noise – ページ 18 – プログラミング de 落描き

2023年6月8日

Irregularity. Draw by openFrameworks

[ Video ]

[ About ]
不規則運動。

[ 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) {};

	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) {};

float noise_seed;

};

#include "ofApp.h"

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

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

	ofBackground(39);
	ofSetLineWidth(2);
}

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

	if (ofGetFrameNum() % 60 == 0) {

		this->noise_seed = ofRandom(1000);
	}

	ofSeedRandom(this->noise_seed);
}

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

	ofTranslate(ofGetWindowSize() * 0.5);

	ofColor color;
	int hue = ofRandom(255);
	float len = 15;

	for (int radius = 50; radius < 320; radius += 15) {

		ofRotateY(180);

		vector<glm::vec2> vertices_1, vertices_2;
		float direction = radius % 20 == 0 ? 1 : -1;
		float deg_start = ofRandom(360);
		float deg_len = (ofGetFrameNum() * 6) % 540;
		float deg_end = deg_start + deg_len;

		for (float deg = deg_start; deg < deg_end; deg += 1) {

			vertices_1.push_back(glm::vec2((radius - len * 0.5) * cos(deg * DEG_TO_RAD), (radius - len * 0.5) * sin(deg * DEG_TO_RAD)));
			vertices_2.push_back(glm::vec2((radius + len * 0.5) * cos(deg * DEG_TO_RAD), (radius + len * 0.5) * sin(deg * DEG_TO_RAD)));
		}

		reverse(vertices_2.begin(), vertices_2.end());
		
		color.setHsb(hue, 150, 255);

		ofFill();
		ofSetColor(color);

		ofBeginShape();
		ofVertices(vertices_1);
		ofVertices(vertices_2);
		ofEndShape(true);

		ofNoFill();
		ofSetColor(0);

		ofBeginShape();
		ofVertices(vertices_1);
		ofVertices(vertices_2);
		ofEndShape(true);

		hue = (hue + (int)ofRandom(20, 120)) % 255;
	}
}

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

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

#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(30);

ofSetWindowTitle("openframeworks");

ofBackground(39);

ofSetLineWidth(2);

}

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

void ofApp::update() {

if (ofGetFrameNum() % 60 == 0) {

this->noise_seed = ofRandom(1000);

}

ofSeedRandom(this->noise_seed);

}

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

void ofApp::draw() {

ofTranslate(ofGetWindowSize() * 0.5);

ofColor color;

int hue = ofRandom(255);

float len = 15;

for (int radius = 50; radius < 320; radius += 15) {

ofRotateY(180);

vector<glm::vec2> vertices_1, vertices_2;

float direction = radius % 20 == 0 ? 1 : -1;

float deg_start = ofRandom(360);

float deg_len = (ofGetFrameNum() * 6) % 540;

float deg_end = deg_start + deg_len;

for (float deg = deg_start; deg < deg_end; deg += 1) {

vertices_1.push_back(glm::vec2((radius - len * 0.5) * cos(deg * DEG_TO_RAD), (radius - len * 0.5) * sin(deg * DEG_TO_RAD)));

vertices_2.push_back(glm::vec2((radius + len * 0.5) * cos(deg * DEG_TO_RAD), (radius + len * 0.5) * sin(deg * DEG_TO_RAD)));

}

reverse(vertices_2.begin(), vertices_2.end());

color.setHsb(hue, 150, 255);

ofFill();

ofSetColor(color);

ofBeginShape();

ofVertices(vertices_1);

ofVertices(vertices_2);

ofEndShape(true);

ofNoFill();

ofSetColor(0);

ofBeginShape();

ofVertices(vertices_1);

ofVertices(vertices_2);

ofEndShape(true);

hue = (hue + (int)ofRandom(20, 120)) % 255;

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20230608

2023年6月5日

Separation. Draw by openFrameworks

[ Video ]

[ About ]
セパレート。

[ 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) {};
};

#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) {};

};

#include "ofApp.h"

