RandomWalk – ページ 37 – プログラミング de 落描き

2022年3月17日

Erase and Repair. Draw by openFrameworks

[ Video ]

[ About ]
消しゴム。

[ 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) {};

	vector<glm::vec2> location_list;
	vector<int> life_list;
	vector<float> noise_param_list;

	vector<glm::vec2> noise_location_list;

	vector<ofPath> chara_path_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) {};

vector<glm::vec2> location_list;

vector<int> life_list;

vector<float> noise_param_list;

vector<glm::vec2> noise_location_list;

vector<ofPath> chara_path_list;

};

#include "ofApp.h"

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

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

	ofBackground(255);
	ofSetColor(0);

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

	for (char c = 'A'; c <= 'Z'; c++) {

		this->chara_path_list.push_back(font.getCharacterAsPoints(c, true, false));
	}

	for (int x = -300; x <= 300; x += 15) {

		for (int y = -300; y <= 300; y += 15) {

			this->location_list.push_back(glm::vec2(x, y));
			this->life_list.push_back(0);
			this->noise_param_list.push_back(ofRandom(1000));

		}
	}
}

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

	ofSeedRandom(39);

	this->noise_location_list.clear();

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

		this->life_list[i] = this->life_list[i] > 0 ? this->life_list[i] - 0.5 : 0;
		
		if (this->life_list[i] > 20) {

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

			this->noise_param_list[i] += ofMap(this->life_list[i], 0, 20, 0.005, 0.1);
		}
	}

	for (int i = 0; i < 1; i++) {

		int deg_start = ofMap(ofNoise(ofRandom(1000), ofGetFrameNum() * 0.005), 0, 1, -360, 360);
		int radius = ofMap(ofNoise(ofRandom(1000), ofGetFrameNum() * 0.01), 0, 1, 0, 400);

		for (int deg = deg_start; deg < deg_start + 360; deg += 120) {

			auto noise_location = glm::vec2(radius * cos(deg * DEG_TO_RAD), radius * sin(deg * DEG_TO_RAD));
			this->noise_location_list.push_back(noise_location);
			for (int i = 0; i < this->location_list.size(); i++) {

				if (glm::distance(noise_location, this->location_list[i]) < 50) {

					this->life_list[i] = this->life_list[i] < 100 ? this->life_list[i] + 8 : 100;
				}
			}
		}
	}
}

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

	ofTranslate(ofGetWindowSize() * 0.5);

	// 配色デザイン ビビッドレッド P038
	vector<ofColor> color_palette;
	color_palette.push_back(ofColor(197, 0, 24));
	color_palette.push_back(ofColor(184, 12, 65));
	color_palette.push_back(ofColor(206, 97, 110));
	color_palette.push_back(ofColor(204, 85, 68));
	color_palette.push_back(ofColor(190, 145, 176));
	color_palette.push_back(ofColor(215, 130, 63));
	color_palette.push_back(ofColor(255, 241, 51));
	color_palette.push_back(ofColor(107, 182, 187));

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

		auto color = color_palette[ofRandom(color_palette.size())];
		auto fill_flag = ofRandom(1) < 0.25;

		if (this->life_list[i] > 20) {

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

			ofSetColor(color);

			ofPushMatrix();
			ofTranslate(this->location_list[i]);

			int chara_index = ofMap(ofNoise(this->noise_param_list[i]), 0, 1, 0, this->chara_path_list.size());
			auto outline = this->chara_path_list[chara_index].getOutline();
			fill_flag < 0.5 ? ofNoFill() : ofFill();
			auto font_size = ofMap(this->life_list[i], 0, 20, 13, 0);

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

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

				auto vertices = outline[line_index].getVertices();
				for (int vertices_index = 0; vertices_index < vertices.size(); vertices_index++) {

					auto point = (vertices[vertices_index] / 100 * font_size) + glm::vec2(font_size * -0.5, font_size * 0.5);
					ofVertex(point);
				}
			}
			ofEndShape(true);

			ofPopMatrix();
		}
		else {

			ofSetColor(color);

			ofPushMatrix();
			ofTranslate(this->location_list[i]);

			int chara_index = ofMap(ofNoise(this->noise_param_list[i]), 0, 1, 0, this->chara_path_list.size());
			auto outline = this->chara_path_list[chara_index].getOutline();
			fill_flag ? ofNoFill() : ofFill();
			float font_size = 13;

