sphere – ページ 3 – プログラミング de 落描き

2023年7月6日

Noisy Sphere. Draw by openFrameworks

[ Video ]

[ About ]
ノイズ球体。

[ 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(30);
	ofSetWindowTitle("openFrameworks");

	ofBackground(39);
	ofEnableDepthTest();

	auto ico_sphere = ofIcoSpherePrimitive(200, 6);
	this->mesh = ico_sphere.getMesh();
}

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

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

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

		auto noise_value = ofMap(ofNoise(glm::vec4(this->mesh.getVertex(i) * 0.005, ofGetFrameNum() * 0.015)), 0, 1, 0, 10);
		int int_noise_value = (int)noise_value;
		
		noise_value = noise_value - int_noise_value;
		auto brightness = ofMap(abs(noise_value - 0.5), 0, 0.5, 255, 0);
		auto hue = ofMap(int_noise_value, 0, 10, 0, 255);
		color.setHsb(hue, 100, brightness);
		this->mesh.addColor(color);
	}
}

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

	this->cam.begin();
	ofRotateY(ofGetFrameNum() * 3);

	this->mesh.drawFaces();

	this->cam.end();
}

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

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

#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(30);

ofSetWindowTitle("openFrameworks");

ofBackground(39);

ofEnableDepthTest();

auto ico_sphere = ofIcoSpherePrimitive(200, 6);

this->mesh = ico_sphere.getMesh();

}

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

void ofApp::update() {

this->mesh.clearColors();

ofSeedRandom(39);

ofColor color;

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

auto noise_value = ofMap(ofNoise(glm::vec4(this->mesh.getVertex(i) * 0.005, ofGetFrameNum() * 0.015)), 0, 1, 0, 10);

int int_noise_value = (int)noise_value;

noise_value = noise_value - int_noise_value;

auto brightness = ofMap(abs(noise_value - 0.5), 0, 0.5, 255, 0);

auto hue = ofMap(int_noise_value, 0, 10, 0, 255);

color.setHsb(hue, 100, brightness);

this->mesh.addColor(color);

}

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

void ofApp::draw() {

this->cam.begin();

ofRotateY(ofGetFrameNum() * 3);

this->mesh.drawFaces();

this->cam.end();

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20230706

2023年6月29日

Sphere’s rings. Draw by openFrameworks

[ Video ]

[ About ]
球体の輪。

[ 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) {};

	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 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) {};

ofEasyCam cam;

};

#include "ofApp.h"

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

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

	ofBackground(39);
	ofSetCircleResolution(120);
	ofEnableDepthTest();
}

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

	ofSeedRandom(39);
}

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

	this->cam.begin();
	ofRotateZ(90);

	ofNoFill();
	ofEnableBlendMode(ofBlendMode::OF_BLENDMODE_ADD);

	ofColor color;
	auto noise_seed = glm::vec3(ofRandom(1000), ofRandom(1000), ofRandom(1000));
	
	for (int i = 0; i < 50; i++) {

		ofPushMatrix();

		ofRotateY(ofMap(ofNoise(noise_seed.y, i * 0.005 + ofGetFrameNum() * 0.008), 0, 1, -12, 12));
		ofRotateX(ofMap(ofNoise(noise_seed.x, i * 0.005 + ofGetFrameNum() * 0.008), 0, 1, -12, 12));

		color.setHsb(ofRandom(255), 200, 255);
		ofSetColor(color, 255);
		ofSetLineWidth(ofRandom(1, 3));

		ofDrawCircle(glm::vec2(), ofRandom(220, 280));

		ofPopMatrix();
	}

	ofDisableBlendMode();

	ofSetColor(0);
	ofFill();
	ofDrawSphere(glm::vec3(), 180);
}

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

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

#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(30);

ofSetWindowTitle("openFrameworks");

ofBackground(39);

ofSetCircleResolution(120);

ofEnableDepthTest();

}

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

void ofApp::update() {

ofSeedRandom(39);

