openframeworks – ページ 217 – プログラミング de 落描き

2021年11月19日2021年11月19日

1800.

[ Video ]

[ About ]
2016/12/16に開始したSNSへのプログラミング落書き投稿が、途切れることなく1,800日に達しました。
これまでの皆様の様々なご支援に心より感謝申し上げます。

We have reached 1,800 days of uninterrupted programming doodle posts to the SNS since we started on 12/16/2016.
We would like to thank everyone for their various support so far.

[ Source ]

#pragma once
#include "ofMain.h"

class Actor {
public:
	Actor(vector<glm::vec3>& location_list, vector<vector<int>>& next_index_list, vector<int>& destination_list);
	void update(const int& frame_span, vector<glm::vec3>& location_list, vector<vector<int>>& next_index_list, vector<int>& destination_list);
	glm::vec3 getLocation();
	deque<glm::vec3> getLog();
	void setColor(ofColor color);
	ofColor getColor();

private:

	int select_index;
	int next_index;

	glm::vec3 location;
	deque<glm::vec3> log;
	ofColor color;
};

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) {};

	vector<glm::vec3> location_list;
	vector<vector<int>> next_index_list;
	vector<int> destination_list;

	vector<unique_ptr<Actor>> actor_list;

	ofTrueTypeFont font;
};

#pragma once

#include "ofMain.h"

class Actor {

public:

Actor(vector<glm::vec3>& location_list, vector<vector<int>>& next_index_list, vector<int>& destination_list);

void update(const int& frame_span, vector<glm::vec3>& location_list, vector<vector<int>>& next_index_list, vector<int>& destination_list);

glm::vec3 getLocation();

deque<glm::vec3> getLog();

void setColor(ofColor color);

ofColor getColor();

private:

int select_index;

int next_index;

glm::vec3 location;

deque<glm::vec3> log;

ofColor color;

};

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) {};

vector<glm::vec3> location_list;

vector<vector<int>> next_index_list;

vector<int> destination_list;

vector<unique_ptr<Actor>> actor_list;

ofTrueTypeFont font;

};

#include "ofApp.h"	

//--------------------------------------------------------------
Actor::Actor(vector<glm::vec3>& location_list, vector<vector<int>>& next_index_list, vector<int>& destination_list) {

	this->select_index = ofRandom(location_list.size());
	while (true) {

		auto itr = find(destination_list.begin(), destination_list.end(), this->select_index);
		if (itr == destination_list.end()) {

			destination_list.push_back(this->select_index);
			break;
		}

		this->select_index = (this->select_index + 1) % location_list.size();
	}

	this->next_index = this->select_index;
}

//--------------------------------------------------------------
void Actor::update(const int& frame_span, vector<glm::vec3>& location_list, vector<vector<int>>& next_index_list, vector<int>& destination_list) {

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

		auto tmp_index = this->select_index;
		this->select_index = this->next_index;
		int retry = next_index_list[this->select_index].size();
		this->next_index = next_index_list[this->select_index][(int)ofRandom(next_index_list[this->select_index].size())];
		while (--retry > 0) {

			auto destination_itr = find(destination_list.begin(), destination_list.end(), this->next_index);
			if (destination_itr == destination_list.end()) {

				if (tmp_index != this->next_index) {

					destination_list.push_back(this->next_index);
					break;
				}
			}

			this->next_index = next_index_list[this->select_index][(this->next_index + 1) % next_index_list[this->select_index].size()];
		}
		if (retry <= 0) {

			destination_list.push_back(this->select_index);
			this->next_index = this->select_index;
		}
	}

	auto param = ofGetFrameNum() % frame_span;
	auto distance = location_list[this->next_index] - location_list[this->select_index];
	this->location = location_list[this->select_index] + distance / frame_span * param;

	this->log.push_front(this->location);
	while (this->log.size() > 10) { this->log.pop_back(); }
}

