noise – ページ 31 – プログラミング de 落描き

2023年4月15日

hemisphere. Draw by openFrameworks

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[ About ]
半球。

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#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 face, frame;
};

#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 face, frame;

};

#include "ofApp.h"

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

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

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

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

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

	ofSeedRandom(39);

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

	int radius = 250;
	float phi_deg_step = 10;
	float theta_deg_step = 3;

	for (float phi_deg = 0; phi_deg < 360; phi_deg += phi_deg_step) {

		for (float theta_deg = 0; theta_deg < 180; theta_deg += theta_deg_step) {

			auto index = this->face.getNumVertices();
			vector<glm::vec3> vertices;

			vertices.push_back(glm::vec3(
				radius * sin((theta_deg - theta_deg_step * 0.5) * DEG_TO_RAD) * cos((phi_deg + phi_deg_step * 0.5) * DEG_TO_RAD),
				radius * sin((theta_deg - theta_deg_step * 0.5) * DEG_TO_RAD) * sin((phi_deg + phi_deg_step * 0.5) * DEG_TO_RAD),
				radius * cos((theta_deg - theta_deg_step * 0.5) * DEG_TO_RAD)));
			vertices.push_back(glm::vec3(
				radius * sin((theta_deg - theta_deg_step * 0.5) * DEG_TO_RAD) * cos((phi_deg - phi_deg_step * 0.5) * DEG_TO_RAD),
				radius * sin((theta_deg - theta_deg_step * 0.5) * DEG_TO_RAD) * sin((phi_deg - phi_deg_step * 0.5) * DEG_TO_RAD),
				radius * cos((theta_deg - theta_deg_step * 0.5) * DEG_TO_RAD)));
			vertices.push_back(glm::vec3(
				radius * sin((theta_deg + theta_deg_step * 0.5) * DEG_TO_RAD) * cos((phi_deg + phi_deg_step * 0.5) * DEG_TO_RAD),
				radius * sin((theta_deg + theta_deg_step * 0.5) * DEG_TO_RAD) * sin((phi_deg + phi_deg_step * 0.5) * DEG_TO_RAD),
				radius * cos((theta_deg + theta_deg_step * 0.5) * DEG_TO_RAD)));
			vertices.push_back(glm::vec3(
				radius * sin((theta_deg + theta_deg_step * 0.5) * DEG_TO_RAD) * cos((phi_deg - phi_deg_step * 0.5) * DEG_TO_RAD),
				radius * sin((theta_deg + theta_deg_step * 0.5) * DEG_TO_RAD) * sin((phi_deg - phi_deg_step * 0.5) * DEG_TO_RAD),
				radius * cos((theta_deg + theta_deg_step * 0.5) * DEG_TO_RAD)));

			for (auto& vertex : vertices) {

				if (vertex.z > 0) {

					vertex.z = 0;
					auto noise_value = ofNoise(vertex.x * 0.01, vertex.y * 0.01, ofGetFrameNum() * 0.02);
					auto len = glm::length(vertex);
					if (noise_value > 0.35) {

						vertex.z = ofMap(noise_value, 0.35, 1, 0, 300) * ofMap(len, 0, radius, 1, 0);
					}
				}
			}

			this->face.addVertices(vertices);

			for (auto& vertex : vertices) {

				if (vertex.z > 0) {

					vertex.z += 0.1;
				}
			}

			this->frame.addVertices(vertices);

			this->face.addIndex(index + 0); this->face.addIndex(index + 1); this->face.addIndex(index + 3);
			this->face.addIndex(index + 0); this->face.addIndex(index + 3); this->face.addIndex(index + 2);

			this->frame.addIndex(index + 0); this->frame.addIndex(index + 1);
			this->frame.addIndex(index + 0); this->frame.addIndex(index + 2);
			this->frame.addIndex(index + 3); this->frame.addIndex(index + 1);
			this->frame.addIndex(index + 3); this->frame.addIndex(index + 2);

			for (int i = index; i < this->face.getNumVertices(); i++) {

				auto color_value = this->face.getVertex(i).z > 0 ? ofMap(this->face.getVertex(i).z, 0, 300, 0, 39) : 0;
				this->face.addColor(ofColor(color_value));
				this->frame.addColor(ofColor(255));
			}
		}
	}
}

