junkiyoshi – ページ 430 – プログラミング de 落描き

2020年10月25日2020年10月25日

Outline of a character. Draw by openFrameworks

[ Video ]

[ About ]
文字の輪郭。

Outline of a character.

[ 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) {};

	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) {};

ofTrueTypeFont font;

};

#include "ofApp.h"

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

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

	ofBackground(239);
	ofSetColor(39);
	ofSetLineWidth(2);

	this->font.loadFont("fonts/Kazesawa-Bold.ttf", 280, true, true, true);
}

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

	ofSeedRandom(39);
}

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

	vector<string> word_list = {
		"XYZ"
	};

	vector<glm::vec2> base_location_list = {
		glm::vec2(ofGetWidth() * 0.5 - this->font.stringWidth(word_list[0]) * 0.5, ofGetHeight() * 0.5 + this->font.stringHeight(word_list[0]) * 0.5)
	};

	for (int i = 0; i < word_list.size(); i++) {

		auto word = word_list[i];
		auto base_location = base_location_list[i];

		int sample_count = 180;
		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();
				for (int k = 0; k < 100; k++) {

					auto index_start = (int)ofRandom(vertices.size());
					auto speed = ofRandom(0.25, 0.8);
					auto noise_seed = glm::vec2(ofRandom(1000), ofRandom(1000));

					ofNoFill();
					ofBeginShape();
					for (int m = 0; m < 8; m++) {

						int index = (int)(index_start + (ofGetFrameNum() + m) * speed) % vertices.size();
						auto noise_location = glm::vec2(ofMap(ofNoise(noise_seed.x, (ofGetFrameNum() + m) * 0.03), 0, 1, -15, 15), ofMap(ofNoise(noise_seed.y, (ofGetFrameNum() + m) * 0.03), 0, 1, -15, 15));
	
						ofVertex(vertices[index] + base_location + noise_location);

						if (m == 7) { 
						
							ofFill();
							ofDrawCircle(vertices[index] + base_location + noise_location, 3);
							ofNoFill();
						}
					}
					ofEndShape();
				}
			}
		}
	}
}

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

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

#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(60);

ofSetWindowTitle("openFrameworks");

ofBackground(239);

ofSetColor(39);

ofSetLineWidth(2);

this->font.loadFont("fonts/Kazesawa-Bold.ttf", 280, true, true, true);

}

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

void ofApp::update() {

ofSeedRandom(39);

}

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

void ofApp::draw() {

vector<string> word_list = {

"XYZ"

};

vector<glm::vec2> base_location_list = {

glm::vec2(ofGetWidth() * 0.5 - this->font.stringWidth(word_list[0]) * 0.5, ofGetHeight() * 0.5 + this->font.stringHeight(word_list[0]) * 0.5)

};

for (int i = 0; i < word_list.size(); i++) {

auto word = word_list[i];

auto base_location = base_location_list[i];

int sample_count = 180;

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();

for (int k = 0; k < 100; k++) {

auto index_start = (int)ofRandom(vertices.size());

auto speed = ofRandom(0.25, 0.8);

auto noise_seed = glm::vec2(ofRandom(1000), ofRandom(1000));

ofNoFill();

ofBeginShape();

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

int index = (int)(index_start + (ofGetFrameNum() + m) * speed) % vertices.size();

auto noise_location = glm::vec2(ofMap(ofNoise(noise_seed.x, (ofGetFrameNum() + m) * 0.03), 0, 1, -15, 15), ofMap(ofNoise(noise_seed.y, (ofGetFrameNum() + m) * 0.03), 0, 1, -15, 15));

ofVertex(vertices[index] + base_location + noise_location);

if (m == 7) {

ofFill();

ofDrawCircle(vertices[index] + base_location + noise_location, 3);

ofNoFill();

}

ofEndShape();

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20201025

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2020年10月24日

Line generator. Draw by openFrameworks

[ Video ]

[ About ]
ラインジェネレーター。

Line generator.

