openFrameworks – ページ 519 – プログラミング de 落描き

2021年6月23日2021年6月23日

Image gap change to height. Draw by openFrameworks

[ Video ]

[ About ]
OpenCVで映像の差分を計算する。
差があった部分だけBoxの高さを長くする。

Calculate the differences in the video using OpenCV.
Increase the height of the box only where there is a difference.

[ 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<float> draw_rect_size_list;
	vector<cv::Mat> rect_frame_list;
	vector<unique_ptr<ofImage>> rect_image_list;
	vector<cv::Rect> cv_rect_list;
};

#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<float> draw_rect_size_list;

vector<cv::Mat> rect_frame_list;

vector<unique_ptr<ofImage>> rect_image_list;

vector<cv::Rect> cv_rect_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 = 10;
	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);
			this->draw_rect_size_list.push_back(this->rect_size);
		}
	}

	auto file_path = "D:\\MP4\\Pexels Videos 2880.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);
	}
}

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

	int frame_index = (int)(ofGetFrameNum() * 0.42) % this->number_of_frames;
	int next_frame_index = (frame_index + 1) % this->number_of_frames;

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

		this->draw_rect_size_list[i] = this->draw_rect_size_list[i] <= 0 ? 0 : this->draw_rect_size_list[i] - 0.5;
	}

	if (frame_index < next_frame_index) {

		cv::Mat gap = this->frame_list[frame_index] - this->frame_list[next_frame_index];

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

			int x = this->cv_rect_list[i].x + this->rect_size * 0.5;
			int y = this->cv_rect_list[i].y + this->rect_size * 0.5;

			cv::Vec3b* gap_value = gap.ptr<cv::Vec3b>(y, 0);
			cv::Vec3b* color_value = this->frame_list[frame_index].ptr<cv::Vec3b>(y, 0);
			cv::Vec3b gv = gap_value[x];
			cv::Vec3b cv = color_value[x];
			if ((gv[0] + gv[1] + gv[2]) > 100) {

				this->draw_rect_size_list[i] = this->draw_rect_size_list[i] <= this->rect_size ? this->rect_size : this->rect_size;
			}
		}
	}
}

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

	this->cam.begin();
	ofRotateX(180);
	ofRotateX(-45);

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

		ofPushMatrix();
		ofTranslate(this->cv_rect_list[i].x + 50 - ofGetWidth() * 0.5, this->cv_rect_list[i].y + 180 - ofGetHeight() * 0.5, -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]);

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

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

			auto height = this->draw_rect_size_list[i] * 5;

			ofSetColor(255);
			ofFill();
			ofDrawBox(glm::vec3(0, 0, height * 0.5), this->rect_size, this->rect_size, height);
			this->rect_image_list[i]->unbind();

			ofSetColor(39);
			ofNoFill();
			ofSetLineWidth(2);
			ofDrawBox(glm::vec3(0, 0, height * 0.5), this->rect_size, this->rect_size, height);
		}
		else {

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

			ofSetColor(128);
			ofFill();
			ofDrawBox(glm::vec3(), this->rect_size);
			this->rect_image_list[i]->unbind();

			ofSetColor(239);
			ofNoFill();
			ofSetLineWidth(1);
			ofDrawBox(glm::vec3(), this->rect_size);
		}

		ofPopMatrix();
	}

	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(640, 360);

this->rect_size = 10;

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);

this->draw_rect_size_list.push_back(this->rect_size);

}

auto file_path = "D:\\MP4\\Pexels Videos 2880.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);

}

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

void ofApp::update() {

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

int next_frame_index = (frame_index + 1) % this->number_of_frames;

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

this->draw_rect_size_list[i] = this->draw_rect_size_list[i] <= 0 ? 0 : this->draw_rect_size_list[i] - 0.5;

}

if (frame_index < next_frame_index) {

cv::Mat gap = this->frame_list[frame_index] - this->frame_list[next_frame_index];

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

int x = this->cv_rect_list[i].x + this->rect_size * 0.5;

int y = this->cv_rect_list[i].y + this->rect_size * 0.5;

cv::Vec3b* gap_value = gap.ptr<cv::Vec3b>(y, 0);

cv::Vec3b* color_value = this->frame_list[frame_index].ptr<cv::Vec3b>(y, 0);

cv::Vec3b gv = gap_value[x];

cv::Vec3b cv = color_value[x];

if ((gv[0] + gv[1] + gv[2]) > 100) {

this->draw_rect_size_list[i] = this->draw_rect_size_list[i] <= this->rect_size ? this->rect_size : this->rect_size;