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

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

	this->face.draw();
	this->frame.draw();

	this->cam.end();
}

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

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

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#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(30);

ofSetWindowTitle("openFrameworks");

ofBackground(239);

ofEnableDepthTest();

ofSetLineWidth(1.5);

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

}

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

void ofApp::update() {

ofSeedRandom(39);

this->face.clear();

this->frame.clear();

int radius = 250;

float phi_deg_step = 10;

float theta_deg_step = 3;

for (float phi_deg = 0; phi_deg < 360; phi_deg += phi_deg_step) {

for (float theta_deg = 0; theta_deg < 180; theta_deg += theta_deg_step) {

auto index = this->face.getNumVertices();

vector<glm::vec3> vertices;

vertices.push_back(glm::vec3(

radius * sin((theta_deg - theta_deg_step * 0.5) * DEG_TO_RAD) * cos((phi_deg + phi_deg_step * 0.5) * DEG_TO_RAD),

radius * sin((theta_deg - theta_deg_step * 0.5) * DEG_TO_RAD) * sin((phi_deg + phi_deg_step * 0.5) * DEG_TO_RAD),

radius * cos((theta_deg - theta_deg_step * 0.5) * DEG_TO_RAD)));

vertices.push_back(glm::vec3(

radius * sin((theta_deg - theta_deg_step * 0.5) * DEG_TO_RAD) * cos((phi_deg - phi_deg_step * 0.5) * DEG_TO_RAD),

radius * sin((theta_deg - theta_deg_step * 0.5) * DEG_TO_RAD) * sin((phi_deg - phi_deg_step * 0.5) * DEG_TO_RAD),

radius * cos((theta_deg - theta_deg_step * 0.5) * DEG_TO_RAD)));

vertices.push_back(glm::vec3(

radius * sin((theta_deg + theta_deg_step * 0.5) * DEG_TO_RAD) * cos((phi_deg + phi_deg_step * 0.5) * DEG_TO_RAD),

radius * sin((theta_deg + theta_deg_step * 0.5) * DEG_TO_RAD) * sin((phi_deg + phi_deg_step * 0.5) * DEG_TO_RAD),

radius * cos((theta_deg + theta_deg_step * 0.5) * DEG_TO_RAD)));

vertices.push_back(glm::vec3(

radius * sin((theta_deg + theta_deg_step * 0.5) * DEG_TO_RAD) * cos((phi_deg - phi_deg_step * 0.5) * DEG_TO_RAD),

radius * sin((theta_deg + theta_deg_step * 0.5) * DEG_TO_RAD) * sin((phi_deg - phi_deg_step * 0.5) * DEG_TO_RAD),

radius * cos((theta_deg + theta_deg_step * 0.5) * DEG_TO_RAD)));

for (auto& vertex : vertices) {

if (vertex.z > 0) {

vertex.z = 0;

auto noise_value = ofNoise(vertex.x * 0.01, vertex.y * 0.01, ofGetFrameNum() * 0.02);

auto len = glm::length(vertex);

if (noise_value > 0.35) {

vertex.z = ofMap(noise_value, 0.35, 1, 0, 300) * ofMap(len, 0, radius, 1, 0);

}

this->face.addVertices(vertices);

for (auto& vertex : vertices) {

if (vertex.z > 0) {

vertex.z += 0.1;

}

this->frame.addVertices(vertices);

this->face.addIndex(index + 0); this->face.addIndex(index + 1); this->face.addIndex(index + 3);

this->face.addIndex(index + 0); this->face.addIndex(index + 3); this->face.addIndex(index + 2);

