
	}

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

		if (this->param_list[i] > 0) {

			this->setBoxToMesh(this->face, this->frame, this->location_list[i], 15, this->param_color_list[i]);
		}

		if (this->param_list[i] > 0) { this->param_list[i] -= 1; }
	}
}

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

	this->cam.begin();
	ofRotateX(ofGetFrameNum() * 0.43);
	ofRotateY(ofGetFrameNum() * 0.65);

	this->face.draw();

	ofSetColor(39);
	this->frame.drawWireframe();

	ofNoFill();
	ofDrawBox(440 + 15);

	this->cam.end();
}

//--------------------------------------------------------------
void ofApp::setBoxToMesh(ofMesh& face_target, ofMesh& frame_target, glm::vec3 location, float size, ofColor face_color) {

	this->setBoxToMesh(face_target, frame_target, location, size, size, size, face_color);
}

//--------------------------------------------------------------
void ofApp::setBoxToMesh(ofMesh& face_target, ofMesh& frame_target, glm::vec3 location, float height, float width, float depth, ofColor face_color) {

	int face_index = face_target.getNumVertices();
	int frame_index = frame_target.getNumVertices();

	face_target.addVertex(location + glm::vec3(width * -0.5 * 0.99, height * 0.5 * 0.99, depth * -0.5 * 0.99));
	face_target.addVertex(location + glm::vec3(width * 0.5 * 0.99, height * 0.5 * 0.99, depth * -0.5 * 0.99));
	face_target.addVertex(location + glm::vec3(width * 0.5 * 0.99, height * 0.5 * 0.99, depth * 0.5 * 0.99));
	face_target.addVertex(location + glm::vec3(width * -0.5 * 0.99, height * 0.5 * 0.99, depth * 0.5 * 0.99));

	face_target.addVertex(location + glm::vec3(width * -0.5 * 0.99, height * -0.5 * 0.99, depth * -0.5 * 0.99));
	face_target.addVertex(location + glm::vec3(width * 0.5 * 0.99, height * -0.5 * 0.99, depth * -0.5 * 0.99));
	face_target.addVertex(location + glm::vec3(width * 0.5 * 0.99, height * -0.5 * 0.99, depth * 0.5 * 0.99));
	face_target.addVertex(location + glm::vec3(width * -0.5 * 0.99, height * -0.5 * 0.99, depth * 0.5 * 0.99));

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

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

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

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

	frame_target.addVertex(location + glm::vec3(width * -0.5, height * 0.5, depth * -0.5));
	frame_target.addVertex(location + glm::vec3(width * 0.5, height * 0.5, depth * -0.5));
	frame_target.addVertex(location + glm::vec3(width * 0.5, height * 0.5, depth * 0.5));
	frame_target.addVertex(location + glm::vec3(width * -0.5, height * 0.5, depth * 0.5));

	frame_target.addVertex(location + glm::vec3(width * -0.5, height * -0.5, depth * -0.5));
	frame_target.addVertex(location + glm::vec3(width * 0.5, height * -0.5, depth * -0.5));
	frame_target.addVertex(location + glm::vec3(width * 0.5, height * -0.5, depth * 0.5));
	frame_target.addVertex(location + glm::vec3(width * -0.5, height * -0.5, depth * 0.5));

	frame_target.addIndex(frame_index + 0); frame_target.addIndex(frame_index + 1);
	frame_target.addIndex(frame_index + 1); frame_target.addIndex(frame_index + 2);
	frame_target.addIndex(frame_index + 2); frame_target.addIndex(frame_index + 3);
	frame_target.addIndex(frame_index + 3); frame_target.addIndex(frame_index + 0);

	frame_target.addIndex(frame_index + 4); frame_target.addIndex(frame_index + 5);
	frame_target.addIndex(frame_index + 5); frame_target.addIndex(frame_index + 6);
	frame_target.addIndex(frame_index + 6); frame_target.addIndex(frame_index + 7);
	frame_target.addIndex(frame_index + 7); frame_target.addIndex(frame_index + 4);