}

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

void ofApp::draw() {

this->cam.begin();

ofRotateX(180);

ofRotateX(-45);

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

ofPushMatrix();

ofTranslate(this->cv_rect_list[i].x + 50 - ofGetWidth() * 0.5, this->cv_rect_list[i].y + 180 - ofGetHeight() * 0.5, -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]);

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

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

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

auto height = this->draw_rect_size_list[i] * 5;

ofSetColor(255);

ofFill();

ofDrawBox(glm::vec3(0, 0, height * 0.5), this->rect_size, this->rect_size, height);

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

ofSetColor(39);

ofNoFill();

ofSetLineWidth(2);

ofDrawBox(glm::vec3(0, 0, height * 0.5), this->rect_size, this->rect_size, height);

}

else {

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

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

ofSetColor(128);

ofFill();

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

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

ofSetColor(239);

ofNoFill();

ofSetLineWidth(1);

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

}

ofPopMatrix();

}

this->cam.end();

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20210623

2021年6月22日2021年6月22日

Sphere by characters. Draw by openFrameworks

[ Video ]

[ About ]
ofTrueTypeFont.getStringAsPoints()で取得した座標を回転させて、球体上で描写する。

The coordinates obtained with ofTrueTypeFont.getStringAsPoints() are rotated and depicted on the 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) {};

	ofEasyCam cam;

	float font_size;
	ofTrueTypeFont font;

	vector<string> word_list;
	vector<vector<vector<glm::vec3>>> word_vertices_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) {};

ofEasyCam cam;

float font_size;

ofTrueTypeFont font;

vector<string> word_list;

vector<vector<vector<glm::vec3>>> word_vertices_list;

};

#include "ofApp.h"

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

	ofSetFrameRate(30);
	ofSetWindowTitle("openframeworks");

	ofBackground(239);
	ofSetLineWidth(3);
	ofEnableDepthTest();

	this->font_size = 25;
	this->font.loadFont("fonts/Kazesawa-Bold.ttf", this->font_size, true, true, true);

	this->word_list = {
	"A", "B", "C", "D", "E", "F",
	"G", "H", "I", "J", "K", "L",
	"M", "N", "O", "P", "Q", "R",
	"S", "T", "U", "V", "V", "X",
	"Y", "Z" };

	int sample_count = 39;

	for (auto& word : this->word_list) {

		vector<vector<glm::vec3>> vertices_list;
		vector<ofPath> word_path = this->font.getStringAsPoints(word, true, false);

		for (int word_index = 0; word_index < word_path.size(); word_index++) {

			vector<ofPolyline> outline = word_path[word_index].getOutline();

			for (int outline_index = 0; outline_index < outline.size(); outline_index++) {

				auto vertices = outline[outline_index].getResampledByCount(sample_count).getVertices();
				vertices_list.push_back(vertices);
			}
		}

		this->word_vertices_list.push_back(vertices_list);
	}
}

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

	ofSeedRandom(39);
}

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

	this->cam.begin();

	ofColor color;
	for (int i = 0; i < 256 * 3; i++) {

		auto word_index = i % this->word_list.size();
		auto noise_param = glm::vec3(ofRandom(1000), ofRandom(1000), ofRandom(1000));
		auto word_size = this->font.getStringBoundingBox(this->word_list[word_index], 0, 0);
		auto radius = ofRandom(90, 110);
		color.setHsb(i % 256, 180, 255);

		for (int k = 0; k < 2; k++) {

			if (k == 0) {

				ofFill();
				ofSetColor(color);
			}
			else {

				ofNoFill();
				ofSetColor(39);
			}

			ofBeginShape();
			for (int vertices_index = 0; vertices_index < this->word_vertices_list[word_index].size(); vertices_index++) {

				if (vertices_index != 0) { ofNextContour(true); }

				auto vertices = this->word_vertices_list[word_index][vertices_index];
				for (auto& vertex : vertices) {

					auto rotation_x = glm::rotate(glm::mat4(), ofMap(ofNoise(noise_param.x, vertex.x * 0.0001, ofGetFrameNum() * 0.0015), 0, 1, -PI * 2, PI * 2), glm::vec3(1, 0, 0));
					auto rotation_y = glm::rotate(glm::mat4(), ofMap(ofNoise(noise_param.y, vertex.y * 0.0001, ofGetFrameNum() * 0.0015), 0, 1, -PI * 2, PI * 2), glm::vec3(0, 1, 0));
					auto rotation_z = glm::rotate(glm::mat4(), ofMap(ofNoise(noise_param.z, vertex.z * 0.0001, ofGetFrameNum() * 0.0015), 0, 1, -PI * 2, PI * 2), glm::vec3(0, 0, 1));