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

this->frame.addIndex(index + 0); this->frame.addIndex(index + 2);

this->frame.addIndex(index + 3); this->frame.addIndex(index + 1);

this->frame.addIndex(index + 3); this->frame.addIndex(index + 2);

for (int i = index; i < this->face.getNumVertices(); i++) {

auto color_value = this->face.getVertex(i).z > 0 ? ofMap(this->face.getVertex(i).z, 0, 300, 0, 39) : 0;

this->face.addColor(ofColor(color_value));

this->frame.addColor(ofColor(255));

}

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

void ofApp::draw() {

this->cam.begin();

ofRotateZ(ofGetFrameNum());

this->face.draw();

this->frame.draw();

this->cam.end();

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20230415

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2023年4月14日

Add terminate. Draw by openFrameworks

[ Video ]

[ About ]
終端を追加。

[ 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) {};
};

#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) {};

};

#include "ofApp.h"	

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

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

	ofBackground(239);
	ofSetColor(0);
	ofNoFill();
	ofSetLineWidth(3);
}

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

	ofSeedRandom(39);
}

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

	int span = 30;
	int radius = 8;
	for (int x = span * 1.5; x <= ofGetWindowWidth() - span * 1.5; x += span) {

		for (int y = span * 1.5; y <= ofGetWindowHeight() - span * 1.5; y += span) {

			bool flag = ofNoise(x * 0.01, y * 0.01, ofGetFrameNum() * 0.003) < 0.5 ? true : false;

			if (flag) {

				ofDrawLine(x - span * 0.5, y, x + span * 0.5, y);

				bool left_flag = ofNoise((x - span) * 0.01, y * 0.01, ofGetFrameNum() * 0.003) < 0.5 ? true : false;
				if (left_flag == false || x == span * 1.5) {

					ofBeginShape();
					for (int deg = 90; deg <= 270; deg += 90) {

						ofVertex(x - span * 0.4 + radius * cos(deg * DEG_TO_RAD), y + radius * sin(deg * DEG_TO_RAD));
					}
					ofEndShape();
				}

				bool right_flag = ofNoise((x + span) * 0.01, y * 0.01, ofGetFrameNum() * 0.003) < 0.5 ? true : false;
				if (right_flag == false || x == ofGetWindowWidth() - span * 1.5) {

					ofBeginShape();
					for (int deg = 270; deg <= 450; deg += 90) {

						ofVertex(x + span * 0.4 + radius * cos(deg * DEG_TO_RAD), y + radius * sin(deg * DEG_TO_RAD));
					}
					ofEndShape();
				}

			}
			else {

				ofDrawLine(x, y - span * 0.5, x, y + span * 0.5);

				bool top_flag = ofNoise(x * 0.01, (y - span) * 0.01, ofGetFrameNum() * 0.003) < 0.5 ? true : false;
				if (top_flag || y == span * 1.5) {

					ofBeginShape();
					for (int deg = 180; deg <= 360; deg += 90) {

						ofVertex(x + radius * cos(deg * DEG_TO_RAD), (y - span * 0.4) + radius * sin(deg * DEG_TO_RAD));
					}
					ofEndShape();
				}

				bool bottom_flag = ofNoise(x * 0.01, (y + span) * 0.01, ofGetFrameNum() * 0.003) < 0.5 ? true : false;
				if (bottom_flag || y == ofGetWindowHeight() - span * 1.5) {

					ofBeginShape();
					for (int deg = 0; deg <= 180; deg += 90) {

						ofVertex(x + radius * cos(deg * DEG_TO_RAD), (y + span * 0.4) + radius * sin(deg * DEG_TO_RAD));
					}
					ofEndShape();
				}

			}

		}
	}
}

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

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

#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(60);

ofSetWindowTitle("openFrameworks");

ofBackground(239);

ofSetColor(0);

ofNoFill();

ofSetLineWidth(3);

}

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

void ofApp::update() {

ofSeedRandom(39);

