2020年12月 – ページ 4 – プログラミング de 落描き

2020年12月22日2020年12月22日

Torus swell. Draw by openFrameworks

[ Video ]

[ About ]
トーラスのうねり。

Torus swell.

[ 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) {};

	glm::vec3 make_point(float R, float r, float u, float v);

	ofEasyCam cam;
	vector<ofColor> base_color_list;

	float u_seed, v_seed;
	vector<pair<float, float>> deg_list;
	vector<vector<glm::vec3>> log_list;
	vector<ofColor> color_list;
	vector<float> life_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) {};

glm::vec3 make_point(float R, float r, float u, float v);

ofEasyCam cam;

vector<ofColor> base_color_list;

float u_seed, v_seed;

vector<pair<float, float>> deg_list;

vector<vector<glm::vec3>> log_list;

vector<ofColor> color_list;

vector<float> life_list;

};

#include "ofApp.h"	

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

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

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

	this->u_seed = ofRandom(1000);
	this->v_seed = ofRandom(1000);

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

		color.setHex(hex);
		this->base_color_list.push_back(color);
	}
}

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

	while (this->deg_list.size() < 800) {

		auto deg_pair = make_pair(ofRandom(360), ofRandom(360));
		this->deg_list.push_back(deg_pair);
		vector<glm::vec3> log;
		this->log_list.push_back(log);
		this->color_list.push_back(this->base_color_list[(int)ofRandom(this->base_color_list.size())]);
		this->life_list.push_back(ofRandom(60, 120));
	}

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

		this->life_list[i] -= 1;
		if (this->life_list[i] < 0) {

			this->deg_list.erase(this->deg_list.begin() + i);
			this->log_list.erase(this->log_list.begin() + i);
			this->color_list.erase(this->color_list.begin() + i);
			this->life_list.erase(this->life_list.begin() + i);

			continue;
		}

		auto location = this->make_point(300, 50, this->deg_list[i].first, this->deg_list[i].second);
		auto u_param = ofMap(ofNoise(glm::vec4(location * 0.003, this->u_seed + ofGetFrameNum() * 0.005)), 0, 1, -30, 30);
		auto v_param = ofMap(ofNoise(glm::vec4(location * 0.003, this->v_seed + ofGetFrameNum() * 0.005)), 0, 1, -5, 5);

		this->deg_list[i].first += u_param;
		this->deg_list[i].second += v_param;

		this->log_list[i].push_back(this->make_point(300, 50, this->deg_list[i].first, this->deg_list[i].second));
		while (this->log_list[i].size() > 150) {

			this->log_list[i].erase(this->log_list[i].begin());
		}
	}
}

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

	this->cam.begin();

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

		ofSetColor(this->color_list[i]);

		if (this->life_list[i] > 60) {

			ofSetLineWidth(2);
		}
		else {

			ofSetLineWidth(ofMap(this->life_list[i], 0, 60, 0, 2));
		}

		ofBeginShape();
		ofVertices(this->log_list[i]);
		ofEndShape();
	}

	this->cam.end();
}

//--------------------------------------------------------------
glm::vec3 ofApp::make_point(float R, float r, float u, float v) {

	// 数学デッサン教室 描いて楽しむ数学たち　P.31

	u *= DEG_TO_RAD;
	v *= DEG_TO_RAD;

	auto x = (R + r * cos(u)) * cos(v);
	auto y = (R + r * cos(u)) * sin(v);
	auto z = r * sin(u);

	return glm::vec3(x, y, z);
}

//--------------------------------------------------------------
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(0);

ofEnableDepthTest();

ofEnableBlendMode(ofBlendMode::OF_BLENDMODE_ADD);

ofNoFill();

this->u_seed = ofRandom(1000);

this->v_seed = ofRandom(1000);

ofColor color;

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

for (auto hex : hex_list) {

color.setHex(hex);

this->base_color_list.push_back(color);

}

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

void ofApp::update() {

while (this->deg_list.size() < 800) {

auto deg_pair = make_pair(ofRandom(360), ofRandom(360));

this->deg_list.push_back(deg_pair);

vector<glm::vec3> log;

this->log_list.push_back(log);

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

this->life_list.push_back(ofRandom(60, 120));

}

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

this->life_list[i] -= 1;

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

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

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

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

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

continue;

