openFrameworks – ページ 259 – プログラミング de 落描き

2023年10月2日2023年10月2日

Snow ball.

[ Video ]

[ About ]
雪玉。

[ 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;

	vector<ofMeshFace> triangle_list;
};

#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;

vector<ofMeshFace> triangle_list;

};

#include "ofApp.h"

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

	ofSetFrameRate(25);
	ofSetWindowTitle("openFrameworks");

	ofBackground(0);
	ofSetColor(0);
	ofEnableDepthTest();

	auto ico_sphere = ofIcoSpherePrimitive(300, 5);
	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();
	for (auto radius = 150; radius <= 250; radius += 1) {

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

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

			if (ofNoise(glm::vec4(avg * 0.008, ofGetFrameNum() * 0.01)) < 0.5) { continue; }

			vector<glm::vec3> vertices;
			vertices.push_back(glm::normalize(this->triangle_list[k].getVertex(0)) * radius);
			vertices.push_back(glm::normalize(this->triangle_list[k].getVertex(1)) * radius);
			vertices.push_back(glm::normalize(this->triangle_list[k].getVertex(2)) * radius);

			this->mesh.addVertices(vertices);

			for (int i = 0; i < 3; i++) {

				auto noise_value = ofNoise(glm::vec4(this->triangle_list[k].getVertex(i) * 0.008, ofGetFrameNum() * 0.01));
				this->mesh.addColor(ofColor(ofMap(radius, 150, 250, 0, 255), noise_value > 0.55 ? 255 : ofMap(noise_value, 0.5, 0.55, 0, 255)));
			}

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

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

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

	this->mesh.draw();

	ofDrawSphere(150);

	this->cam.end();
}

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

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

#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(25);

ofSetWindowTitle("openFrameworks");

ofBackground(0);

ofSetColor(0);

ofEnableDepthTest();

auto ico_sphere = ofIcoSpherePrimitive(300, 5);

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();

for (auto radius = 150; radius <= 250; radius += 1) {

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

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

if (ofNoise(glm::vec4(avg * 0.008, ofGetFrameNum() * 0.01)) < 0.5) { continue; }

vector<glm::vec3> vertices;

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

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

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

this->mesh.addVertices(vertices);

for (int i = 0; i < 3; i++) {

auto noise_value = ofNoise(glm::vec4(this->triangle_list[k].getVertex(i) * 0.008, ofGetFrameNum() * 0.01));

this->mesh.addColor(ofColor(ofMap(radius, 150, 250, 0, 255), noise_value > 0.55 ? 255 : ofMap(noise_value, 0.5, 0.55, 0, 255)));

}

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

}

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

void ofApp::draw() {

this->cam.begin();

ofRotateY(ofGetFrameNum());

this->mesh.draw();

ofDrawSphere(150);

this->cam.end();

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20231002

2023年10月1日

Random walk group.

[ Video ]

[ About ]
ランダムウォーク群。

[ 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) {};

	vector<glm::vec2> location_list;
	vector<int> life_list;
	vector<ofColor> color_list;
};

#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) {};

vector<glm::vec2> location_list;

vector<int> life_list;

vector<ofColor> color_list;

};

#include "ofApp.h"

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

	ofSetFrameRate(25);
	ofSetWindowTitle("openFrameworks");

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

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

	ofColor color;
	for (int i = 0; i < 200; i++) {

		this->location_list.push_back(glm::vec2(ofRandom(-360, 360), ofRandom(-360, 360)));
		this->life_list.push_back(0);

		color.setHsb(ofRandom(255), 255, 255);
		this->color_list.push_back(color);
	}

	for (int i = this->location_list.size() - 1; i >= 0; i--) {

		if (abs(this->location_list[i].x) > 300 || abs(this->location_list[i].y) > 300) {

			this->location_list.erase(this->location_list.begin() + i);
			this->life_list.erase(this->life_list.begin() + i);
			this->color_list.erase(this->color_list.begin() + i);
		}
	}
}

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

	ofTranslate(ofGetWindowSize() * 0.5);

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

		auto deg = ofMap(ofNoise(this->location_list[i].x * 0.008, this->location_list[i].y * 0.008, ofGetFrameNum() * 0.02), 0, 1, -360, 360);
		auto next = this->location_list[i] + glm::vec2(10 * cos(deg * DEG_TO_RAD), 10 * sin(deg * DEG_TO_RAD));

		auto size = this->life_list[i] < 10 ? ofMap(this->life_list[i], 0, 20, 0, 1) : 2;

		ofSetColor(this->color_list[i], 64);
		ofDrawCircle(this->location_list[i], size);

		this->location_list[i] = next;
		this->life_list[i]++;
	}
}

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

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

#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(25);

ofSetWindowTitle("openFrameworks");

ofBackground(0);

ofEnableBlendMode(ofBlendMode::OF_BLENDMODE_ADD);

}

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

void ofApp::update() {

ofColor color;

for (int i = 0; i < 200; i++) {

this->location_list.push_back(glm::vec2(ofRandom(-360, 360), ofRandom(-360, 360)));

this->life_list.push_back(0);

color.setHsb(ofRandom(255), 255, 255);

this->color_list.push_back(color);

}

for (int i = this->location_list.size() - 1; i >= 0; i--) {

if (abs(this->location_list[i].x) > 300 || abs(this->location_list[i].y) > 300) {

this->location_list.erase(this->location_list.begin() + i);

this->life_list.erase(this->life_list.begin() + i);

this->color_list.erase(this->color_list.begin() + i);

