circle – ページ 78 – プログラミング de 落描き

2020年1月7日2020年1月7日

Mix circle and rectangle. openFrameworks

[ Video ]

[ About ]
Processing勉強会の課題「円と四角」。

Mix circle and rectangle.

[ 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::vec2 make_point(int len, int param);

	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::vec2 make_point(int len, int param);

ofEasyCam cam;

};

#include "ofApp.h"

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

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

	ofBackground(239);
	ofSetLineWidth(2);
	ofEnableDepthTest();
}

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

}

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

	this->cam.begin();

	int len = 300;
	int width = 20;
	for (int z = -len; z <= len; z += width) {

		ofMesh mesh, frame;
		frame.setMode(ofPrimitiveMode::OF_PRIMITIVE_LINES);
		for (int param = 0; param <= 100; param++) {

			int deg = param * 3.6 - 135;
			auto noise_value = ofNoise(cos(deg * DEG_TO_RAD) * 0.5, sin(deg * DEG_TO_RAD) * 0.5, z * 0.005 + ofGetFrameNum() * 0.008);

			vector<glm::vec3> vertices;
			if (noise_value > 0.45) {

				vertices.push_back(glm::vec3(this->make_point(len, param), z + width * 0.5));
				vertices.push_back(glm::vec3(this->make_point(len, param), z - width * 0.5));
			}
			else {

				vertices.push_back(glm::vec3(len * 0.4 * cos(deg * DEG_TO_RAD), len * 0.4 * sin(deg * DEG_TO_RAD), z + width * 0.5));
				vertices.push_back(glm::vec3(len * 0.4 * cos(deg * DEG_TO_RAD), len * 0.4 * sin(deg * DEG_TO_RAD), z - width * 0.5));
			}

			mesh.addVertices(vertices);
			frame.addVertices(vertices);

			int index = mesh.getNumVertices() - 1;
			if (param > 0) {

				mesh.addIndex(index); mesh.addIndex(index - 2); mesh.addIndex(index - 3);
				mesh.addIndex(index); mesh.addIndex(index - 1); mesh.addIndex(index - 3);

				frame.addIndex(index); frame.addIndex(index - 2);
				frame.addIndex(index - 1); frame.addIndex(index - 3);
			}
		}

		ofSetColor(ofMap(z, -len, len, 239, 39));
		mesh.draw();

		frame.addIndex(0); frame.addIndex(1);
		frame.addIndex(frame.getNumVertices() - 1); frame.addIndex(frame.getNumVertices() - 2);

		ofSetColor(239);
		frame.drawWireframe();
	}

	this->cam.end();
}

//--------------------------------------------------------------
glm::vec2 ofApp::make_point(int len, int param) {

	param = param % 100;
	if (param < 25) {

		return glm::vec2(ofMap(param, 0, 25, -len * 0.5, len * 0.5), -len * 0.5);
	}
	else if (param < 50) {

		return glm::vec2(len * 0.5, ofMap(param, 25, 50, -len * 0.5, len * 0.5));
	}
	else if (param < 75) {

		return glm::vec2(ofMap(param, 50, 75, len * 0.5, -len * 0.5), len * 0.5);
	}
	else {

		return glm::vec2(-len * 0.5, ofMap(param, 75, 100, len * 0.5, -len * 0.5));
	}
}

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

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

100

101

#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(60);

ofSetWindowTitle("openframeworks");

ofBackground(239);

ofSetLineWidth(2);

ofEnableDepthTest();

}

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

void ofApp::update() {

}

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

void ofApp::draw() {

this->cam.begin();

int len = 300;

int width = 20;

for (int z = -len; z <= len; z += width) {

ofMesh mesh, frame;

frame.setMode(ofPrimitiveMode::OF_PRIMITIVE_LINES);

for (int param = 0; param <= 100; param++) {

int deg = param * 3.6 - 135;

auto noise_value = ofNoise(cos(deg * DEG_TO_RAD) * 0.5, sin(deg * DEG_TO_RAD) * 0.5, z * 0.005 + ofGetFrameNum() * 0.008);

vector<glm::vec3> vertices;

if (noise_value > 0.45) {

vertices.push_back(glm::vec3(this->make_point(len, param), z + width * 0.5));

vertices.push_back(glm::vec3(this->make_point(len, param), z - width * 0.5));

