プログラミング de 落描き – ページ 24 – クリエイティブ・コーディングによる生成物とソース

2024年9月19日

Zoom in/out.

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ズームイン・アウト。

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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) {};

	ofMesh mesh;
	float noise_span;
};

#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) {};

ofMesh mesh;

float noise_span;

};

#include "ofApp.h"

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

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

	ofBackground(39);
}

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

	this->mesh.clear();

	if (ofGetFrameNum() % 100 < 50) {

		this->noise_span = ofMap(ofGetFrameNum() % 100, 0, 50, 0.02, 0.00005);
	}
	else {

		this->noise_span = ofMap(ofGetFrameNum() % 100, 51, 100, 0.00005, 0.02);
	}

	float span = 1;
	ofColor color;
	for (float x = ofGetWindowWidth() * -0.5 + 30 ; x <= ofGetWindowWidth() * 0.5 - span - 30; x += span) {

		for (float y = ofGetWindowHeight() * -0.5 + 30; y <= ofGetWindowHeight() * 0.5 - span - 30 ; y += span) {

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

			for (int i = this->mesh.getNumVertices() - 4; i < this->mesh.getNumVertices(); i++) {

				auto noise_location = this->mesh.getVertex(i) * this->noise_span;
				auto noise_value = ofMap(ofNoise(noise_location.x, noise_location.y, ofGetFrameNum() * 0.06), 0, 1, 0, 4);
				int int_noise_value = noise_value;
				float param = noise_value - int_noise_value;
				param = abs(param - 0.5);
				auto alpha = param < 0.3 ? ofMap(param, 0, 0.3, 255, 0) : 0;

				color.setHsb(ofMap(int_noise_value, 0, 4, 0, 255), 200, 255);
				this->mesh.addColor(ofColor(color, alpha));
			}

			this->mesh.addIndex(this->mesh.getNumVertices() - 1); this->mesh.addIndex(this->mesh.getNumVertices() - 2); this->mesh.addIndex(this->mesh.getNumVertices() - 3);
			this->mesh.addIndex(this->mesh.getNumVertices() - 1); this->mesh.addIndex(this->mesh.getNumVertices() - 3); this->mesh.addIndex(this->mesh.getNumVertices() - 4);
		}
	}
}

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

	ofTranslate(ofGetWindowSize() * 0.5);
	this->mesh.draw();

	/*
	int start = 50 + 18;
	if (ofGetFrameNum() > start) {

		ostringstream os;
		os << setw(4) << setfill('0') << ofGetFrameNum() - start;
		ofImage image;
		image.grabScreen(0, 0, ofGetWidth(), ofGetHeight());
		image.saveImage("image/cap/img_" + os.str() + ".jpg");
		if (ofGetFrameNum() - start >= 25 * 20) {

			std::exit(1);
		}
	}
	*/
}

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

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

#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(25);

ofSetWindowTitle("openFrameworks");

ofBackground(39);

}

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

void ofApp::update() {

this->mesh.clear();

if (ofGetFrameNum() % 100 < 50) {

this->noise_span = ofMap(ofGetFrameNum() % 100, 0, 50, 0.02, 0.00005);

}

else {

this->noise_span = ofMap(ofGetFrameNum() % 100, 51, 100, 0.00005, 0.02);

}

float span = 1;

ofColor color;

for (float x = ofGetWindowWidth() * -0.5 + 30 ; x <= ofGetWindowWidth() * 0.5 - span - 30; x += span) {

for (float y = ofGetWindowHeight() * -0.5 + 30; y <= ofGetWindowHeight() * 0.5 - span - 30 ; y += span) {

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

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

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

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

for (int i = this->mesh.getNumVertices() - 4; i < this->mesh.getNumVertices(); i++) {

auto noise_location = this->mesh.getVertex(i) * this->noise_span;

auto noise_value = ofMap(ofNoise(noise_location.x, noise_location.y, ofGetFrameNum() * 0.06), 0, 1, 0, 4);

int int_noise_value = noise_value;

float param = noise_value - int_noise_value;

param = abs(param - 0.5);

auto alpha = param < 0.3 ? ofMap(param, 0, 0.3, 255, 0) : 0;

color.setHsb(ofMap(int_noise_value, 0, 4, 0, 255), 200, 255);

this->mesh.addColor(ofColor(color, alpha));

}

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

this->mesh.addIndex(this->mesh.getNumVertices() - 1); this->mesh.addIndex(this->mesh.getNumVertices() - 3); this->mesh.addIndex(this->mesh.getNumVertices() - 4);

}

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

void ofApp::draw() {

ofTranslate(ofGetWindowSize() * 0.5);

this->mesh.draw();

int start = 50 + 18;

if (ofGetFrameNum() > start) {

ostringstream os;

os << setw(4) << setfill('0') << ofGetFrameNum() - start;

ofImage image;

image.grabScreen(0, 0, ofGetWidth(), ofGetHeight());

image.saveImage("image/cap/img_" + os.str() + ".jpg");

if (ofGetFrameNum() - start >= 25 * 20) {

std::exit(1);

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

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2024年9月18日

Blue & White.

