noise – ページ 70 – プログラミング de 落描き

2022年10月15日

rotate radial. Draw by openFrameworks

[ Video ]

[ About ]
放射線を回転させる。

[ 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;
};

#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(0);
	ofSetColor(255);
	
	ofEnableDepthTest();
	ofSetLineWidth(2);
	
	this->mesh.setMode(ofPrimitiveMode::OF_PRIMITIVE_LINES);
}

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

	ofSeedRandom(39);

	this->mesh.clear();
	
	auto noise_param = glm::vec3(ofRandom(360), ofRandom(360), ofRandom(360));

	for (int radius = 50; radius <= 300; radius += 30) {

		auto rotation = glm::vec3(
			ofMap(ofNoise(noise_param.x, radius * 0.00065 - ofGetFrameNum() * 0.008), 0, 1, -360, 360),
			ofMap(ofNoise(noise_param.y, radius * 0.00065 - ofGetFrameNum() * 0.008), 0, 1, -360, 360),
			ofMap(ofNoise(noise_param.z, radius * 0.00065 - ofGetFrameNum() * 0.008), 0, 1, -360, 360));

		int start_index = this->mesh.getNumVertices();
		int index = start_index;
		for (int deg = 0; deg < 360; deg += 1) {

			auto vertex = glm::vec3(radius * cos(deg * DEG_TO_RAD), radius * sin(deg * DEG_TO_RAD), 0);

			auto rotation_x = glm::rotate(glm::mat4(), rotation.x * (float)DEG_TO_RAD, glm::vec3(1, 0, 0));
			auto rotation_y = glm::rotate(glm::mat4(), rotation.y * (float)DEG_TO_RAD, glm::vec3(0, 1, 0));
			auto rotation_z = glm::rotate(glm::mat4(), rotation.z * (float)DEG_TO_RAD, glm::vec3(0, 0, 1));

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

			this->mesh.addVertex(vertex);

			if (deg > 0) {

				this->mesh.addIndex(index - 1);
				this->mesh.addIndex(index);
			}

			index++;
		}

		this->mesh.addIndex(this->mesh.getNumVertices() - 1);
		this->mesh.addIndex(start_index);
	}

	int index_span = 30;
	for (int index = 0; index < this->mesh.getNumVertices() - 360; index += index_span) {

		this->mesh.addIndex(index);
		this->mesh.addIndex(index + 360);
	}
}

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

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

	this->mesh.drawWireframe();

	this->cam.end();
}

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

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

#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(30);

ofSetWindowTitle("openframeworks");

ofBackground(0);

ofSetColor(255);

ofEnableDepthTest();

ofSetLineWidth(2);

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

}

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

void ofApp::update() {

ofSeedRandom(39);

this->mesh.clear();

auto noise_param = glm::vec3(ofRandom(360), ofRandom(360), ofRandom(360));

for (int radius = 50; radius <= 300; radius += 30) {

auto rotation = glm::vec3(

ofMap(ofNoise(noise_param.x, radius * 0.00065 - ofGetFrameNum() * 0.008), 0, 1, -360, 360),

ofMap(ofNoise(noise_param.y, radius * 0.00065 - ofGetFrameNum() * 0.008), 0, 1, -360, 360),

ofMap(ofNoise(noise_param.z, radius * 0.00065 - ofGetFrameNum() * 0.008), 0, 1, -360, 360));

int start_index = this->mesh.getNumVertices();

int index = start_index;

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

auto vertex = glm::vec3(radius * cos(deg * DEG_TO_RAD), radius * sin(deg * DEG_TO_RAD), 0);

auto rotation_x = glm::rotate(glm::mat4(), rotation.x * (float)DEG_TO_RAD, glm::vec3(1, 0, 0));

auto rotation_y = glm::rotate(glm::mat4(), rotation.y * (float)DEG_TO_RAD, glm::vec3(0, 1, 0));

auto rotation_z = glm::rotate(glm::mat4(), rotation.z * (float)DEG_TO_RAD, glm::vec3(0, 0, 1));

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

this->mesh.addVertex(vertex);

if (deg > 0) {

this->mesh.addIndex(index - 1);

this->mesh.addIndex(index);

}

index++;

}

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

this->mesh.addIndex(start_index);

}

int index_span = 30;

for (int index = 0; index < this->mesh.getNumVertices() - 360; index += index_span) {

this->mesh.addIndex(index);

this->mesh.addIndex(index + 360);

}

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

void ofApp::draw() {

this->cam.begin();

ofRotateY(ofGetFrameNum());

this->mesh.drawWireframe();

this->cam.end();

