2022年12月 – ページ 3 – プログラミング de 落描き

2022年12月25日

2022 Xmas. Draw by openFrameworks

[ Video ]

[ About ]
2022 Happy X’mas.

[ 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;
	ofMesh mesh;

	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) {};

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

ofEasyCam cam;

ofMesh mesh;

ofTrueTypeFont font;

};

#include "ofApp.h"

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

	ofSetFrameRate(30);
	ofSetWindowTitle("openFrameworks");

	ofBackground(0);
	ofSetLineWidth(1.2);
	ofEnableDepthTest();
	ofEnableBlendMode(ofBlendMode::OF_BLENDMODE_ADD);

	this->mesh.setMode(ofPrimitiveMode::OF_PRIMITIVE_LINES);
	this->font.loadFont("fonts/Kazesawa-Bold.ttf", 100, true, true, true);
}

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

	ofSeedRandom(39);

	vector<float> min_distance_list;
	this->mesh.clear();

	for (int i = 0; i < 1800; i++) {

		auto vertex = glm::vec3(
			ofRandom(-200, 200) + ofMap(ofNoise(ofRandom(1000), ofGetFrameNum() * 0.001), 0, 1, -20, 20),
			(int)(ofRandom(400) + ofGetFrameNum() * ofRandom(1, 3)) % 400 - 200,
			ofRandom(-200, 200) + ofMap(ofNoise(ofRandom(1000), ofGetFrameNum() * 0.001), 0, 1, -20, 20)
		);

		this->mesh.addVertex(vertex);
		min_distance_list.push_back(20);
	}

	string word = "Xmas";
	auto path_list = font.getStringAsPoints(word, true, false);

	for (auto path : path_list) {

		auto outline = path.getOutline();

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

			outline[outline_index] = outline[outline_index].getResampledBySpacing(15);
			auto vertices = outline[outline_index].getVertices();

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

				auto location = glm::vec3(vertices[vertices_index].x - this->font.stringWidth(word) * 0.5, vertices[vertices_index].y + this->font.stringHeight(word) * 0.5, 0);
				this->mesh.addVertex(location);
			}

		}
	}

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

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

			if (i == k) { continue; }

			auto distance = glm::distance(this->mesh.getVertex(i), this->mesh.getVertex(k));
			if (distance <= 20) {

				this->mesh.addIndex(i);
				this->mesh.addIndex(k);

				if (distance < min_distance_list[i]) {

					min_distance_list[i] = distance;
				}
			}
		}

		this->mesh.addColor(ofColor(255, ofMap(min_distance_list[i], 0, 20, 255, 0)));
	}
}

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

	this->cam.begin();
	ofRotateX(180);
	ofRotateY(10 * sin(ofGetFrameNum() * 0.035));

	this->mesh.draw();

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

		ofSetColor(this->mesh.getColor(i));
		ofDrawSphere(this->mesh.getVertex(i), 1.5);
	}

	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(30);

ofSetWindowTitle("openFrameworks");

ofBackground(0);

ofSetLineWidth(1.2);

ofEnableDepthTest();

ofEnableBlendMode(ofBlendMode::OF_BLENDMODE_ADD);

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

this->font.loadFont("fonts/Kazesawa-Bold.ttf", 100, true, true, true);

}

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

void ofApp::update() {

ofSeedRandom(39);

vector<float> min_distance_list;

this->mesh.clear();

for (int i = 0; i < 1800; i++) {

auto vertex = glm::vec3(

ofRandom(-200, 200) + ofMap(ofNoise(ofRandom(1000), ofGetFrameNum() * 0.001), 0, 1, -20, 20),

(int)(ofRandom(400) + ofGetFrameNum() * ofRandom(1, 3)) % 400 - 200,

ofRandom(-200, 200) + ofMap(ofNoise(ofRandom(1000), ofGetFrameNum() * 0.001), 0, 1, -20, 20)

);

this->mesh.addVertex(vertex);

min_distance_list.push_back(20);

}

string word = "Xmas";

auto path_list = font.getStringAsPoints(word, true, false);

for (auto path : path_list) {

auto outline = path.getOutline();

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

outline[outline_index] = outline[outline_index].getResampledBySpacing(15);

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

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

auto location = glm::vec3(vertices[vertices_index].x - this->font.stringWidth(word) * 0.5, vertices[vertices_index].y + this->font.stringHeight(word) * 0.5, 0);

this->mesh.addVertex(location);

}

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

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

if (i == k) { continue; }

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

if (distance <= 20) {

this->mesh.addIndex(i);

this->mesh.addIndex(k);

if (distance < min_distance_list[i]) {

min_distance_list[i] = distance;

