sphere – ページ 19 – プログラミング de 落描き

2022年1月31日2022年1月31日

Drifting noise. Draw by openFrameworks

[ Video ]

[ About ]
2020年3月26日の落書きを別の方法で実装。

Implemented the March 26, 2020 doodle in a different way.

[ 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(255);
	ofEnableDepthTest();

	auto ico_sphere = ofIcoSpherePrimitive(280, 6);
	this->mesh = ico_sphere.getMesh();
	for (int index = 0; index < this->mesh.getNumVertices(); index++) {

		this->mesh.addColor(ofColor(0));
	}
}

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

	auto noise_min = 0.45;
	auto noise_max = 0.8;

	for (int index = 0; index < this->mesh.getNumVertices(); index++) {

		auto noise_value = ofNoise(this->mesh.getVertex(index).x * 0.0035, this->mesh.getVertex(index).y * 0.0035, this->mesh.getVertex(index).z * 0.02 + ofGetFrameNum() * 0.018);
		auto color_value = 255;
		if (noise_value > noise_min) {
		
			if (noise_value < noise_max) {

				color_value = ofMap(noise_value, noise_min, noise_max, 255, 0);
			}
			else {

				color_value = 0;
			}
		}

		this->mesh.setColor(index, ofColor(color_value));
	}
}

//--------------------------------------------------------------
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(255);

ofEnableDepthTest();

auto ico_sphere = ofIcoSpherePrimitive(280, 6);

this->mesh = ico_sphere.getMesh();

for (int index = 0; index < this->mesh.getNumVertices(); index++) {

this->mesh.addColor(ofColor(0));

}

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

void ofApp::update() {

auto noise_min = 0.45;

auto noise_max = 0.8;

for (int index = 0; index < this->mesh.getNumVertices(); index++) {

auto noise_value = ofNoise(this->mesh.getVertex(index).x * 0.0035, this->mesh.getVertex(index).y * 0.0035, this->mesh.getVertex(index).z * 0.02 + ofGetFrameNum() * 0.018);

auto color_value = 255;

if (noise_value > noise_min) {

if (noise_value < noise_max) {

color_value = ofMap(noise_value, noise_min, noise_max, 255, 0);

}

else {

color_value = 0;

}

this->mesh.setColor(index, ofColor(color_value));

}

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

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/Insta20220131

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2022年1月20日2022年1月20日

Dot or Line. Draw by openFrameworks

[ Video ]

[ About ]
ドットとフレームを見比べる。

Dot and 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 line, draw_line;
};

#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 line, draw_line;

};

#include "ofApp.h"	

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

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

	ofBackground(0);
	ofSetColor(255);
	ofEnableDepthTest();
	ofSetLineWidth(1.5);

	this->line.setMode(ofPrimitiveMode::OF_PRIMITIVE_LINES);
	this->draw_line.setMode(ofPrimitiveMode::OF_PRIMITIVE_LINES);

	auto ico_sphere = ofIcoSpherePrimitive(150, 3);
	auto triangles = ico_sphere.getMesh().getUniqueFaces();
	for (auto& triangle : triangles) {

		auto avg = glm::vec3(triangle.getVertex(0) + triangle.getVertex(1) + triangle.getVertex(2)) / 3;
		this->line.addVertex(avg);
	}

	for (int i = 0; i < this->line.getNumVertices(); i++) {

		for (int k = i + 1; k < this->line.getNumVertices(); k++) {

			auto& location = this->line.getVertex(i);
			auto& other = this->line.getVertex(k);

			if (glm::distance(location, other) < 15) {

				this->line.addIndex(i);
				this->line.addIndex(k);
			}
		}
	}
}

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

	this->draw_line = this->line;

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

		auto noise_value = ofNoise(glm::vec4(vertex * 0.0015, ofGetFrameNum() * 0.01));

		if (noise_value > 0.5 && noise_value < 0.55) {

			vertex = glm::normalize(vertex) * ofMap(noise_value, 0.5, 0.55, 200, 300);
		}
		else if (noise_value > 0.55) {

			vertex = glm::normalize(vertex) * 300;
		}
		else {

			vertex = glm::normalize(vertex) * 200;
		}
	}
}

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

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

	ofTranslate(-320, 0, 0);

	this->draw_line.drawWireframe();

	ofTranslate(640, 0, 0);

