noise – ページ 14 – 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7月5日

Noisy Circle. Draw by openFrameworks

[ Video ]

[ About ]
ノイズ円。

[ Source ]

#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) {};

	ofMesh mesh;
};

#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) {};

ofMesh mesh;

};

#include "ofApp.h"

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

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

	ofBackground(239);
}

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

	ofSeedRandom(39);

	this->mesh.clear();

	int len = 580;
	int span = 1;
	ofColor color;


	for (int x = len * -0.5; x < len * 0.5; x += span) {

		for (int y = len * -0.5; y < len * 0.5; y += span) {

			if (glm::length(glm::vec2(x, y)) > 250) { continue; }

			auto noise_value = ofMap(ofNoise(x * 0.008, y * 0.008, ofGetFrameNum() * 0.005), 0, 1, 0, 10);

			this->mesh.addVertex(glm::vec3(x, y, 0));
			this->mesh.addVertex(glm::vec3(x + span, y, 0));
			this->mesh.addVertex(glm::vec3(x + span, y + span, 0));
			this->mesh.addVertex(glm::vec3(x, y + span, 0));

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

			noise_value = noise_value - (int)noise_value;
			color = ofColor(ofMap(abs(noise_value - 0.5), 0, 0.5, 39, 239), 39, 39);
			for (int i = 0; i < 4; i++) {

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

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

	ofTranslate(ofGetWindowSize() * 0.5);

	this->mesh.draw();
}

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

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

#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(30);

ofSetWindowTitle("openFrameworks");

ofBackground(239);

}

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

void ofApp::update() {

ofSeedRandom(39);

this->mesh.clear();

int len = 580;

int span = 1;

ofColor color;

for (int x = len * -0.5; x < len * 0.5; x += span) {

for (int y = len * -0.5; y < len * 0.5; y += span) {

if (glm::length(glm::vec2(x, y)) > 250) { continue; }

auto noise_value = ofMap(ofNoise(x * 0.008, y * 0.008, ofGetFrameNum() * 0.005), 0, 1, 0, 10);

this->mesh.addVertex(glm::vec3(x, y, 0));

this->mesh.addVertex(glm::vec3(x + span, y, 0));

this->mesh.addVertex(glm::vec3(x + span, y + span, 0));

this->mesh.addVertex(glm::vec3(x, y + span, 0));

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

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

noise_value = noise_value - (int)noise_value;

color = ofColor(ofMap(abs(noise_value - 0.5), 0, 0.5, 39, 239), 39, 39);

for (int i = 0; i < 4; i++) {

this->mesh.addColor(color);

}

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

void ofApp::draw() {

ofTranslate(ofGetWindowSize() * 0.5);

this->mesh.draw();

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20230705

2023年6月27日

Character pool. Draw by openFrameworks

[ Video ]

[ About ]
文字の生け簀。

[ 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) {};

	ofTrueTypeFont font;
	string word;
};

#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) {};

ofTrueTypeFont font;

string word;

};

#include "ofApp.h"	

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

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

	ofBackground(39);
	ofSetLineWidth(3);

	this->font.loadFont("fonts/Kazesawa-Bold.ttf", 50, true, true, true);
	//this->word = "ABCDEFGHIJKLMNOPQRSTUVWXYZ";
	this->word = "0123456789";
}

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


}

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

	ofTranslate(ofGetWindowSize() * 0.5);

	ofColor color;
	ofSeedRandom(39);
	for (int i = 0; i < 600; i++) {

		auto noise_seed = glm::vec2(ofRandom(1000), ofRandom(1000));
		auto location = glm::vec2(
			ofMap(ofNoise(noise_seed.x, ofGetFrameNum() * 0.0025), 0, 1, -600, 600),
			ofMap(ofNoise(noise_seed.y, ofGetFrameNum() * 0.0025), 0, 1, -600, 600));
		auto next = glm::vec2(
			ofMap(ofNoise(noise_seed.x, (ofGetFrameNum() + 1) * 0.0025), 0, 1, -600, 600),
			ofMap(ofNoise(noise_seed.y, (ofGetFrameNum() + 1) * 0.0025), 0, 1, -600, 600));
		auto angle = std::atan2(next.y - location.y, next.x - location.x);


		ofPushMatrix();
		ofTranslate(location);
		ofRotate(angle * RAD_TO_DEG + 90);

		ofPath chara_path = this->font.getCharacterAsPoints(this->word[(int)ofRandom(this->word.size())], true, false);
		vector<ofPolyline> outline = chara_path.getOutline();

		ofFill();
		ofSetColor(ofMap(i, 0, 600, 39, 239));
		ofBeginShape();
		for (int outline_index = 0; outline_index < outline.size(); outline_index++) {

			ofNextContour(true);

			auto vertices = outline[outline_index].getVertices();
			for (auto& vertex : vertices) {

				ofVertex(vertex);
			}
		}
		ofEndShape(true);

		ofPopMatrix();
	}
}

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

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

#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(30);

ofSetWindowTitle("openFrameworks");

ofBackground(39);

ofSetLineWidth(3);

this->font.loadFont("fonts/Kazesawa-Bold.ttf", 50, true, true, true);

//this->word = "ABCDEFGHIJKLMNOPQRSTUVWXYZ";

this->word = "0123456789";

}

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

void ofApp::update() {

}

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

void ofApp::draw() {

ofTranslate(ofGetWindowSize() * 0.5);

ofColor color;

ofSeedRandom(39);

for (int i = 0; i < 600; i++) {

auto noise_seed = glm::vec2(ofRandom(1000), ofRandom(1000));

auto location = glm::vec2(

ofMap(ofNoise(noise_seed.x, ofGetFrameNum() * 0.0025), 0, 1, -600, 600),

ofMap(ofNoise(noise_seed.y, ofGetFrameNum() * 0.0025), 0, 1, -600, 600));

auto next = glm::vec2(

ofMap(ofNoise(noise_seed.x, (ofGetFrameNum() + 1) * 0.0025), 0, 1, -600, 600),

ofMap(ofNoise(noise_seed.y, (ofGetFrameNum() + 1) * 0.0025), 0, 1, -600, 600));

auto angle = std::atan2(next.y - location.y, next.x - location.x);

ofPushMatrix();

ofTranslate(location);

ofRotate(angle * RAD_TO_DEG + 90);

ofPath chara_path = this->font.getCharacterAsPoints(this->word[(int)ofRandom(this->word.size())], true, false);

vector<ofPolyline> outline = chara_path.getOutline();

ofFill();

ofSetColor(ofMap(i, 0, 600, 39, 239));

ofBeginShape();

for (int outline_index = 0; outline_index < outline.size(); outline_index++) {

ofNextContour(true);

auto vertices = outline[outline_index].getVertices();

for (auto& vertex : vertices) {

ofVertex(vertex);

}

ofEndShape(true);

ofPopMatrix();

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20230627

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