}

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

void ofApp::draw() {

this->cam.begin();

ofRotateZ(90);

ofNoFill();

ofEnableBlendMode(ofBlendMode::OF_BLENDMODE_ADD);

ofColor color;

auto noise_seed = glm::vec3(ofRandom(1000), ofRandom(1000), ofRandom(1000));

for (int i = 0; i < 50; i++) {

ofPushMatrix();

ofRotateY(ofMap(ofNoise(noise_seed.y, i * 0.005 + ofGetFrameNum() * 0.008), 0, 1, -12, 12));

ofRotateX(ofMap(ofNoise(noise_seed.x, i * 0.005 + ofGetFrameNum() * 0.008), 0, 1, -12, 12));

color.setHsb(ofRandom(255), 200, 255);

ofSetColor(color, 255);

ofSetLineWidth(ofRandom(1, 3));

ofDrawCircle(glm::vec2(), ofRandom(220, 280));

ofPopMatrix();

}

ofDisableBlendMode();

ofSetColor(0);

ofFill();

ofDrawSphere(glm::vec3(), 180);

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20230629

2023年6月26日

Gnaw at a sphere. Draw by openFrameworks

[ Video ]

[ About ]
球体をかじる。

[ 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, frame;

	vector<ofMeshFace> triangle_list;
	vector<glm::vec3> random_walk;
};

#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, frame;

vector<ofMeshFace> triangle_list;

vector<glm::vec3> random_walk;

};

#include "ofApp.h"

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

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

	ofBackground(39);
	ofSetColor(255);
	ofNoFill();
	ofEnableDepthTest();

	auto ico_sphere = ofIcoSpherePrimitive(300, 4);
	this->triangle_list.insert(this->triangle_list.end(), ico_sphere.getMesh().getUniqueFaces().begin(), ico_sphere.getMesh().getUniqueFaces().end());

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

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

	ofSeedRandom(39);

	this->mesh.clear();
	this->frame.clear();
	this->random_walk.clear();
	
	auto radius = 250;
	
	glm::vec3 noise_seed = glm::vec3(ofRandom(1000), ofRandom(1000), ofRandom(1000));
	for (int i = 0; i < 150; i++) {

		auto location = glm::vec3(
			ofMap(ofNoise(noise_seed.x, ofGetFrameNum() * 0.06 + i * 0.03), 0, 1, -radius * 1.2, radius * 1.2),
			ofMap(ofNoise(noise_seed.y, ofGetFrameNum() * 0.06 + i * 0.03), 0, 1, -radius * 1.2, radius * 1.2),
			ofMap(ofNoise(noise_seed.z, ofGetFrameNum() * 0.06 + i * 0.03), 0, 1, -radius * 1.2, radius * 1.2));
		this->random_walk.push_back(location);
	}

	for (int k = 0; k < this->triangle_list.size(); k++) {

		glm::vec3 avg = (this->triangle_list[k].getVertex(0) + this->triangle_list[k].getVertex(1) + this->triangle_list[k].getVertex(2)) / 3;
		
		bool flag = true;
		for (auto& location : this->random_walk) {

			if (glm::distance(avg, location) < 80) {

				if (glm::length(location) < radius + 20 && glm::length(location) > radius - 20) {

					flag = false;
					continue;
				}
			}
		}

		if (flag == false) { continue; }

		vector<glm::vec3> vertices;
		vertices.push_back(glm::normalize(this->triangle_list[k].getVertex(0)) * radius);
		vertices.push_back(glm::normalize(this->triangle_list[k].getVertex(1)) * radius);
		vertices.push_back(glm::normalize(this->triangle_list[k].getVertex(2)) * radius);

		this->mesh.addVertices(vertices);
		this->frame.addVertices(vertices);

