sphere – ページ 44 – プログラミング de 落描き

2020年4月10日2020年4月10日

Tangled lines. openFrameworks

[ Video ]

[ About ]
見えない球体の周りを周回する、線群。

A group of lines orbiting around an invisible 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;
};

#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);
	ofEnableDepthTest();
}

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

	ofSeedRandom(39);
}

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

	this->cam.begin();

	int number_of_satellite = 60;
	int number_of_log = 20;

	auto base_seed_x = ofRandom(1000);
	auto base_seed_y = ofRandom(1000);
	auto base_location = glm::vec3(
		ofMap(ofNoise(base_seed_x, (ofGetFrameNum() + number_of_log) * 0.005), 0, 1, -250, 250),
		ofMap(ofNoise(base_seed_y, (ofGetFrameNum() + number_of_log) * 0.005), 0, 1, -250, 250),
		0);
	auto base_radius = 100;

	ofSetColor(239);
	ofDrawSphere(base_location, base_radius);

	vector<glm::vec3> location_list;
	for (int i = 0; i < number_of_satellite; i++) {

		float noise_seed_x = ofRandom(1000);
		float noise_seed_y = ofRandom(1000);
		auto location = glm::vec3(ofRandom(-1, 1), ofRandom(-1, 1), ofRandom(-1, 1));
		location = glm::normalize(location) * base_radius * 1.2;

		for (int k = 0; k < number_of_log; k++) {

			auto rotation_y = glm::rotate(glm::mat4(), ofMap(ofNoise(noise_seed_y, (ofGetFrameNum() + k) * 0.005), 0, 1, -PI * 2, PI * 2), glm::vec3(0, 1, 0));
			auto rotation_x = glm::rotate(glm::mat4(), ofMap(ofNoise(noise_seed_x, (ofGetFrameNum() + k) * 0.005), 0, 1, -PI * 2, PI * 2), glm::vec3(1, 0, 0));
			auto tmp_base_location = glm::vec3(
				ofMap(ofNoise(base_seed_x, (ofGetFrameNum() + k) * 0.005), 0, 1, -250, 250),
				ofMap(ofNoise(base_seed_y, (ofGetFrameNum() + k) * 0.005), 0, 1, -250, 250),
				0);
			auto loc = tmp_base_location + glm::vec4(location, 0) * rotation_y * rotation_x;
			location_list.push_back(loc);
		}
	}

	ofSetColor(39);
	for (int i = 0; i < location_list.size(); i++) {

		//ofDrawSphere(location_list[i], 2);
		for (int k = i + 1; k < location_list.size(); k++) {

			if (glm::distance(location_list[i], location_list[k]) < 35) {

				ofDrawLine(location_list[i], location_list[k]);
			}
		}
	}

	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);

}

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

void ofApp::draw() {

this->cam.begin();

int number_of_satellite = 60;

int number_of_log = 20;

auto base_seed_x = ofRandom(1000);

auto base_seed_y = ofRandom(1000);

auto base_location = glm::vec3(

ofMap(ofNoise(base_seed_x, (ofGetFrameNum() + number_of_log) * 0.005), 0, 1, -250, 250),

ofMap(ofNoise(base_seed_y, (ofGetFrameNum() + number_of_log) * 0.005), 0, 1, -250, 250),

0);

auto base_radius = 100;

ofSetColor(239);

ofDrawSphere(base_location, base_radius);

vector<glm::vec3> location_list;

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

float noise_seed_x = ofRandom(1000);

float noise_seed_y = ofRandom(1000);

auto location = glm::vec3(ofRandom(-1, 1), ofRandom(-1, 1), ofRandom(-1, 1));

location = glm::normalize(location) * base_radius * 1.2;

for (int k = 0; k < number_of_log; k++) {

auto rotation_y = glm::rotate(glm::mat4(), ofMap(ofNoise(noise_seed_y, (ofGetFrameNum() + k) * 0.005), 0, 1, -PI * 2, PI * 2), glm::vec3(0, 1, 0));

auto rotation_x = glm::rotate(glm::mat4(), ofMap(ofNoise(noise_seed_x, (ofGetFrameNum() + k) * 0.005), 0, 1, -PI * 2, PI * 2), glm::vec3(1, 0, 0));

auto tmp_base_location = glm::vec3(

ofMap(ofNoise(base_seed_x, (ofGetFrameNum() + k) * 0.005), 0, 1, -250, 250),

ofMap(ofNoise(base_seed_y, (ofGetFrameNum() + k) * 0.005), 0, 1, -250, 250),

0);

auto loc = tmp_base_location + glm::vec4(location, 0) * rotation_y * rotation_x;

location_list.push_back(loc);

}

ofSetColor(39);

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

//ofDrawSphere(location_list[i], 2);

for (int k = i + 1; k < location_list.size(); k++) {

if (glm::distance(location_list[i], location_list[k]) < 35) {

ofDrawLine(location_list[i], location_list[k]);

}

this->cam.end();

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20200410

[ほしいものリスト]
Amazon

[ Sponsor Link ]

2020年4月7日2020年4月7日

Stillness and motion. openFrameworks

[ Video ]

[ About ]
Noiseに加える引数の値をフレーム数で調整。

Adjusts the value of the argument added to Noise by the number of frames.

