2020年8月24日 – プログラミング de 落描き

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#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;

	ofMesh mesh;
};

#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;

ofMesh mesh;

};

#include "ofApp.h"

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

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

	ofBackground(0);
	ofSetColor(255);
	ofEnableDepthTest();

	this->cap.open("D:\\MP4\\openframeworks 2020-07-16 18-28-52.mp4");
	this->cap_size = cv::Size(720, 720);

	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);

	int n = ofGetFrameNum() % this->number_of_frames;
	this->frame_list[n].copyTo(this->frame);
	this->image.update();

	this->mesh.clear();

	int x_span = 144;
	int y_span = 72;

	vector<glm::vec3> base_location_list = { glm::vec3(-500, -500, 0), glm::vec3(-500, 500, 0), glm::vec3(500, -500, 0), glm::vec3(500, 500, 0) };

	for (auto& base_location : base_location_list) {
		auto noise_seed = glm::vec3(ofRandom(1000), ofRandom(1000), ofRandom(1000));

		for (int i = 0; i < 5; i++) {

			int start_index = this->mesh.getNumVertices();

			// 上
			int x = this->cap_size.width * -0.5 + i * x_span * 0.5;
			int y = this->cap_size.height * -0.5 + i * y_span;
			int index = start_index;

			this->mesh.addVertex(glm::vec3(x, y, 0));
			this->mesh.addVertex(glm::vec3(x * -1, y, 0));
			this->mesh.addVertex(glm::vec3(x * -1, y + y_span, 0));
			this->mesh.addVertex(glm::vec3(x, y + y_span, 0));

			this->mesh.addTexCoord(glm::vec3(i * x_span * 0.5, i * y_span, 0));
			this->mesh.addTexCoord(glm::vec3(this->cap_size.width - i * x_span * 0.5, i * y_span, 0));
			this->mesh.addTexCoord(glm::vec3(this->cap_size.width - i * x_span * 0.5, i * y_span + y_span, 0));
			this->mesh.addTexCoord(glm::vec3(i * x_span * 0.5, i * y_span + y_span, 0));

			this->mesh.addIndex(index + 0); this->mesh.addIndex(index + 1); this->mesh.addIndex(index + 2);
			this->mesh.addIndex(index + 0); this->mesh.addIndex(index + 2); this->mesh.addIndex(index + 3);

			// 左
			index = this->mesh.getNumVertices();

			this->mesh.addVertex(glm::vec3(x, y + y_span, 0));
			this->mesh.addVertex(glm::vec3(x + x_span * 0.5, y + y_span, 0));
			this->mesh.addVertex(glm::vec3(x + x_span * 0.5, y * -1 - y_span, 0));
			this->mesh.addVertex(glm::vec3(x, y * -1 - y_span, 0));

			this->mesh.addTexCoord(glm::vec3(i * x_span * 0.5, i * y_span + y_span, 0));
			this->mesh.addTexCoord(glm::vec3(i * x_span * 0.5 + x_span * 0.5, i * y_span + y_span, 0));
			this->mesh.addTexCoord(glm::vec3(i * x_span * 0.5 + x_span * 0.5, this->cap_size.height - i * y_span - y_span, 0));
			this->mesh.addTexCoord(glm::vec3(i * x_span * 0.5, this->cap_size.height - i * y_span - y_span, 0));

			this->mesh.addIndex(index + 0); this->mesh.addIndex(index + 1); this->mesh.addIndex(index + 2);
			this->mesh.addIndex(index + 0); this->mesh.addIndex(index + 2); this->mesh.addIndex(index + 3);

			// 下

			y = this->cap_size.height * 0.5 - i * y_span - y_span;
			index = this->mesh.getNumVertices();

			this->mesh.addVertex(glm::vec3(x, y, 0));
			this->mesh.addVertex(glm::vec3(x * -1, y, 0));
			this->mesh.addVertex(glm::vec3(x * -1, y + y_span, 0));
			this->mesh.addVertex(glm::vec3(x, y + y_span, 0));

			this->mesh.addTexCoord(glm::vec3(i * x_span * 0.5, this->cap_size.height - i * y_span - y_span, 0));
			this->mesh.addTexCoord(glm::vec3(this->cap_size.width - i * x_span * 0.5, this->cap_size.height - i * y_span - y_span, 0));
			this->mesh.addTexCoord(glm::vec3(this->cap_size.width - i * x_span * 0.5, this->cap_size.height - i * y_span, 0));
			this->mesh.addTexCoord(glm::vec3(i * x_span * 0.5, this->cap_size.height - i * y_span, 0));

			this->mesh.addIndex(index + 0); this->mesh.addIndex(index + 1); this->mesh.addIndex(index + 2);
			this->mesh.addIndex(index + 0); this->mesh.addIndex(index + 2); this->mesh.addIndex(index + 3);