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

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

				auto vertices = outline[line_index].getVertices();
				for (int vertices_index = 0; vertices_index < vertices.size(); vertices_index++) {

					auto point = (vertices[vertices_index] / 100 * font_size) + glm::vec2(font_size * -0.5, font_size * 0.5);
					ofVertex(point);
				}
			}
			ofEndShape(true);

			ofPopMatrix();;
		}
	}

	ofSetColor(color_palette[0]);
	for (int i = 0; i < this->noise_location_list.size(); i++) {

		ofDrawCircle(this->noise_location_list[i], 15);
	}
}

//--------------------------------------------------------------
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(255);

ofSetColor(0);

ofTrueTypeFont font;

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

for (char c = 'A'; c <= 'Z'; c++) {

this->chara_path_list.push_back(font.getCharacterAsPoints(c, true, false));

}

for (int x = -300; x <= 300; x += 15) {

for (int y = -300; y <= 300; y += 15) {

this->location_list.push_back(glm::vec2(x, y));

this->life_list.push_back(0);

this->noise_param_list.push_back(ofRandom(1000));

}

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

void ofApp::update() {

ofSeedRandom(39);

this->noise_location_list.clear();

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

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

if (this->life_list[i] > 20) {

}

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

this->noise_param_list[i] += ofMap(this->life_list[i], 0, 20, 0.005, 0.1);

}

for (int i = 0; i < 1; i++) {

int deg_start = ofMap(ofNoise(ofRandom(1000), ofGetFrameNum() * 0.005), 0, 1, -360, 360);

int radius = ofMap(ofNoise(ofRandom(1000), ofGetFrameNum() * 0.01), 0, 1, 0, 400);

for (int deg = deg_start; deg < deg_start + 360; deg += 120) {

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

this->noise_location_list.push_back(noise_location);

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

if (glm::distance(noise_location, this->location_list[i]) < 50) {

this->life_list[i] = this->life_list[i] < 100 ? this->life_list[i] + 8 : 100;

}

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

void ofApp::draw() {

ofTranslate(ofGetWindowSize() * 0.5);

// 配色デザインビビッドレッド P038

vector<ofColor> color_palette;

color_palette.push_back(ofColor(197, 0, 24));

color_palette.push_back(ofColor(184, 12, 65));

color_palette.push_back(ofColor(206, 97, 110));

color_palette.push_back(ofColor(204, 85, 68));

color_palette.push_back(ofColor(190, 145, 176));

color_palette.push_back(ofColor(215, 130, 63));

color_palette.push_back(ofColor(255, 241, 51));

color_palette.push_back(ofColor(107, 182, 187));

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

auto color = color_palette[ofRandom(color_palette.size())];

auto fill_flag = ofRandom(1) < 0.25;

if (this->life_list[i] > 20) {

}

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

ofSetColor(color);

ofPushMatrix();

ofTranslate(this->location_list[i]);

int chara_index = ofMap(ofNoise(this->noise_param_list[i]), 0, 1, 0, this->chara_path_list.size());

auto outline = this->chara_path_list[chara_index].getOutline();

fill_flag < 0.5 ? ofNoFill() : ofFill();

auto font_size = ofMap(this->life_list[i], 0, 20, 13, 0);

ofBeginShape();

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

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

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

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

auto point = (vertices[vertices_index] / 100 * font_size) + glm::vec2(font_size * -0.5, font_size * 0.5);

ofVertex(point);

}

ofEndShape(true);

ofPopMatrix();

}

else {

ofSetColor(color);

ofPushMatrix();

ofTranslate(this->location_list[i]);

int chara_index = ofMap(ofNoise(this->noise_param_list[i]), 0, 1, 0, this->chara_path_list.size());

auto outline = this->chara_path_list[chara_index].getOutline();

fill_flag ? ofNoFill() : ofFill();

float font_size = 13;

ofBeginShape();

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

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

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

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

auto point = (vertices[vertices_index] / 100 * font_size) + glm::vec2(font_size * -0.5, font_size * 0.5);

ofVertex(point);

}

ofEndShape(true);

ofPopMatrix();;

}

ofSetColor(color_palette[0]);