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

	for (int i = 0; i < 8; i++) {

		face_target.addColor(face_color);
	}
}

//--------------------------------------------------------------
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);

ofSetLineWidth(2);

ofEnableDepthTest();

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

int span = 15;

for (int x = -220; x <= 220; x += span) {

for (int y = -220; y <= 220; y += span) {

for (int z = -220; z <= 220; z += span) {

this->location_list.push_back(glm::vec3(x, y, z));

this->param_list.push_back(0);

this->param_color_list.push_back(ofColor());

}

for (auto& location : this->location_list) {

vector<int> route_info = vector<int>();

int index = -1;

for (auto& other : this->location_list) {

index++;

if (location == other) { continue; }

float distance = glm::distance(location, other);

if (distance <= span) {

route_info.push_back(index);

}

this->route_info_list.push_back(route_info);

}

ofColor color;

vector<int> hex_list = { 0xef476f, 0xffd166, 0x06d6a0, 0x118ab2, 0x073b4c };

vector<ofColor> base_color_list;

for (auto hex : hex_list) {

color.setHex(hex);

base_color_list.push_back(color);

}

for (int i = 0; i < 150; i++) {

this->index_list.push_back((int)ofRandom(this->location_list.size()));

this->color_list.push_back(base_color_list[(int)ofRandom(base_color_list.size())]);

}

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

void ofApp::update() {

this->face.clear();

this->frame.clear();

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

int next_index = this->route_info_list[this->index_list[i]][(int)ofRandom(this->route_info_list[this->index_list[i]].size())];

for (int k = 0; k < this->route_info_list[this->index_list[i]].size(); k++) {

if (this->param_list[next_index] <= 0) {

this->param_list[next_index] = 30;

this->param_color_list[next_index] = this->color_list[i];

this->index_list[i] = next_index;

break;

}

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

if (this->param_list[i] > 0) {

this->setBoxToMesh(this->face, this->frame, this->location_list[i], 15, this->param_color_list[i]);

}

if (this->param_list[i] > 0) { this->param_list[i] -= 1; }

}

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

void ofApp::draw() {

this->cam.begin();

ofRotateX(ofGetFrameNum() * 0.43);

ofRotateY(ofGetFrameNum() * 0.65);

this->face.draw();

ofSetColor(39);

this->frame.drawWireframe();

ofNoFill();

ofDrawBox(440 + 15);

this->cam.end();

}

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

void ofApp::setBoxToMesh(ofMesh& face_target, ofMesh& frame_target, glm::vec3 location, float size, ofColor face_color) {

this->setBoxToMesh(face_target, frame_target, location, size, size, size, face_color);

}

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

void ofApp::setBoxToMesh(ofMesh& face_target, ofMesh& frame_target, glm::vec3 location, float height, float width, float depth, ofColor face_color) {

int face_index = face_target.getNumVertices();

int frame_index = frame_target.getNumVertices();

face_target.addVertex(location + glm::vec3(width * -0.5 * 0.99, height * 0.5 * 0.99, depth * -0.5 * 0.99));

face_target.addVertex(location + glm::vec3(width * 0.5 * 0.99, height * 0.5 * 0.99, depth * -0.5 * 0.99));

face_target.addVertex(location + glm::vec3(width * 0.5 * 0.99, height * 0.5 * 0.99, depth * 0.5 * 0.99));

face_target.addVertex(location + glm::vec3(width * -0.5 * 0.99, height * 0.5 * 0.99, depth * 0.5 * 0.99));

face_target.addVertex(location + glm::vec3(width * -0.5 * 0.99, height * -0.5 * 0.99, depth * -0.5 * 0.99));

face_target.addVertex(location + glm::vec3(width * 0.5 * 0.99, height * -0.5 * 0.99, depth * -0.5 * 0.99));

face_target.addVertex(location + glm::vec3(width * 0.5 * 0.99, height * -0.5 * 0.99, depth * 0.5 * 0.99));

face_target.addVertex(location + glm::vec3(width * -0.5 * 0.99, height * -0.5 * 0.99, depth * 0.5 * 0.99));