			// 右

			x = this->cap_size.width * 0.5 - i * x_span * 0.5 - x_span * 0.5;
			y = this->cap_size.height * -0.5 + i * y_span;
			index = this->mesh.getNumVertices();

			this->mesh.addVertex(glm::vec3(x, y + y_span, 0));
			this->mesh.addVertex(glm::vec3(x + x_span * 0.5, y + y_span, 0));
			this->mesh.addVertex(glm::vec3(x + x_span * 0.5, y * -1 - y_span, 0));
			this->mesh.addVertex(glm::vec3(x, y * -1 - y_span, 0));

			this->mesh.addTexCoord(glm::vec3(this->cap_size.width - i * x_span * 0.5 - x_span * 0.5, i * y_span + y_span, 0));
			this->mesh.addTexCoord(glm::vec3(this->cap_size.width - i * x_span * 0.5, i * y_span + y_span, 0));
			this->mesh.addTexCoord(glm::vec3(this->cap_size.width - i * x_span * 0.5, this->cap_size.height - i * y_span - y_span, 0));
			this->mesh.addTexCoord(glm::vec3(this->cap_size.width - i * x_span * 0.5 - x_span * 0.5, this->cap_size.height - i * y_span - y_span, 0));

			this->mesh.addIndex(index + 0); this->mesh.addIndex(index + 1); this->mesh.addIndex(index + 2);
			this->mesh.addIndex(index + 0); this->mesh.addIndex(index + 2); this->mesh.addIndex(index + 3);

			for (int k = start_index; k < this->mesh.getNumVertices(); k++) {

				auto angle_x = ofMap(ofNoise(noise_seed.x, i * 0.085 + ofGetFrameNum() * 0.005), 0, 1, -PI, PI);
				auto angle_y = ofMap(ofNoise(noise_seed.y, i * 0.085 + ofGetFrameNum() * 0.005), 0, 1, -PI, PI);
				auto angle_z = ofMap(ofNoise(noise_seed.z, i * 0.085 + ofGetFrameNum() * 0.005), 0, 1, -PI, PI);

				auto rotation_x = glm::rotate(glm::mat4(), angle_x, glm::vec3(1, 0, 0));
				auto rotation_y = glm::rotate(glm::mat4(), angle_y, glm::vec3(0, 1, 0));
				auto rotation_z = glm::rotate(glm::mat4(), angle_z, glm::vec3(0, 0, 1));

				glm::vec3 vertex = glm::vec4(this->mesh.getVertex(k), 0) * rotation_y * rotation_x;
				vertex += base_location;

				this->mesh.setVertex(k, vertex);
			}
		}
	}
}

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

	this->cam.begin();
	ofRotateX(180);

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

	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(0);

ofSetColor(255);

ofEnableDepthTest();

this->cap.open("D:\\MP4\\openframeworks 2020-07-16 18-28-52.mp4");

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

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);

int n = ofGetFrameNum() % this->number_of_frames;

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

this->image.update();

this->mesh.clear();

int x_span = 144;

int y_span = 72;

vector<glm::vec3> base_location_list = { glm::vec3(-500, -500, 0), glm::vec3(-500, 500, 0), glm::vec3(500, -500, 0), glm::vec3(500, 500, 0) };

for (auto& base_location : base_location_list) {

auto noise_seed = glm::vec3(ofRandom(1000), ofRandom(1000), ofRandom(1000));

for (int i = 0; i < 5; i++) {

int start_index = this->mesh.getNumVertices();

// 上

int x = this->cap_size.width * -0.5 + i * x_span * 0.5;

int y = this->cap_size.height * -0.5 + i * y_span;

int index = start_index;

this->mesh.addVertex(glm::vec3(x, y, 0));

this->mesh.addVertex(glm::vec3(x * -1, y, 0));

this->mesh.addVertex(glm::vec3(x * -1, y + y_span, 0));

this->mesh.addVertex(glm::vec3(x, y + y_span, 0));

this->mesh.addTexCoord(glm::vec3(i * x_span * 0.5, i * y_span, 0));

this->mesh.addTexCoord(glm::vec3(this->cap_size.width - i * x_span * 0.5, i * y_span, 0));

this->mesh.addTexCoord(glm::vec3(this->cap_size.width - i * x_span * 0.5, i * y_span + y_span, 0));

this->mesh.addTexCoord(glm::vec3(i * x_span * 0.5, i * y_span + y_span, 0));

this->mesh.addIndex(index + 0); this->mesh.addIndex(index + 1); this->mesh.addIndex(index + 2);

this->mesh.addIndex(index + 0); this->mesh.addIndex(index + 2); this->mesh.addIndex(index + 3);