[ 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;

	vector<glm::vec3> noise_seed_list;

	vector<glm::vec3> location_list;
	vector<glm::vec3> velocity_list;
	vector<vector<glm::vec3>> log_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;

vector<glm::vec3> noise_seed_list;

vector<glm::vec3> location_list;

vector<glm::vec3> velocity_list;

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

};

#include "ofApp.h"

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

	ofSetFrameRate(60);
	ofSetWindowTitle("openframeworks");

	ofBackground(0);
	ofSetColor(255);
	ofSetLineWidth(0.5);
	ofEnableDepthTest();

	for (int i = 0; i < 5; i++) {
		
		this->noise_seed_list.push_back(glm::vec3(ofRandom(1000), ofRandom(1000), ofRandom(1000)));
	}
}

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

	for (auto& noise_seed : this->noise_seed_list) {

		auto location = glm::vec3(
			ofMap(ofNoise(noise_seed.x, ofGetFrameNum() * 0.003), 0, 1, -300, 300),
			ofMap(ofNoise(noise_seed.y, ofGetFrameNum() * 0.003), 0, 1, -300, 300),
			ofMap(ofNoise(noise_seed.z, ofGetFrameNum() * 0.003), 0, 1, -300, 300)
		);

		auto next = glm::vec3(
			ofMap(ofNoise(noise_seed.x, (ofGetFrameNum() + 1) * 0.003), 0, 1, -300, 300),
			ofMap(ofNoise(noise_seed.y, (ofGetFrameNum() + 1) * 0.003), 0, 1, -300, 300),
			ofMap(ofNoise(noise_seed.z, (ofGetFrameNum() + 1) * 0.003), 0, 1, -300, 300)
		);
		auto distance = location - next;
		distance *= 2;

		auto future = location + distance * 30;
		auto random_deg_1 = ofRandom(360);
		auto random_deg_2 = ofRandom(360);
		future += glm::vec3(
			30 * cos(random_deg_1 * DEG_TO_RAD) * sin(random_deg_2 * DEG_TO_RAD),
			30 * sin(random_deg_1 * DEG_TO_RAD) * sin(random_deg_2 * DEG_TO_RAD),
			30 * cos(random_deg_2 * DEG_TO_RAD)
		);

		auto future_distance = future - location;

		this->location_list.push_back(location);
		this->velocity_list.push_back(glm::normalize(future_distance) * glm::length(distance));
		vector<glm::vec3> log;
		this->log_list.push_back(log);
	}

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

		auto tmp = this->location_list[i] + this->velocity_list[i];
		this->location_list[i] = tmp;
		this->velocity_list[i] *= 1.01;
		this->log_list[i].push_back(tmp);

		if (glm::length(this->location_list[i]) > 720) {

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

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

	this->cam.begin();
	ofRotateY(ofGetFrameNum() * 0.5);

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

		for (int k = 0; k < this->log_list[i].size() - 1; k++) {

			ofDrawLine(this->log_list[i][k], this->log_list[i][k + 1]);
		}
	}

	this->cam.end();
}

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

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

#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(60);

ofSetWindowTitle("openframeworks");

ofBackground(0);

ofSetColor(255);

ofSetLineWidth(0.5);

ofEnableDepthTest();

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

this->noise_seed_list.push_back(glm::vec3(ofRandom(1000), ofRandom(1000), ofRandom(1000)));

}

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

void ofApp::update() {

for (auto& noise_seed : this->noise_seed_list) {

auto location = glm::vec3(

ofMap(ofNoise(noise_seed.x, ofGetFrameNum() * 0.003), 0, 1, -300, 300),

ofMap(ofNoise(noise_seed.y, ofGetFrameNum() * 0.003), 0, 1, -300, 300),

ofMap(ofNoise(noise_seed.z, ofGetFrameNum() * 0.003), 0, 1, -300, 300)

);

auto next = glm::vec3(

ofMap(ofNoise(noise_seed.x, (ofGetFrameNum() + 1) * 0.003), 0, 1, -300, 300),

ofMap(ofNoise(noise_seed.y, (ofGetFrameNum() + 1) * 0.003), 0, 1, -300, 300),

ofMap(ofNoise(noise_seed.z, (ofGetFrameNum() + 1) * 0.003), 0, 1, -300, 300)

);

auto distance = location - next;

distance *= 2;

auto future = location + distance * 30;

auto random_deg_1 = ofRandom(360);

auto random_deg_2 = ofRandom(360);

future += glm::vec3(

30 * cos(random_deg_1 * DEG_TO_RAD) * sin(random_deg_2 * DEG_TO_RAD),

30 * sin(random_deg_1 * DEG_TO_RAD) * sin(random_deg_2 * DEG_TO_RAD),

30 * cos(random_deg_2 * DEG_TO_RAD)

);

auto future_distance = future - location;

this->location_list.push_back(location);

this->velocity_list.push_back(glm::normalize(future_distance) * glm::length(distance));

vector<glm::vec3> log;

this->log_list.push_back(log);