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

ofDrawCircle(this->noise_location_list[i], 15);

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20220317

2022年3月14日

Hexagons that disappear and emerge. Draw by openFrameworks

[ Video ]

[ About ]
ランダムウォークの軌跡で消えて現れる六角形。

[ 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 mouseEntered(int x, int y) {};
	void mouseExited(int x, int y) {};
	void windowResized(int w, int h) {};
	void dragEvent(ofDragInfo dragInfo) {};
	void gotMessage(ofMessage msg) {};

	void setHexagonToMesh(ofMesh& face_target, ofMesh& frame_target, glm::vec3 location, float radius, float height);

	vector<glm::vec3> location_list;
	vector<int> life_list;
	vector<float> noise_param_list;
	vector<glm::vec3> noise_location_list;

	ofEasyCam cam;
	ofMesh face, frame;
};

#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 mouseEntered(int x, int y) {};

void mouseExited(int x, int y) {};

void windowResized(int w, int h) {};

void dragEvent(ofDragInfo dragInfo) {};

void gotMessage(ofMessage msg) {};

void setHexagonToMesh(ofMesh& face_target, ofMesh& frame_target, glm::vec3 location, float radius, float height);

vector<glm::vec3> location_list;

vector<int> life_list;

vector<float> noise_param_list;

vector<glm::vec3> noise_location_list;

ofEasyCam cam;

ofMesh face, frame;

};

#include "ofApp.h"

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

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

	ofBackground(255);
	ofSetLineWidth(2);
	ofEnableDepthTest();

	auto radius = 15;
	auto x_span = radius * sqrt(3);
	auto flg = true;
	for (float y = -500; y < 500; y += radius * 1.5) {

		for (float x = -500; x < 500; x += x_span) {

			glm::vec3 location;
			if (flg) {

				location = glm::vec3(x, y, 0);
			}
			else {

				location = glm::vec3(x + (x_span / 2), y, 0);
			}

			this->location_list.push_back(location);
			this->life_list.push_back(0);
			this->noise_param_list.push_back(ofRandom(1000));
		}
		flg = !flg;
	}

	this->frame.setMode(ofPrimitiveMode::OF_PRIMITIVE_LINES);
}

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

	ofSeedRandom(39);

	this->face.clear();
	this->frame.clear();
	this->noise_location_list.clear();

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

		this->life_list[i] = this->life_list[i] > 0 ? this->life_list[i] - 0.5 : 0;
		if (this->life_list[i] > 0) {

			this->noise_param_list[i] += ofMap(this->life_list[i], 0, 100, 0.05, 0.1);
		}
	}

	for (int i = 0; i < 1; i++) {

		int deg_start = ofMap(ofNoise(ofRandom(1000), ofGetFrameNum() * 0.005), 0, 1, -360, 360);
		int radius = ofMap(ofNoise(ofRandom(1000), ofGetFrameNum() * 0.01), 0, 1, 0, 400);

		for (int deg = deg_start; deg < deg_start + 360; deg += 120) {

			auto noise_location = glm::vec3(radius * cos(deg * DEG_TO_RAD), radius * sin(deg * DEG_TO_RAD), 0);
			this->noise_location_list.push_back(noise_location);
			for (int i = 0; i < this->location_list.size(); i++) {

				if (glm::distance(noise_location, this->location_list[i]) < 50) {

					this->life_list[i] = this->life_list[i] < 100 ? this->life_list[i] + 4 : 100;
				}
			}
		}
	}

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

		auto height = 5.f;
		if (this->life_list[i] > 10) {

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

			this->setHexagonToMesh(this->face, this->frame, this->location_list[i], ofMap(this->life_list[i], 0, 10, 15, 0), height);
		}
		else {

			this->setHexagonToMesh(this->face, this->frame, this->location_list[i], 15, height);
		}
	}
}