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 + 1);

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

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

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

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

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

face_target.addIndex(face_index + 3); face_target.addIndex(face_index + 7); face_target.addIndex(face_index + 4);

face_target.addIndex(face_index + 4); face_target.addIndex(face_index + 0); face_target.addIndex(face_index + 3);

frame_target.addVertex(location + glm::vec3(width * -0.5, height * 0.5, depth * -0.5));

frame_target.addVertex(location + glm::vec3(width * 0.5, height * 0.5, depth * -0.5));

frame_target.addVertex(location + glm::vec3(width * 0.5, height * 0.5, depth * 0.5));

frame_target.addVertex(location + glm::vec3(width * -0.5, height * 0.5, depth * 0.5));

frame_target.addVertex(location + glm::vec3(width * -0.5, height * -0.5, depth * -0.5));

frame_target.addVertex(location + glm::vec3(width * 0.5, height * -0.5, depth * -0.5));

frame_target.addVertex(location + glm::vec3(width * 0.5, height * -0.5, depth * 0.5));

frame_target.addVertex(location + glm::vec3(width * -0.5, height * -0.5, depth * 0.5));

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

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

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

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

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

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

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

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

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

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

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

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

for (int i = 0; i < 8; i++) {

face_target.addColor(face_color);

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

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2020年10月10日2020年10月10日

footprints. Draw by openFrameworks

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足跡。

footprints.

[ Source ]

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

	vector<unique_ptr<Particle>> particle_list;
};

#pragma once

#include "ofMain.h"

#include "Particle.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) {};

vector<unique_ptr<Particle>> particle_list;

};

#include "ofApp.h"

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

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

	ofBackground(239);

	for (int i = 0; i < 20; i++) {

		auto particle = make_unique<Particle>();
		this->particle_list.push_back(move(particle));
	}
}

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

	for (auto& particle : this->particle_list) {

		particle->update(this->particle_list);
	}
}

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

	ofMesh mesh;
	mesh.setMode(ofPrimitiveMode::OF_PRIMITIVE_LINES);

	for (auto& particle : this->particle_list) {
		
		mesh.addVertices(particle->log);
	}

	for (int i = 0; i < mesh.getNumVertices(); i++)	{

		for (int k = i + 1; k < mesh.getNumVertices(); k++) {

			auto distance = glm::distance(mesh.getVertex(i), mesh.getVertex(k));
			if (distance < 25) {

				mesh.addIndex(i); mesh.addIndex(k);
			}
		}

	}

	ofSetColor(39);
	mesh.drawVertices();
}

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

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

#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(60);

ofSetWindowTitle("openFrameworks");

ofBackground(239);

for (int i = 0; i < 20; i++) {

auto particle = make_unique<Particle>();

this->particle_list.push_back(move(particle));

}

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

void ofApp::update() {

for (auto& particle : this->particle_list) {

particle->update(this->particle_list);

}

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

void ofApp::draw() {

ofMesh mesh;

mesh.setMode(ofPrimitiveMode::OF_PRIMITIVE_LINES);

for (auto& particle : this->particle_list) {

mesh.addVertices(particle->log);

}

for (int i = 0; i < mesh.getNumVertices(); i++) {

for (int k = i + 1; k < mesh.getNumVertices(); k++) {

auto distance = glm::distance(mesh.getVertex(i), mesh.getVertex(k));

if (distance < 25) {

mesh.addIndex(i); mesh.addIndex(k);

}

ofSetColor(39);

mesh.drawVertices();