[ 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;
	ofMesh mesh, frame;
	float noise_seed;
};

#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;

ofMesh mesh, frame;

float noise_seed;

};

#include "ofApp.h"

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

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

	ofBackground(239);
	ofSetLineWidth(1.5);
	ofEnableDepthTest();

	this->ico_sphere = ofIcoSpherePrimitive(65, 2);
	this->frame.setMode(ofPrimitiveMode::OF_PRIMITIVE_LINES);

	this->noise_seed = ofRandom(1000);
}

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

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

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

	for (int x = -200; x <= 200; x += 200) {

		for (int y = -200; y <= 200; y += 200) {

			glm::vec3 location = glm::vec3(x, y, 0);
			for (auto& triangle : triangle_list) {

				auto mesh_index = this->mesh.getNumVertices();
				auto frame_index = this->frame.getNumVertices();
				glm::vec3 avg = location + (triangle.getVertex(0) + triangle.getVertex(1) + triangle.getVertex(2)) / 3;
				auto noise_value = ofNoise(glm::vec4(avg * 0.015, this->noise_seed));
				auto noise_radius = 0;

				if (noise_value < 0.75) {

					noise_radius = 65;
				}
				else {

					noise_radius = ofMap(noise_value, 0.75, 1.0, 65, 120);
				}

				this->mesh.addVertex(location + glm::normalize(triangle.getVertex(0)) * noise_radius);
				this->mesh.addVertex(location + glm::normalize(triangle.getVertex(1)) * noise_radius);
				this->mesh.addVertex(location + glm::normalize(triangle.getVertex(2)) * noise_radius);

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

				avg = (this->mesh.getVertex(mesh_index + 0) + this->mesh.getVertex(mesh_index + 1) + this->mesh.getVertex(mesh_index + 2)) / 3;

				this->frame.addVertex(avg);
				this->frame.addVertex(location);

				this->frame.addIndex(frame_index + 0); this->frame.addIndex(frame_index + 1);
			}
		}
	}

	if (ofGetFrameNum() % 90 < 60) {

		this->noise_seed += ofMap(ofGetFrameNum() % 90, 0, 60, 0.05, 0);
	}
}

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

	this->cam.begin();

	ofSetColor(239);
	this->mesh.draw();

	ofSetColor(39);
	this->mesh.drawWireframe();
	this->frame.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);

ofSetLineWidth(1.5);

ofEnableDepthTest();

this->ico_sphere = ofIcoSpherePrimitive(65, 2);

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

this->noise_seed = ofRandom(1000);

}

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

void ofApp::update() {

this->mesh.clear();

this->frame.clear();

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

for (int x = -200; x <= 200; x += 200) {

for (int y = -200; y <= 200; y += 200) {

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

for (auto& triangle : triangle_list) {

auto mesh_index = this->mesh.getNumVertices();

auto frame_index = this->frame.getNumVertices();

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

auto noise_value = ofNoise(glm::vec4(avg * 0.015, this->noise_seed));

auto noise_radius = 0;

if (noise_value < 0.75) {

noise_radius = 65;

}

else {

noise_radius = ofMap(noise_value, 0.75, 1.0, 65, 120);

}

this->mesh.addVertex(location + glm::normalize(triangle.getVertex(0)) * noise_radius);

this->mesh.addVertex(location + glm::normalize(triangle.getVertex(1)) * noise_radius);

this->mesh.addVertex(location + glm::normalize(triangle.getVertex(2)) * noise_radius);

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

avg = (this->mesh.getVertex(mesh_index + 0) + this->mesh.getVertex(mesh_index + 1) + this->mesh.getVertex(mesh_index + 2)) / 3;

this->frame.addVertex(avg);

this->frame.addVertex(location);

this->frame.addIndex(frame_index + 0); this->frame.addIndex(frame_index + 1);

}

if (ofGetFrameNum() % 90 < 60) {

this->noise_seed += ofMap(ofGetFrameNum() % 90, 0, 60, 0.05, 0);

}

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

void ofApp::draw() {

this->cam.begin();

ofSetColor(239);

this->mesh.draw();

ofSetColor(39);

this->mesh.drawWireframe();

this->frame.drawWireframe();

this->cam.end();

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20200407

[ほしいものリスト]
Amazon

[ Sponsor Link ]

2020年3月26日2020年3月26日

Wavy sphere. openFrameworks

[ Video ]

[ About ]
Noise(x, y, z, z + frameCount)という結果を濃淡として使用。
輪郭のふちはOpenCVで計算。

The result Noise(x, y, z, z + frameCount) is used as a gradient.
The edge of the outline is calculated by OpenCV.