//--------------------------------------------------------------
glm::vec3 Actor::getLocation() {

	return this->location;
}

//--------------------------------------------------------------
deque<glm::vec3> Actor::getLog() {

	return this->log;
}

//--------------------------------------------------------------
void Actor::setColor(ofColor color) {

	this->color = color;
}

//--------------------------------------------------------------
ofColor Actor::getColor() {

	return this->color;
}


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

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

	ofBackground(0);
	ofSetRectMode(ofRectMode::OF_RECTMODE_CENTER);

	ofSeedRandom(39);

	ofFbo fbo;
	ofPixels pixels;
	fbo.allocate(ofGetWidth(), ofGetHeight());
	fbo.begin();
	ofClear(0);

	this->font.loadFont("fonts/Kazesawa-bold.ttf", 300, true, true, true);
	string word = "18";
	this->font.drawString(word, ofGetWidth() * 0.5 - font.stringWidth(word) * 0.5, ofGetHeight() * 0.5 - font.stringHeight(word) * 0.05);
	word = "00";
	this->font.drawString(word, ofGetWidth() * 0.5 - font.stringWidth(word) * 0.5, ofGetHeight() * 0.5 + font.stringHeight(word) * 1.05);

	fbo.end();
	fbo.readToPixels(pixels);

	ofColor pix_color;
	int span = 16;
	for (float x = 0 + span * 0.5; x < ofGetWidth(); x += span) {

		for (float y = 0 + span * 0.5; y <= ofGetHeight(); y += span) {

			pix_color = pixels.getColor(x, y);
			if (pix_color != ofColor(0, 0)) {

				this->location_list.push_back(glm::vec3(x - ofGetWidth() * 0.5, y - ofGetHeight() * 0.5, 0));
			}
		}
	}

	for (auto& location : this->location_list) {

		vector<int> next_index = vector<int>();
		int index = -1;
		for (auto& other : this->location_list) {

			index++;
			if (location == other) { continue; }

			float distance = glm::distance(location, other);
			if (distance <= span) {

				next_index.push_back(index);
			}
		}

		this->next_index_list.push_back(next_index);
	}

	ofColor color;
	vector<int> hex_list = { 0xaaff00, 0xffaa00, 0xff00aa, 0xaa00ff, 0x00aaff };
	vector<ofColor> base_color_list;
	for (auto hex : hex_list) {

		color.setHex(hex);
		base_color_list.push_back(color);
	}

	for (int i = 0; i < 500; i++) {

		this->actor_list.push_back(make_unique<Actor>(this->location_list, this->next_index_list, this->destination_list));
		this->actor_list.back()->setColor(base_color_list[(int)ofRandom(base_color_list.size())]);
	}
}

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

	int frame_span = 10;
	int prev_index_size = 0;

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

		prev_index_size = this->destination_list.size();
	}

	for (auto& actor : this->actor_list) {

		actor->update(frame_span, this->location_list, this->next_index_list, this->destination_list);
	}

	if (prev_index_size != 0) {

		this->destination_list.erase(this->destination_list.begin(), this->destination_list.begin() + prev_index_size);
	}
}

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

	ofTranslate(ofGetWidth() * 0.5, ofGetHeight() * 0.5);

	ofSetColor(128, 128);
	ofSetLineWidth(1);
	for (auto& location : this->location_list) {

		ofDrawCircle(location, 2);
	}

	ofSetLineWidth(3);
	for (auto& actor : this->actor_list) {

		// 非常に手抜きな実装。
		// 枠があれば、きっとカッコいいけど、今日はここまで。
		ofSetColor(actor->getColor());
		for (auto& l : actor->getLog()) {

			//ofDrawRectangle(l, 10, 10);
			ofDrawCircle(l, 5);
		}
	}
}


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

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

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#include "ofApp.h"

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

Actor::Actor(vector<glm::vec3>& location_list, vector<vector<int>>& next_index_list, vector<int>& destination_list) {

this->select_index = ofRandom(location_list.size());

while (true) {

auto itr = find(destination_list.begin(), destination_list.end(), this->select_index);

if (itr == destination_list.end()) {

destination_list.push_back(this->select_index);

break;

}

this->select_index = (this->select_index + 1) % location_list.size();

}

this->next_index = this->select_index;

}

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

void Actor::update(const int& frame_span, vector<glm::vec3>& location_list, vector<vector<int>>& next_index_list, vector<int>& destination_list) {

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

auto tmp_index = this->select_index;

this->select_index = this->next_index;

int retry = next_index_list[this->select_index].size();

this->next_index = next_index_list[this->select_index][(int)ofRandom(next_index_list[this->select_index].size())];

while (--retry > 0) {

auto destination_itr = find(destination_list.begin(), destination_list.end(), this->next_index);

if (destination_itr == destination_list.end()) {

if (tmp_index != this->next_index) {

destination_list.push_back(this->next_index);

break;

}

this->next_index = next_index_list[this->select_index][(this->next_index + 1) % next_index_list[this->select_index].size()];