}

else {

vertices.push_back(glm::vec3(len * 0.4 * cos(deg * DEG_TO_RAD), len * 0.4 * sin(deg * DEG_TO_RAD), z + width * 0.5));

vertices.push_back(glm::vec3(len * 0.4 * cos(deg * DEG_TO_RAD), len * 0.4 * sin(deg * DEG_TO_RAD), z - width * 0.5));

}

mesh.addVertices(vertices);

frame.addVertices(vertices);

int index = mesh.getNumVertices() - 1;

if (param > 0) {

mesh.addIndex(index); mesh.addIndex(index - 2); mesh.addIndex(index - 3);

mesh.addIndex(index); mesh.addIndex(index - 1); mesh.addIndex(index - 3);

frame.addIndex(index); frame.addIndex(index - 2);

frame.addIndex(index - 1); frame.addIndex(index - 3);

}

ofSetColor(ofMap(z, -len, len, 239, 39));

mesh.draw();

frame.addIndex(0); frame.addIndex(1);

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

ofSetColor(239);

frame.drawWireframe();

}

this->cam.end();

}

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

glm::vec2 ofApp::make_point(int len, int param) {

param = param % 100;

if (param < 25) {

return glm::vec2(ofMap(param, 0, 25, -len * 0.5, len * 0.5), -len * 0.5);

}

else if (param < 50) {

return glm::vec2(len * 0.5, ofMap(param, 25, 50, -len * 0.5, len * 0.5));

}

else if (param < 75) {

return glm::vec2(ofMap(param, 50, 75, len * 0.5, -len * 0.5), len * 0.5);

}

else {

return glm::vec2(-len * 0.5, ofMap(param, 75, 100, len * 0.5, -len * 0.5));

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20200107

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2019年11月24日

Wave lines. openFrameworks

[ Video ]

[ About ]
波波線。

Wave 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;
};

#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(239);
	ofSetLineWidth(3);
	ofEnableDepthTest();
}

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

	ofSeedRandom(39);
} 

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

	this->cam.begin();
	ofRotateY(ofGetFrameNum() * 0.5);

	ofMesh face_mesh, frame_mesh;
	frame_mesh.setMode(ofPrimitiveMode::OF_PRIMITIVE_LINES);
	for (auto radius = 50; radius < 300; radius += 20) {

		ofPushMatrix();

		ofRotateZ(ofRandom(360));
		ofRotateY(ofRandom(360));
		ofRotateX(ofRandom(360));

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

			auto index = face_mesh.getVertices().size();
			vector<glm::vec3> vertices;

			auto z = radius * 0.05 * sin((deg + ofGetFrameNum() * 0.5) * 15 * DEG_TO_RAD);
			vertices.push_back(glm::vec3(radius * cos(deg * DEG_TO_RAD), radius * sin(deg * DEG_TO_RAD), z - 10));
			vertices.push_back(glm::vec3(radius * cos(deg * DEG_TO_RAD), radius * sin(deg * DEG_TO_RAD), z + 10));
			z = radius * 0.05 * sin((deg + ofGetFrameNum() * 0.5 + 1) * 15 * DEG_TO_RAD);
			vertices.push_back(glm::vec3(radius * cos((deg + 1) * DEG_TO_RAD), radius * sin((deg + 1) * DEG_TO_RAD), z + 10));
			vertices.push_back(glm::vec3(radius * cos((deg + 1) * DEG_TO_RAD), radius * sin((deg + 1) * DEG_TO_RAD), z - 10));

			face_mesh.addVertices(vertices);
			face_mesh.addIndex(index + 0); face_mesh.addIndex(index + 1); face_mesh.addIndex(index + 2);
			face_mesh.addIndex(index + 0); face_mesh.addIndex(index + 2); face_mesh.addIndex(index + 3);

			frame_mesh.addVertices(vertices);
			frame_mesh.addIndex(index + 0); frame_mesh.addIndex(index + 3);
			frame_mesh.addIndex(index + 1); frame_mesh.addIndex(index + 2);
		}

		ofSetColor(239);
		face_mesh.drawFaces();

		ofSetColor(39);
		frame_mesh.drawWireframe();

		face_mesh.clear();
		frame_mesh.clear();
		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(3);

ofEnableDepthTest();

