プログラミング de 落描き – ページ 279 – クリエイティブ・コーディングによる生成物とソース

2023年3月26日

The truth. Draw by openFrameworks

[ Video ]

[ About ]
真実。

[ 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(0);
	ofSetLineWidth(1.5);
}
//--------------------------------------------------------------
void ofApp::update() {

	ofSeedRandom(39);
}

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

	this->cam.begin();
	ofRotateY(ofGetFrameNum() * 1.5);

	auto radius = 240;
	int deg_span = 4;
	auto len = 120;

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

		ofPushMatrix();
		ofRotate(deg);
		ofTranslate(radius * cos(0 * DEG_TO_RAD), radius * sin(0 * DEG_TO_RAD));
		ofRotateY(ofGetFrameNum() + deg * 4);

		auto location_1 = glm::vec3((len * 0.5) * cos(0 * DEG_TO_RAD), (len * 0.5) * sin(0 * DEG_TO_RAD), 0);
		auto location_2 = glm::vec3((len * -0.5) * cos(0 * DEG_TO_RAD), (len * -0.5) * sin(0 * DEG_TO_RAD), 0);

		ofDrawLine(location_1, location_2);
		ofDrawSphere(location_1, 3);
		ofDrawSphere(location_2, 6);

		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);

ofSetLineWidth(1.5);

}

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

void ofApp::update() {

ofSeedRandom(39);

}

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

void ofApp::draw() {

this->cam.begin();

ofRotateY(ofGetFrameNum() * 1.5);

auto radius = 240;

int deg_span = 4;

auto len = 120;

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

ofPushMatrix();

ofRotate(deg);

ofTranslate(radius * cos(0 * DEG_TO_RAD), radius * sin(0 * DEG_TO_RAD));

ofRotateY(ofGetFrameNum() + deg * 4);

auto location_1 = glm::vec3((len * 0.5) * cos(0 * DEG_TO_RAD), (len * 0.5) * sin(0 * DEG_TO_RAD), 0);

auto location_2 = glm::vec3((len * -0.5) * cos(0 * DEG_TO_RAD), (len * -0.5) * sin(0 * DEG_TO_RAD), 0);

ofDrawLine(location_1, location_2);

ofDrawSphere(location_1, 3);

ofDrawSphere(location_2, 6);

ofPopMatrix();

}

this->cam.end();

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20230326

2023年3月25日

expansion and contraction. Draw by openFrameworks

[ Video ]

[ About ]
伸びチジミ。

[ 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(0);
	ofSetLineWidth(1.5);
}
//--------------------------------------------------------------
void ofApp::update() {

	ofSeedRandom(39);
}

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

	this->cam.begin();

	auto radius = 240;
	int deg_span = 4;
	auto len = 120;

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

		ofPushMatrix();
		ofRotate(deg);
		ofTranslate(radius * cos(0 * DEG_TO_RAD), radius * sin(0 * DEG_TO_RAD));
		ofRotateY(ofGetFrameNum() + deg * 8);

		auto location_1 = glm::vec3((len * 0.5) * cos(0 * DEG_TO_RAD), (len * 0.5) * sin(0 * DEG_TO_RAD), 0);
		auto location_2 = glm::vec3((len * -0.5) * cos(0 * DEG_TO_RAD), (len * -0.5) * sin(0 * DEG_TO_RAD), 0);

		ofDrawLine(location_1, location_2);
		ofDrawSphere(location_1, 3);
		ofDrawSphere(location_2, 3);

		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);

ofSetLineWidth(1.5);

}

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

void ofApp::update() {

ofSeedRandom(39);

}

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

void ofApp::draw() {

this->cam.begin();

auto radius = 240;

int deg_span = 4;

auto len = 120;

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

ofPushMatrix();

ofRotate(deg);

ofTranslate(radius * cos(0 * DEG_TO_RAD), radius * sin(0 * DEG_TO_RAD));

ofRotateY(ofGetFrameNum() + deg * 8);

auto location_1 = glm::vec3((len * 0.5) * cos(0 * DEG_TO_RAD), (len * 0.5) * sin(0 * DEG_TO_RAD), 0);

auto location_2 = glm::vec3((len * -0.5) * cos(0 * DEG_TO_RAD), (len * -0.5) * sin(0 * DEG_TO_RAD), 0);

ofDrawLine(location_1, location_2);

ofDrawSphere(location_1, 3);

ofDrawSphere(location_2, 3);

ofPopMatrix();

}

this->cam.end();

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20230325

2023年3月24日2023年3月24日

Rampaging torus. Draw by openFrameworks

[ video ]

[ About ]
暴れトーラス。

[ 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;
};

#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;

};

#include "ofApp.h"