}

auto location = this->make_point(300, 50, this->deg_list[i].first, this->deg_list[i].second);

auto u_param = ofMap(ofNoise(glm::vec4(location * 0.003, this->u_seed + ofGetFrameNum() * 0.005)), 0, 1, -30, 30);

auto v_param = ofMap(ofNoise(glm::vec4(location * 0.003, this->v_seed + ofGetFrameNum() * 0.005)), 0, 1, -5, 5);

this->deg_list[i].first += u_param;

this->deg_list[i].second += v_param;

this->log_list[i].push_back(this->make_point(300, 50, this->deg_list[i].first, this->deg_list[i].second));

while (this->log_list[i].size() > 150) {

this->log_list[i].erase(this->log_list[i].begin());

}

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

void ofApp::draw() {

this->cam.begin();

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

ofSetColor(this->color_list[i]);

if (this->life_list[i] > 60) {

ofSetLineWidth(2);

}

else {

ofSetLineWidth(ofMap(this->life_list[i], 0, 60, 0, 2));

}

ofBeginShape();

ofVertices(this->log_list[i]);

ofEndShape();

}

this->cam.end();

}

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

glm::vec3 ofApp::make_point(float R, float r, float u, float v) {

// 数学デッサン教室描いて楽しむ数学たち　P.31

u *= DEG_TO_RAD;

v *= DEG_TO_RAD;

auto x = (R + r * cos(u)) * cos(v);

auto y = (R + r * cos(u)) * sin(v);

auto z = r * sin(u);

return glm::vec3(x, y, z);

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20201222

2020年12月21日2021年9月24日

Noise walk on sphere. Draw by openFrameworks

[ Video ]

[ About ]
球体上のノイズウォーク。

Noise walk on sphere.

[ 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) {};

	glm::vec3 make_point(float radius, float phi_deg, float theta_deg);

	ofEasyCam cam;
	vector<ofColor> base_color_list;

	float phi_seed, theta_seed;
	vector<pair<float, float>> deg_list;
	vector<vector<glm::vec3>> log_list;
	vector<ofColor> color_list;
	vector<float> life_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) {};

glm::vec3 make_point(float radius, float phi_deg, float theta_deg);

ofEasyCam cam;

vector<ofColor> base_color_list;

float phi_seed, theta_seed;

vector<pair<float, float>> deg_list;

vector<vector<glm::vec3>> log_list;

vector<ofColor> color_list;

vector<float> life_list;

};

#include "ofApp.h"	

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

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

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

	this->phi_seed = ofRandom(1000);
	this->theta_seed = ofRandom(1000);

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

		color.setHex(hex);
		this->base_color_list.push_back(color);
	}
}

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

	while (this->deg_list.size() < 1800) {

		auto deg_pair = make_pair(ofRandom(360), ofRandom(180));
		this->deg_list.push_back(deg_pair);
		vector<glm::vec3> log;
		this->log_list.push_back(log);
		this->color_list.push_back(this->base_color_list[(int)ofRandom(this->base_color_list.size())]);
		this->life_list.push_back(ofRandom(60, 120));
	}

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

		this->life_list[i] -= 1;
		if (this->life_list[i] < 0) {

			this->deg_list.erase(this->deg_list.begin() + i);
			this->log_list.erase(this->log_list.begin() + i);
			this->color_list.erase(this->color_list.begin() + i);
			this->life_list.erase(this->life_list.begin() + i);

			continue;
		}

		auto location = this->make_point(300, this->deg_list[i].first, this->deg_list[i].second);
		auto phi_param = ofMap(ofNoise(glm::vec4(location * 0.005, this->phi_seed + ofGetFrameNum() * 0.005)), 0, 1, -5, 5);
		auto theta_param = ofMap(ofNoise(glm::vec4(location * 0.005, this->theta_seed + ofGetFrameNum() * 0.005)), 0, 1, -5, 5);

		this->deg_list[i].first += phi_param;
		this->deg_list[i].second += theta_param;

		this->log_list[i].push_back(this->make_point(300, this->deg_list[i].first, this->deg_list[i].second));
		while (this->log_list[i].size() > 150) {

			this->log_list[i].erase(this->log_list[i].begin());
		}
	}
}

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

	this->cam.begin();
	ofRotateX(90);
	ofRotateZ(ofGetFrameNum() * 0.25);