					glm::vec3 location = glm::vec4(glm::vec3(vertex - glm::vec3(word_size.getWidth() * 0.5, -word_size.getHeight() * 0.5, radius)), 0) * rotation_z * rotation_y *  rotation_x;
					ofVertex(location);
				}
			}
			ofEndShape(true);
		}
	}

	this->cam.end();
}

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

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

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#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(30);

ofSetWindowTitle("openframeworks");

ofBackground(239);

ofSetLineWidth(3);

ofEnableDepthTest();

this->font_size = 25;

this->font.loadFont("fonts/Kazesawa-Bold.ttf", this->font_size, true, true, true);

this->word_list = {

"A", "B", "C", "D", "E", "F",

"G", "H", "I", "J", "K", "L",

"M", "N", "O", "P", "Q", "R",

"S", "T", "U", "V", "V", "X",

"Y", "Z" };

int sample_count = 39;

for (auto& word : this->word_list) {

vector<vector<glm::vec3>> vertices_list;

vector<ofPath> word_path = this->font.getStringAsPoints(word, true, false);

for (int word_index = 0; word_index < word_path.size(); word_index++) {

vector<ofPolyline> outline = word_path[word_index].getOutline();

for (int outline_index = 0; outline_index < outline.size(); outline_index++) {

auto vertices = outline[outline_index].getResampledByCount(sample_count).getVertices();

vertices_list.push_back(vertices);

}

this->word_vertices_list.push_back(vertices_list);

}

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

void ofApp::update() {

ofSeedRandom(39);

}

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

void ofApp::draw() {

this->cam.begin();

ofColor color;

for (int i = 0; i < 256 * 3; i++) {

auto word_index = i % this->word_list.size();

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

auto word_size = this->font.getStringBoundingBox(this->word_list[word_index], 0, 0);

auto radius = ofRandom(90, 110);

color.setHsb(i % 256, 180, 255);

for (int k = 0; k < 2; k++) {

if (k == 0) {

ofFill();

ofSetColor(color);

}

else {

ofNoFill();

ofSetColor(39);

}

ofBeginShape();

for (int vertices_index = 0; vertices_index < this->word_vertices_list[word_index].size(); vertices_index++) {

if (vertices_index != 0) { ofNextContour(true); }

auto vertices = this->word_vertices_list[word_index][vertices_index];

for (auto& vertex : vertices) {

auto rotation_x = glm::rotate(glm::mat4(), ofMap(ofNoise(noise_param.x, vertex.x * 0.0001, ofGetFrameNum() * 0.0015), 0, 1, -PI * 2, PI * 2), glm::vec3(1, 0, 0));

auto rotation_y = glm::rotate(glm::mat4(), ofMap(ofNoise(noise_param.y, vertex.y * 0.0001, ofGetFrameNum() * 0.0015), 0, 1, -PI * 2, PI * 2), glm::vec3(0, 1, 0));

auto rotation_z = glm::rotate(glm::mat4(), ofMap(ofNoise(noise_param.z, vertex.z * 0.0001, ofGetFrameNum() * 0.0015), 0, 1, -PI * 2, PI * 2), glm::vec3(0, 0, 1));

glm::vec3 location = glm::vec4(glm::vec3(vertex - glm::vec3(word_size.getWidth() * 0.5, -word_size.getHeight() * 0.5, radius)), 0) * rotation_z * rotation_y * rotation_x;

ofVertex(location);

}

ofEndShape(true);

}

this->cam.end();

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20210622

[ Kinako ]

2021年6月21日2021年6月21日

Convert angles to colors. Draw by openFrameworks

[ Video ]

[ About ]
Color only the area to be rotated using ofMesh.addColor().

