openframeworks – ページ 456 – プログラミング de 落描き

2019年11月13日2019年11月13日

Tangled line. openFrameworks

[ Video ]

[ About ]
もつれる帯。

Tangled line.

[ 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);
	ofSetColor(39);
	ofEnableDepthTest();
}

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

	this->mesh.clear();

	auto radius = 125;
	for (auto x = -300; x <= 300; x += 300) {

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

			auto location = glm::vec3(x, y, 0);
			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 = location.x + vertex.x * 0.003;
					auto noise_seed_y = location.y + vertex.y * 0.003;
					auto noise_seed_z = location.z + vertex.z * 0.003;

					auto angle_x = ofMap(ofNoise(noise_seed_x, ofGetFrameNum() * 0.001), 0, 1, -PI * 2, PI * 2);
					auto angle_y = ofMap(ofNoise(noise_seed_y, ofGetFrameNum() * 0.001), 0, 1, -PI * 2, PI * 2);
					auto angle_z = ofMap(ofNoise(noise_seed_z, ofGetFrameNum() * 0.001), 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.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);

ofSetColor(39);

ofEnableDepthTest();

}

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

void ofApp::update() {

this->mesh.clear();

auto radius = 125;

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

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

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

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 = location.x + vertex.x * 0.003;

auto noise_seed_y = location.y + vertex.y * 0.003;

auto noise_seed_z = location.z + vertex.z * 0.003;

auto angle_x = ofMap(ofNoise(noise_seed_x, ofGetFrameNum() * 0.001), 0, 1, -PI * 2, PI * 2);

auto angle_y = ofMap(ofNoise(noise_seed_y, ofGetFrameNum() * 0.001), 0, 1, -PI * 2, PI * 2);

auto angle_z = ofMap(ofNoise(noise_seed_z, ofGetFrameNum() * 0.001), 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.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/Insta20191113

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2019年11月12日

1/9 sphere. openFrameworks

[ Video ]

[ About ]
9分の1球体。

1/9 sphere.

[ 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;
	ofIcoSpherePrimitive ico_sphere;
	vector<ofMesh> mesh_list;
};

#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;

ofIcoSpherePrimitive ico_sphere;

vector<ofMesh> mesh_list;

};

#include "ofApp.h"

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

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

	ofBackground(239);
	ofEnableDepthTest();

	this->ico_sphere = ofIcoSpherePrimitive(125, 4);
}

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

	this->mesh_list.clear();
	auto triangle_list = this->ico_sphere.getMesh().getUniqueFaces();

	vector<glm::vec3> locations{ glm::vec3(-300, -300, 0), glm::vec3(0, -300, 0), glm::vec3(300, -300, 0),
		glm::vec3(-300, 0, 0), glm::vec3(0, 0, 0), glm::vec3(300, 0, 0), 
		glm::vec3(-300, 300, 0), glm::vec3(0, 300, 0), glm::vec3(300, 300, 0)};
	
	for (auto& triangle : triangle_list) {

		glm::vec3 avg = (triangle.getVertex(0) + triangle.getVertex(1) + triangle.getVertex(2)) / 3;
		int noise_value = ofMap(ofNoise(avg.x * 0.005, avg.y * 0.005, avg.z * 0.005, ofGetFrameNum() * 0.01), 0, 1, 0, locations.size());

		ofMesh mesh;

		mesh.addVertex(locations[noise_value] + triangle.getVertex(0));
		mesh.addVertex(locations[noise_value] + triangle.getVertex(1));
		mesh.addVertex(locations[noise_value] + triangle.getVertex(2));
		
		mesh.addIndex(0);
		mesh.addIndex(1);
		mesh.addIndex(2);

		this->mesh_list.push_back(mesh);
	}
}

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

	this->cam.begin();
	
	for (auto& mesh : this->mesh_list) {

		ofSetColor(239);
		mesh.drawFaces();

		ofSetColor(39);
		mesh.drawWireframe();
	}

	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();

this->ico_sphere = ofIcoSpherePrimitive(125, 4);

}

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

void ofApp::update() {

this->mesh_list.clear();

auto triangle_list = this->ico_sphere.getMesh().getUniqueFaces();

vector<glm::vec3> locations{ glm::vec3(-300, -300, 0), glm::vec3(0, -300, 0), glm::vec3(300, -300, 0),

glm::vec3(-300, 0, 0), glm::vec3(0, 0, 0), glm::vec3(300, 0, 0),

glm::vec3(-300, 300, 0), glm::vec3(0, 300, 0), glm::vec3(300, 300, 0)};

for (auto& triangle : triangle_list) {

glm::vec3 avg = (triangle.getVertex(0) + triangle.getVertex(1) + triangle.getVertex(2)) / 3;

int noise_value = ofMap(ofNoise(avg.x * 0.005, avg.y * 0.005, avg.z * 0.005, ofGetFrameNum() * 0.01), 0, 1, 0, locations.size());

ofMesh mesh;

mesh.addVertex(locations[noise_value] + triangle.getVertex(0));

mesh.addVertex(locations[noise_value] + triangle.getVertex(1));

mesh.addVertex(locations[noise_value] + triangle.getVertex(2));

mesh.addIndex(0);

mesh.addIndex(1);

mesh.addIndex(2);

this->mesh_list.push_back(mesh);

}

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

void ofApp::draw() {

this->cam.begin();

for (auto& mesh : this->mesh_list) {

ofSetColor(239);

mesh.drawFaces();

ofSetColor(39);

mesh.drawWireframe();

}

this->cam.end();

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20191112

[ほしいものリスト]
Amazon

[ Sponsor Link ]

2019年11月11日2019年11月11日

Growing line from sphere. openFrameworks

[ Video ]

[ About ]
球体から生える線。

Growing line from sphere.