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

	this->cam.begin();

	this->face.draw();
	this->frame.draw();

	for (auto& noise_location : this->noise_location_list) {

		ofFill();
		ofSetColor(255, 0, 0);
		ofDrawCircle(noise_location, 10);

		ofNoFill();
		ofSetColor(0);
		ofDrawCircle(noise_location, 10);
	}

	this->cam.end();
}

//--------------------------------------------------------------
void ofApp::setHexagonToMesh(ofMesh& face_target, ofMesh& frame_target, glm::vec3 location, float radius, float height) {

	ofColor face_color = ofColor(0);
	ofColor frame_color = ofColor(255);

	for (int deg = 90; deg < 450; deg += 60) {

		auto face_radius = radius - 0.5;
		auto face_index = face_target.getNumVertices();

		vector<glm::vec3> vertices;
		vertices.push_back(location + glm::vec3(0, 0, 0));
		vertices.push_back(location + glm::vec3(face_radius * cos(deg * DEG_TO_RAD), face_radius * sin(deg * DEG_TO_RAD), 0));
		vertices.push_back(location + glm::vec3(face_radius * cos((deg + 60) * DEG_TO_RAD), face_radius * sin((deg + 60) * DEG_TO_RAD), 0));
		vertices.push_back(location + glm::vec3(0, 0, height));
		vertices.push_back(location + glm::vec3(face_radius * cos((deg + 60) * DEG_TO_RAD), face_radius * sin((deg + 60) * DEG_TO_RAD), height));
		vertices.push_back(location + glm::vec3(face_radius * cos(deg * DEG_TO_RAD), face_radius * sin(deg * DEG_TO_RAD), height));

		face_target.addVertices(vertices);

		face_target.addIndex(face_index + 0); face_target.addIndex(face_index + 1); face_target.addIndex(face_index + 2);
		face_target.addIndex(face_index + 3); face_target.addIndex(face_index + 4); face_target.addIndex(face_index + 5);
		face_target.addIndex(face_index + 1); face_target.addIndex(face_index + 2); face_target.addIndex(face_index + 4);
		face_target.addIndex(face_index + 1); face_target.addIndex(face_index + 4); face_target.addIndex(face_index + 5);

		auto frame_index = frame_target.getNumVertices();

		vertices.clear();
		vertices.push_back(location + glm::vec3(0, 0, 0));
		vertices.push_back(location + glm::vec3(radius * cos(deg * DEG_TO_RAD), radius * sin(deg * DEG_TO_RAD), 0));
		vertices.push_back(location + glm::vec3(radius * cos((deg + 60) * DEG_TO_RAD), radius * sin((deg + 60) * DEG_TO_RAD), 0));
		vertices.push_back(location + glm::vec3(0, 0, height));
		vertices.push_back(location + glm::vec3(radius * cos((deg + 60) * DEG_TO_RAD), radius * sin((deg + 60) * DEG_TO_RAD), height));
		vertices.push_back(location + glm::vec3(radius * cos(deg * DEG_TO_RAD), radius * sin(deg * DEG_TO_RAD), height));

		frame_target.addVertices(vertices);

		frame_target.addIndex(frame_index + 1); frame_target.addIndex(frame_index + 2);
		frame_target.addIndex(frame_index + 4); frame_target.addIndex(frame_index + 5);
		frame_target.addIndex(frame_index + 1); frame_target.addIndex(frame_index + 5);
		frame_target.addIndex(frame_index + 2); frame_target.addIndex(frame_index + 4);

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

			face_target.addColor(face_color);
			frame_target.addColor(frame_color);
		}
	}
}

//--------------------------------------------------------------
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(255);

ofSetLineWidth(2);

ofEnableDepthTest();

auto radius = 15;

auto x_span = radius * sqrt(3);

auto flg = true;

for (float y = -500; y < 500; y += radius * 1.5) {

for (float x = -500; x < 500; x += x_span) {

glm::vec3 location;

if (flg) {

location = glm::vec3(x, y, 0);

}

else {

location = glm::vec3(x + (x_span / 2), y, 0);

}

this->location_list.push_back(location);

this->life_list.push_back(0);

this->noise_param_list.push_back(ofRandom(1000));

}

flg = !flg;

}

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

}

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

void ofApp::update() {

ofSeedRandom(39);

this->face.clear();

this->frame.clear();

this->noise_location_list.clear();

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

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

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

this->noise_param_list[i] += ofMap(this->life_list[i], 0, 100, 0.05, 0.1);

