openFrameworks – ページ 364 – プログラミング de 落描き

2022年2月26日

Rotating rect. Draw by openFrameworks

[ Video ]

[ About ]
Rotating Rect.

[ 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(255);
	ofSetLineWidth(3);
	ofEnableDepthTest();
}

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

	ofSeedRandom(39);
}

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

	this->cam.begin();

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

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

	int r = 50;
	float noise_seed = ofRandom(1000);
	for (int v = 0; v <= 360; v += v_span) {

		int u_start = ofMap(ofNoise(noise_seed, cos(v * DEG_TO_RAD) * 0.25, sin(v * DEG_TO_RAD) * 0.25, ofGetFrameNum() * 0.01), 0, 1, -360, 360);
		int next_u = ofMap(ofNoise(noise_seed, cos((v + v_span * 0.9) * DEG_TO_RAD) * 0.25, sin((v + v_span * 0.9) * DEG_TO_RAD) * 0.25, ofGetFrameNum() * 0.01), 0, 1, -360, 360);
		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(255);
			ofColor line_color = ofColor(0);

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

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

			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

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103

#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(30);

ofSetWindowTitle("openframeworks");

ofBackground(255);

ofSetLineWidth(3);

ofEnableDepthTest();

}

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

void ofApp::update() {

ofSeedRandom(39);

}

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

void ofApp::draw() {

this->cam.begin();

int v_span = 8;

int u_span = 90;

int R = 200;

ofMesh face, line;

line.setMode(ofPrimitiveMode::OF_PRIMITIVE_LINES);

int r = 50;

float noise_seed = ofRandom(1000);

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

int u_start = ofMap(ofNoise(noise_seed, cos(v * DEG_TO_RAD) * 0.25, sin(v * DEG_TO_RAD) * 0.25, ofGetFrameNum() * 0.01), 0, 1, -360, 360);

int next_u = ofMap(ofNoise(noise_seed, cos((v + v_span * 0.9) * DEG_TO_RAD) * 0.25, sin((v + v_span * 0.9) * DEG_TO_RAD) * 0.25, ofGetFrameNum() * 0.01), 0, 1, -360, 360);

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(255);

ofColor line_color = ofColor(0);

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() - 4);

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

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

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

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/Insta20220226

2022年2月25日

Vivid Red & Tornado. Draw by openFrameworks

[ Video ]

[ About ]
配色デザインインスピレーションブックⅢという本を購入して参照しました。

[ 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) {};

	void paletteShuffle(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) {};

void paletteShuffle(vector<ofColor>& color_palette);

};

#include "ofApp.h"

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

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

	ofBackground(255);
	ofSetLineWidth(3);
	ofSetCircleResolution(60);
}

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

	ofSeedRandom(39);
}

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

	// 配色デザイン ビビッドレッド P038
	vector<ofColor> color_palette;
	color_palette.push_back(ofColor(109, 23, 129));
	color_palette.push_back(ofColor(75, 83, 158));
	color_palette.push_back(ofColor(132, 93, 159));
	color_palette.push_back(ofColor(66, 35, 128));
	color_palette.push_back(ofColor(200, 64, 114));
	color_palette.push_back(ofColor(0, 160, 158));
	color_palette.push_back(ofColor(215, 130, 63));
	color_palette.push_back(ofColor(0, 0, 0));

	ofTranslate(ofGetWindowSize() * 0.5);

	for (int x = -230; x <= 230; x += 230) {

		for (int y = -230; y <= 230; y += 230) {

			this->paletteShuffle(color_palette);

			ofFill();
			ofSetColor(color_palette[0]);
			ofDrawCircle(x, y, 100);

			ofNoFill();
			ofSetColor(color_palette[1]);
			ofDrawCircle(x, y, 100);

			auto noise_seed = ofRandom(1000);

			for (int radius = 30; radius < 85; radius += 5) {

				int deg_start = ofNoise(noise_seed, ofGetFrameNum() * 0.02 + radius * 0.0085) * 720;
				for (int i = 0; i < 2; i++) {

					ofSetColor(color_palette[2 + i]);

					ofBeginShape();
					for (int deg = deg_start + i * 180; deg < deg_start + i * 180 + 90; deg += 1) {

						ofVertex(x + radius * cos(deg * DEG_TO_RAD), y + radius * sin(deg * DEG_TO_RAD));
					}
					ofEndShape();
				}
			}

		}
	}
}

//--------------------------------------------------------------
void ofApp::paletteShuffle(vector<ofColor>& color_palette) {

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

		int k = ofRandom(i, color_palette.size());
		ofColor tmp = color_palette[i];
		color_palette[i] = color_palette[k];
		color_palette[k] = tmp;
	}
}

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

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

#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(30);

ofSetWindowTitle("openFrameworks");

ofBackground(255);

ofSetLineWidth(3);

ofSetCircleResolution(60);

}

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

void ofApp::update() {

ofSeedRandom(39);

}

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

void ofApp::draw() {

// 配色デザインビビッドレッド P038

vector<ofColor> color_palette;

color_palette.push_back(ofColor(109, 23, 129));

color_palette.push_back(ofColor(75, 83, 158));

color_palette.push_back(ofColor(132, 93, 159));

color_palette.push_back(ofColor(66, 35, 128));

color_palette.push_back(ofColor(200, 64, 114));

color_palette.push_back(ofColor(0, 160, 158));