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

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

	ofBackground(39);
	ofEnableBlendMode(ofBlendMode::OF_BLENDMODE_ADD);
}

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

	ofSeedRandom(39);
}

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

	float span = 3;
	vector<ofColor> color_list = { ofColor(255, 0, 0), ofColor(0, 255, 0), ofColor(0, 0, 255) };
	for (int i = 0; i < color_list.size(); i++) {

		ofMesh mesh;
		auto noise_value = ofRandom(1000);

		for (float x = 75; x < ofGetWindowWidth() - 10 - span - 75; x += span) {

			for (float y = 75; y < ofGetWindowHeight() - 10 - span - 75; y += span) {

				if ((int)(x - 75) % 200 < 150 && (int)(y - 75) % 200 < 150) {

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

					for (int k = mesh.getNumVertices() - 4; k < mesh.getNumVertices(); k++) {

						auto noise_value = ofNoise(mesh.getVertex(k).x * 0.01, mesh.getVertex(k).y * 0.01, ofGetFrameNum() * 0.08 + i * 0.15);
						int int_noise_value = noise_value;
						float param = noise_value - int_noise_value;
						param = abs(param - 0.5);

						auto color = ofColor(color_list[i], param < 0.15 ? ofMap(param, 0, 0.15, 255, 0) : 0);
						mesh.addColor(color);
					}

					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.draw();
	}
}

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

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

#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(30);

ofSetWindowTitle("openFrameworks");

ofBackground(39);

ofEnableBlendMode(ofBlendMode::OF_BLENDMODE_ADD);

}

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

void ofApp::update() {

ofSeedRandom(39);

}

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

void ofApp::draw() {

float span = 3;

vector<ofColor> color_list = { ofColor(255, 0, 0), ofColor(0, 255, 0), ofColor(0, 0, 255) };

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

ofMesh mesh;

auto noise_value = ofRandom(1000);

for (float x = 75; x < ofGetWindowWidth() - 10 - span - 75; x += span) {

for (float y = 75; y < ofGetWindowHeight() - 10 - span - 75; y += span) {

if ((int)(x - 75) % 200 < 150 && (int)(y - 75) % 200 < 150) {

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

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

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

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

for (int k = mesh.getNumVertices() - 4; k < mesh.getNumVertices(); k++) {

auto noise_value = ofNoise(mesh.getVertex(k).x * 0.01, mesh.getVertex(k).y * 0.01, ofGetFrameNum() * 0.08 + i * 0.15);

int int_noise_value = noise_value;

float param = noise_value - int_noise_value;

param = abs(param - 0.5);

auto color = ofColor(color_list[i], param < 0.15 ? ofMap(param, 0, 0.15, 255, 0) : 0);

mesh.addColor(color);

}

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.draw();

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20230605

2023年6月4日

Blue line sphere. Draw by openFrameworks

[ Video ]

[ About ]
青い線の球体。

[ 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(239);
	ofEnableDepthTest();

	auto ico_sphere = ofIcoSpherePrimitive(250, 7);
	this->mesh = ico_sphere.getMesh();
}

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

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

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

		auto noise_value = ofNoise(glm::vec4(this->mesh.getVertex(i) * 0.008, ofGetFrameNum() * 0.03));
		int int_noise_value = noise_value;
		float param = noise_value - int_noise_value;
		param = abs(param - 0.5);
		
		auto value = param < 0.1 ? ofMap(param, 0, 0.1, 255, 39) : 39;
		auto color = ofColor(0, 0, value);
		this->mesh.addColor(color);
	}
}

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

	this->cam.begin();
	ofRotateY(ofGetFrameNum() * 0.7777);
	ofRotateX(ofGetFrameNum() * 1.15);

	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(239);

ofEnableDepthTest();

auto ico_sphere = ofIcoSpherePrimitive(250, 7);

this->mesh = ico_sphere.getMesh();

}

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

void ofApp::update() {

this->mesh.clearColors();

ofSeedRandom(39);

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

auto noise_value = ofNoise(glm::vec4(this->mesh.getVertex(i) * 0.008, ofGetFrameNum() * 0.03));

int int_noise_value = noise_value;

float param = noise_value - int_noise_value;

param = abs(param - 0.5);

auto value = param < 0.1 ? ofMap(param, 0, 0.1, 255, 39) : 39;

auto color = ofColor(0, 0, value);

this->mesh.addColor(color);

}

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

void ofApp::draw() {

this->cam.begin();

ofRotateY(ofGetFrameNum() * 0.7777);

ofRotateX(ofGetFrameNum() * 1.15);

this->mesh.drawFaces();

this->cam.end();

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20230604

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