noise – ページ 25 – プログラミング de 落描き

2023年5月11日

Framed. Draw by openFrameworks

[ Video ]

[ About ]
枠付き。

[ 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) {};

	ofMesh base_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) {};

ofMesh base_mesh;

};

#include "ofApp.h"

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

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

	ofBackground(239);
	ofSetColor(255);
	ofSetLineWidth(0.5);

	auto ico_sphere = ofIcoSpherePrimitive(300, 2);
	this->base_mesh = ico_sphere.getMesh();
}

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

}

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

	ofTranslate(ofGetWindowSize() * 0.5);
	
	ofSetColor(0);
	for (auto v : this->base_mesh.getVertices()) {

		for (int i = 0; i < 40; i++) {

			auto rotation_x = glm::rotate(glm::mat4(), ofMap(ofNoise(glm::vec4(v * 0.00035, ofGetFrameNum() * 0.008 + i * 0.00065)), 0, 1, -360, 360) * (float)DEG_TO_RAD, glm::vec3(1, 0, 0));
			auto rotation_y = glm::rotate(glm::mat4(), ofMap(ofNoise(glm::vec4(v * 0.00035, ofGetFrameNum() * 0.008 + i * 0.00065)), 0, 1, -360, 360) * (float)DEG_TO_RAD, glm::vec3(0, 1, 0));
			auto rotation_z = glm::rotate(glm::mat4(), ofMap(ofNoise(glm::vec4(v * 0.00035, ofGetFrameNum() * 0.008 + i * 0.00065)), 0, 1, -360, 360) * (float)DEG_TO_RAD, glm::vec3(0, 0, 1));
			glm::vec3 vertex = glm::vec4(v, 0) * rotation_z * rotation_y * rotation_x;
			vertex.z = 0;

			ofDrawCircle(vertex, 8);
		}
	}

	ofSetColor(255);
	for (auto v : this->base_mesh.getVertices()) {

		for (int i = 0; i < 40; i++) {

			auto rotation_x = glm::rotate(glm::mat4(), ofMap(ofNoise(glm::vec4(v * 0.00035, ofGetFrameNum() * 0.008 + i * 0.00065)), 0, 1, -360, 360) * (float)DEG_TO_RAD, glm::vec3(1, 0, 0));
			auto rotation_y = glm::rotate(glm::mat4(), ofMap(ofNoise(glm::vec4(v * 0.00035, ofGetFrameNum() * 0.008 + i * 0.00065)), 0, 1, -360, 360) * (float)DEG_TO_RAD, glm::vec3(0, 1, 0));
			auto rotation_z = glm::rotate(glm::mat4(), ofMap(ofNoise(glm::vec4(v * 0.00035, ofGetFrameNum() * 0.008 + i * 0.00065)), 0, 1, -360, 360) * (float)DEG_TO_RAD, glm::vec3(0, 0, 1));
			glm::vec3 vertex = glm::vec4(v, 0) * rotation_z * rotation_y * rotation_x;
			vertex.z = 0;

			ofDrawCircle(vertex, 5);
		}
	}
}

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

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

#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(30);

ofSetWindowTitle("openFrameworks");

ofBackground(239);

ofSetColor(255);

ofSetLineWidth(0.5);

auto ico_sphere = ofIcoSpherePrimitive(300, 2);

this->base_mesh = ico_sphere.getMesh();

}

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

void ofApp::update() {

}

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

void ofApp::draw() {

ofTranslate(ofGetWindowSize() * 0.5);

ofSetColor(0);

for (auto v : this->base_mesh.getVertices()) {

for (int i = 0; i < 40; i++) {

auto rotation_x = glm::rotate(glm::mat4(), ofMap(ofNoise(glm::vec4(v * 0.00035, ofGetFrameNum() * 0.008 + i * 0.00065)), 0, 1, -360, 360) * (float)DEG_TO_RAD, glm::vec3(1, 0, 0));

auto rotation_y = glm::rotate(glm::mat4(), ofMap(ofNoise(glm::vec4(v * 0.00035, ofGetFrameNum() * 0.008 + i * 0.00065)), 0, 1, -360, 360) * (float)DEG_TO_RAD, glm::vec3(0, 1, 0));

auto rotation_z = glm::rotate(glm::mat4(), ofMap(ofNoise(glm::vec4(v * 0.00035, ofGetFrameNum() * 0.008 + i * 0.00065)), 0, 1, -360, 360) * (float)DEG_TO_RAD, glm::vec3(0, 0, 1));

glm::vec3 vertex = glm::vec4(v, 0) * rotation_z * rotation_y * rotation_x;

vertex.z = 0;

ofDrawCircle(vertex, 8);