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

		ofSetColor(this->color_list[i]);

		if (this->life_list[i] > 60) {

			ofSetLineWidth(2.5);
		}
		else {

			ofSetLineWidth(ofMap(this->life_list[i], 0, 60, 0, 2.5));
		}

		ofBeginShape();
		ofVertices(this->log_list[i]);
		ofEndShape();
	}

	this->cam.end();
}

//--------------------------------------------------------------
glm::vec3 ofApp::make_point(float radius, float phi_deg, float theta_deg) {

	return glm::vec3(
		radius * sin(theta_deg * DEG_TO_RAD) * cos(phi_deg * DEG_TO_RAD),
		radius * sin(theta_deg * DEG_TO_RAD) * sin(phi_deg * DEG_TO_RAD),
		radius * cos(theta_deg * DEG_TO_RAD));
}


//--------------------------------------------------------------
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(0);

ofEnableDepthTest();

ofEnableBlendMode(ofBlendMode::OF_BLENDMODE_ADD);

ofNoFill();

this->phi_seed = ofRandom(1000);

this->theta_seed = ofRandom(1000);

ofColor color;

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

for (auto hex : hex_list) {

color.setHex(hex);

this->base_color_list.push_back(color);

}

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

void ofApp::update() {

while (this->deg_list.size() < 1800) {

auto deg_pair = make_pair(ofRandom(360), ofRandom(180));

this->deg_list.push_back(deg_pair);

vector<glm::vec3> log;

this->log_list.push_back(log);

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

this->life_list.push_back(ofRandom(60, 120));

}

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

this->life_list[i] -= 1;

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

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

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

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

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

continue;

}

auto location = this->make_point(300, this->deg_list[i].first, this->deg_list[i].second);

auto phi_param = ofMap(ofNoise(glm::vec4(location * 0.005, this->phi_seed + ofGetFrameNum() * 0.005)), 0, 1, -5, 5);

auto theta_param = ofMap(ofNoise(glm::vec4(location * 0.005, this->theta_seed + ofGetFrameNum() * 0.005)), 0, 1, -5, 5);

this->deg_list[i].first += phi_param;

this->deg_list[i].second += theta_param;

this->log_list[i].push_back(this->make_point(300, this->deg_list[i].first, this->deg_list[i].second));

while (this->log_list[i].size() > 150) {

this->log_list[i].erase(this->log_list[i].begin());

}

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

void ofApp::draw() {

this->cam.begin();

ofRotateX(90);

ofRotateZ(ofGetFrameNum() * 0.25);

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

ofSetColor(this->color_list[i]);

if (this->life_list[i] > 60) {

ofSetLineWidth(2.5);

}

else {

ofSetLineWidth(ofMap(this->life_list[i], 0, 60, 0, 2.5));

}

ofBeginShape();

ofVertices(this->log_list[i]);

ofEndShape();

}

this->cam.end();

}

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

glm::vec3 ofApp::make_point(float radius, float phi_deg, float theta_deg) {

return glm::vec3(

radius * sin(theta_deg * DEG_TO_RAD) * cos(phi_deg * DEG_TO_RAD),

radius * sin(theta_deg * DEG_TO_RAD) * sin(phi_deg * DEG_TO_RAD),

radius * cos(theta_deg * DEG_TO_RAD));

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20201221

2020年12月20日

Play on sphere. Draw by openFrameworks

[ Video ]

[ About ]
球体ビューワー。

Play on sphere.

[ 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;

	ofImage image;
	cv::Mat frame;
};

#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;

ofImage image;

cv::Mat frame;

};

#include "ofApp.h"

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

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

	ofBackground(239);
	ofEnableDepthTest();
	ofSetLineWidth(1.5);

	this->cap.open("D:\\MP4\\Pexels Videos 2441067.mp4");
	this->cap_size = cv::Size(128, 72);

	this->image.allocate(this->cap_size.width, this->cap_size.height, OF_IMAGE_COLOR);
	this->frame = cv::Mat(cv::Size(this->image.getWidth(), this->image.getHeight()), CV_MAKETYPE(CV_8UC3, this->image.getPixels().getNumChannels()), this->image.getPixels().getData(), 0);