回転させる面にofMesh.addColor()で色付け。

[ 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) {};

	ofEasyCam cam;
	ofTrueTypeFont font;
};

#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) {};

ofEasyCam cam;

ofTrueTypeFont font;

};

#include "ofApp.h"

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

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

	ofBackground(0);
	ofSetLineWidth(2);
	ofEnableDepthTest();

	this->font.loadFont("fonts/Kazesawa-Bold.ttf", 50, true, true, true);
}

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

	ofSeedRandom(39);
}

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

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

	vector<string> word_list = {
		"0", "1", "2", "3",
		"6", "5", "4",
		"7", "8", "9", "0"
	};

	for (int x = -180; x <= 180; x += 60) {

		for (int y = -180; y <= 180; y += 60) {

			int word_index = ofMap(ofNoise(ofRandom(1000), ofGetFrameNum() * 0.003), 0, 1, 0, word_list.size());
			auto word = word_list[word_index];

			int sample_count = 120;
			vector<ofPath> word_path = this->font.getStringAsPoints(word, true, false);
			for (int word_index = 0; word_index < word_path.size(); word_index++) {

				vector<ofPolyline> outline = word_path[word_index].getOutline();
				for (int outline_index = 0; outline_index < outline.size(); outline_index++) {

					outline[outline_index] = outline[outline_index].getResampledByCount(sample_count);
					vector<glm::vec3> vertices = outline[outline_index].getVertices();
					vector<glm::vec2> mesh_vertices;
					vector<glm::vec3> base_location_list;
					vector<float> rad_list;

					for (int vertices_index = 0; vertices_index < vertices.size(); vertices_index++) {

						auto base_location = glm::vec3(x, y, 0);
						base_location += glm::vec3(this->font.stringWidth(word_list[word_index]) * 0.5, this->font.stringHeight(word_list[word_index]) * 0.5, 0);

						auto noise_value = ofNoise(
							x * 0.005 + vertices[vertices_index].x * 0.001,
							(y + vertices[vertices_index].y) * 0.001 + ofGetFrameNum() * 0.006);
						float param = 0.5;
						if (noise_value < 0.3) { param = ofMap(noise_value, 0, 0.3, 0, 0.5); }
						if (noise_value > 0.7) { param = ofMap(noise_value, 0.7, 1, 0.5, 1); }

						auto rad = ofMap(param, 0, 1, -PI * 3, PI * 3);
						auto location = vertices[vertices_index] - glm::vec2(this->font.stringWidth(word_list[word_index]) * 0.5, this->font.stringHeight(word_list[word_index]) * 0.5);

						mesh_vertices.push_back(location);
						rad_list.push_back(rad);
						base_location_list.push_back(base_location);
					}

					ofMesh face, line;
					ofColor face_color, line_color;
					line.setMode(ofPrimitiveMode::OF_PRIMITIVE_LINES);
					for (int k = 0; k < mesh_vertices.size(); k++) {

						auto rotate = glm::rotate(glm::mat4(), rad_list[k], glm::vec3(0, 1, 0));

						if (rad_list[k] != 0) {

							face_color.setHsb(ofMap(rad_list[k], -PI * 3, PI * 3, 0, 255), 255, 255);
							line_color = ofColor(239);
						}
						else {

							face_color = ofColor(239, 128);
							line_color = ofColor(239);
						}

						face.addVertex(glm::vec4(base_location_list[k], 0) + glm::vec4(mesh_vertices[k], -5, 0) * rotate);
						face.addVertex(glm::vec4(base_location_list[k], 0) + glm::vec4(mesh_vertices[k], 5, 0) * rotate);

						face.addColor(ofColor(face_color, 128));
						face.addColor(ofColor(face_color, 128));

						line.addVertex(glm::vec4(base_location_list[k], 0) + glm::vec4(mesh_vertices[k], -5, 0) * rotate);
						line.addVertex(glm::vec4(base_location_list[k], 0) + glm::vec4(mesh_vertices[k], 5, 0) * rotate);

						line.addColor(face_color);
						line.addColor(face_color);

						if (k > 0) {

							face.addIndex(face.getNumVertices() - 1); face.addIndex(face.getNumVertices() - 2); face.addIndex(face.getNumVertices() - 4);
							face.addIndex(face.getNumVertices() - 1); face.addIndex(face.getNumVertices() - 3); face.addIndex(face.getNumVertices() - 4);

							line.addIndex(line.getNumVertices() - 1); line.addIndex(line.getNumVertices() - 3);
							line.addIndex(line.getNumVertices() - 2); line.addIndex(line.getNumVertices() - 4);
						}
					}

					face.addIndex(face.getNumVertices() - 1); face.addIndex(0); face.addIndex(1);
					face.addIndex(face.getNumVertices() - 1); face.addIndex(face.getNumVertices() - 2); face.addIndex(2);

					line.addIndex(line.getNumVertices() - 1); line.addIndex(1);
					line.addIndex(line.getNumVertices() - 2); line.addIndex(0);

					face.draw();
					line.drawWireframe();
				}
			}
		}
	}

	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);

ofSetLineWidth(2);

ofEnableDepthTest();

this->font.loadFont("fonts/Kazesawa-Bold.ttf", 50, true, true, true);