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

		ofDrawSphere(vertex, 3.5);
	}

	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);

ofSetColor(255);

ofEnableDepthTest();

ofSetLineWidth(1.5);

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

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

auto ico_sphere = ofIcoSpherePrimitive(150, 3);

auto triangles = ico_sphere.getMesh().getUniqueFaces();

for (auto& triangle : triangles) {

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

this->line.addVertex(avg);

}

for (int i = 0; i < this->line.getNumVertices(); i++) {

for (int k = i + 1; k < this->line.getNumVertices(); k++) {

auto& location = this->line.getVertex(i);

auto& other = this->line.getVertex(k);

if (glm::distance(location, other) < 15) {

this->line.addIndex(i);

this->line.addIndex(k);

}

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

void ofApp::update() {

this->draw_line = this->line;

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

auto noise_value = ofNoise(glm::vec4(vertex * 0.0015, ofGetFrameNum() * 0.01));

if (noise_value > 0.5 && noise_value < 0.55) {

vertex = glm::normalize(vertex) * ofMap(noise_value, 0.5, 0.55, 200, 300);

}

else if (noise_value > 0.55) {

vertex = glm::normalize(vertex) * 300;

}

else {

vertex = glm::normalize(vertex) * 200;

}

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

void ofApp::draw() {

this->cam.begin();

ofRotateY(ofGetFrameNum());

ofTranslate(-320, 0, 0);

this->draw_line.drawWireframe();

ofTranslate(640, 0, 0);

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

ofDrawSphere(vertex, 3.5);

}

this->cam.end();

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20220120

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2022年1月13日2022年1月13日

Peeking Sphere. Draw by openFrameworks

[ Video ]

[ About ]
同じ形を重ねてみる。

Try to overlap the same shape.

[ 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 face, line;
};

#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 face, line;

};

#include "ofApp.h"

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

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

	ofBackground(255);
	ofEnableDepthTest();
	ofSetLineWidth(1.5);

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

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

	this->face.clear();
	this->line.clear();

	float phi_deg_step = 5;
	float theta_deg_step = 5;
	float noise_radius = 300;

	for (float radius = 200; radius <= 250; radius += 5) {

		for (float phi_deg = 0; phi_deg < 360; phi_deg += phi_deg_step) {

			for (float theta_deg = 0; theta_deg <= 180; theta_deg += theta_deg_step) {

				auto noise_value = ofNoise(
					noise_radius * cos(phi_deg * DEG_TO_RAD) * 0.01,
					noise_radius * sin(phi_deg * DEG_TO_RAD) * 0.01,
					noise_radius * cos(theta_deg * DEG_TO_RAD) * 0.005 + ofGetFrameNum() * 0.05);

				if (noise_value < 0.55) { continue; }

				auto noise_value_1 = ofNoise(
					noise_radius * cos(phi_deg * DEG_TO_RAD) * 0.01,
					noise_radius * sin(phi_deg * DEG_TO_RAD) * 0.01,
					noise_radius * cos((theta_deg - theta_deg_step) * DEG_TO_RAD) * 0.005 + ofGetFrameNum() * 0.05);
				auto noise_value_2 = ofNoise(
					noise_radius * cos((phi_deg + phi_deg_step) * DEG_TO_RAD) * 0.01,
					noise_radius * sin((phi_deg + phi_deg_step) * DEG_TO_RAD) * 0.01,
					noise_radius * cos(theta_deg * DEG_TO_RAD) * 0.005 + ofGetFrameNum() * 0.05);
				auto noise_value_3 = ofNoise(
					noise_radius * cos((phi_deg - phi_deg_step) * DEG_TO_RAD) * 0.01,
					noise_radius * sin((phi_deg - phi_deg_step) * DEG_TO_RAD) * 0.01,
					noise_radius * cos(theta_deg * DEG_TO_RAD) * 0.005 + ofGetFrameNum() * 0.05);
				auto noise_value_4 = ofNoise(
					noise_radius * cos(phi_deg * DEG_TO_RAD) * 0.01,
					noise_radius * sin(phi_deg * DEG_TO_RAD) * 0.01,
					noise_radius * cos((theta_deg + theta_deg_step) * DEG_TO_RAD) * 0.005 + ofGetFrameNum() * 0.05);

				auto index = this->face.getNumVertices();
				vector<glm::vec3> vertices;