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20221015

2022年10月14日

Random walkers. Draw by openFrameworks

[ Video ]

[ About ]
ランダム・ウォーカー。

[ 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(0);
	ofEnableBlendMode(ofBlendMode::OF_BLENDMODE_ADD);
}

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

	ofSeedRandom(39);
}

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

	ofTranslate(ofGetWindowSize() * 0.5);

	for (int i = 0; i < 23; i++) {

		auto noise_seed = glm::vec2(ofRandom(1000), ofRandom(1000));
		int span = 1;
		int len = ofRandom(1, span);

		for (int k = 0; k < 18; k += span) {

			ofSetColor(255, ofMap(abs(9 - k), 0, 9, 0, 255));

			auto location = glm::vec2(
				ofMap(ofNoise(noise_seed.x, (ofGetFrameNum() + k) * 0.008), 0, 1, -350, 350),
				ofMap(ofNoise(noise_seed.y, (ofGetFrameNum() + k) * 0.008), 0, 1, -350, 350));

			auto next = glm::vec2(
				ofMap(ofNoise(noise_seed.x, (ofGetFrameNum() + k + len) * 0.008), 0, 1, -350, 350),
				ofMap(ofNoise(noise_seed.y, (ofGetFrameNum() + k + len) * 0.008), 0, 1, -350, 350));

			ofDrawLine(location, next);

			ofSetColor(255);
			if (k == 9) {

				ofDrawCircle(location, 2);
			}
		}
	}
}

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

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

#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(30);

ofSetWindowTitle("openframeworks");

ofBackground(0);

ofEnableBlendMode(ofBlendMode::OF_BLENDMODE_ADD);

}

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

void ofApp::update() {

ofSeedRandom(39);

}

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

void ofApp::draw() {

ofTranslate(ofGetWindowSize() * 0.5);

for (int i = 0; i < 23; i++) {

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

int span = 1;

int len = ofRandom(1, span);

for (int k = 0; k < 18; k += span) {

ofSetColor(255, ofMap(abs(9 - k), 0, 9, 0, 255));

auto location = glm::vec2(

ofMap(ofNoise(noise_seed.x, (ofGetFrameNum() + k) * 0.008), 0, 1, -350, 350),

ofMap(ofNoise(noise_seed.y, (ofGetFrameNum() + k) * 0.008), 0, 1, -350, 350));

auto next = glm::vec2(

ofMap(ofNoise(noise_seed.x, (ofGetFrameNum() + k + len) * 0.008), 0, 1, -350, 350),

ofMap(ofNoise(noise_seed.y, (ofGetFrameNum() + k + len) * 0.008), 0, 1, -350, 350));

ofDrawLine(location, next);

ofSetColor(255);

if (k == 9) {

ofDrawCircle(location, 2);

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20221014

2022年10月13日2022年10月13日

Inhale. Draw by openFrameworks

[ Video ]

[ About ]
吸引。

[ 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(0);
	ofSetLineWidth(1.5);
}

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

}

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

	ofTranslate(ofGetWindowSize() * 0.5);

	for (int deg = 0; deg < 360; deg += 15) {

		ofPushMatrix();
		ofRotate(deg);

		for (int x = -360; x < 360; x += 1) {

			auto a = ofMap(abs(x), 0, 360, 255, 0);
			auto y = ofMap(ofNoise(abs(x) * 0.05 + ofGetFrameNum() * 0.25), 0, 1, -30, 30);
			auto next_y = ofMap(ofNoise(abs(x + 1) * 0.05 + ofGetFrameNum() * 0.25), 0, 1, -30, 30);

			ofSetColor(255, a);
			ofDrawLine(x, y, x + 1, next_y);
		}

		ofPopMatrix();
	}
}

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

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

#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(30);

ofSetWindowTitle("openFrameworks");

ofBackground(0);

ofSetLineWidth(1.5);

}

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

void ofApp::update() {

}

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

void ofApp::draw() {

ofTranslate(ofGetWindowSize() * 0.5);

for (int deg = 0; deg < 360; deg += 15) {

ofPushMatrix();

ofRotate(deg);

for (int x = -360; x < 360; x += 1) {

auto a = ofMap(abs(x), 0, 360, 255, 0);

auto y = ofMap(ofNoise(abs(x) * 0.05 + ofGetFrameNum() * 0.25), 0, 1, -30, 30);

auto next_y = ofMap(ofNoise(abs(x + 1) * 0.05 + ofGetFrameNum() * 0.25), 0, 1, -30, 30);

ofSetColor(255, a);

ofDrawLine(x, y, x + 1, next_y);

}

ofPopMatrix();

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20221013

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