}

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

void ofApp::update() {

ofSeedRandom(39);

}

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

void ofApp::draw() {

this->cam.begin();

ofRotateX(180);

vector<string> word_list = {

"0", "1", "2", "3",

"6", "5", "4",

"7", "8", "9", "0"

};

for (int x = -180; x <= 180; x += 60) {

for (int y = -180; y <= 180; y += 60) {

int word_index = ofMap(ofNoise(ofRandom(1000), ofGetFrameNum() * 0.003), 0, 1, 0, word_list.size());

auto word = word_list[word_index];

int sample_count = 120;

vector<ofPath> word_path = this->font.getStringAsPoints(word, true, false);

for (int word_index = 0; word_index < word_path.size(); word_index++) {

vector<ofPolyline> outline = word_path[word_index].getOutline();

for (int outline_index = 0; outline_index < outline.size(); outline_index++) {

outline[outline_index] = outline[outline_index].getResampledByCount(sample_count);

vector<glm::vec3> vertices = outline[outline_index].getVertices();

vector<glm::vec2> mesh_vertices;

vector<glm::vec3> base_location_list;

vector<float> rad_list;

for (int vertices_index = 0; vertices_index < vertices.size(); vertices_index++) {

auto base_location = glm::vec3(x, y, 0);

base_location += glm::vec3(this->font.stringWidth(word_list[word_index]) * 0.5, this->font.stringHeight(word_list[word_index]) * 0.5, 0);

auto noise_value = ofNoise(

x * 0.005 + vertices[vertices_index].x * 0.001,

(y + vertices[vertices_index].y) * 0.001 + ofGetFrameNum() * 0.006);

float param = 0.5;

if (noise_value < 0.3) { param = ofMap(noise_value, 0, 0.3, 0, 0.5); }

if (noise_value > 0.7) { param = ofMap(noise_value, 0.7, 1, 0.5, 1); }

auto rad = ofMap(param, 0, 1, -PI * 3, PI * 3);

auto location = vertices[vertices_index] - glm::vec2(this->font.stringWidth(word_list[word_index]) * 0.5, this->font.stringHeight(word_list[word_index]) * 0.5);

mesh_vertices.push_back(location);

rad_list.push_back(rad);

base_location_list.push_back(base_location);

}

ofMesh face, line;

ofColor face_color, line_color;

line.setMode(ofPrimitiveMode::OF_PRIMITIVE_LINES);

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

auto rotate = glm::rotate(glm::mat4(), rad_list[k], glm::vec3(0, 1, 0));

if (rad_list[k] != 0) {

face_color.setHsb(ofMap(rad_list[k], -PI * 3, PI * 3, 0, 255), 255, 255);

line_color = ofColor(239);

}

else {

face_color = ofColor(239, 128);

line_color = ofColor(239);

}

face.addVertex(glm::vec4(base_location_list[k], 0) + glm::vec4(mesh_vertices[k], -5, 0) * rotate);

face.addVertex(glm::vec4(base_location_list[k], 0) + glm::vec4(mesh_vertices[k], 5, 0) * rotate);

face.addColor(ofColor(face_color, 128));

line.addVertex(glm::vec4(base_location_list[k], 0) + glm::vec4(mesh_vertices[k], -5, 0) * rotate);

line.addVertex(glm::vec4(base_location_list[k], 0) + glm::vec4(mesh_vertices[k], 5, 0) * rotate);

line.addColor(face_color);

if (k > 0) {

face.addIndex(face.getNumVertices() - 1); face.addIndex(face.getNumVertices() - 2); face.addIndex(face.getNumVertices() - 4);

face.addIndex(face.getNumVertices() - 1); face.addIndex(face.getNumVertices() - 3); face.addIndex(face.getNumVertices() - 4);

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

line.addIndex(line.getNumVertices() - 2); line.addIndex(line.getNumVertices() - 4);

}

face.addIndex(face.getNumVertices() - 1); face.addIndex(0); face.addIndex(1);

face.addIndex(face.getNumVertices() - 1); face.addIndex(face.getNumVertices() - 2); face.addIndex(2);

line.addIndex(line.getNumVertices() - 1); line.addIndex(1);

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

face.draw();

line.drawWireframe();

}

this->cam.end();

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20210621

[ Kinako ]

2025年9月
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