				vertices.push_back(glm::vec3(
					radius * sin((theta_deg - theta_deg_step * 0.5) * DEG_TO_RAD) * cos((phi_deg + phi_deg_step * 0.5) * DEG_TO_RAD),
					radius * sin((theta_deg - theta_deg_step * 0.5) * DEG_TO_RAD) * sin((phi_deg + phi_deg_step * 0.5) * DEG_TO_RAD),
					radius * cos((theta_deg - theta_deg_step * 0.5) * DEG_TO_RAD)));
				vertices.push_back(glm::vec3(
					radius * sin((theta_deg - theta_deg_step * 0.5) * DEG_TO_RAD) * cos((phi_deg - phi_deg_step * 0.5) * DEG_TO_RAD),
					radius * sin((theta_deg - theta_deg_step * 0.5) * DEG_TO_RAD) * sin((phi_deg - phi_deg_step * 0.5) * DEG_TO_RAD),
					radius * cos((theta_deg - theta_deg_step * 0.5) * DEG_TO_RAD)));
				vertices.push_back(glm::vec3(
					radius * sin((theta_deg + theta_deg_step * 0.5) * DEG_TO_RAD) * cos((phi_deg + phi_deg_step * 0.5) * DEG_TO_RAD),
					radius * sin((theta_deg + theta_deg_step * 0.5) * DEG_TO_RAD) * sin((phi_deg + phi_deg_step * 0.5) * DEG_TO_RAD),
					radius * cos((theta_deg + theta_deg_step * 0.5) * DEG_TO_RAD)));
				vertices.push_back(glm::vec3(
					radius * sin((theta_deg + theta_deg_step * 0.5) * DEG_TO_RAD) * cos((phi_deg - phi_deg_step * 0.5) * DEG_TO_RAD),
					radius * sin((theta_deg + theta_deg_step * 0.5) * DEG_TO_RAD) * sin((phi_deg - phi_deg_step * 0.5) * DEG_TO_RAD),
					radius * cos((theta_deg + theta_deg_step * 0.5) * DEG_TO_RAD)));

				this->face.addVertices(vertices);

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

				if (noise_value_1 < 0.55) {

					this->line.addVertex(vertices[0]); this->line.addVertex(vertices[1]);
					this->line.addIndex(this->line.getNumVertices() - 1); this->line.addIndex(this->line.getNumVertices() - 2);
				}

				if (noise_value_2 < 0.55) {

					this->line.addVertex(vertices[0]); this->line.addVertex(vertices[2]);
					this->line.addIndex(this->line.getNumVertices() - 1); this->line.addIndex(this->line.getNumVertices() - 2);
				}

				if (noise_value_3 < 0.55) {

					this->line.addVertex(vertices[1]); this->line.addVertex(vertices[3]);
					this->line.addIndex(this->line.getNumVertices() - 1); this->line.addIndex(this->line.getNumVertices() - 2);
				}

				if (noise_value_4 < 0.55) {

					this->line.addVertex(vertices[2]); this->line.addVertex(vertices[3]);
					this->line.addIndex(this->line.getNumVertices() - 1); this->line.addIndex(this->line.getNumVertices() - 2);
				}
			}
		}
	}
}

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

	this->cam.begin();
	ofRotateX(270);
	ofRotateZ(ofGetFrameNum());

	ofSetColor(0);
	this->face.draw();

	ofSetColor(255);
	this->line.draw();

	this->cam.end();
}

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

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

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#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(30);

ofSetWindowTitle("openFrameworks");

ofBackground(255);

ofEnableDepthTest();

ofSetLineWidth(1.5);

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

}

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

void ofApp::update() {

this->face.clear();

this->line.clear();

float phi_deg_step = 5;

float theta_deg_step = 5;

float noise_radius = 300;

for (float radius = 200; radius <= 250; radius += 5) {

for (float phi_deg = 0; phi_deg < 360; phi_deg += phi_deg_step) {

for (float theta_deg = 0; theta_deg <= 180; theta_deg += theta_deg_step) {

auto noise_value = ofNoise(

noise_radius * cos(phi_deg * DEG_TO_RAD) * 0.01,

noise_radius * sin(phi_deg * DEG_TO_RAD) * 0.01,

noise_radius * cos(theta_deg * DEG_TO_RAD) * 0.005 + ofGetFrameNum() * 0.05);