[ Source ]

#pragma once
#include "ofMain.h"
#include "opencv2/opencv.hpp"

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) {};

	ofFbo fbo;
	ofPixels pixels;
	cv::Mat pixels_mat;

	ofMesh fbo_mesh, draw_mesh;
};

#pragma once

#include "ofMain.h"

#include "opencv2/opencv.hpp"

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) {};

ofFbo fbo;

ofPixels pixels;

cv::Mat pixels_mat;

ofMesh fbo_mesh, draw_mesh;

};

#include "ofApp.h"

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

	ofSetFrameRate(30);
	ofSetWindowTitle("openframeworks");

	ofBackground(239);
	ofEnableDepthTest();

	auto fbo_ico_sphere = ofIcoSpherePrimitive(250, 4);
	this->fbo_mesh = fbo_ico_sphere.getMesh();

	auto draw_ico_sphere = ofIcoSpherePrimitive(245, 4);
	this->draw_mesh = draw_ico_sphere.getMesh();

	this->fbo.allocate(ofGetWidth(), ofGetHeight());
	this->fbo.readToPixels(this->pixels);
	this->pixels_mat = cv::Mat(this->pixels.getHeight(), this->pixels.getWidth(), CV_8UC4, this->pixels.getData());
}
//--------------------------------------------------------------
void ofApp::update() {

	this->fbo_mesh.clearColors();
	this->draw_mesh.clearColors();

	for (int i = 0; i < this->fbo_mesh.getVertices().size(); i++) {

		auto vertex = this->fbo_mesh.getVertices()[i];
		ofColor color = ofColor(ofMap(ofNoise(glm::vec4(vertex * 0.005, vertex.z * 0.03 + ofGetFrameNum() * 0.03)), 0, 1, 39, 239));

		this->fbo_mesh.addColor(color);
		this->draw_mesh.addColor(color);
	}

	this->fbo.begin();
	ofClear(0);

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

	this->fbo_mesh.draw();

	this->fbo.end();
	this->fbo.readToPixels(this->pixels);

	cv::GaussianBlur(this->pixels_mat, this->pixels_mat, cv::Size(19, 19), 29, 29);

}

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

	ofFill();
	ofSetColor(255);
	ofImage draw_image;
	draw_image.setFromPixels(this->pixels);
	draw_image.draw(0, 0);

	ofTranslate(ofGetWidth() * 0.5, ofGetHeight() * 0.5);
	this->draw_mesh.draw();
}

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

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

#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(30);

ofSetWindowTitle("openframeworks");

ofBackground(239);

ofEnableDepthTest();

auto fbo_ico_sphere = ofIcoSpherePrimitive(250, 4);

this->fbo_mesh = fbo_ico_sphere.getMesh();

auto draw_ico_sphere = ofIcoSpherePrimitive(245, 4);

this->draw_mesh = draw_ico_sphere.getMesh();

this->fbo.allocate(ofGetWidth(), ofGetHeight());

this->fbo.readToPixels(this->pixels);

this->pixels_mat = cv::Mat(this->pixels.getHeight(), this->pixels.getWidth(), CV_8UC4, this->pixels.getData());

}

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

void ofApp::update() {

this->fbo_mesh.clearColors();

this->draw_mesh.clearColors();

for (int i = 0; i < this->fbo_mesh.getVertices().size(); i++) {

auto vertex = this->fbo_mesh.getVertices()[i];

ofColor color = ofColor(ofMap(ofNoise(glm::vec4(vertex * 0.005, vertex.z * 0.03 + ofGetFrameNum() * 0.03)), 0, 1, 39, 239));

this->fbo_mesh.addColor(color);

this->draw_mesh.addColor(color);

}

this->fbo.begin();

ofClear(0);

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

this->fbo_mesh.draw();

this->fbo.end();

this->fbo.readToPixels(this->pixels);

cv::GaussianBlur(this->pixels_mat, this->pixels_mat, cv::Size(19, 19), 29, 29);

}

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

void ofApp::draw() {

ofFill();

ofSetColor(255);

ofImage draw_image;

draw_image.setFromPixels(this->pixels);

draw_image.draw(0, 0);

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

this->draw_mesh.draw();

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20200326

[ほしいものリスト]
Amazon

[ Sponsor Link ]

月	火	水	木	金	土	日
1	2	3	4	5	6	7
8	9	10	11	12	13	14
15	16	17	18	19	20	21
22	23	24	25	26	27	28
29	30