// 左

index = this->mesh.getNumVertices();

this->mesh.addVertex(glm::vec3(x, y + y_span, 0));

this->mesh.addVertex(glm::vec3(x + x_span * 0.5, y + y_span, 0));

this->mesh.addVertex(glm::vec3(x + x_span * 0.5, y * -1 - y_span, 0));

this->mesh.addVertex(glm::vec3(x, y * -1 - y_span, 0));

this->mesh.addTexCoord(glm::vec3(i * x_span * 0.5, i * y_span + y_span, 0));

this->mesh.addTexCoord(glm::vec3(i * x_span * 0.5 + x_span * 0.5, i * y_span + y_span, 0));

this->mesh.addTexCoord(glm::vec3(i * x_span * 0.5 + x_span * 0.5, this->cap_size.height - i * y_span - y_span, 0));

this->mesh.addTexCoord(glm::vec3(i * x_span * 0.5, this->cap_size.height - i * y_span - y_span, 0));

this->mesh.addIndex(index + 0); this->mesh.addIndex(index + 1); this->mesh.addIndex(index + 2);

this->mesh.addIndex(index + 0); this->mesh.addIndex(index + 2); this->mesh.addIndex(index + 3);

// 下

y = this->cap_size.height * 0.5 - i * y_span - y_span;

index = this->mesh.getNumVertices();

this->mesh.addVertex(glm::vec3(x, y, 0));

this->mesh.addVertex(glm::vec3(x * -1, y, 0));

this->mesh.addVertex(glm::vec3(x * -1, y + y_span, 0));

this->mesh.addVertex(glm::vec3(x, y + y_span, 0));

this->mesh.addTexCoord(glm::vec3(i * x_span * 0.5, this->cap_size.height - i * y_span - y_span, 0));

this->mesh.addTexCoord(glm::vec3(this->cap_size.width - i * x_span * 0.5, this->cap_size.height - i * y_span - y_span, 0));

this->mesh.addTexCoord(glm::vec3(this->cap_size.width - i * x_span * 0.5, this->cap_size.height - i * y_span, 0));

this->mesh.addTexCoord(glm::vec3(i * x_span * 0.5, this->cap_size.height - i * y_span, 0));

this->mesh.addIndex(index + 0); this->mesh.addIndex(index + 1); this->mesh.addIndex(index + 2);

this->mesh.addIndex(index + 0); this->mesh.addIndex(index + 2); this->mesh.addIndex(index + 3);

// 右

x = this->cap_size.width * 0.5 - i * x_span * 0.5 - x_span * 0.5;

y = this->cap_size.height * -0.5 + i * y_span;

index = this->mesh.getNumVertices();

this->mesh.addVertex(glm::vec3(x, y + y_span, 0));

this->mesh.addVertex(glm::vec3(x + x_span * 0.5, y + y_span, 0));

this->mesh.addVertex(glm::vec3(x + x_span * 0.5, y * -1 - y_span, 0));

this->mesh.addVertex(glm::vec3(x, y * -1 - y_span, 0));

this->mesh.addTexCoord(glm::vec3(this->cap_size.width - i * x_span * 0.5 - x_span * 0.5, i * y_span + y_span, 0));

this->mesh.addTexCoord(glm::vec3(this->cap_size.width - i * x_span * 0.5, i * y_span + y_span, 0));

this->mesh.addTexCoord(glm::vec3(this->cap_size.width - i * x_span * 0.5, this->cap_size.height - i * y_span - y_span, 0));

this->mesh.addTexCoord(glm::vec3(this->cap_size.width - i * x_span * 0.5 - x_span * 0.5, this->cap_size.height - i * y_span - y_span, 0));

this->mesh.addIndex(index + 0); this->mesh.addIndex(index + 1); this->mesh.addIndex(index + 2);

this->mesh.addIndex(index + 0); this->mesh.addIndex(index + 2); this->mesh.addIndex(index + 3);

for (int k = start_index; k < this->mesh.getNumVertices(); k++) {

auto angle_x = ofMap(ofNoise(noise_seed.x, i * 0.085 + ofGetFrameNum() * 0.005), 0, 1, -PI, PI);

auto angle_y = ofMap(ofNoise(noise_seed.y, i * 0.085 + ofGetFrameNum() * 0.005), 0, 1, -PI, PI);

auto angle_z = ofMap(ofNoise(noise_seed.z, i * 0.085 + ofGetFrameNum() * 0.005), 0, 1, -PI, PI);

auto rotation_x = glm::rotate(glm::mat4(), angle_x, glm::vec3(1, 0, 0));

auto rotation_y = glm::rotate(glm::mat4(), angle_y, glm::vec3(0, 1, 0));

auto rotation_z = glm::rotate(glm::mat4(), angle_z, glm::vec3(0, 0, 1));

glm::vec3 vertex = glm::vec4(this->mesh.getVertex(k), 0) * rotation_y * rotation_x;

vertex += base_location;

this->mesh.setVertex(k, vertex);

}

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

void ofApp::draw() {

this->cam.begin();

ofRotateX(180);

ofSetColor(255);

this->image.bind();

this->mesh.draw();

this->image.unbind();

this->cam.end();

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

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日: 2020年8月24日

My post & Split & Rotate. Draw by openFrameworks

2020年8月
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