プログラミング de 落描き

2019年4月18日2019年4月18日

Particle move on torus. openFrameworks

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トーラス面の上をパーティクルが移動

Particle move on torus.

[ 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) {};

	glm::vec3 make_point(float R, float r, float u, float v);
	
	ofEasyCam cam;
	vector<glm::vec3> locations;
};

#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) {};

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

ofEasyCam cam;

vector<glm::vec3> locations;

};

#include "ofApp.h"	

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

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

	ofBackground(239);
	ofSetColor(39);
	ofEnableDepthTest();
	ofSetLineWidth(1.5);
}

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

	ofSeedRandom(39);
	this->locations.clear();
	while (this->locations.size() < 500) {

		float R = 300;
		float r = 50;
		float u = ofRandom(0, 360) + ofGetFrameNum() * ofRandom(0.5, 2);
		float v = ofRandom(0, 360);

		this->locations.push_back(this->make_point(R, r, u, v));
	}
}

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

	this->cam.begin();

	for (auto& location : this->locations) {

		ofSetColor(39);
		ofDrawSphere(location, 3);
		for (auto& other : this->locations) {

			if (location == other) { continue; }
			float distance = glm::distance(location, other);
			if (distance < 50) {

				ofSetColor(ofMap(distance, 10, 50, 39, 239));
				ofDrawLine(location, other);
			}
		}

	}

	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;

	float x = (R + r * cos(u)) * cos(v);
	float y = (R + r * cos(u)) * sin(v);
	float z = r * sin(u);

	return glm::vec3(x, y, z);
}

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

ofSetLineWidth(1.5);

}

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

void ofApp::update() {

ofSeedRandom(39);

this->locations.clear();

while (this->locations.size() < 500) {

float R = 300;

float r = 50;

float u = ofRandom(0, 360) + ofGetFrameNum() * ofRandom(0.5, 2);

float v = ofRandom(0, 360);

this->locations.push_back(this->make_point(R, r, u, v));

}

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

void ofApp::draw() {

this->cam.begin();

for (auto& location : this->locations) {

ofSetColor(39);

ofDrawSphere(location, 3);

for (auto& other : this->locations) {

if (location == other) { continue; }

float distance = glm::distance(location, other);

if (distance < 50) {

ofSetColor(ofMap(distance, 10, 50, 39, 239));

ofDrawLine(location, other);

}

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;

float x = (R + r * cos(u)) * cos(v);

float y = (R + r * cos(u)) * sin(v);

float 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/Insta20190418

[ Sponsor Link ]

2019年4月17日2019年4月17日

Yin Yang. openFrameworks

[ Video ]

[ About ]
円を2分割して、陰陽(Yin Yang)をイメージしてコーディングしたら、たこ焼きイラストを生成するプログラムが出来ました

Yin Yang.

[ 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 draw_shape(vector<glm::vec2>& side, vector<glm::vec2>& noise);
};

#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 draw_shape(vector<glm::vec2>& side, vector<glm::vec2>& noise);

};

#include "ofApp.h"	

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

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

	ofBackground(239);
	ofSetColor(39);
	ofSetLineWidth(1.5);
}

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

	ofSeedRandom(39);
}

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

	ofFill();

	int span = 144;
	int len = 120;
	int radius = 60;
	bool flag = true;
	for (int location_y = span * 0.5; location_y < ofGetHeight(); location_y += span) {

		for (int location_x = span * 0.5; location_x < ofGetWidth(); location_x += span) {

			ofPushMatrix();
			ofTranslate(location_x, location_y);

			vector<glm::vec2> top, noise, bottom;
			for (int deg = 0; deg <= 180; deg++) {

				auto point = glm::vec2(radius * cos(deg * DEG_TO_RAD), radius * sin(deg * DEG_TO_RAD));
				bottom.push_back(point);
				noise.push_back(glm::vec2(point.x, ofMap(ofNoise(location_y, (location_x + point.x) * 0.03, ofGetFrameNum() * 0.008), 0, 1, -point.y * 0.5, point.y * 0.5) + 2));
			}
			this->draw_shape(bottom, noise);

			ofGetFill() ? ofNoFill() : ofFill();

			for (int deg = 180; deg <= 360; deg++) {

				auto point = glm::vec2(radius * cos(deg * DEG_TO_RAD), radius * sin(deg * DEG_TO_RAD));
				top.push_back(point);
				noise.push_back(glm::vec2(point.x, ofMap(ofNoise(location_y, (location_x + point.x) * 0.03, ofGetFrameNum() * 0.008), 0, 1, point.y * 0.5, -point.y * 0.5) - 2));
			}
			this->draw_shape(top, noise);

			ofPopMatrix();
		}
	}
}

//--------------------------------------------------------------
void ofApp::draw_shape(vector<glm::vec2>& side, vector<glm::vec2>& noise) {

	std::reverse(noise.begin(), noise.end());

	ofBeginShape();
	ofVertices(side);
	ofVertices(noise);
	ofEndShape(true);

	side.clear();
	noise.clear();
}

//--------------------------------------------------------------
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(1.5);

}

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

void ofApp::update() {

ofSeedRandom(39);

}

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

void ofApp::draw() {

ofFill();

int span = 144;

int len = 120;

int radius = 60;

bool flag = true;

for (int location_y = span * 0.5; location_y < ofGetHeight(); location_y += span) {

for (int location_x = span * 0.5; location_x < ofGetWidth(); location_x += span) {

ofPushMatrix();

ofTranslate(location_x, location_y);

vector<glm::vec2> top, noise, bottom;

for (int deg = 0; deg <= 180; deg++) {

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

bottom.push_back(point);

noise.push_back(glm::vec2(point.x, ofMap(ofNoise(location_y, (location_x + point.x) * 0.03, ofGetFrameNum() * 0.008), 0, 1, -point.y * 0.5, point.y * 0.5) + 2));