if (noise_value < 0.55) { continue; }

auto noise_value_1 = ofNoise(

noise_radius * cos(phi_deg * DEG_TO_RAD) * 0.01,

noise_radius * sin(phi_deg * DEG_TO_RAD) * 0.01,

noise_radius * cos((theta_deg - theta_deg_step) * DEG_TO_RAD) * 0.005 + ofGetFrameNum() * 0.05);

auto noise_value_2 = ofNoise(

noise_radius * cos((phi_deg + phi_deg_step) * DEG_TO_RAD) * 0.01,

noise_radius * sin((phi_deg + phi_deg_step) * DEG_TO_RAD) * 0.01,

noise_radius * cos(theta_deg * DEG_TO_RAD) * 0.005 + ofGetFrameNum() * 0.05);

auto noise_value_3 = ofNoise(

noise_radius * cos((phi_deg - phi_deg_step) * DEG_TO_RAD) * 0.01,

noise_radius * sin((phi_deg - phi_deg_step) * DEG_TO_RAD) * 0.01,

noise_radius * cos(theta_deg * DEG_TO_RAD) * 0.005 + ofGetFrameNum() * 0.05);

auto noise_value_4 = ofNoise(

noise_radius * cos(phi_deg * DEG_TO_RAD) * 0.01,

noise_radius * sin(phi_deg * DEG_TO_RAD) * 0.01,

noise_radius * cos((theta_deg + theta_deg_step) * DEG_TO_RAD) * 0.005 + ofGetFrameNum() * 0.05);

auto index = this->face.getNumVertices();

vector<glm::vec3> vertices;

vertices.push_back(glm::vec3(

radius * sin((theta_deg - theta_deg_step * 0.5) * DEG_TO_RAD) * cos((phi_deg + phi_deg_step * 0.5) * DEG_TO_RAD),

radius * sin((theta_deg - theta_deg_step * 0.5) * DEG_TO_RAD) * sin((phi_deg + phi_deg_step * 0.5) * DEG_TO_RAD),

radius * cos((theta_deg - theta_deg_step * 0.5) * DEG_TO_RAD)));

vertices.push_back(glm::vec3(

radius * sin((theta_deg - theta_deg_step * 0.5) * DEG_TO_RAD) * cos((phi_deg - phi_deg_step * 0.5) * DEG_TO_RAD),

radius * sin((theta_deg - theta_deg_step * 0.5) * DEG_TO_RAD) * sin((phi_deg - phi_deg_step * 0.5) * DEG_TO_RAD),

radius * cos((theta_deg - theta_deg_step * 0.5) * DEG_TO_RAD)));

vertices.push_back(glm::vec3(

radius * sin((theta_deg + theta_deg_step * 0.5) * DEG_TO_RAD) * cos((phi_deg + phi_deg_step * 0.5) * DEG_TO_RAD),

radius * sin((theta_deg + theta_deg_step * 0.5) * DEG_TO_RAD) * sin((phi_deg + phi_deg_step * 0.5) * DEG_TO_RAD),

radius * cos((theta_deg + theta_deg_step * 0.5) * DEG_TO_RAD)));

vertices.push_back(glm::vec3(

radius * sin((theta_deg + theta_deg_step * 0.5) * DEG_TO_RAD) * cos((phi_deg - phi_deg_step * 0.5) * DEG_TO_RAD),

radius * sin((theta_deg + theta_deg_step * 0.5) * DEG_TO_RAD) * sin((phi_deg - phi_deg_step * 0.5) * DEG_TO_RAD),

radius * cos((theta_deg + theta_deg_step * 0.5) * DEG_TO_RAD)));

this->face.addVertices(vertices);

this->face.addIndex(index + 0); this->face.addIndex(index + 1); this->face.addIndex(index + 3);

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

if (noise_value_1 < 0.55) {

this->line.addVertex(vertices[0]); this->line.addVertex(vertices[1]);

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

}

if (noise_value_2 < 0.55) {

this->line.addVertex(vertices[0]); this->line.addVertex(vertices[2]);

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

}

if (noise_value_3 < 0.55) {

this->line.addVertex(vertices[1]); this->line.addVertex(vertices[3]);

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

}

if (noise_value_4 < 0.55) {

this->line.addVertex(vertices[2]); this->line.addVertex(vertices[3]);

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

}

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

void ofApp::draw() {

this->cam.begin();

ofRotateX(270);

ofRotateZ(ofGetFrameNum());

ofSetColor(0);

this->face.draw();

ofSetColor(255);

this->line.draw();

this->cam.end();

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20220113

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