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

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

ofTranslate(ofGetWindowSize() * 0.5);

for (int x = -230; x <= 230; x += 230) {

for (int y = -230; y <= 230; y += 230) {

this->paletteShuffle(color_palette);

ofFill();

ofSetColor(color_palette[0]);

ofDrawCircle(x, y, 100);

ofNoFill();

ofSetColor(color_palette[1]);

ofDrawCircle(x, y, 100);

auto noise_seed = ofRandom(1000);

for (int radius = 30; radius < 85; radius += 5) {

int deg_start = ofNoise(noise_seed, ofGetFrameNum() * 0.02 + radius * 0.0085) * 720;

for (int i = 0; i < 2; i++) {

ofSetColor(color_palette[2 + i]);

ofBeginShape();

for (int deg = deg_start + i * 180; deg < deg_start + i * 180 + 90; deg += 1) {

ofVertex(x + radius * cos(deg * DEG_TO_RAD), y + radius * sin(deg * DEG_TO_RAD));

}

ofEndShape();

}

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

void ofApp::paletteShuffle(vector<ofColor>& color_palette) {

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

int k = ofRandom(i, color_palette.size());

ofColor tmp = color_palette[i];

color_palette[i] = color_palette[k];

color_palette[k] = tmp;

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20220225

2022年2月24日2022年2月24日

Soft Green & Node Garden. Draw by openFrameworks

[ video ]

[ About ]
配色デザインインスピレーションブックⅢという本を購入して参照しました。

[ 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) {};

	ofMesh mesh;
	vector<glm::vec3> circle_list;
	vector<ofColor> color_list;

	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 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) {};

ofMesh mesh;

vector<glm::vec3> circle_list;

vector<ofColor> color_list;

vector<ofColor> color_palette;

};

#include "ofApp.h"	

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

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

	ofBackground(255);
	ofSetLineWidth(3);
	ofSetCircleResolution(30);

	// 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));

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


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

	ofSeedRandom(39);

	this->mesh.clear();
	this->circle_list.clear();

	vector<glm::vec2> location_list;
	for (int i = 0; i < 120; i++) {

		auto location = glm::vec2(ofMap(ofNoise(ofRandom(1000), ofGetFrameNum() * 0.0035), 0, 1, -300, 300), ofMap(ofNoise(ofRandom(1000), ofGetFrameNum() * 0.0035), 0, 1, -300, 300));
		location_list.push_back(location);
	}

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

		this->circle_list.push_back(glm::vec3(location_list[i], 0));
		this->color_list.push_back(this->color_palette[ofRandom(this->color_palette.size())]);
		auto near_count = 0;
		for (int k = 0; k < location_list.size(); k++) {

			if (i == k) { continue; }

			auto distance = glm::distance(location_list[i], location_list[k]);
			if (distance < 50) {

				this->mesh.addVertex(glm::vec3(location_list[i], 0));
				this->mesh.addVertex(glm::vec3(location_list[k], 0));

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

				near_count++;
			}
		}

		this->circle_list.back().z = pow(1.5, near_count);
	}
}

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

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

	ofDrawRectangle(-320, -320, 640, 640);

	ofSetColor(0);
	ofSetLineWidth(1.5);
	this->mesh.drawWireframe();
	
	ofNoFill();
	ofSetLineWidth(3);
	for (auto& circle : this->circle_list) {

		ofDrawCircle(glm::vec2(circle.x, circle.y), circle.z);
	}

	ofFill();
	for (auto& circle : this->circle_list) {

		ofSetColor(this->color_palette[ofRandom(this->color_palette.size())]);
		ofDrawCircle(glm::vec2(circle.x, circle.y), circle.z);
	}
}

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

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

#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(30);

ofSetWindowTitle("openFrameworks");

ofBackground(255);

ofSetLineWidth(3);

ofSetCircleResolution(30);

// 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));

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

}

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

void ofApp::update() {

ofSeedRandom(39);

this->mesh.clear();

this->circle_list.clear();

vector<glm::vec2> location_list;

for (int i = 0; i < 120; i++) {

auto location = glm::vec2(ofMap(ofNoise(ofRandom(1000), ofGetFrameNum() * 0.0035), 0, 1, -300, 300), ofMap(ofNoise(ofRandom(1000), ofGetFrameNum() * 0.0035), 0, 1, -300, 300));

location_list.push_back(location);

}

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

this->circle_list.push_back(glm::vec3(location_list[i], 0));

this->color_list.push_back(this->color_palette[ofRandom(this->color_palette.size())]);

auto near_count = 0;

for (int k = 0; k < location_list.size(); k++) {

if (i == k) { continue; }

auto distance = glm::distance(location_list[i], location_list[k]);

if (distance < 50) {

this->mesh.addVertex(glm::vec3(location_list[i], 0));

this->mesh.addVertex(glm::vec3(location_list[k], 0));

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

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

near_count++;

}

this->circle_list.back().z = pow(1.5, near_count);

}

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

void ofApp::draw() {

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

ofDrawRectangle(-320, -320, 640, 640);

ofSetColor(0);

ofSetLineWidth(1.5);

this->mesh.drawWireframe();

ofNoFill();

ofSetLineWidth(3);

for (auto& circle : this->circle_list) {

ofDrawCircle(glm::vec2(circle.x, circle.y), circle.z);

}

ofFill();

for (auto& circle : this->circle_list) {

ofSetColor(this->color_palette[ofRandom(this->color_palette.size())]);

ofDrawCircle(glm::vec2(circle.x, circle.y), circle.z);

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20220224

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