}

ofSetColor(255);

for (auto v : this->base_mesh.getVertices()) {

for (int i = 0; i < 40; i++) {

auto rotation_x = glm::rotate(glm::mat4(), ofMap(ofNoise(glm::vec4(v * 0.00035, ofGetFrameNum() * 0.008 + i * 0.00065)), 0, 1, -360, 360) * (float)DEG_TO_RAD, glm::vec3(1, 0, 0));

auto rotation_y = glm::rotate(glm::mat4(), ofMap(ofNoise(glm::vec4(v * 0.00035, ofGetFrameNum() * 0.008 + i * 0.00065)), 0, 1, -360, 360) * (float)DEG_TO_RAD, glm::vec3(0, 1, 0));

auto rotation_z = glm::rotate(glm::mat4(), ofMap(ofNoise(glm::vec4(v * 0.00035, ofGetFrameNum() * 0.008 + i * 0.00065)), 0, 1, -360, 360) * (float)DEG_TO_RAD, glm::vec3(0, 0, 1));

glm::vec3 vertex = glm::vec4(v, 0) * rotation_z * rotation_y * rotation_x;

vertex.z = 0;

ofDrawCircle(vertex, 5);

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20230511

2023年5月10日

Sphere spin. Draw by openFrameworks

[ Video ]

[ About ]
球体スピン。

[ 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 base_mesh, draw_mesh, sphere_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 base_mesh, draw_mesh, sphere_mesh;

};

#include "ofApp.h"

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

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

	ofBackground(39);
	ofSetColor(255);
	ofSetLineWidth(2);

	auto ico_sphere = ofIcoSpherePrimitive(250, 2);
	this->base_mesh = ico_sphere.getMesh();
	this->draw_mesh.setMode(ofPrimitiveMode::OF_PRIMITIVE_LINES);
}

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

	this->draw_mesh.clear();
	this->sphere_mesh.clear();

	for (auto v : this->base_mesh.getVertices()) {

		for (int i = 0; i < 20; i++) {

			auto rotation_x = glm::rotate(glm::mat4(), ofMap(ofNoise(glm::vec4(v * 0.00035, ofGetFrameNum() * 0.006 + i * 0.005)), 0, 1, -180, 180) * (float)DEG_TO_RAD, glm::vec3(1, 0, 0));
			auto rotation_y = glm::rotate(glm::mat4(), ofMap(ofNoise(glm::vec4(v * 0.00035, ofGetFrameNum() * 0.006 + i * 0.005)), 0, 1, -180, 180) * (float)DEG_TO_RAD, glm::vec3(0, 1, 0));
			auto rotation_z = glm::rotate(glm::mat4(), ofMap(ofNoise(glm::vec4(v * 0.00035, ofGetFrameNum() * 0.006 + i * 0.005)), 0, 1, -180, 180) * (float)DEG_TO_RAD, glm::vec3(0, 0, 1));
			auto vertex = glm::vec4(v, 0) * rotation_z * rotation_y * rotation_x;
			vertex.z = 0;

			this->draw_mesh.addVertex(vertex);
			if (i != 0) {

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

			if (i == 0 || i == 19) {

				this->sphere_mesh.addVertex(vertex);
			}
		}
	}
}

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

	this->cam.begin();
	
	this->draw_mesh.drawWireframe();

	for (auto v : this->sphere_mesh.getVertices()) {

		ofDrawSphere(v, 4);
	}

	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);

ofSetColor(255);

ofSetLineWidth(2);

auto ico_sphere = ofIcoSpherePrimitive(250, 2);

this->base_mesh = ico_sphere.getMesh();