}

for (int i = 0; i < 1; i++) {

int deg_start = ofMap(ofNoise(ofRandom(1000), ofGetFrameNum() * 0.005), 0, 1, -360, 360);

int radius = ofMap(ofNoise(ofRandom(1000), ofGetFrameNum() * 0.01), 0, 1, 0, 400);

for (int deg = deg_start; deg < deg_start + 360; deg += 120) {

auto noise_location = glm::vec3(radius * cos(deg * DEG_TO_RAD), radius * sin(deg * DEG_TO_RAD), 0);

this->noise_location_list.push_back(noise_location);

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

if (glm::distance(noise_location, this->location_list[i]) < 50) {

this->life_list[i] = this->life_list[i] < 100 ? this->life_list[i] + 4 : 100;

}

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

auto height = 5.f;

if (this->life_list[i] > 10) {

}

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

this->setHexagonToMesh(this->face, this->frame, this->location_list[i], ofMap(this->life_list[i], 0, 10, 15, 0), height);

}

else {

this->setHexagonToMesh(this->face, this->frame, this->location_list[i], 15, height);

}

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

void ofApp::draw() {

this->cam.begin();

this->face.draw();

this->frame.draw();

for (auto& noise_location : this->noise_location_list) {

ofFill();

ofSetColor(255, 0, 0);

ofDrawCircle(noise_location, 10);

ofNoFill();

ofSetColor(0);

ofDrawCircle(noise_location, 10);

}

this->cam.end();

}

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

void ofApp::setHexagonToMesh(ofMesh& face_target, ofMesh& frame_target, glm::vec3 location, float radius, float height) {

ofColor face_color = ofColor(0);

ofColor frame_color = ofColor(255);

for (int deg = 90; deg < 450; deg += 60) {

auto face_radius = radius - 0.5;

auto face_index = face_target.getNumVertices();

vector<glm::vec3> vertices;

vertices.push_back(location + glm::vec3(0, 0, 0));

vertices.push_back(location + glm::vec3(face_radius * cos(deg * DEG_TO_RAD), face_radius * sin(deg * DEG_TO_RAD), 0));

vertices.push_back(location + glm::vec3(face_radius * cos((deg + 60) * DEG_TO_RAD), face_radius * sin((deg + 60) * DEG_TO_RAD), 0));

vertices.push_back(location + glm::vec3(0, 0, height));

vertices.push_back(location + glm::vec3(face_radius * cos((deg + 60) * DEG_TO_RAD), face_radius * sin((deg + 60) * DEG_TO_RAD), height));

vertices.push_back(location + glm::vec3(face_radius * cos(deg * DEG_TO_RAD), face_radius * sin(deg * DEG_TO_RAD), height));

face_target.addVertices(vertices);

face_target.addIndex(face_index + 0); face_target.addIndex(face_index + 1); face_target.addIndex(face_index + 2);

face_target.addIndex(face_index + 3); face_target.addIndex(face_index + 4); face_target.addIndex(face_index + 5);

face_target.addIndex(face_index + 1); face_target.addIndex(face_index + 2); face_target.addIndex(face_index + 4);

face_target.addIndex(face_index + 1); face_target.addIndex(face_index + 4); face_target.addIndex(face_index + 5);

auto frame_index = frame_target.getNumVertices();

vertices.clear();

vertices.push_back(location + glm::vec3(0, 0, 0));

vertices.push_back(location + glm::vec3(radius * cos(deg * DEG_TO_RAD), radius * sin(deg * DEG_TO_RAD), 0));

vertices.push_back(location + glm::vec3(radius * cos((deg + 60) * DEG_TO_RAD), radius * sin((deg + 60) * DEG_TO_RAD), 0));

vertices.push_back(location + glm::vec3(0, 0, height));

vertices.push_back(location + glm::vec3(radius * cos((deg + 60) * DEG_TO_RAD), radius * sin((deg + 60) * DEG_TO_RAD), height));

vertices.push_back(location + glm::vec3(radius * cos(deg * DEG_TO_RAD), radius * sin(deg * DEG_TO_RAD), height));

frame_target.addVertices(vertices);

frame_target.addIndex(frame_index + 1); frame_target.addIndex(frame_index + 2);

frame_target.addIndex(frame_index + 4); frame_target.addIndex(frame_index + 5);

frame_target.addIndex(frame_index + 1); frame_target.addIndex(frame_index + 5);

frame_target.addIndex(frame_index + 2); frame_target.addIndex(frame_index + 4);

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

face_target.addColor(face_color);

frame_target.addColor(frame_color);