}

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

void ofApp::update() {

ofSeedRandom(39);

}

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

void ofApp::draw() {

this->cam.begin();

ofRotateY(ofGetFrameNum() * 0.5);

ofMesh face_mesh, frame_mesh;

frame_mesh.setMode(ofPrimitiveMode::OF_PRIMITIVE_LINES);

for (auto radius = 50; radius < 300; radius += 20) {

ofPushMatrix();

ofRotateZ(ofRandom(360));

ofRotateY(ofRandom(360));

ofRotateX(ofRandom(360));

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

auto index = face_mesh.getVertices().size();

vector<glm::vec3> vertices;

auto z = radius * 0.05 * sin((deg + ofGetFrameNum() * 0.5) * 15 * DEG_TO_RAD);

vertices.push_back(glm::vec3(radius * cos(deg * DEG_TO_RAD), radius * sin(deg * DEG_TO_RAD), z - 10));

vertices.push_back(glm::vec3(radius * cos(deg * DEG_TO_RAD), radius * sin(deg * DEG_TO_RAD), z + 10));

z = radius * 0.05 * sin((deg + ofGetFrameNum() * 0.5 + 1) * 15 * DEG_TO_RAD);

vertices.push_back(glm::vec3(radius * cos((deg + 1) * DEG_TO_RAD), radius * sin((deg + 1) * DEG_TO_RAD), z + 10));

vertices.push_back(glm::vec3(radius * cos((deg + 1) * DEG_TO_RAD), radius * sin((deg + 1) * DEG_TO_RAD), z - 10));

face_mesh.addVertices(vertices);

face_mesh.addIndex(index + 0); face_mesh.addIndex(index + 1); face_mesh.addIndex(index + 2);

face_mesh.addIndex(index + 0); face_mesh.addIndex(index + 2); face_mesh.addIndex(index + 3);

frame_mesh.addVertices(vertices);

frame_mesh.addIndex(index + 0); frame_mesh.addIndex(index + 3);

frame_mesh.addIndex(index + 1); frame_mesh.addIndex(index + 2);

}

ofSetColor(239);

face_mesh.drawFaces();

ofSetColor(39);

frame_mesh.drawWireframe();

face_mesh.clear();

frame_mesh.clear();

ofPopMatrix();

}

this->cam.end();

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20191124

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2019年11月14日2019年11月14日

Tangled color lines. openFrameworks

[ Video ]

[ About ]
もつれる色付き帯。時間経過で色が変化。

Tangle color 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 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 mesh;

};

#include "ofApp.h"

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

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

	ofBackground(239);
	ofEnableDepthTest();
}

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

	ofSeedRandom(39);
	this->mesh.clear();

	int hue = ofGetFrameNum() * 0.1;
	for (auto x = -300; x <= 300; x += 600) {

		for (auto y = -300; y <= 300; y += 600) {

			auto location = glm::vec3(x, y, 0);
			hue += 64;

			for (auto i = 0; i < 3; i++) {

				auto radius = 250 + i;
				auto noise_base = glm::vec3(ofRandom(-1000, 1000), ofRandom(-1000, 1000), 0);

				ofColor color;
				color.setHsb(int(hue + i * 85) % 255, 180, 255);

				for (auto deg = 0; deg < 360; deg += 1) {

					int index = this->mesh.getVertices().size();
					vector<glm::vec3> vertices = {
						glm::vec3(radius * cos(deg * DEG_TO_RAD), radius * sin(deg * DEG_TO_RAD), 3),
						glm::vec3(radius * cos((deg + 1) * DEG_TO_RAD), radius * sin((deg + 1) * DEG_TO_RAD), 3),
						glm::vec3(radius * cos((deg + 1) * DEG_TO_RAD), radius * sin((deg + 1) * DEG_TO_RAD), -3),
						glm::vec3(radius * cos(deg * DEG_TO_RAD), radius * sin(deg * DEG_TO_RAD), -3)
					};

					for (auto& vertex : vertices) {

						auto noise_seed_x = noise_base.x + vertex.x * 0.001;
						auto noise_seed_y = noise_base.y + vertex.y * 0.001;
						auto noise_seed_z = noise_base.z + vertex.z * 0.001;