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

			auto alpha = radius < 250 ? 255 : ofMap(radius, 250, 320, 255, 0);

			this->mesh.addColor(ofColor(0, alpha));
			this->frame.addColor(ofColor(255, 255, 255, alpha));
		}

		this->mesh.addTriangle(this->mesh.getNumVertices() - 1, this->mesh.getNumVertices() - 2, this->mesh.getNumVertices() - 3);

		this->frame.addIndex(this->frame.getNumVertices() - 1); this->frame.addIndex(this->frame.getNumVertices() - 2);
		this->frame.addIndex(this->frame.getNumVertices() - 2); this->frame.addIndex(this->frame.getNumVertices() - 3);
		this->frame.addIndex(this->frame.getNumVertices() - 3); this->frame.addIndex(this->frame.getNumVertices() - 1);
	}

	
}

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

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

	ofSetLineWidth(0.5);
	this->mesh.draw();
	this->frame.drawWireframe();

	ofSetColor(255);
	ofSetLineWidth(3);
	ofBeginShape();
	ofVertices(this->random_walk);
	ofEndShape();

	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(39);

ofSetColor(255);

ofNoFill();

ofEnableDepthTest();

auto ico_sphere = ofIcoSpherePrimitive(300, 4);

this->triangle_list.insert(this->triangle_list.end(), ico_sphere.getMesh().getUniqueFaces().begin(), ico_sphere.getMesh().getUniqueFaces().end());

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

}

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

void ofApp::update() {

ofSeedRandom(39);

this->mesh.clear();

this->frame.clear();

this->random_walk.clear();

auto radius = 250;

glm::vec3 noise_seed = glm::vec3(ofRandom(1000), ofRandom(1000), ofRandom(1000));

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

auto location = glm::vec3(

ofMap(ofNoise(noise_seed.x, ofGetFrameNum() * 0.06 + i * 0.03), 0, 1, -radius * 1.2, radius * 1.2),

ofMap(ofNoise(noise_seed.y, ofGetFrameNum() * 0.06 + i * 0.03), 0, 1, -radius * 1.2, radius * 1.2),

ofMap(ofNoise(noise_seed.z, ofGetFrameNum() * 0.06 + i * 0.03), 0, 1, -radius * 1.2, radius * 1.2));

this->random_walk.push_back(location);

}

for (int k = 0; k < this->triangle_list.size(); k++) {

glm::vec3 avg = (this->triangle_list[k].getVertex(0) + this->triangle_list[k].getVertex(1) + this->triangle_list[k].getVertex(2)) / 3;

bool flag = true;

for (auto& location : this->random_walk) {

if (glm::distance(avg, location) < 80) {

if (glm::length(location) < radius + 20 && glm::length(location) > radius - 20) {

flag = false;

continue;

}

if (flag == false) { continue; }

vector<glm::vec3> vertices;

vertices.push_back(glm::normalize(this->triangle_list[k].getVertex(0)) * radius);

vertices.push_back(glm::normalize(this->triangle_list[k].getVertex(1)) * radius);

vertices.push_back(glm::normalize(this->triangle_list[k].getVertex(2)) * radius);

this->mesh.addVertices(vertices);

this->frame.addVertices(vertices);

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

auto alpha = radius < 250 ? 255 : ofMap(radius, 250, 320, 255, 0);

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

this->frame.addColor(ofColor(255, 255, 255, alpha));

}

this->mesh.addTriangle(this->mesh.getNumVertices() - 1, this->mesh.getNumVertices() - 2, this->mesh.getNumVertices() - 3);

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

this->frame.addIndex(this->frame.getNumVertices() - 2); this->frame.addIndex(this->frame.getNumVertices() - 3);

this->frame.addIndex(this->frame.getNumVertices() - 3); this->frame.addIndex(this->frame.getNumVertices() - 1);

}

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

void ofApp::draw() {

this->cam.begin();

ofRotateY(ofGetFrameNum());

ofSetLineWidth(0.5);

this->mesh.draw();

this->frame.drawWireframe();

ofSetColor(255);

ofSetLineWidth(3);

ofBeginShape();

ofVertices(this->random_walk);

ofEndShape();

this->cam.end();

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20230626

2025年2月
月	火	水	木	金	土	日
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