}

if (retry <= 0) {

destination_list.push_back(this->select_index);

this->next_index = this->select_index;

}

auto param = ofGetFrameNum() % frame_span;

auto distance = location_list[this->next_index] - location_list[this->select_index];

this->location = location_list[this->select_index] + distance / frame_span * param;

this->log.push_front(this->location);

while (this->log.size() > 10) { this->log.pop_back(); }

}

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

glm::vec3 Actor::getLocation() {

return this->location;

}

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

deque<glm::vec3> Actor::getLog() {

return this->log;

}

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

void Actor::setColor(ofColor color) {

this->color = color;

}

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

ofColor Actor::getColor() {

return this->color;

}

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

void ofApp::setup() {

ofSetFrameRate(60);

ofSetWindowTitle("openFrameworks");

ofBackground(0);

ofSetRectMode(ofRectMode::OF_RECTMODE_CENTER);

ofSeedRandom(39);

ofFbo fbo;

ofPixels pixels;

fbo.allocate(ofGetWidth(), ofGetHeight());

fbo.begin();

ofClear(0);

this->font.loadFont("fonts/Kazesawa-bold.ttf", 300, true, true, true);

string word = "18";

this->font.drawString(word, ofGetWidth() * 0.5 - font.stringWidth(word) * 0.5, ofGetHeight() * 0.5 - font.stringHeight(word) * 0.05);

word = "00";

this->font.drawString(word, ofGetWidth() * 0.5 - font.stringWidth(word) * 0.5, ofGetHeight() * 0.5 + font.stringHeight(word) * 1.05);

fbo.end();

fbo.readToPixels(pixels);

ofColor pix_color;

int span = 16;

for (float x = 0 + span * 0.5; x < ofGetWidth(); x += span) {

for (float y = 0 + span * 0.5; y <= ofGetHeight(); y += span) {

pix_color = pixels.getColor(x, y);

if (pix_color != ofColor(0, 0)) {

this->location_list.push_back(glm::vec3(x - ofGetWidth() * 0.5, y - ofGetHeight() * 0.5, 0));

}

for (auto& location : this->location_list) {

vector<int> next_index = vector<int>();

int index = -1;

for (auto& other : this->location_list) {

index++;

if (location == other) { continue; }

float distance = glm::distance(location, other);

if (distance <= span) {

next_index.push_back(index);

}

this->next_index_list.push_back(next_index);

}

ofColor color;

vector<int> hex_list = { 0xaaff00, 0xffaa00, 0xff00aa, 0xaa00ff, 0x00aaff };

vector<ofColor> base_color_list;

for (auto hex : hex_list) {

color.setHex(hex);

base_color_list.push_back(color);

}

for (int i = 0; i < 500; i++) {

this->actor_list.push_back(make_unique<Actor>(this->location_list, this->next_index_list, this->destination_list));

this->actor_list.back()->setColor(base_color_list[(int)ofRandom(base_color_list.size())]);

}

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

void ofApp::update() {

int frame_span = 10;

int prev_index_size = 0;

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

prev_index_size = this->destination_list.size();

}

for (auto& actor : this->actor_list) {

actor->update(frame_span, this->location_list, this->next_index_list, this->destination_list);

}

if (prev_index_size != 0) {

this->destination_list.erase(this->destination_list.begin(), this->destination_list.begin() + prev_index_size);

}

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

void ofApp::draw() {

ofTranslate(ofGetWidth() * 0.5, ofGetHeight() * 0.5);

ofSetColor(128, 128);

ofSetLineWidth(1);

for (auto& location : this->location_list) {

ofDrawCircle(location, 2);

}

ofSetLineWidth(3);

for (auto& actor : this->actor_list) {

// 非常に手抜きな実装。

// 枠があれば、きっとカッコいいけど、今日はここまで。

ofSetColor(actor->getColor());

for (auto& l : actor->getLog()) {

//ofDrawRectangle(l, 10, 10);

ofDrawCircle(l, 5);

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

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https://github.com/junkiyoshi/Insta20211119

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2021年11月18日2021年11月18日

visible / unvisible and rotation. Draw by openFrameworks

[ Video ]

[ About ]
ノイズで可視化・非可視化と回転量をコントロールする。

Control visualization/de-visualization and amount of rotation with noise.