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

#pragma once
#include "ofMain.h"

class Particle {
public:
	Particle();
	~Particle();

	void update(vector<unique_ptr<Particle>>& particles);
	void draw();
	glm::vec2 separate(vector<unique_ptr<Particle>>& particles);
	glm::vec2 align(vector<unique_ptr<Particle>>& particles);
	glm::vec2 cohesion(vector<unique_ptr<Particle>>& particles);
	glm::vec2 seek(glm::vec2 target);
	void applyForce(glm::vec2 force);

	vector<glm::vec3> log;
	ofColor color;

private:
	glm::vec2 location;
	glm::vec2 velocity;
	glm::vec2 acceleration;

	float range;
	float max_force;
	float max_speed;
};

#pragma once

#include "ofMain.h"

class Particle {

public:

Particle();

~Particle();

void update(vector<unique_ptr<Particle>>& particles);

void draw();

glm::vec2 separate(vector<unique_ptr<Particle>>& particles);

glm::vec2 align(vector<unique_ptr<Particle>>& particles);

glm::vec2 cohesion(vector<unique_ptr<Particle>>& particles);

glm::vec2 seek(glm::vec2 target);

void applyForce(glm::vec2 force);

vector<glm::vec3> log;

ofColor color;

private:

glm::vec2 location;

glm::vec2 velocity;

glm::vec2 acceleration;

float range;

float max_force;

float max_speed;

};

#include "Particle.h"

//--------------------------------------------------------------
Particle::Particle() {

	this->location = glm::vec2(ofRandom(ofGetWidth()), ofRandom(ofGetHeight()));
	this->velocity = glm::vec2(ofRandom(-1, 1), ofRandom(-1, 1));

	this->range = 50;
	this->max_force = 1;
	this->max_speed = 8;

	ofColor color;
	vector<int> hex_list = { 0xef476f, 0xffd166, 0x06d6a0, 0x118ab2, 0x073b4c };
	vector<ofColor> base_color_list;
	for (auto hex : hex_list) {

		color.setHex(hex);
		base_color_list.push_back(color);
	}

	this->color = base_color_list[(int)ofRandom(base_color_list.size())];
}

//--------------------------------------------------------------
Particle::~Particle() {}

//--------------------------------------------------------------
void Particle::update(vector<unique_ptr<Particle>>& particles) {

	// 分離
	glm::vec2 separate = this->separate(particles);
	this->applyForce(separate);

	// 整列
	glm::vec2 align = this->align(particles);
	this->applyForce(align);

	// 結合
	glm::vec2 cohesion = this->cohesion(particles);
	this->applyForce(cohesion);

	// 自我
	if (glm::length(this->velocity) > 0) {

		glm::vec2 future = glm::normalize(this->velocity) * this->range;
		future += this->location;

		float angle = ofRandom(360);
		glm::vec2 target = future + glm::vec2(this->range * 0.5 * cos(angle * DEG_TO_RAD), this->range * 0.5 * sin(angle * DEG_TO_RAD));

		glm::vec2 ego = this->seek(target);
		this->applyForce(ego);
	}

	// 境界
	if (glm::length(this->location - glm::vec2(ofGetWidth() * 0.5, ofGetHeight() * 0.5)) > 500) {

		glm::vec2 area = this->seek(glm::vec2(ofGetWidth() * 0.5, ofGetHeight() * 0.5));
		this->applyForce(area);
	}

	// 前進
	this->velocity += this->acceleration;
	if (glm::length(this->velocity) > this->max_speed) {

		this->velocity = glm::normalize(this->velocity) * this->max_speed;
	}
	this->location += this->velocity;
	this->acceleration *= 0;
	this->velocity *= 0.98;

	// 記録
	this->log.push_back(glm::vec3(this->location, 0));
	while (this->log.size() > 80) {

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

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

	if (this->log.size() < 3) { return; }

	auto head_size = 3;
	ofMesh mesh;
	vector<glm::vec3> right, left;
	glm::vec3 last_location;
	float last_theta;