[ 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 setLineToMesh(ofMesh& mesh, float start_radius, float end_radius);

	ofEasyCam cam;
	ofColor color;
	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) {};

void setLineToMesh(ofMesh& mesh, float start_radius, float end_radius);

ofEasyCam cam;

ofColor color;

ofMesh mesh;

};

#include "ofApp.h"

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

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

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

	this->color = ofColor(39);
	this->mesh.setMode(ofPrimitiveMode::OF_PRIMITIVE_LINES);
}

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

	ofSeedRandom(39);

	this->mesh.clear();

	for (auto i = 0; i < 150; i++) {
	
		this->setLineToMesh(this->mesh, 30, 250);
	}
}

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

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

	this->mesh.drawWireframe();

	ofSetColor(this->color);
	ofDrawSphere(glm::vec3(), 50);

	this->cam.end();
}

//--------------------------------------------------------------
void ofApp::setLineToMesh(ofMesh& mesh, float start_radius, float end_radius) {

	int start_index = mesh.getVertices().size();

	auto noise_seed_x = ofRandom(1000);
	auto noise_seed_y = ofRandom(1000);
	auto noise_seed_z = ofRandom(1000);
	auto base_deg = ofRandom(360);
	for (auto radius = start_radius; radius < end_radius; radius += 5) {

		auto location = glm::vec3(radius * cos(base_deg * DEG_TO_RAD), radius * sin(base_deg * DEG_TO_RAD), 0);

		auto angle_x = ofMap(ofNoise(noise_seed_x, radius * 0.0003 - ofGetFrameNum() * 0.0003), 0, 1, -PI * 2, PI * 2);
		auto rotation_x = glm::rotate(glm::mat4(), angle_x, glm::vec3(1, 0, 0));

		auto angle_y = ofMap(ofNoise(noise_seed_y, radius * 0.0003 - ofGetFrameNum() * 0.0003), 0, 1, -PI * 2, PI * 2);
		auto rotation_y = glm::rotate(glm::mat4(), angle_y, glm::vec3(0, 1, 0));

		auto angle_z = ofMap(ofNoise(noise_seed_z, radius * 0.0003 - ofGetFrameNum() * 0.0003), 0, 1, -PI * 2, PI * 2);
		auto rotation_z = glm::rotate(glm::mat4(), angle_z, glm::vec3(0, 0, 1));

		mesh.addVertex(glm::vec4(location, 0) * rotation_z * rotation_y * rotation_x);
		
		auto threshold = start_radius + (end_radius - start_radius) * 0.6;
		if (radius > threshold) {
		
			mesh.addColor(ofColor(this->color, ofMap(radius, threshold, end_radius, 255, 0)));
		}
		else {

			mesh.addColor(this->color);
		}
	}

	for (auto i = start_index; i < mesh.getVertices().size() - 1; i++) {

		mesh.addIndex(i);
		mesh.addIndex(i + 1);
	}
}

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

this->color = ofColor(39);

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

}

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

void ofApp::update() {

ofSeedRandom(39);

this->mesh.clear();

for (auto i = 0; i < 150; i++) {

this->setLineToMesh(this->mesh, 30, 250);

}

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

void ofApp::draw() {

this->cam.begin();

ofRotateY(ofGetFrameNum() * 0.5);

this->mesh.drawWireframe();

ofSetColor(this->color);

ofDrawSphere(glm::vec3(), 50);

this->cam.end();

}

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

void ofApp::setLineToMesh(ofMesh& mesh, float start_radius, float end_radius) {

int start_index = mesh.getVertices().size();

auto noise_seed_x = ofRandom(1000);

auto noise_seed_y = ofRandom(1000);

auto noise_seed_z = ofRandom(1000);

auto base_deg = ofRandom(360);

for (auto radius = start_radius; radius < end_radius; radius += 5) {

auto location = glm::vec3(radius * cos(base_deg * DEG_TO_RAD), radius * sin(base_deg * DEG_TO_RAD), 0);

auto angle_x = ofMap(ofNoise(noise_seed_x, radius * 0.0003 - ofGetFrameNum() * 0.0003), 0, 1, -PI * 2, PI * 2);

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

auto angle_y = ofMap(ofNoise(noise_seed_y, radius * 0.0003 - ofGetFrameNum() * 0.0003), 0, 1, -PI * 2, PI * 2);

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

auto angle_z = ofMap(ofNoise(noise_seed_z, radius * 0.0003 - ofGetFrameNum() * 0.0003), 0, 1, -PI * 2, PI * 2);

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

mesh.addVertex(glm::vec4(location, 0) * rotation_z * rotation_y * rotation_x);

auto threshold = start_radius + (end_radius - start_radius) * 0.6;

if (radius > threshold) {

mesh.addColor(ofColor(this->color, ofMap(radius, threshold, end_radius, 255, 0)));

}

else {

mesh.addColor(this->color);

}

for (auto i = start_index; i < mesh.getVertices().size() - 1; i++) {

mesh.addIndex(i);

mesh.addIndex(i + 1);

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20191111

[ほしいものリスト]
Amazon

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