[ 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;
	vector<ofMeshFace> triangle_list;
	ofMesh mesh, 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;

vector<ofMeshFace> triangle_list;

ofMesh mesh, frame;

};

#include "ofApp.h"

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

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

	ofBackground(255);
	ofSetLineWidth(2);
	ofEnableDepthTest();

	auto ico_sphere = ofIcoSpherePrimitive(250, 3);
	this->triangle_list.insert(this->triangle_list.end(), ico_sphere.getMesh().getUniqueFaces().begin(), ico_sphere.getMesh().getUniqueFaces().end());
}

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

	ofSeedRandom(39);

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

	int radius = 300;

	for (int x = -radius * 2.5; x <= radius * 2.5; x += radius * 2.5) {

		for (int y = -radius * 2.5; y <= radius * 2.5; y += radius * 2.5) {

			for (int i = 0; i < this->triangle_list.size(); i++) {

				glm::vec3 avg = (this->triangle_list[i].getVertex(0) + this->triangle_list[i].getVertex(1) + this->triangle_list[i].getVertex(2)) / 3;
				auto noise_value = ofNoise(x + avg.x * 0.0025 + ofGetFrameNum() * 0.003, (y + avg.y) * 0.0025, avg.z * 0.0025);

				if (noise_value < 0.45) { noise_value = 0; }
				else if (noise_value > 0.55) { noise_value = 1; }
				else { noise_value = ofMap(noise_value, 0.45, 0.55, 0, 1); }

				vector<glm::vec3> vertices;

				vertices.push_back(glm::normalize(this->triangle_list[i].getVertex(0)) * (radius + 5) - avg);
				vertices.push_back(glm::normalize(this->triangle_list[i].getVertex(1)) * (radius + 5) - avg);
				vertices.push_back(glm::normalize(this->triangle_list[i].getVertex(2)) * (radius + 5) - avg);

				vertices.push_back(glm::normalize(this->triangle_list[i].getVertex(0)) * (radius - 5) - avg);
				vertices.push_back(glm::normalize(this->triangle_list[i].getVertex(1)) * (radius - 5) - avg);
				vertices.push_back(glm::normalize(this->triangle_list[i].getVertex(2)) * (radius - 5) - avg);

				for (auto& vertex : vertices) {

					vertex *= noise_value;
					vertex += avg;

					auto rotation_x = glm::rotate(glm::mat4(), ofMap(ofNoise(glm::vec2(y * 0.007, (x + vertex.x) * 0.0007 + ofGetFrameNum() * 0.0035)), 0, 1, -180, 180) * (float)DEG_TO_RAD, glm::vec3(1, 0, 0));
					vertex = glm::vec4(vertex, 0) * rotation_x + glm::vec4(x, y, 0, 0);
				}

				this->mesh.addVertices(vertices);
				this->frame.addVertices(vertices);

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

				this->mesh.addColor(ofColor(0));
				this->mesh.addColor(ofColor(0));
				this->mesh.addColor(ofColor(0));

				this->frame.addColor(ofColor(0));
				this->frame.addColor(ofColor(0));
				this->frame.addColor(ofColor(0));

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

				this->mesh.addTriangle(this->mesh.getNumVertices() - 1, this->mesh.getNumVertices() - 2, this->mesh.getNumVertices() - 3);
				this->mesh.addTriangle(this->mesh.getNumVertices() - 4, this->mesh.getNumVertices() - 5, this->mesh.getNumVertices() - 6);

				this->mesh.addTriangle(this->mesh.getNumVertices() - 1, this->mesh.getNumVertices() - 2, this->mesh.getNumVertices() - 5);
				this->mesh.addTriangle(this->mesh.getNumVertices() - 1, this->mesh.getNumVertices() - 5, this->mesh.getNumVertices() - 4);

				this->mesh.addTriangle(this->mesh.getNumVertices() - 1, this->mesh.getNumVertices() - 3, this->mesh.getNumVertices() - 6);
				this->mesh.addTriangle(this->mesh.getNumVertices() - 1, this->mesh.getNumVertices() - 6, this->mesh.getNumVertices() - 4);

				this->mesh.addTriangle(this->mesh.getNumVertices() - 2, this->mesh.getNumVertices() - 3, this->mesh.getNumVertices() - 6);
				this->mesh.addTriangle(this->mesh.getNumVertices() - 2, this->mesh.getNumVertices() - 6, this->mesh.getNumVertices() - 5);