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

		auto loc = this->log[k];
		auto next = this->log[k + 1];

		auto direction = next - loc;
		auto theta = atan2(direction.y, direction.x);

		right.push_back(loc + glm::vec3(ofMap(k, 0, this->log.size(), 0, head_size) * cos(theta + PI * 0.5), ofMap(k, 0, this->log.size(), 0, head_size) * sin(theta + PI * 0.5), 0));
		left.push_back(loc + glm::vec3(ofMap(k, 0, this->log.size(), 0, head_size) * cos(theta - PI * 0.5), ofMap(k, 0, this->log.size(), 0, head_size) * sin(theta - PI * 0.5), 0));

		last_location = loc;
		last_theta = theta;
	}

	for (int k = 0; k < right.size(); k++) {

		mesh.addVertex(left[k]);
		mesh.addVertex(right[k]);

		mesh.addColor(ofColor(this->color, ofMap(k, 0, this->log.size(), 0, 255)));
		mesh.addColor(ofColor(this->color, ofMap(k, 0, this->log.size(), 0, 255)));
	}

	for (int k = 0; k < mesh.getNumVertices() - 2; k += 2) {

		mesh.addIndex(k + 0); mesh.addIndex(k + 1); mesh.addIndex(k + 3);
		mesh.addIndex(k + 0); mesh.addIndex(k + 2); mesh.addIndex(k + 3);
	}

	auto tmp_header_size = ofMap(this->log.size() - 2, 0, this->log.size(), 0, head_size);
	auto tmp_alpha = ofMap(this->log.size() - 2, 0, this->log.size(), 0, 255);

	mesh.addVertex(last_location);
	mesh.addColor(ofColor(this->color, tmp_alpha));

	int index = mesh.getNumVertices();
	for (auto theta = last_theta - PI * 0.5; theta <= last_theta + PI * 0.5; theta += PI / 20) {

		mesh.addVertex(last_location + glm::vec3(tmp_header_size * cos(theta), tmp_header_size * sin(theta), 0));
		mesh.addColor(ofColor(this->color, tmp_alpha));
	}

	for (int k = index; k < mesh.getNumVertices() - 1; k++) {

		mesh.addIndex(index); mesh.addIndex(k + 0); mesh.addIndex(k + 1);
	}

	mesh.draw();
}

//--------------------------------------------------------------
glm::vec2 Particle::separate(vector<unique_ptr<Particle>>& particles) {

	glm::vec2 result;
	glm::vec2 sum;
	int count = 0;
	for (auto& other : particles) {

		glm::vec2 difference = this->location - other->location;
		if (glm::length(difference) > 0 && glm::length(difference) < this->range * 0.5) {

			sum += glm::normalize(difference);
			count++;
		}
	}

	if (count > 0) {

		glm::vec2 avg = sum / count;
		avg = avg * this->max_speed;
		if (glm::length(avg) > this->max_speed) {

			avg = glm::normalize(avg) * this->max_speed;
		}
		glm::vec2 steer = avg - this->velocity;
		if (glm::length(steer) > this->max_force) {

			steer = glm::normalize(steer) * this->max_force;
		}
		result = steer;
	}

	return result;
}

//--------------------------------------------------------------
glm::vec2 Particle::align(vector<unique_ptr<Particle>>& particles) {

	glm::vec2 result;
	glm::vec2 sum;
	int count = 0;
	for (auto& other : particles) {

		glm::vec2 difference = this->location - other->location;
		if (glm::length(difference) > 0 && glm::length(difference) < this->range) {

			sum += other->velocity;
			count++;
		}
	}

	if (count > 0) {

		glm::vec2 avg = sum / count;
		avg = avg * this->max_speed;
		if (glm::length(avg) > this->max_speed) {

			avg = glm::normalize(avg) * this->max_speed;
		}
		glm::vec2 steer = avg - this->velocity;
		if (glm::length(steer) > this->max_force) {

			steer = glm::normalize(steer) * this->max_force;
		}
		result = steer;
	}

	return result;
}

//--------------------------------------------------------------
glm::vec2 Particle::cohesion(vector<unique_ptr<Particle>>& particles) {

	glm::vec2 result;
	glm::vec2 sum;
	int count = 0;
	for (auto& other : particles) {

		glm::vec2 difference = this->location - other->location;
		if (glm::length(difference) > 0 && glm::length(difference) < this->range * 0.5) {