}

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

void ofApp::draw() {

int span = 30;

int radius = 8;

for (int x = span * 1.5; x <= ofGetWindowWidth() - span * 1.5; x += span) {

for (int y = span * 1.5; y <= ofGetWindowHeight() - span * 1.5; y += span) {

bool flag = ofNoise(x * 0.01, y * 0.01, ofGetFrameNum() * 0.003) < 0.5 ? true : false;

if (flag) {

ofDrawLine(x - span * 0.5, y, x + span * 0.5, y);

bool left_flag = ofNoise((x - span) * 0.01, y * 0.01, ofGetFrameNum() * 0.003) < 0.5 ? true : false;

if (left_flag == false || x == span * 1.5) {

ofBeginShape();

for (int deg = 90; deg <= 270; deg += 90) {

ofVertex(x - span * 0.4 + radius * cos(deg * DEG_TO_RAD), y + radius * sin(deg * DEG_TO_RAD));

}

ofEndShape();

}

bool right_flag = ofNoise((x + span) * 0.01, y * 0.01, ofGetFrameNum() * 0.003) < 0.5 ? true : false;

if (right_flag == false || x == ofGetWindowWidth() - span * 1.5) {

ofBeginShape();

for (int deg = 270; deg <= 450; deg += 90) {

ofVertex(x + span * 0.4 + radius * cos(deg * DEG_TO_RAD), y + radius * sin(deg * DEG_TO_RAD));

}

ofEndShape();

}

else {

ofDrawLine(x, y - span * 0.5, x, y + span * 0.5);

bool top_flag = ofNoise(x * 0.01, (y - span) * 0.01, ofGetFrameNum() * 0.003) < 0.5 ? true : false;

if (top_flag || y == span * 1.5) {

ofBeginShape();

for (int deg = 180; deg <= 360; deg += 90) {

ofVertex(x + radius * cos(deg * DEG_TO_RAD), (y - span * 0.4) + radius * sin(deg * DEG_TO_RAD));

}

ofEndShape();

}

bool bottom_flag = ofNoise(x * 0.01, (y + span) * 0.01, ofGetFrameNum() * 0.003) < 0.5 ? true : false;

if (bottom_flag || y == ofGetWindowHeight() - span * 1.5) {

ofBeginShape();

for (int deg = 0; deg <= 180; deg += 90) {

ofVertex(x + radius * cos(deg * DEG_TO_RAD), (y + span * 0.4) + radius * sin(deg * DEG_TO_RAD));

}

ofEndShape();

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
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2023年4月13日

vertical or horizontal. draw by openframeworks

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[ About ]
縦か横。

[ 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) {};
};

#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) {};

};

#include "ofApp.h"	

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

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

	ofBackground(39);
	ofSetColor(239);
	ofSetLineWidth(3);
}

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

	ofSeedRandom(39);
}

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

	int span = 30;
	for (int x = span * 1.5; x <= ofGetWindowWidth() - span * 1.5; x += span) {

		for (int y = span * 1.5; y <= ofGetWindowHeight() - span * 1.5; y += span) {

			bool flag = ofNoise(x * 0.08, y * 0.08, ofGetFrameNum() * 0.01) < 0.5 ? true : false;

			if (flag) {

				ofDrawLine(x - span * 0.5, y, x + span * 0.5, y);
			}
			else {

				ofDrawLine(x, y - span * 0.5, x, y + span * 0.5);
			}
		}
	}
}

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

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

#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(60);

ofSetWindowTitle("openFrameworks");

ofBackground(39);

ofSetColor(239);

ofSetLineWidth(3);

}

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

void ofApp::update() {

ofSeedRandom(39);

}

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

void ofApp::draw() {

int span = 30;

for (int x = span * 1.5; x <= ofGetWindowWidth() - span * 1.5; x += span) {

for (int y = span * 1.5; y <= ofGetWindowHeight() - span * 1.5; y += span) {

bool flag = ofNoise(x * 0.08, y * 0.08, ofGetFrameNum() * 0.01) < 0.5 ? true : false;

if (flag) {

ofDrawLine(x - span * 0.5, y, x + span * 0.5, y);

}

else {

ofDrawLine(x, y - span * 0.5, x, y + span * 0.5);

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20230413

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2024年4月
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