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

				this->frame.addIndex(this->frame.getNumVertices() - 4); this->frame.addIndex(this->frame.getNumVertices() - 5);
				this->frame.addIndex(this->frame.getNumVertices() - 5); this->frame.addIndex(this->frame.getNumVertices() - 6);
				this->frame.addIndex(this->frame.getNumVertices() - 4); this->frame.addIndex(this->frame.getNumVertices() - 6);

				this->frame.addIndex(this->frame.getNumVertices() - 1); this->frame.addIndex(this->frame.getNumVertices() - 4);
				this->frame.addIndex(this->frame.getNumVertices() - 2); this->frame.addIndex(this->frame.getNumVertices() - 5);
				this->frame.addIndex(this->frame.getNumVertices() - 3); this->frame.addIndex(this->frame.getNumVertices() - 6);
			}
		}
	}
}

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

	this->cam.begin();

	this->mesh.drawFaces();
	this->frame.drawWireframe();

	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(255);

ofSetLineWidth(2);

ofEnableDepthTest();

auto ico_sphere = ofIcoSpherePrimitive(250, 3);

this->triangle_list.insert(this->triangle_list.end(), ico_sphere.getMesh().getUniqueFaces().begin(), ico_sphere.getMesh().getUniqueFaces().end());

}

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

void ofApp::update() {

ofSeedRandom(39);

this->mesh.clear();

this->frame.clear();

int radius = 300;

for (int x = -radius * 2.5; x <= radius * 2.5; x += radius * 2.5) {

for (int y = -radius * 2.5; y <= radius * 2.5; y += radius * 2.5) {

for (int i = 0; i < this->triangle_list.size(); i++) {

glm::vec3 avg = (this->triangle_list[i].getVertex(0) + this->triangle_list[i].getVertex(1) + this->triangle_list[i].getVertex(2)) / 3;

auto noise_value = ofNoise(x + avg.x * 0.0025 + ofGetFrameNum() * 0.003, (y + avg.y) * 0.0025, avg.z * 0.0025);

if (noise_value < 0.45) { noise_value = 0; }

else if (noise_value > 0.55) { noise_value = 1; }

else { noise_value = ofMap(noise_value, 0.45, 0.55, 0, 1); }

vector<glm::vec3> vertices;

vertices.push_back(glm::normalize(this->triangle_list[i].getVertex(0)) * (radius + 5) - avg);

vertices.push_back(glm::normalize(this->triangle_list[i].getVertex(1)) * (radius + 5) - avg);

vertices.push_back(glm::normalize(this->triangle_list[i].getVertex(2)) * (radius + 5) - avg);

vertices.push_back(glm::normalize(this->triangle_list[i].getVertex(0)) * (radius - 5) - avg);

vertices.push_back(glm::normalize(this->triangle_list[i].getVertex(1)) * (radius - 5) - avg);

vertices.push_back(glm::normalize(this->triangle_list[i].getVertex(2)) * (radius - 5) - avg);

for (auto& vertex : vertices) {

vertex *= noise_value;

vertex += avg;

auto rotation_x = glm::rotate(glm::mat4(), ofMap(ofNoise(glm::vec2(y * 0.007, (x + vertex.x) * 0.0007 + ofGetFrameNum() * 0.0035)), 0, 1, -180, 180) * (float)DEG_TO_RAD, glm::vec3(1, 0, 0));

vertex = glm::vec4(vertex, 0) * rotation_x + glm::vec4(x, y, 0, 0);

}

this->mesh.addVertices(vertices);

this->frame.addVertices(vertices);

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

this->mesh.addColor(ofColor(0));

this->frame.addColor(ofColor(0));

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

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

this->mesh.addTriangle(this->mesh.getNumVertices() - 4, this->mesh.getNumVertices() - 5, this->mesh.getNumVertices() - 6);

this->mesh.addTriangle(this->mesh.getNumVertices() - 1, this->mesh.getNumVertices() - 2, this->mesh.getNumVertices() - 5);

this->mesh.addTriangle(this->mesh.getNumVertices() - 1, this->mesh.getNumVertices() - 5, this->mesh.getNumVertices() - 4);

this->mesh.addTriangle(this->mesh.getNumVertices() - 1, this->mesh.getNumVertices() - 3, this->mesh.getNumVertices() - 6);

this->mesh.addTriangle(this->mesh.getNumVertices() - 1, this->mesh.getNumVertices() - 6, this->mesh.getNumVertices() - 4);

this->mesh.addTriangle(this->mesh.getNumVertices() - 2, this->mesh.getNumVertices() - 3, this->mesh.getNumVertices() - 6);

