2022年5月 – プログラミング de 落描き

2022年5月31日

Connected spheres. Draw by openFrameworks

[ Video ]

[ About ]
サイズの異なる球体を線でつなぐ。

Connect spheres of different sizes with lines.

[ 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;

	ofMesh base_mesh, draw_mesh;
};

#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;

ofMesh base_mesh, draw_mesh;

};

#include "ofApp.h"

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

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

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

	auto ico_sphere = ofIcoSpherePrimitive(250, 3);
	this->base_mesh = ico_sphere.getMesh();
	this->draw_mesh.setMode(ofPrimitiveMode::OF_PRIMITIVE_LINES);
}

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

	this->draw_mesh.clear();
	ofRotateX(270);

	for (auto v : this->base_mesh.getVertices()) {

		auto rotation = glm::rotate(glm::mat4(), ofMap(ofNoise(glm::vec2(v.y * 0.001 + ofGetFrameNum() * 0.005)), 0, 1, -180, 180) * (float)DEG_TO_RAD, glm::vec3(0, 1, 0));

		auto tmp_v = glm::normalize(v) * 150;
		tmp_v = glm::vec4(tmp_v, 0) * rotation;

		this->draw_mesh.addVertex(v);
		this->draw_mesh.addVertex(tmp_v);

		this->draw_mesh.addIndex(this->draw_mesh.getNumVertices() - 1);
		this->draw_mesh.addIndex(this->draw_mesh.getNumVertices() - 2);

		this->draw_mesh.addColor(ofColor(0, 0, 255));
		this->draw_mesh.addColor(ofColor(255, 0, 0));
	}
}

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

	this->cam.begin();

	int index = 0;
	for (auto& vertex : this->draw_mesh.getVertices()) {

		ofSetColor(this->draw_mesh.getColor(index++));
		ofDrawSphere(vertex, 2);
	}

	this->draw_mesh.drawWireframe();

	this->cam.end();
}

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

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

#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(30);

ofSetWindowTitle("openFrameworks");

ofBackground(0);

ofEnableBlendMode(ofBlendMode::OF_BLENDMODE_ADD);

ofEnableDepthTest();

auto ico_sphere = ofIcoSpherePrimitive(250, 3);

this->base_mesh = ico_sphere.getMesh();

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

}

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

void ofApp::update() {

this->draw_mesh.clear();

ofRotateX(270);

for (auto v : this->base_mesh.getVertices()) {

auto rotation = glm::rotate(glm::mat4(), ofMap(ofNoise(glm::vec2(v.y * 0.001 + ofGetFrameNum() * 0.005)), 0, 1, -180, 180) * (float)DEG_TO_RAD, glm::vec3(0, 1, 0));

auto tmp_v = glm::normalize(v) * 150;

tmp_v = glm::vec4(tmp_v, 0) * rotation;

this->draw_mesh.addVertex(v);

this->draw_mesh.addVertex(tmp_v);

this->draw_mesh.addIndex(this->draw_mesh.getNumVertices() - 1);

this->draw_mesh.addIndex(this->draw_mesh.getNumVertices() - 2);

this->draw_mesh.addColor(ofColor(0, 0, 255));

this->draw_mesh.addColor(ofColor(255, 0, 0));

}

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

void ofApp::draw() {

this->cam.begin();

int index = 0;

for (auto& vertex : this->draw_mesh.getVertices()) {

ofSetColor(this->draw_mesh.getColor(index++));

ofDrawSphere(vertex, 2);

}

this->draw_mesh.drawWireframe();

this->cam.end();

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20220531

2022年5月30日

Silently spinning boxes. Draw by openFrameworks

[ Video ]

[ About ]
2017年9月8日の投稿をリメイク。

Remake of a September 8, 2017 post.

[ Source ]

#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;
};

#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;

};

#include "ofApp.h"

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

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

	ofBackground(0);
	ofEnableDepthTest();
}

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

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

	this->cam.begin();
	ofRotateX(90);

	auto radius = 300;

	for (int z = -300; z <= 300; z += 300) {

		for (auto deg = 0; deg < 360; deg += 10) {

			auto location = glm::vec3(radius * cos(deg * DEG_TO_RAD), radius * sin(deg * DEG_TO_RAD), z);

			ofPushMatrix();
			ofTranslate(location);
			ofRotateZ(deg);

			ofRotateY(deg + ofGetFrameNum());

			ofFill();
			ofSetColor(0);
			ofDrawBox(45);

			ofNoFill();
			ofSetColor(255);
			ofDrawBox(45);

			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(0);

ofEnableDepthTest();

}

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

void ofApp::update() {

}

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

void ofApp::draw() {

this->cam.begin();

ofRotateX(90);

auto radius = 300;

for (int z = -300; z <= 300; z += 300) {

for (auto deg = 0; deg < 360; deg += 10) {

auto location = glm::vec3(radius * cos(deg * DEG_TO_RAD), radius * sin(deg * DEG_TO_RAD), z);

ofPushMatrix();

ofTranslate(location);

ofRotateZ(deg);

ofRotateY(deg + ofGetFrameNum());

ofFill();

ofSetColor(0);

ofDrawBox(45);

ofNoFill();

ofSetColor(255);

ofDrawBox(45);

ofPopMatrix();

}

this->cam.end();

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20220530

2022年5月29日2022年5月29日

Boxes on torus. Draw by openFrameworks

[ Video ]

[ About ]
トーラス上の座標に箱を配置する。

Place the box at the coordinates on the 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;
};

#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;

};

#include "ofApp.h"

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

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

	ofBackground(0);
	ofEnableDepthTest();
}

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

	ofSeedRandom(39);
}

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

	this->cam.begin();
	ofRotateZ(ofGetFrameNum() * 0.66);

	float v_step = 2;

	for (float v = 0; v < 360; v += v_step) {

		for (int i = 0; i < 4; i++) {

			auto u = ofMap(ofNoise(cos(v * DEG_TO_RAD) * 0.75, sin(v * DEG_TO_RAD) * 0.75, ofGetFrameNum() * 0.005), 0, 1, -360, 360) + i * 90;
			auto location = this->make_point(300, 60, u, v);

			ofPushMatrix();
			ofTranslate(location);

			ofSetColor(0);
			ofFill();
			ofDrawBox(10.5);

			ofSetColor(255);
			ofNoFill();
			ofDrawBox(10.5);

			ofPopMatrix();
		}
	}

	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());
}

#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(30);

ofSetWindowTitle("openFrameworks");

ofBackground(0);

ofEnableDepthTest();

}

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

void ofApp::update() {

ofSeedRandom(39);

}

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

void ofApp::draw() {

this->cam.begin();

ofRotateZ(ofGetFrameNum() * 0.66);

float v_step = 2;

for (float v = 0; v < 360; v += v_step) {

for (int i = 0; i < 4; i++) {

auto u = ofMap(ofNoise(cos(v * DEG_TO_RAD) * 0.75, sin(v * DEG_TO_RAD) * 0.75, ofGetFrameNum() * 0.005), 0, 1, -360, 360) + i * 90;

auto location = this->make_point(300, 60, u, v);

ofPushMatrix();

ofTranslate(location);

ofSetColor(0);

ofFill();

ofDrawBox(10.5);

ofSetColor(255);

ofNoFill();

ofDrawBox(10.5);

ofPopMatrix();

}

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/Insta20220529

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