}

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

void ofApp::draw() {

ofTranslate(ofGetWindowSize() * 0.5);

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

auto deg = ofMap(ofNoise(this->location_list[i].x * 0.008, this->location_list[i].y * 0.008, ofGetFrameNum() * 0.02), 0, 1, -360, 360);

auto next = this->location_list[i] + glm::vec2(10 * cos(deg * DEG_TO_RAD), 10 * sin(deg * DEG_TO_RAD));

auto size = this->life_list[i] < 10 ? ofMap(this->life_list[i], 0, 20, 0, 1) : 2;

ofSetColor(this->color_list[i], 64);

ofDrawCircle(this->location_list[i], size);

this->location_list[i] = next;

this->life_list[i]++;

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20231001

2023年9月30日

Color bar.

[ Video ]

[ About ]
色の烈。

[ 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) {};

	vector<glm::vec2> location_list;
	vector<float> radius_list;
	vector<float> speed_list;
	vector<float> max_radius_list;
	vector<ofColor> color_list;
};

#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) {};

vector<glm::vec2> location_list;

vector<float> radius_list;

vector<float> speed_list;

vector<float> max_radius_list;

vector<ofColor> color_list;

};

#include "ofApp.h"

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

	ofSetFrameRate(25);
	ofSetWindowTitle("openframeworks");

	ofBackground(0);
	ofSetCircleResolution(36);
	ofEnableBlendMode(ofBlendMode::OF_BLENDMODE_ADD);
}

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

	for (int i = this->location_list.size() - 1; i >= 0; i--) {

		this->radius_list[i] += this->speed_list[i];

		if (this->radius_list[i] > this->max_radius_list[i]) {

			this->location_list.erase(this->location_list.begin() + i);
			this->radius_list.erase(this->radius_list.begin() + i);
			this->speed_list.erase(this->speed_list.begin() + i);
			this->max_radius_list.erase(this->max_radius_list.begin() + i);
			this->color_list.erase(this->color_list.begin() + i);
		}
	}

	ofColor color;
	for (int i = 0; i < 100; i++) {

		int y = (int)(ofGetFrameNum() * 5 + (i % 2) * 360) % 720 - 360;
		int x = ofRandom(-300, 300);
		color.setHsb(ofMap((int)(x  + 300 + ofRandom(100)) % 300, 0, 300, 0, 255), 180, 255);

		auto location = glm::vec2(x, y);
		this->location_list.push_back(location);
		this->radius_list.push_back(1);
		this->speed_list.push_back(ofRandom(0.5, 2.5));
		this->max_radius_list.push_back(ofRandom(5, ofRandom(10, 30)));
		this->color_list.push_back(color);
	}
}

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

	ofTranslate(ofGetWindowSize() * 0.5);

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

		ofNoFill();
		ofSetColor(this->color_list[i], this->radius_list[i] < this->max_radius_list[i] * 0.5 ? 255 : ofMap(this->radius_list[i], this->max_radius_list[i] * 0.5, this->max_radius_list[i], 255, 30));
		ofDrawCircle(this->location_list[i], this->radius_list[i]);

		ofFill();
		ofSetColor(this->color_list[i], ofMap(this->radius_list[i], 1, this->max_radius_list[i], 255, 30));
		ofDrawCircle(this->location_list[i], this->radius_list[i]);
	}
}

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

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

#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(25);

ofSetWindowTitle("openframeworks");

ofBackground(0);

ofSetCircleResolution(36);

ofEnableBlendMode(ofBlendMode::OF_BLENDMODE_ADD);

}

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

void ofApp::update() {

for (int i = this->location_list.size() - 1; i >= 0; i--) {

this->radius_list[i] += this->speed_list[i];

if (this->radius_list[i] > this->max_radius_list[i]) {

this->location_list.erase(this->location_list.begin() + i);

this->radius_list.erase(this->radius_list.begin() + i);

this->speed_list.erase(this->speed_list.begin() + i);

this->max_radius_list.erase(this->max_radius_list.begin() + i);

this->color_list.erase(this->color_list.begin() + i);

}

ofColor color;

for (int i = 0; i < 100; i++) {

int y = (int)(ofGetFrameNum() * 5 + (i % 2) * 360) % 720 - 360;

int x = ofRandom(-300, 300);

color.setHsb(ofMap((int)(x + 300 + ofRandom(100)) % 300, 0, 300, 0, 255), 180, 255);

auto location = glm::vec2(x, y);

this->location_list.push_back(location);

this->radius_list.push_back(1);

this->speed_list.push_back(ofRandom(0.5, 2.5));

this->max_radius_list.push_back(ofRandom(5, ofRandom(10, 30)));

this->color_list.push_back(color);

}

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

void ofApp::draw() {

ofTranslate(ofGetWindowSize() * 0.5);

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

ofNoFill();

ofSetColor(this->color_list[i], this->radius_list[i] < this->max_radius_list[i] * 0.5 ? 255 : ofMap(this->radius_list[i], this->max_radius_list[i] * 0.5, this->max_radius_list[i], 255, 30));

ofDrawCircle(this->location_list[i], this->radius_list[i]);

ofFill();

ofSetColor(this->color_list[i], ofMap(this->radius_list[i], 1, this->max_radius_list[i], 255, 30));

ofDrawCircle(this->location_list[i], this->radius_list[i]);

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20230930

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