this->mesh.addTriangle(this->mesh.getNumVertices() - 2, this->mesh.getNumVertices() - 6, this->mesh.getNumVertices() - 5);

this->frame.addIndex(this->frame.getNumVertices() - 1); this->frame.addIndex(this->frame.getNumVertices() - 2);

this->frame.addIndex(this->frame.getNumVertices() - 2); this->frame.addIndex(this->frame.getNumVertices() - 3);

this->frame.addIndex(this->frame.getNumVertices() - 1); this->frame.addIndex(this->frame.getNumVertices() - 3);

this->frame.addIndex(this->frame.getNumVertices() - 4); this->frame.addIndex(this->frame.getNumVertices() - 5);

this->frame.addIndex(this->frame.getNumVertices() - 5); this->frame.addIndex(this->frame.getNumVertices() - 6);

this->frame.addIndex(this->frame.getNumVertices() - 4); this->frame.addIndex(this->frame.getNumVertices() - 6);

this->frame.addIndex(this->frame.getNumVertices() - 1); this->frame.addIndex(this->frame.getNumVertices() - 4);

this->frame.addIndex(this->frame.getNumVertices() - 2); this->frame.addIndex(this->frame.getNumVertices() - 5);

this->frame.addIndex(this->frame.getNumVertices() - 3); this->frame.addIndex(this->frame.getNumVertices() - 6);

}

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

void ofApp::draw() {

this->cam.begin();

this->mesh.drawFaces();

this->frame.drawWireframe();

this->cam.end();

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20211118

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2021年11月16日2021年11月16日

How animation by noise works. Draw by openFrameworks

[ Video ]

[ About ]
多角形の数、回転、色がノイズの値で変化する事を可視化。

Visualize that the number, rotation, and color of polygons change with the value of noise.

[ 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(60);
	ofSetWindowTitle("openFrameworks");

	ofBackground(255);
	ofSetRectMode(ofRectMode::OF_RECTMODE_CENTER);

	ofSetCircleResolution(36);
}

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

	ofSeedRandom(39);
}

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

	ofTranslate(ofGetWindowSize() * 0.5);

	auto noise_seed = glm::vec3(ofRandom(1000), ofRandom(1000), ofRandom(1000));
	int tmp_x, tmp_y;

	ofSetLineWidth(2);
	ofSetColor(0);

	// Param 1
	ofBeginShape();
	for (int x = 340; x >= 120; x -= 1) {

		tmp_y = ofMap(ofNoise(noise_seed.x, x * 0.005 + ofGetFrameNum() * 0.01), 0, 1, -100, 100);
		ofVertex(x, tmp_y);
	}
	ofEndShape();

	ofDrawLine(glm::vec2(120, -100), glm::vec2(120, 100));
	ofDrawLine(glm::vec2(340, -100), glm::vec2(340, 100));

	ofColor color;
	int hue = ofMap(ofNoise(noise_seed.x, 120 * 0.005 + ofGetFrameNum() * 0.01), 0, 1, 0, 255);
	color.setHsb(hue, 230, 255);

	ofSetColor(color);
	ofFill();
	ofDrawCircle(glm::vec2(120, tmp_y), 15);

	ofSetColor(0);
	ofNoFill();
	ofDrawCircle(glm::vec2(120, tmp_y), 15);

	// Param 2
	ofBeginShape();
	for (int x = -340; x <= -120; x += 1) {

		tmp_y = ofMap(ofNoise(noise_seed.y, x * 0.005 - ofGetFrameNum() * 0.01), 0, 1, -100, 100);
		ofVertex(x, tmp_y);
	}
	ofEndShape();

	ofDrawLine(glm::vec2(-120, -100), glm::vec2(-120, 100));
	ofDrawLine(glm::vec2(-340, -100), glm::vec2(-340, 100));

	int gon = ofMap(ofNoise(noise_seed.y, -120 * 0.005 - ofGetFrameNum() * 0.01), 0, 1, 3, 8);
	int deg_span = 360 / gon;

	ofSetColor(255);
	ofFill();
	ofBeginShape();
	for (int deg = 0; deg < 360; deg += deg_span) {

		ofVertex(glm::vec2(15 * cos(deg * DEG_TO_RAD), 15 * sin(deg * DEG_TO_RAD)) + glm::vec2(-120, tmp_y));
	}
	ofEndShape(true);

	ofSetColor(0);
	ofNoFill();
	ofBeginShape();
	for (int deg = 0; deg < 360; deg += deg_span) {

		ofVertex(glm::vec2(15 * cos(deg * DEG_TO_RAD), 15 * sin(deg * DEG_TO_RAD)) + glm::vec2(-120, tmp_y));
	}
	ofEndShape(true);
	