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

}

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

void ofApp::update() {

this->draw_mesh.clear();

this->sphere_mesh.clear();

for (auto v : this->base_mesh.getVertices()) {

for (int i = 0; i < 20; i++) {

auto rotation_x = glm::rotate(glm::mat4(), ofMap(ofNoise(glm::vec4(v * 0.00035, ofGetFrameNum() * 0.006 + i * 0.005)), 0, 1, -180, 180) * (float)DEG_TO_RAD, glm::vec3(1, 0, 0));

auto rotation_y = glm::rotate(glm::mat4(), ofMap(ofNoise(glm::vec4(v * 0.00035, ofGetFrameNum() * 0.006 + i * 0.005)), 0, 1, -180, 180) * (float)DEG_TO_RAD, glm::vec3(0, 1, 0));

auto rotation_z = glm::rotate(glm::mat4(), ofMap(ofNoise(glm::vec4(v * 0.00035, ofGetFrameNum() * 0.006 + i * 0.005)), 0, 1, -180, 180) * (float)DEG_TO_RAD, glm::vec3(0, 0, 1));

auto vertex = glm::vec4(v, 0) * rotation_z * rotation_y * rotation_x;

vertex.z = 0;

this->draw_mesh.addVertex(vertex);

if (i != 0) {

this->draw_mesh.addIndex(this->draw_mesh.getNumVertices() - 1);

this->draw_mesh.addIndex(this->draw_mesh.getNumVertices() - 2);

}

if (i == 0 || i == 19) {

this->sphere_mesh.addVertex(vertex);

}

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

void ofApp::draw() {

this->cam.begin();

this->draw_mesh.drawWireframe();

for (auto v : this->sphere_mesh.getVertices()) {

ofDrawSphere(v, 4);

}

this->cam.end();

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20230510

2023年5月7日

Blood Vessels. Draw by openFrameworks

[ Video ]

[ About ]
心臓の血管。

[ 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) {};

	glm::vec3 make_point(float theta);

	float noise_param;
};

#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) {};

glm::vec3 make_point(float theta);

float noise_param;

};

#include "ofApp.h"	

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

	ofSetFrameRate(30);
	ofSetWindowTitle("openFrameworks");
	
	ofBackground(239);
	ofSetColor(192, 0, 0);
	ofNoFill();
	ofSetLineWidth(2);
}

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

	ofSeedRandom(139);

	noise_param += 0.013;
}

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

	ofTranslate(ofGetWindowSize() * 0.5 + glm::vec2(0, -50));

	vector<ofColor> color_list;
	for (int value = 192; value >= 0; value -= 16) {

		color_list.push_back(ofColor(value, 0, 0));
	}

	float scale_span = 0.05;
	float deg_span = 0.05;

	for (int i = 0; i < color_list.size(); i++) {
	
		ofMesh mesh;
		float noise_seed = ofRandom(1000);
		for (float scale = 5; scale < 20; scale += scale_span) {

			for (float deg = 0; deg < 360; deg += deg_span) {

				auto noise_location = this->make_point((deg + deg_span * 0.5) * DEG_TO_RAD) * (scale + scale_span * 0.5);
				auto noise_value = ofNoise(noise_seed, noise_location.x * 0.005, noise_location.y * 0.005, noise_param);

				if (noise_value > 0.485 && noise_value < 0.515) {

					mesh.addVertex(this->make_point(deg * DEG_TO_RAD) * scale);
					mesh.addVertex(this->make_point((deg + deg_span) * DEG_TO_RAD) * scale);
					mesh.addVertex(this->make_point((deg + deg_span) * DEG_TO_RAD) * (scale + scale_span));
					mesh.addVertex(this->make_point(deg * DEG_TO_RAD) * (scale + scale_span));

					mesh.addIndex(mesh.getNumVertices() - 1); mesh.addIndex(mesh.getNumVertices() - 2); mesh.addIndex(mesh.getNumVertices() - 3);
					mesh.addIndex(mesh.getNumVertices() - 1); mesh.addIndex(mesh.getNumVertices() - 3); mesh.addIndex(mesh.getNumVertices() - 4);

					mesh.addColor(color_list[i]);
					mesh.addColor(color_list[i]);
					mesh.addColor(color_list[i]);
					mesh.addColor(color_list[i]);
				}
			}
		}
		mesh.draw();
	}