}

this->mesh.addColor(ofColor(255, ofMap(min_distance_list[i], 0, 20, 255, 0)));

}

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

void ofApp::draw() {

this->cam.begin();

ofRotateX(180);

ofRotateY(10 * sin(ofGetFrameNum() * 0.035));

this->mesh.draw();

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

ofSetColor(this->mesh.getColor(i));

ofDrawSphere(this->mesh.getVertex(i), 1.5);

}

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/Insta20221225

2022年12月24日

dotted line. draw by openFrameworks

[ Video ]

[ About ]
点線。

[ 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::vec2 make_point(int len, int param);
};

#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::vec2 make_point(int len, int param);

};

#include "ofApp.h"

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

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

	ofBackground(0);
	ofSetLineWidth(3);
	ofSetCircleResolution(60);
	ofSetRectMode(ofRectMode::OF_RECTMODE_CENTER);
}

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

}

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

	ofTranslate(ofGetWindowSize() * 0.5);

	
	for (int len = 200; len <= 600; len += 50) {

		int param_start = ofMap(ofNoise(len * 0.005, ofGetFrameNum() * 0.0035), 0, 1, 0, 200);
		for (int param = param_start; param <= param_start + 80; param += 1) {

			if ((param - param_start) % 2 == 1) {

				ofDrawLine(this->make_point(len, param), this->make_point(len, param + 1));
			}
			else {

				ofDrawCircle((this->make_point(len, param) + this->make_point(len, param + 1)) / 2, 3);
			}
		}

		ofDrawCircle(this->make_point(len, param_start + 90), 6);
	}
}

//--------------------------------------------------------------
glm::vec2 ofApp::make_point(int len, int param) {

	param = param % 100;
	if (param < 25) {

		return glm::vec2(ofMap(param, 0, 25, -len * 0.5, len * 0.5), -len * 0.5);
	}
	else if (param < 50) {

		return glm::vec2(len * 0.5, ofMap(param, 25, 50, -len * 0.5, len * 0.5));
	}
	else if (param < 75) {

		return glm::vec2(ofMap(param, 50, 75, len * 0.5, -len * 0.5), len * 0.5);
	}
	else {

		return glm::vec2(-len * 0.5, ofMap(param, 75, 100, len * 0.5, -len * 0.5));
	}
}

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

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

#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(30);

ofSetWindowTitle("openframeworks");

ofBackground(0);

ofSetLineWidth(3);

ofSetCircleResolution(60);

ofSetRectMode(ofRectMode::OF_RECTMODE_CENTER);

}

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

void ofApp::update() {

}

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

void ofApp::draw() {

ofTranslate(ofGetWindowSize() * 0.5);

for (int len = 200; len <= 600; len += 50) {

int param_start = ofMap(ofNoise(len * 0.005, ofGetFrameNum() * 0.0035), 0, 1, 0, 200);

for (int param = param_start; param <= param_start + 80; param += 1) {

if ((param - param_start) % 2 == 1) {

ofDrawLine(this->make_point(len, param), this->make_point(len, param + 1));

}

else {

ofDrawCircle((this->make_point(len, param) + this->make_point(len, param + 1)) / 2, 3);

}

ofDrawCircle(this->make_point(len, param_start + 90), 6);

}

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

glm::vec2 ofApp::make_point(int len, int param) {

param = param % 100;

if (param < 25) {

return glm::vec2(ofMap(param, 0, 25, -len * 0.5, len * 0.5), -len * 0.5);

}

else if (param < 50) {

return glm::vec2(len * 0.5, ofMap(param, 25, 50, -len * 0.5, len * 0.5));

}

else if (param < 75) {

return glm::vec2(ofMap(param, 50, 75, len * 0.5, -len * 0.5), len * 0.5);

}

else {

return glm::vec2(-len * 0.5, ofMap(param, 75, 100, len * 0.5, -len * 0.5));

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20221224

2022年12月23日

falling star. draw by openFrameworks

[ Video ]

[ About ]
ひのたま。

[ 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) {};
};

#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) {};

};

#include "ofApp.h"

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

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

	ofBackground(0);
	ofSetLineWidth(3);
	ofEnableBlendMode(ofBlendMode::OF_BLENDMODE_ADD);
}