						auto angle_x = ofMap(ofNoise(noise_seed_x, ofGetFrameNum() * 0.0008), 0, 1, -PI * 2, PI * 2);
						auto angle_y = ofMap(ofNoise(noise_seed_y, ofGetFrameNum() * 0.0008), 0, 1, -PI * 2, PI * 2);
						auto angle_z = ofMap(ofNoise(noise_seed_z, ofGetFrameNum() * 0.0008), 0, 1, -PI * 2, PI * 2);

						auto rotation_x = glm::rotate(glm::mat4(), angle_x, glm::vec3(1, 0, 0));
						auto rotation_y = glm::rotate(glm::mat4(), angle_y, glm::vec3(0, 1, 0));
						auto rotation_z = glm::rotate(glm::mat4(), angle_z, glm::vec3(0, 0, 1));

						this->mesh.addVertex(location + glm::vec4(vertex, 0) * rotation_z * rotation_y * rotation_x);
						this->mesh.addColor(color);
					}

					this->mesh.addIndex(index + 0); this->mesh.addIndex(index + 1); this->mesh.addIndex(index + 2);
					this->mesh.addIndex(index + 0); this->mesh.addIndex(index + 3); this->mesh.addIndex(index + 2);
				}
			}
		}
	}
}

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

	this->cam.begin();
	
	this->mesh.draw();

	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);

ofEnableDepthTest();

}

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

void ofApp::update() {

ofSeedRandom(39);

this->mesh.clear();

int hue = ofGetFrameNum() * 0.1;

for (auto x = -300; x <= 300; x += 600) {

for (auto y = -300; y <= 300; y += 600) {

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

hue += 64;

for (auto i = 0; i < 3; i++) {

auto radius = 250 + i;

auto noise_base = glm::vec3(ofRandom(-1000, 1000), ofRandom(-1000, 1000), 0);

ofColor color;

color.setHsb(int(hue + i * 85) % 255, 180, 255);

for (auto deg = 0; deg < 360; deg += 1) {

int index = this->mesh.getVertices().size();

vector<glm::vec3> vertices = {

glm::vec3(radius * cos(deg * DEG_TO_RAD), radius * sin(deg * DEG_TO_RAD), 3),

glm::vec3(radius * cos((deg + 1) * DEG_TO_RAD), radius * sin((deg + 1) * DEG_TO_RAD), 3),

glm::vec3(radius * cos((deg + 1) * DEG_TO_RAD), radius * sin((deg + 1) * DEG_TO_RAD), -3),

glm::vec3(radius * cos(deg * DEG_TO_RAD), radius * sin(deg * DEG_TO_RAD), -3)

};

for (auto& vertex : vertices) {

auto noise_seed_x = noise_base.x + vertex.x * 0.001;

auto noise_seed_y = noise_base.y + vertex.y * 0.001;

auto noise_seed_z = noise_base.z + vertex.z * 0.001;

auto angle_x = ofMap(ofNoise(noise_seed_x, ofGetFrameNum() * 0.0008), 0, 1, -PI * 2, PI * 2);

auto angle_y = ofMap(ofNoise(noise_seed_y, ofGetFrameNum() * 0.0008), 0, 1, -PI * 2, PI * 2);

auto angle_z = ofMap(ofNoise(noise_seed_z, ofGetFrameNum() * 0.0008), 0, 1, -PI * 2, PI * 2);

auto rotation_x = glm::rotate(glm::mat4(), angle_x, glm::vec3(1, 0, 0));

auto rotation_y = glm::rotate(glm::mat4(), angle_y, glm::vec3(0, 1, 0));

auto rotation_z = glm::rotate(glm::mat4(), angle_z, glm::vec3(0, 0, 1));

this->mesh.addVertex(location + glm::vec4(vertex, 0) * rotation_z * rotation_y * rotation_x);

this->mesh.addColor(color);

}

this->mesh.addIndex(index + 0); this->mesh.addIndex(index + 1); this->mesh.addIndex(index + 2);

this->mesh.addIndex(index + 0); this->mesh.addIndex(index + 3); this->mesh.addIndex(index + 2);

}

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

void ofApp::draw() {

this->cam.begin();

this->mesh.draw();

this->cam.end();

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20191114

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