			sum += other->location;
			count++;
		}
	}

	if (count > 0) {

		result = this->seek(sum / count);
	}

	return result;
}

//--------------------------------------------------------------
glm::vec2 Particle::seek(glm::vec2 target) {

	glm::vec2 desired = target - this->location;
	float distance = glm::length(desired);
	desired = glm::normalize(desired);
	desired *= distance < this->range ? ofMap(distance, 0, this->range, 0, this->max_speed) : max_speed;
	glm::vec2 steer = desired - this->velocity;
	if (glm::length(steer) > this->max_force) {

		steer = glm::normalize(steer) * this->max_force;
	}
	return steer;
}

//--------------------------------------------------------------
void Particle::applyForce(glm::vec2 force) {

	this->acceleration += force;
}

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#include "Particle.h"

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

Particle::Particle() {

this->location = glm::vec2(ofRandom(ofGetWidth()), ofRandom(ofGetHeight()));

this->velocity = glm::vec2(ofRandom(-1, 1), ofRandom(-1, 1));

this->range = 50;

this->max_force = 1;

this->max_speed = 8;

ofColor color;

vector<int> hex_list = { 0xef476f, 0xffd166, 0x06d6a0, 0x118ab2, 0x073b4c };

vector<ofColor> base_color_list;

for (auto hex : hex_list) {

color.setHex(hex);

base_color_list.push_back(color);

}

this->color = base_color_list[(int)ofRandom(base_color_list.size())];

}

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

Particle::~Particle() {}

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

void Particle::update(vector<unique_ptr<Particle>>& particles) {

// 分離

glm::vec2 separate = this->separate(particles);

this->applyForce(separate);

// 整列

glm::vec2 align = this->align(particles);

this->applyForce(align);

// 結合

glm::vec2 cohesion = this->cohesion(particles);

this->applyForce(cohesion);

// 自我

if (glm::length(this->velocity) > 0) {

glm::vec2 future = glm::normalize(this->velocity) * this->range;

future += this->location;

float angle = ofRandom(360);

glm::vec2 target = future + glm::vec2(this->range * 0.5 * cos(angle * DEG_TO_RAD), this->range * 0.5 * sin(angle * DEG_TO_RAD));

glm::vec2 ego = this->seek(target);

this->applyForce(ego);

}

// 境界

if (glm::length(this->location - glm::vec2(ofGetWidth() * 0.5, ofGetHeight() * 0.5)) > 500) {

glm::vec2 area = this->seek(glm::vec2(ofGetWidth() * 0.5, ofGetHeight() * 0.5));

this->applyForce(area);

}

// 前進

this->velocity += this->acceleration;

if (glm::length(this->velocity) > this->max_speed) {

this->velocity = glm::normalize(this->velocity) * this->max_speed;

}

this->location += this->velocity;

this->acceleration *= 0;

this->velocity *= 0.98;

// 記録

this->log.push_back(glm::vec3(this->location, 0));

while (this->log.size() > 80) {

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

}

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

void Particle::draw() {

if (this->log.size() < 3) { return; }

auto head_size = 3;

ofMesh mesh;

vector<glm::vec3> right, left;

glm::vec3 last_location;

float last_theta;

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

auto loc = this->log[k];

auto next = this->log[k + 1];

auto direction = next - loc;

auto theta = atan2(direction.y, direction.x);

right.push_back(loc + glm::vec3(ofMap(k, 0, this->log.size(), 0, head_size) * cos(theta + PI * 0.5), ofMap(k, 0, this->log.size(), 0, head_size) * sin(theta + PI * 0.5), 0));

left.push_back(loc + glm::vec3(ofMap(k, 0, this->log.size(), 0, head_size) * cos(theta - PI * 0.5), ofMap(k, 0, this->log.size(), 0, head_size) * sin(theta - PI * 0.5), 0));

last_location = loc;

last_theta = theta;