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

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

	ofBackground(0);
	ofSetLineWidth(3);
	ofEnableDepthTest();
}

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

	ofSeedRandom(39);
}

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

	this->cam.begin();
	ofRotateY(ofGetFrameNum() * 2);

	int v_span = 8;
	int u_span = 90;
	int R = 200;

	ofMesh face, line;
	line.setMode(ofPrimitiveMode::OF_PRIMITIVE_LINES);

	for (int v = 0; v <= 360; v += v_span) {

		int u_start = ofMap(ofNoise(cos(v * DEG_TO_RAD) * 0.25, sin(v * DEG_TO_RAD) * 0.25, ofGetFrameNum() * 0.015), 0, 1, -360, 360);
		int next_u = u_start + u_span;
		int r = ofMap(ofNoise(glm::vec4(this->make_point(R, 30, u_start, v) * 0.01, ofGetFrameNum() * 0.025)), 0, 1, 0, 150);
		for (int u = u_start; u < u_start + 360; u += u_span) {

			face.addVertex(this->make_point(R, r, u, v));
			face.addVertex(this->make_point(R, r, u + u_span, v));
			face.addVertex(this->make_point(R, r, next_u + u_span, v + v_span * 0.8));
			face.addVertex(this->make_point(R, r, next_u, v + v_span * 0.8));

			line.addVertex(this->make_point(R, r, u, v));
			line.addVertex(this->make_point(R, r, u + u_span, v));
			line.addVertex(this->make_point(R, r, next_u + u_span, v + v_span * 0.8));
			line.addVertex(this->make_point(R, r, next_u, v + v_span * 0.8));

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

			face.addColor(face_color);
			face.addColor(face_color);
			face.addColor(face_color);
			face.addColor(face_color);

			line.addColor(line_color);
			line.addColor(line_color);
			line.addColor(line_color);
			line.addColor(line_color);

			face.addIndex(face.getNumVertices() - 1); face.addIndex(face.getNumVertices() - 2); face.addIndex(face.getNumVertices() - 3);
			face.addIndex(face.getNumVertices() - 1); face.addIndex(face.getNumVertices() - 3); face.addIndex(face.getNumVertices() - 4);

			line.addIndex(line.getNumVertices() - 1); line.addIndex(line.getNumVertices() - 2);
			line.addIndex(line.getNumVertices() - 3); line.addIndex(line.getNumVertices() - 4);

			line.addIndex(line.getNumVertices() - 1); line.addIndex(line.getNumVertices() - 3);

			next_u += u_span;

		}
	}

	face.drawFaces();
	line.drawWireframe();

	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());
}

100

101

102

#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(30);

ofSetWindowTitle("openframeworks");

ofBackground(0);

ofSetLineWidth(3);

ofEnableDepthTest();

}

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

void ofApp::update() {

ofSeedRandom(39);

}

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

void ofApp::draw() {

this->cam.begin();

ofRotateY(ofGetFrameNum() * 2);

int v_span = 8;

int u_span = 90;

int R = 200;

ofMesh face, line;

line.setMode(ofPrimitiveMode::OF_PRIMITIVE_LINES);

for (int v = 0; v <= 360; v += v_span) {

int u_start = ofMap(ofNoise(cos(v * DEG_TO_RAD) * 0.25, sin(v * DEG_TO_RAD) * 0.25, ofGetFrameNum() * 0.015), 0, 1, -360, 360);

int next_u = u_start + u_span;

int r = ofMap(ofNoise(glm::vec4(this->make_point(R, 30, u_start, v) * 0.01, ofGetFrameNum() * 0.025)), 0, 1, 0, 150);

for (int u = u_start; u < u_start + 360; u += u_span) {

face.addVertex(this->make_point(R, r, u, v));

face.addVertex(this->make_point(R, r, u + u_span, v));

face.addVertex(this->make_point(R, r, next_u + u_span, v + v_span * 0.8));

face.addVertex(this->make_point(R, r, next_u, v + v_span * 0.8));

line.addVertex(this->make_point(R, r, u, v));

line.addVertex(this->make_point(R, r, u + u_span, v));

line.addVertex(this->make_point(R, r, next_u + u_span, v + v_span * 0.8));

line.addVertex(this->make_point(R, r, next_u, v + v_span * 0.8));

ofColor face_color = ofColor(0);

ofColor line_color = ofColor(255);

face.addColor(face_color);

line.addColor(line_color);

face.addIndex(face.getNumVertices() - 1); face.addIndex(face.getNumVertices() - 2); face.addIndex(face.getNumVertices() - 3);

face.addIndex(face.getNumVertices() - 1); face.addIndex(face.getNumVertices() - 3); face.addIndex(face.getNumVertices() - 4);

line.addIndex(line.getNumVertices() - 1); line.addIndex(line.getNumVertices() - 2);

line.addIndex(line.getNumVertices() - 3); line.addIndex(line.getNumVertices() - 4);

line.addIndex(line.getNumVertices() - 1); line.addIndex(line.getNumVertices() - 3);

next_u += u_span;

}

face.drawFaces();

line.drawWireframe();

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/Insta20230324

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