}

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

auto tmp = this->location_list[i] + this->velocity_list[i];

this->location_list[i] = tmp;

this->velocity_list[i] *= 1.01;

this->log_list[i].push_back(tmp);

if (glm::length(this->location_list[i]) > 720) {

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

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

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

}

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

void ofApp::draw() {

this->cam.begin();

ofRotateY(ofGetFrameNum() * 0.5);

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

for (int k = 0; k < this->log_list[i].size() - 1; k++) {

ofDrawLine(this->log_list[i][k], this->log_list[i][k + 1]);

}

this->cam.end();

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20201024

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Amazon

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2020年10月23日2020年10月23日

Changing interval of noise param. Draw by openFrameworks

[ Video ]

[ About ]
ノイズの間隔を変化。

Changing interval of noise param.

[ 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;
};

#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;

};

#include "ofApp.h"

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

	ofSetFrameRate(60);
	ofSetWindowTitle("openframeworks");

	ofBackground(239);
	ofSetColor(39);
	ofEnableDepthTest();
}

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

	ofSeedRandom(39);
}

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

	this->cam.begin();
	ofRotateX(300);
	ofRotateZ(ofGetFrameNum() * 0.25);

	float deg_span = 0.1;
	float noise_span = ofMap(ofNoise(ofRandom(1000), ofGetFrameNum() * 0.005), 0, 1, 0.001, 0.025);
	for (float radius = 50; radius <= 200; radius += 50) {

		ofMesh face, frame;
		frame.setMode(ofPrimitiveMode::OF_PRIMITIVE_LINES);
		for (float deg = 0; deg < 360; deg += deg_span) {

			int index = face.getNumVertices() - 2;

			auto location = glm::vec2(radius * cos(deg * DEG_TO_RAD), radius * sin(deg * DEG_TO_RAD));
			auto noise_value = ofNoise(glm::vec3(location * noise_span, ofGetFrameNum() * 0.0001));
			float z = noise_value < 0.45 ? 1 : ofMap(noise_value, 0.45, 1.0, 0, 80);

			face.addVertex(glm::vec3(location, -z));
			face.addVertex(glm::vec3(location, z));

			frame.addVertex(glm::vec3(location, -z));
			frame.addVertex(glm::vec3(location, z));

			if (index > -1) {

				face.addIndex(index); face.addIndex(index + 1); face.addIndex(index + 3);
				face.addIndex(index); face.addIndex(index + 2); face.addIndex(index + 3);

				frame.addIndex(index); frame.addIndex(index + 2);
				frame.addIndex(index + 1); frame.addIndex(index + 3);
			}
		}

		ofSetColor(39);
		face.draw();

		ofSetColor(239);
		frame.drawWireframe();
	}


	this->cam.end();
}

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

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

#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(60);

ofSetWindowTitle("openframeworks");

ofBackground(239);

ofSetColor(39);

ofEnableDepthTest();

}

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

void ofApp::update() {

ofSeedRandom(39);

}

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

void ofApp::draw() {

this->cam.begin();

ofRotateX(300);

ofRotateZ(ofGetFrameNum() * 0.25);

float deg_span = 0.1;

float noise_span = ofMap(ofNoise(ofRandom(1000), ofGetFrameNum() * 0.005), 0, 1, 0.001, 0.025);

for (float radius = 50; radius <= 200; radius += 50) {

ofMesh face, frame;

frame.setMode(ofPrimitiveMode::OF_PRIMITIVE_LINES);

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

int index = face.getNumVertices() - 2;

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

auto noise_value = ofNoise(glm::vec3(location * noise_span, ofGetFrameNum() * 0.0001));

float z = noise_value < 0.45 ? 1 : ofMap(noise_value, 0.45, 1.0, 0, 80);

face.addVertex(glm::vec3(location, -z));

face.addVertex(glm::vec3(location, z));

frame.addVertex(glm::vec3(location, -z));

frame.addVertex(glm::vec3(location, z));

if (index > -1) {

face.addIndex(index); face.addIndex(index + 1); face.addIndex(index + 3);

face.addIndex(index); face.addIndex(index + 2); face.addIndex(index + 3);

frame.addIndex(index); frame.addIndex(index + 2);

frame.addIndex(index + 1); frame.addIndex(index + 3);

}

ofSetColor(39);

face.draw();

ofSetColor(239);

frame.drawWireframe();

}

this->cam.end();

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20201023

[ほしいものリスト]
Amazon

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