}

for (int k = 0; k < right.size(); k++) {

mesh.addVertex(left[k]);

mesh.addVertex(right[k]);

mesh.addColor(ofColor(this->color, ofMap(k, 0, this->log.size(), 0, 255)));

}

for (int k = 0; k < mesh.getNumVertices() - 2; k += 2) {

mesh.addIndex(k + 0); mesh.addIndex(k + 1); mesh.addIndex(k + 3);

mesh.addIndex(k + 0); mesh.addIndex(k + 2); mesh.addIndex(k + 3);

}

auto tmp_header_size = ofMap(this->log.size() - 2, 0, this->log.size(), 0, head_size);

auto tmp_alpha = ofMap(this->log.size() - 2, 0, this->log.size(), 0, 255);

mesh.addVertex(last_location);

mesh.addColor(ofColor(this->color, tmp_alpha));

int index = mesh.getNumVertices();

for (auto theta = last_theta - PI * 0.5; theta <= last_theta + PI * 0.5; theta += PI / 20) {

mesh.addVertex(last_location + glm::vec3(tmp_header_size * cos(theta), tmp_header_size * sin(theta), 0));

mesh.addColor(ofColor(this->color, tmp_alpha));

}

for (int k = index; k < mesh.getNumVertices() - 1; k++) {

mesh.addIndex(index); mesh.addIndex(k + 0); mesh.addIndex(k + 1);

}

mesh.draw();

}

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

glm::vec2 Particle::separate(vector<unique_ptr<Particle>>& particles) {

glm::vec2 result;

glm::vec2 sum;

int count = 0;

for (auto& other : particles) {

glm::vec2 difference = this->location - other->location;

if (glm::length(difference) > 0 && glm::length(difference) < this->range * 0.5) {

sum += glm::normalize(difference);

count++;

}

if (count > 0) {

glm::vec2 avg = sum / count;

avg = avg * this->max_speed;

if (glm::length(avg) > this->max_speed) {

avg = glm::normalize(avg) * this->max_speed;

}

glm::vec2 steer = avg - this->velocity;

if (glm::length(steer) > this->max_force) {

steer = glm::normalize(steer) * this->max_force;

}

result = steer;

}

return result;

}

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

glm::vec2 Particle::align(vector<unique_ptr<Particle>>& particles) {

glm::vec2 result;

glm::vec2 sum;

int count = 0;

for (auto& other : particles) {

glm::vec2 difference = this->location - other->location;

if (glm::length(difference) > 0 && glm::length(difference) < this->range) {

sum += other->velocity;

count++;

}

if (count > 0) {

glm::vec2 avg = sum / count;

avg = avg * this->max_speed;

if (glm::length(avg) > this->max_speed) {

avg = glm::normalize(avg) * this->max_speed;

}

glm::vec2 steer = avg - this->velocity;

if (glm::length(steer) > this->max_force) {

steer = glm::normalize(steer) * this->max_force;

}

result = steer;

}

return result;

}

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

glm::vec2 Particle::cohesion(vector<unique_ptr<Particle>>& particles) {

glm::vec2 result;

glm::vec2 sum;

int count = 0;

for (auto& other : particles) {

glm::vec2 difference = this->location - other->location;

if (glm::length(difference) > 0 && glm::length(difference) < this->range * 0.5) {

sum += other->location;

count++;

}

if (count > 0) {

result = this->seek(sum / count);

}

return result;

}

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

glm::vec2 Particle::seek(glm::vec2 target) {

glm::vec2 desired = target - this->location;

float distance = glm::length(desired);

desired = glm::normalize(desired);

desired *= distance < this->range ? ofMap(distance, 0, this->range, 0, this->max_speed) : max_speed;

glm::vec2 steer = desired - this->velocity;

if (glm::length(steer) > this->max_force) {

steer = glm::normalize(steer) * this->max_force;

}

return steer;

}

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

void Particle::applyForce(glm::vec2 force) {

this->acceleration += force;

}

[ Link ]
https://github.com/junkiyoshi/Insta20201010

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