	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);
	}
}

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

	ofSeedRandom(39);
}

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

	this->cam.begin();
	ofRotateX(270);
	ofRotateZ(ofGetFrameNum() * 0.5);

	ofMesh face, line;
	line.setMode(ofPrimitiveMode::OF_PRIMITIVE_LINES);

	float phi_deg_step = 15;
	float theta_deg_step = 9;
	for (int radius = 100; radius <= 300; radius += 100) {
		for (float phi_deg = 0; phi_deg < 360; phi_deg += phi_deg_step) {

			for (float theta_deg = 0; theta_deg <= 180; theta_deg += theta_deg_step) {

				face.clear();
				line.clear();

				auto noise_value = ofNoise(glm::vec4(
					radius * sin(theta_deg * DEG_TO_RAD) * cos(phi_deg * DEG_TO_RAD) * 0.008,
					radius * sin(theta_deg * DEG_TO_RAD) * sin(phi_deg * DEG_TO_RAD) * 0.008,
					radius * cos(theta_deg * DEG_TO_RAD) * 0.008,
					ofGetFrameNum() * 0.005));

				if (noise_value > 0.55) {

					vector<glm::vec3> vertices;

					vertices.push_back(glm::vec3(
						radius * sin((theta_deg - theta_deg_step * 0.5) * DEG_TO_RAD) * cos((phi_deg + phi_deg_step * 0.5) * DEG_TO_RAD),
						radius * sin((theta_deg - theta_deg_step * 0.5) * DEG_TO_RAD) * sin((phi_deg + phi_deg_step * 0.5) * DEG_TO_RAD),
						radius * cos((theta_deg - theta_deg_step * 0.5) * DEG_TO_RAD)));
					vertices.push_back(glm::vec3(
						radius * sin((theta_deg - theta_deg_step * 0.5) * DEG_TO_RAD) * cos((phi_deg - phi_deg_step * 0.5) * DEG_TO_RAD),
						radius * sin((theta_deg - theta_deg_step * 0.5) * DEG_TO_RAD) * sin((phi_deg - phi_deg_step * 0.5) * DEG_TO_RAD),
						radius * cos((theta_deg - theta_deg_step * 0.5) * DEG_TO_RAD)));
					vertices.push_back(glm::vec3(
						radius * sin((theta_deg + theta_deg_step * 0.5) * DEG_TO_RAD) * cos((phi_deg + phi_deg_step * 0.5) * DEG_TO_RAD),
						radius * sin((theta_deg + theta_deg_step * 0.5) * DEG_TO_RAD) * sin((phi_deg + phi_deg_step * 0.5) * DEG_TO_RAD),
						radius * cos((theta_deg + theta_deg_step * 0.5) * DEG_TO_RAD)));
					vertices.push_back(glm::vec3(
						radius * sin((theta_deg + theta_deg_step * 0.5) * DEG_TO_RAD) * cos((phi_deg - phi_deg_step * 0.5) * DEG_TO_RAD),
						radius * sin((theta_deg + theta_deg_step * 0.5) * DEG_TO_RAD) * sin((phi_deg - phi_deg_step * 0.5) * DEG_TO_RAD),
						radius * cos((theta_deg + theta_deg_step * 0.5) * DEG_TO_RAD)));

					face.addVertices(vertices);
					line.addVertices(vertices);

					face.addTexCoord(glm::vec3(this->cap_size.width, 0, 0));
					face.addTexCoord(glm::vec3(0, 0, 0));
					face.addTexCoord(glm::vec3(this->cap_size.width, this->cap_size.height, 0));
					face.addTexCoord(glm::vec3(0, this->cap_size.height, 0));

					face.addIndex(0); face.addIndex(1); face.addIndex(3);
					face.addIndex(0); face.addIndex(3); face.addIndex(2);

					line.addIndex(0); line.addIndex(1);
					line.addIndex(0); line.addIndex(2);
					line.addIndex(3); line.addIndex(1);
					line.addIndex(3); line.addIndex(2);

					int n = int(ofMap(ofNoise(vertices[0] * 0.05), 0, 1, 0, this->number_of_frames) + ofGetFrameNum()) % this->number_of_frames;
					this->frame_list[n].copyTo(this->frame);
					this->image.update();

					ofSetColor(255);
					ofFill();
					this->image.bind();
					face.draw();
					this->image.unbind();

					ofSetColor(39);
					line.draw();
				}
			}
		}
	}

	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();

ofSetLineWidth(1.5);

this->cap.open("D:\\MP4\\Pexels Videos 2441067.mp4");

this->cap_size = cv::Size(128, 72);

this->image.allocate(this->cap_size.width, this->cap_size.height, OF_IMAGE_COLOR);

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

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);