	// Param 3
	ofBeginShape();
	for (int y = -340; y <= -120; y += 1) {

		tmp_x = ofMap(ofNoise(noise_seed.z, y * 0.005 - ofGetFrameNum() * 0.01), 0, 1, -100, 100);
		ofVertex(tmp_x, y);
	}
	ofEndShape();

	ofDrawLine(glm::vec2(-100, -120), glm::vec2(100, -120));
	ofDrawLine(glm::vec2(-100, -340), glm::vec2(100, -340));

	int deg_start = ofMap(ofNoise(noise_seed.z, -120 * 0.005 - ofGetFrameNum() * 0.01), 0, 1, 0, 360);
	
	ofSetColor(255);
	ofFill();
	ofBeginShape();
	for (int deg = deg_start; deg < deg_start + 360; deg += 90) {

		ofVertex(glm::vec2(15 * cos(deg * DEG_TO_RAD), 15 * sin(deg * DEG_TO_RAD)) + glm::vec2(tmp_x, -120));
	}
	ofEndShape(true);

	ofSetColor(0);
	ofNoFill();
	ofBeginShape();
	for (int deg = deg_start; deg < deg_start + 360; deg += 90) {

		ofVertex(glm::vec2(15 * cos(deg * DEG_TO_RAD), 15 * sin(deg * DEG_TO_RAD)) + glm::vec2(tmp_x, -120));
	}
	ofEndShape(true);

	// Draw
	ofSetLineWidth(2);
	for (int y = 250; y > 0; y -= 10) {

		hue = ofMap(ofNoise(noise_seed.x, 120 * 0.005 + (ofGetFrameNum() - y / 5) * 0.01), 0, 1, 0, 255);
		color.setHsb(hue, 230, 255);

		gon = ofMap(ofNoise(noise_seed.y, -120 * 0.005 - (ofGetFrameNum() - y / 5) * 0.01), 0, 1, 3, 8);
		deg_span = 360 / gon;

		int deg_start = ofMap(ofNoise(noise_seed.z, -120 * 0.005 - (ofGetFrameNum() - y / 5) * 0.01), 0, 1, 0, 360);
		float alpha = ofMap(y, 320, 0, 0, 255);

		ofSetColor(color, alpha);
		ofFill();
		ofBeginShape();
		for (int deg = deg_start; deg <= deg_start + 360; deg += deg_span) {

			ofVertex(glm::vec2(85 * cos(deg * DEG_TO_RAD), 85 * sin(deg * DEG_TO_RAD)) + glm::vec2(0, y));
		}
		ofEndShape(true);

		ofSetColor(255, alpha);
		ofNoFill();
		ofBeginShape();
		for (int deg = deg_start; deg <= deg_start + 360; deg += deg_span) {

			ofVertex(glm::vec2(85 * cos(deg * DEG_TO_RAD), 85 * sin(deg * DEG_TO_RAD)) + glm::vec2(0, y));
		}
		ofEndShape(true);
	}
}

//--------------------------------------------------------------6
int main() {

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

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#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(60);

ofSetWindowTitle("openFrameworks");

ofBackground(255);

ofSetRectMode(ofRectMode::OF_RECTMODE_CENTER);

ofSetCircleResolution(36);

}

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

void ofApp::update() {

ofSeedRandom(39);

}

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

void ofApp::draw() {

ofTranslate(ofGetWindowSize() * 0.5);

auto noise_seed = glm::vec3(ofRandom(1000), ofRandom(1000), ofRandom(1000));

int tmp_x, tmp_y;

ofSetLineWidth(2);

ofSetColor(0);

// Param 1

ofBeginShape();

for (int x = 340; x >= 120; x -= 1) {

tmp_y = ofMap(ofNoise(noise_seed.x, x * 0.005 + ofGetFrameNum() * 0.01), 0, 1, -100, 100);

ofVertex(x, tmp_y);