}

this->draw_shape(bottom, noise);

ofGetFill() ? ofNoFill() : ofFill();

for (int deg = 180; deg <= 360; deg++) {

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

top.push_back(point);

noise.push_back(glm::vec2(point.x, ofMap(ofNoise(location_y, (location_x + point.x) * 0.03, ofGetFrameNum() * 0.008), 0, 1, point.y * 0.5, -point.y * 0.5) - 2));

}

this->draw_shape(top, noise);

ofPopMatrix();

}

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

void ofApp::draw_shape(vector<glm::vec2>& side, vector<glm::vec2>& noise) {

std::reverse(noise.begin(), noise.end());

ofBeginShape();

ofVertices(side);

ofVertices(noise);

ofEndShape(true);

side.clear();

noise.clear();

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20190417

[ Sponsor Link ]

2019年4月16日2019年4月16日

Tiles. openFrameworks

[ Video ]

[ About ]
タイル文字

Tiles.

[ 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) {};

	ofEasyCam cam;

	int span;
	vector<glm::vec2> locations;
};

#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) {};

ofEasyCam cam;

int span;

vector<glm::vec2> locations;

};

#include "ofApp.h"

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

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

	ofBackground(239);
	ofSetLineWidth(2);
	ofEnableDepthTest();
	ofSetRectMode(ofRectMode::OF_RECTMODE_CENTER);

	ofTrueTypeFont font;
	font.loadFont("fonts/Kazesawa-Bold.ttf", 250, true, true, true);
	this->span = 10;

	ofFbo fbo;
	fbo.allocate(ofGetWidth(), ofGetHeight());
	fbo.begin();
	ofClear(0);
	ofTranslate(ofGetWidth() * 0.5, ofGetHeight() * 0.5);

	string word = "TILE";
	font.drawString(word, font.stringWidth(word) * -0.5, font.stringHeight(word) * 0.5);

	fbo.end();

	ofPixels pixels;
	fbo.readToPixels(pixels);

	for (int x = 0; x < fbo.getWidth(); x += this->span) {

		for (int y = 0; y < fbo.getHeight(); y += this->span) {

			if (pixels.getColor(x, y) != ofColor(0, 0)) {

				this->locations.push_back(glm::vec2(x - ofGetWidth() * 0.5, ofGetHeight() - y - ofGetHeight() * 0.5));
			}
		}
	}
}

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

}

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

	this->cam.begin();

	float threshold = 0.8;
	for (auto& location : this->locations) {

		float noise_value = ofNoise(location.x * 0.005, location.y * 0.005, ofGetFrameNum() * 0.005);
		int z = 0;
		float rotate_x = 0.f;
		if (noise_value > threshold) {

			z += ofMap(noise_value, threshold, 1.0, 0, 300);
			rotate_x = ofMap(noise_value, threshold, 1.0, 0, 360 * 5);
		}

		auto draw_location = glm::vec3(location, z);
				
		ofPushMatrix();
		ofTranslate(draw_location);
		ofRotateX(rotate_x);
		ofRotateY(rotate_x);

		ofFill();
		ofSetColor(239);
		ofDrawRectangle(glm::vec3(), this->span - 1, this->span - 1);

		ofNoFill();
		ofSetColor(39);
		ofDrawRectangle(glm::vec3(), this->span, this->span);

		ofPopMatrix();
	}

	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);

ofSetLineWidth(2);

ofEnableDepthTest();

ofSetRectMode(ofRectMode::OF_RECTMODE_CENTER);

ofTrueTypeFont font;

font.loadFont("fonts/Kazesawa-Bold.ttf", 250, true, true, true);

this->span = 10;

ofFbo fbo;

fbo.allocate(ofGetWidth(), ofGetHeight());

fbo.begin();

ofClear(0);

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

string word = "TILE";

font.drawString(word, font.stringWidth(word) * -0.5, font.stringHeight(word) * 0.5);

fbo.end();

ofPixels pixels;

fbo.readToPixels(pixels);

for (int x = 0; x < fbo.getWidth(); x += this->span) {

for (int y = 0; y < fbo.getHeight(); y += this->span) {

if (pixels.getColor(x, y) != ofColor(0, 0)) {

this->locations.push_back(glm::vec2(x - ofGetWidth() * 0.5, ofGetHeight() - y - ofGetHeight() * 0.5));

}

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

void ofApp::update() {

}

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

void ofApp::draw() {

this->cam.begin();

float threshold = 0.8;

for (auto& location : this->locations) {

float noise_value = ofNoise(location.x * 0.005, location.y * 0.005, ofGetFrameNum() * 0.005);

int z = 0;

float rotate_x = 0.f;

if (noise_value > threshold) {

z += ofMap(noise_value, threshold, 1.0, 0, 300);

rotate_x = ofMap(noise_value, threshold, 1.0, 0, 360 * 5);

}

auto draw_location = glm::vec3(location, z);

ofPushMatrix();

ofTranslate(draw_location);

ofRotateX(rotate_x);

ofRotateY(rotate_x);

ofFill();

ofSetColor(239);

ofDrawRectangle(glm::vec3(), this->span - 1, this->span - 1);

ofNoFill();

ofSetColor(39);

ofDrawRectangle(glm::vec3(), this->span, this->span);

ofPopMatrix();

}

this->cam.end();

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20190416

[ Sponsor Link ]

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