}

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

void ofApp::update() {

ofSeedRandom(39);

}

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

void ofApp::draw() {

this->cam.begin();

ofRotateX(270);

ofRotateZ(ofGetFrameNum() * 0.5);

ofMesh face, line;

line.setMode(ofPrimitiveMode::OF_PRIMITIVE_LINES);

float phi_deg_step = 15;

float theta_deg_step = 9;

for (int radius = 100; radius <= 300; radius += 100) {

for (float phi_deg = 0; phi_deg < 360; phi_deg += phi_deg_step) {

for (float theta_deg = 0; theta_deg <= 180; theta_deg += theta_deg_step) {

face.clear();

line.clear();

auto noise_value = ofNoise(glm::vec4(

radius * sin(theta_deg * DEG_TO_RAD) * cos(phi_deg * DEG_TO_RAD) * 0.008,

radius * sin(theta_deg * DEG_TO_RAD) * sin(phi_deg * DEG_TO_RAD) * 0.008,

radius * cos(theta_deg * DEG_TO_RAD) * 0.008,

ofGetFrameNum() * 0.005));

if (noise_value > 0.55) {

vector<glm::vec3> vertices;

vertices.push_back(glm::vec3(

radius * sin((theta_deg - theta_deg_step * 0.5) * DEG_TO_RAD) * cos((phi_deg + phi_deg_step * 0.5) * DEG_TO_RAD),

radius * sin((theta_deg - theta_deg_step * 0.5) * DEG_TO_RAD) * sin((phi_deg + phi_deg_step * 0.5) * DEG_TO_RAD),

radius * cos((theta_deg - theta_deg_step * 0.5) * DEG_TO_RAD)));

vertices.push_back(glm::vec3(

radius * sin((theta_deg - theta_deg_step * 0.5) * DEG_TO_RAD) * cos((phi_deg - phi_deg_step * 0.5) * DEG_TO_RAD),

radius * sin((theta_deg - theta_deg_step * 0.5) * DEG_TO_RAD) * sin((phi_deg - phi_deg_step * 0.5) * DEG_TO_RAD),

radius * cos((theta_deg - theta_deg_step * 0.5) * DEG_TO_RAD)));

vertices.push_back(glm::vec3(

radius * sin((theta_deg + theta_deg_step * 0.5) * DEG_TO_RAD) * cos((phi_deg + phi_deg_step * 0.5) * DEG_TO_RAD),

radius * sin((theta_deg + theta_deg_step * 0.5) * DEG_TO_RAD) * sin((phi_deg + phi_deg_step * 0.5) * DEG_TO_RAD),

radius * cos((theta_deg + theta_deg_step * 0.5) * DEG_TO_RAD)));

vertices.push_back(glm::vec3(

radius * sin((theta_deg + theta_deg_step * 0.5) * DEG_TO_RAD) * cos((phi_deg - phi_deg_step * 0.5) * DEG_TO_RAD),

radius * sin((theta_deg + theta_deg_step * 0.5) * DEG_TO_RAD) * sin((phi_deg - phi_deg_step * 0.5) * DEG_TO_RAD),

radius * cos((theta_deg + theta_deg_step * 0.5) * DEG_TO_RAD)));

face.addVertices(vertices);

line.addVertices(vertices);

face.addTexCoord(glm::vec3(this->cap_size.width, 0, 0));

face.addTexCoord(glm::vec3(0, 0, 0));

face.addTexCoord(glm::vec3(this->cap_size.width, this->cap_size.height, 0));

face.addTexCoord(glm::vec3(0, this->cap_size.height, 0));

face.addIndex(0); face.addIndex(1); face.addIndex(3);

face.addIndex(0); face.addIndex(3); face.addIndex(2);

line.addIndex(0); line.addIndex(1);

line.addIndex(0); line.addIndex(2);

line.addIndex(3); line.addIndex(1);

line.addIndex(3); line.addIndex(2);

int n = int(ofMap(ofNoise(vertices[0] * 0.05), 0, 1, 0, this->number_of_frames) + ofGetFrameNum()) % this->number_of_frames;

this->frame_list[n].copyTo(this->frame);

this->image.update();

ofSetColor(255);

ofFill();

this->image.bind();

face.draw();

this->image.unbind();

ofSetColor(39);

line.draw();

}

this->cam.end();

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20201220

https://www.pexels.com/video/women-in-swimwear-2441067/

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