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

	ofSeedRandom(39);
}

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

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

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

	ofTranslate(ofGetWidth() * 0.5, ofGetHeight() * 0.5);

	auto noise_seed = glm::vec2(ofRandom(1000), ofRandom(1000));
	for (int k = 0; k < 18; k++) {

		ofMesh mesh;
		vector<glm::vec3> right, left, frame;

		glm::vec3 last_location;
		float last_theta;

		for (int i = 0; i < 50; i++) {

			auto radius = ofMap(ofNoise((ofGetFrameNum() + i + k * 30) * 0.02), 0, 1, 120, 380);
			auto next_radius = ofMap(ofNoise((ofGetFrameNum() + i + 1 + k * 30) * 0.02), 0, 1, 120, 380);

			auto location = glm::vec3(radius * cos((ofGetFrameNum() + i + k * 60) * DEG_TO_RAD), radius * sin((ofGetFrameNum() + i + k * 60) * DEG_TO_RAD), 0);
			auto next = glm::vec3(next_radius * cos((ofGetFrameNum() + i + 1 + k * 60) * DEG_TO_RAD), next_radius * sin((ofGetFrameNum() + i + 1 + k * 60) * DEG_TO_RAD), 0);

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

			right.push_back(location + glm::vec3(ofMap(i, 0, 50, 0, 6) * cos(theta + PI * 0.5), ofMap(i, 0, 50, 0, 6) * sin(theta + PI * 0.5), 0));
			left.push_back(location + glm::vec3(ofMap(i, 0, 50, 0, 6) * cos(theta - PI * 0.5), ofMap(i, 0, 50, 0, 6) * sin(theta - PI * 0.5), 0));

			last_location = location;
			last_theta = theta;
		}

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

			mesh.addVertex(left[i]);
			mesh.addVertex(right[i]);
		}


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

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

		mesh.addVertex(last_location);
		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(6 * cos(theta), 6 * sin(theta), 0));
			frame.push_back(last_location + glm::vec3(6 * cos(theta), 6 * sin(theta), 0));
		}

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

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

		int color_index = ofRandom(color_list.size());
		ofSetColor(color_list[color_index], 128);
		mesh.draw();

		//ofSetColor(color_list[k % color_list.size()]);
		ofSetColor(color_list[color_index]);
		ofNoFill();
		ofBeginShape();
		ofVertices(frame);
		reverse(right.begin(), right.end());
		ofVertices(right);
		ofVertices(left);
		ofEndShape();
	}
}

//--------------------------------------------------------------
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(3);

ofEnableBlendMode(ofBlendMode::OF_BLENDMODE_ADD);

}

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

void ofApp::update() {

ofSeedRandom(39);

}

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

void ofApp::draw() {

ofColor color;

vector<ofColor> color_list;

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

for (auto hex : hex_list) {

color.setHex(hex);

color_list.push_back(color);

}

ofTranslate(ofGetWidth() * 0.5, ofGetHeight() * 0.5);

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

for (int k = 0; k < 18; k++) {

ofMesh mesh;

vector<glm::vec3> right, left, frame;

glm::vec3 last_location;

float last_theta;

for (int i = 0; i < 50; i++) {

auto radius = ofMap(ofNoise((ofGetFrameNum() + i + k * 30) * 0.02), 0, 1, 120, 380);

auto next_radius = ofMap(ofNoise((ofGetFrameNum() + i + 1 + k * 30) * 0.02), 0, 1, 120, 380);

auto location = glm::vec3(radius * cos((ofGetFrameNum() + i + k * 60) * DEG_TO_RAD), radius * sin((ofGetFrameNum() + i + k * 60) * DEG_TO_RAD), 0);

auto next = glm::vec3(next_radius * cos((ofGetFrameNum() + i + 1 + k * 60) * DEG_TO_RAD), next_radius * sin((ofGetFrameNum() + i + 1 + k * 60) * DEG_TO_RAD), 0);

auto direction = next - location;

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

right.push_back(location + glm::vec3(ofMap(i, 0, 50, 0, 6) * cos(theta + PI * 0.5), ofMap(i, 0, 50, 0, 6) * sin(theta + PI * 0.5), 0));

left.push_back(location + glm::vec3(ofMap(i, 0, 50, 0, 6) * cos(theta - PI * 0.5), ofMap(i, 0, 50, 0, 6) * sin(theta - PI * 0.5), 0));

last_location = location;

last_theta = theta;

}

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

mesh.addVertex(left[i]);

mesh.addVertex(right[i]);

}

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

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

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

}

mesh.addVertex(last_location);

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(6 * cos(theta), 6 * sin(theta), 0));

frame.push_back(last_location + glm::vec3(6 * cos(theta), 6 * sin(theta), 0));

}

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

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

}

int color_index = ofRandom(color_list.size());

ofSetColor(color_list[color_index], 128);

mesh.draw();

//ofSetColor(color_list[k % color_list.size()]);

ofSetColor(color_list[color_index]);

ofNoFill();

ofBeginShape();

ofVertices(frame);

reverse(right.begin(), right.end());

ofVertices(right);

ofVertices(left);

ofEndShape();

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20221223

2022年12月
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