}

ofEndShape();

ofDrawLine(glm::vec2(120, -100), glm::vec2(120, 100));

ofDrawLine(glm::vec2(340, -100), glm::vec2(340, 100));

ofColor color;

int hue = ofMap(ofNoise(noise_seed.x, 120 * 0.005 + ofGetFrameNum() * 0.01), 0, 1, 0, 255);

color.setHsb(hue, 230, 255);

ofSetColor(color);

ofFill();

ofDrawCircle(glm::vec2(120, tmp_y), 15);

ofSetColor(0);

ofNoFill();

ofDrawCircle(glm::vec2(120, tmp_y), 15);

// Param 2

ofBeginShape();

for (int x = -340; x <= -120; x += 1) {

tmp_y = ofMap(ofNoise(noise_seed.y, x * 0.005 - ofGetFrameNum() * 0.01), 0, 1, -100, 100);

ofVertex(x, tmp_y);

}

ofEndShape();

ofDrawLine(glm::vec2(-120, -100), glm::vec2(-120, 100));

ofDrawLine(glm::vec2(-340, -100), glm::vec2(-340, 100));

int gon = ofMap(ofNoise(noise_seed.y, -120 * 0.005 - ofGetFrameNum() * 0.01), 0, 1, 3, 8);

int deg_span = 360 / gon;

ofSetColor(255);

ofFill();

ofBeginShape();

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

ofVertex(glm::vec2(15 * cos(deg * DEG_TO_RAD), 15 * sin(deg * DEG_TO_RAD)) + glm::vec2(-120, tmp_y));

}

ofEndShape(true);

ofSetColor(0);

ofNoFill();

ofBeginShape();

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

ofVertex(glm::vec2(15 * cos(deg * DEG_TO_RAD), 15 * sin(deg * DEG_TO_RAD)) + glm::vec2(-120, tmp_y));

}

ofEndShape(true);

// Param 3

ofBeginShape();

for (int y = -340; y <= -120; y += 1) {

tmp_x = ofMap(ofNoise(noise_seed.z, y * 0.005 - ofGetFrameNum() * 0.01), 0, 1, -100, 100);

ofVertex(tmp_x, y);

}

ofEndShape();

ofDrawLine(glm::vec2(-100, -120), glm::vec2(100, -120));

ofDrawLine(glm::vec2(-100, -340), glm::vec2(100, -340));

int deg_start = ofMap(ofNoise(noise_seed.z, -120 * 0.005 - ofGetFrameNum() * 0.01), 0, 1, 0, 360);

ofSetColor(255);

ofFill();

ofBeginShape();

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

ofVertex(glm::vec2(15 * cos(deg * DEG_TO_RAD), 15 * sin(deg * DEG_TO_RAD)) + glm::vec2(tmp_x, -120));

}

ofEndShape(true);

ofSetColor(0);

ofNoFill();

ofBeginShape();

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

ofVertex(glm::vec2(15 * cos(deg * DEG_TO_RAD), 15 * sin(deg * DEG_TO_RAD)) + glm::vec2(tmp_x, -120));

}

ofEndShape(true);

// Draw

ofSetLineWidth(2);

for (int y = 250; y > 0; y -= 10) {

hue = ofMap(ofNoise(noise_seed.x, 120 * 0.005 + (ofGetFrameNum() - y / 5) * 0.01), 0, 1, 0, 255);

color.setHsb(hue, 230, 255);

gon = ofMap(ofNoise(noise_seed.y, -120 * 0.005 - (ofGetFrameNum() - y / 5) * 0.01), 0, 1, 3, 8);

deg_span = 360 / gon;

int deg_start = ofMap(ofNoise(noise_seed.z, -120 * 0.005 - (ofGetFrameNum() - y / 5) * 0.01), 0, 1, 0, 360);

float alpha = ofMap(y, 320, 0, 0, 255);

ofSetColor(color, alpha);

ofFill();

ofBeginShape();

for (int deg = deg_start; deg <= deg_start + 360; deg += deg_span) {

ofVertex(glm::vec2(85 * cos(deg * DEG_TO_RAD), 85 * sin(deg * DEG_TO_RAD)) + glm::vec2(0, y));

}

ofEndShape(true);

ofSetColor(255, alpha);

ofNoFill();

ofBeginShape();

for (int deg = deg_start; deg <= deg_start + 360; deg += deg_span) {

ofVertex(glm::vec2(85 * cos(deg * DEG_TO_RAD), 85 * sin(deg * DEG_TO_RAD)) + glm::vec2(0, y));

}

ofEndShape(true);

}

//--------------------------------------------------------------6

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20211116

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2024年5月
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