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20220314

2022年3月10日

Green wreath. Draw by openFrameworks

[ Video ]

[ About ]
alpha = ofMap(i, 0, 1500, 0, 255);

[ 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) {};

	vector<ofColor> color_palette;
};

#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) {};

vector<ofColor> color_palette;

};

#include "ofApp.h"	

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

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

	ofBackground(255);
	ofSetLineWidth(2);
	
	// 配色デザイン ソフトグリーン P114
	this->color_palette.push_back(ofColor(97, 157, 110));
	this->color_palette.push_back(ofColor(119, 180, 106));
	this->color_palette.push_back(ofColor(143, 173, 91));
	this->color_palette.push_back(ofColor(145, 195, 161));
	this->color_palette.push_back(ofColor(93, 169, 145));
	this->color_palette.push_back(ofColor(249, 229, 128));
	this->color_palette.push_back(ofColor(131, 193, 215));
	this->color_palette.push_back(ofColor(255, 255, 255));
}

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

	ofSeedRandom(39);
}

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

	ofTranslate(ofGetWindowSize() * 0.5);

	for (int i = 0; i < 1500; i++) {

		auto radius = ofMap(ofNoise(ofRandom(1000), ofGetFrameNum() * 0.008), 0, 1, 200, 300);
		auto deg = ofMap(ofNoise(ofRandom(1000), ofGetFrameNum() * 0.0005), 0, 1, -360, 360);
		auto x = radius * cos(deg * DEG_TO_RAD);
		auto y = radius * sin(deg * DEG_TO_RAD);
		auto size = ofRandom(3, 15);
		int color_index = ofRandom(this->color_palette.size());
		int line_index = (color_index + 1) % this->color_palette.size();

		auto color = this->color_palette[color_index];
		color.setHsb(color.getHue(), color.getSaturation(), ofMap(i, 0, 1500, 0, 255));
		auto line_color = this->color_palette[line_index];
		line_color.setHsb(line_color.getHue(), line_color.getSaturation(), ofMap(i, 0, 1000, 0, 255));

		ofFill();
		ofSetColor(color);
		ofDrawCircle(glm::vec2(x, y), size);

		ofNoFill();
		ofSetColor(line_color);
		ofDrawCircle(glm::vec2(x, y), size);
	}
}


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

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

#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(30);

ofSetWindowTitle("openFrameworks");

ofBackground(255);

ofSetLineWidth(2);

// 配色デザインソフトグリーン P114

this->color_palette.push_back(ofColor(97, 157, 110));

this->color_palette.push_back(ofColor(119, 180, 106));

this->color_palette.push_back(ofColor(143, 173, 91));

this->color_palette.push_back(ofColor(145, 195, 161));

this->color_palette.push_back(ofColor(93, 169, 145));

this->color_palette.push_back(ofColor(249, 229, 128));

this->color_palette.push_back(ofColor(131, 193, 215));

this->color_palette.push_back(ofColor(255, 255, 255));

}

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

void ofApp::update() {

ofSeedRandom(39);

}

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

void ofApp::draw() {

ofTranslate(ofGetWindowSize() * 0.5);

for (int i = 0; i < 1500; i++) {

auto radius = ofMap(ofNoise(ofRandom(1000), ofGetFrameNum() * 0.008), 0, 1, 200, 300);

auto deg = ofMap(ofNoise(ofRandom(1000), ofGetFrameNum() * 0.0005), 0, 1, -360, 360);

auto x = radius * cos(deg * DEG_TO_RAD);

auto y = radius * sin(deg * DEG_TO_RAD);

auto size = ofRandom(3, 15);

int color_index = ofRandom(this->color_palette.size());

int line_index = (color_index + 1) % this->color_palette.size();

auto color = this->color_palette[color_index];

color.setHsb(color.getHue(), color.getSaturation(), ofMap(i, 0, 1500, 0, 255));

auto line_color = this->color_palette[line_index];

line_color.setHsb(line_color.getHue(), line_color.getSaturation(), ofMap(i, 0, 1000, 0, 255));

ofFill();

ofSetColor(color);

ofDrawCircle(glm::vec2(x, y), size);

ofNoFill();

ofSetColor(line_color);

ofDrawCircle(glm::vec2(x, y), size);

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20220310

2025年7月
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