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

		ofVertex(this->make_point(deg * DEG_TO_RAD) * 20);
	}
	ofEndShape(true);

	ostringstream os;
	os << setw(4) << setfill('0') << ofGetFrameNum() + 1;
	ofImage image;
	image.grabScreen(0, 0, ofGetWidth(), ofGetHeight());
	image.saveImage("image/img_" + os.str() + ".jpg");
	if (ofGetFrameNum() + 1 >= 24 * 20) {

		std::exit(1);
	}

	// > ffmpeg -i img_%04d.jpg -r 30 out.mp4
}

//--------------------------------------------------------------
// Reference by https://twitter.com/shiffman/status/1095764239665512453
glm::vec3 ofApp::make_point(float theta) {

	float x = 16 * (pow(sin(theta), 3));
	float y = 13 * cos(theta) - 5 * cos(2 * theta) - 2 * cos(3 * theta) - cos(4 * theta);
	return glm::vec3(x, -y, 0);
}


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

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

100

101

102

103

#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(30);

ofSetWindowTitle("openFrameworks");

ofBackground(239);

ofSetColor(192, 0, 0);

ofNoFill();

ofSetLineWidth(2);

}

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

void ofApp::update() {

ofSeedRandom(139);

noise_param += 0.013;

}

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

void ofApp::draw() {

ofTranslate(ofGetWindowSize() * 0.5 + glm::vec2(0, -50));

vector<ofColor> color_list;

for (int value = 192; value >= 0; value -= 16) {

color_list.push_back(ofColor(value, 0, 0));

}

float scale_span = 0.05;

float deg_span = 0.05;

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

ofMesh mesh;

float noise_seed = ofRandom(1000);

for (float scale = 5; scale < 20; scale += scale_span) {

for (float deg = 0; deg < 360; deg += deg_span) {

auto noise_location = this->make_point((deg + deg_span * 0.5) * DEG_TO_RAD) * (scale + scale_span * 0.5);

auto noise_value = ofNoise(noise_seed, noise_location.x * 0.005, noise_location.y * 0.005, noise_param);

if (noise_value > 0.485 && noise_value < 0.515) {

mesh.addVertex(this->make_point(deg * DEG_TO_RAD) * scale);

mesh.addVertex(this->make_point((deg + deg_span) * DEG_TO_RAD) * scale);

mesh.addVertex(this->make_point((deg + deg_span) * DEG_TO_RAD) * (scale + scale_span));

mesh.addVertex(this->make_point(deg * DEG_TO_RAD) * (scale + scale_span));

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

mesh.addIndex(mesh.getNumVertices() - 1); mesh.addIndex(mesh.getNumVertices() - 3); mesh.addIndex(mesh.getNumVertices() - 4);

mesh.addColor(color_list[i]);

}

mesh.draw();

}

ofBeginShape();

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

ofVertex(this->make_point(deg * DEG_TO_RAD) * 20);

}

ofEndShape(true);

ostringstream os;

os << setw(4) << setfill('0') << ofGetFrameNum() + 1;

ofImage image;

image.grabScreen(0, 0, ofGetWidth(), ofGetHeight());

image.saveImage("image/img_" + os.str() + ".jpg");

if (ofGetFrameNum() + 1 >= 24 * 20) {

std::exit(1);

}

// > ffmpeg -i img_%04d.jpg -r 30 out.mp4

}

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

// Reference by https://twitter.com/shiffman/status/1095764239665512453

glm::vec3 ofApp::make_point(float theta) {

float x = 16 * (pow(sin(theta), 3));

float y = 13 * cos(theta) - 5 * cos(2 * theta) - 2 * cos(3 * theta) - cos(4 * theta);

return glm::vec3(x, -y, 0);

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20230507

2025年5月
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