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[ About ]
青・白。

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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) {};

	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) {};

ofMesh mesh;

};

#include "ofApp.h"

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

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

	ofBackground(239);
}

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

	this->mesh.clear();

	float span = 1;

	for (float x = ofGetWindowWidth() * -0.5; x <= ofGetWindowWidth() * 0.5 - span; x += span) {

		for (float y = ofGetWindowHeight() * -0.5; y <= ofGetWindowHeight() * 0.5 - span; y += span) {

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

			for (int i = this->mesh.getNumVertices() - 4; i < this->mesh.getNumVertices(); i++) {

				auto noise_location = glm::normalize(this->mesh.getVertex(i)) * 0.35;
				auto noise_value = ofMap(ofNoise(noise_location.x, noise_location.y, glm::length(this->mesh.getVertex(i)) * 0.005, ofGetFrameNum() * 0.003), 0, 1, 0, 6);
				int int_noise_value = noise_value;
				float param = noise_value - int_noise_value;
				param = abs(param - 0.5);
				auto alpha = param < 0.5 ? ofMap(param, 0, 0.5, 255, 0) : 0;

				this->mesh.addColor(ofColor(0, 0, 128, alpha));
			}

			this->mesh.addIndex(this->mesh.getNumVertices() - 1); this->mesh.addIndex(this->mesh.getNumVertices() - 2); this->mesh.addIndex(this->mesh.getNumVertices() - 3);
			this->mesh.addIndex(this->mesh.getNumVertices() - 1); this->mesh.addIndex(this->mesh.getNumVertices() - 3); this->mesh.addIndex(this->mesh.getNumVertices() - 4);
		}
	}
}

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

	ofTranslate(ofGetWindowSize() * 0.5);
	this->mesh.draw();

	/*
	int start = 1;
	if (ofGetFrameNum() > start) {

		ostringstream os;
		os << setw(4) << setfill('0') << ofGetFrameNum() - start;
		ofImage image;
		image.grabScreen(0, 0, ofGetWidth(), ofGetHeight());
		image.saveImage("image/cap/img_" + os.str() + ".jpg");
		if (ofGetFrameNum() - start >= 25 * 20) {

			std::exit(1);
		}
	}
	*/
}

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

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

#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(25);

ofSetWindowTitle("openFrameworks");

ofBackground(239);

}

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

void ofApp::update() {

this->mesh.clear();

float span = 1;

for (float x = ofGetWindowWidth() * -0.5; x <= ofGetWindowWidth() * 0.5 - span; x += span) {

for (float y = ofGetWindowHeight() * -0.5; y <= ofGetWindowHeight() * 0.5 - span; y += span) {

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

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

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

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

for (int i = this->mesh.getNumVertices() - 4; i < this->mesh.getNumVertices(); i++) {

auto noise_location = glm::normalize(this->mesh.getVertex(i)) * 0.35;

auto noise_value = ofMap(ofNoise(noise_location.x, noise_location.y, glm::length(this->mesh.getVertex(i)) * 0.005, ofGetFrameNum() * 0.003), 0, 1, 0, 6);

int int_noise_value = noise_value;

float param = noise_value - int_noise_value;

param = abs(param - 0.5);

auto alpha = param < 0.5 ? ofMap(param, 0, 0.5, 255, 0) : 0;

this->mesh.addColor(ofColor(0, 0, 128, alpha));

}

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

this->mesh.addIndex(this->mesh.getNumVertices() - 1); this->mesh.addIndex(this->mesh.getNumVertices() - 3); this->mesh.addIndex(this->mesh.getNumVertices() - 4);

}

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

void ofApp::draw() {

ofTranslate(ofGetWindowSize() * 0.5);

this->mesh.draw();

int start = 1;

if (ofGetFrameNum() > start) {

ostringstream os;

os << setw(4) << setfill('0') << ofGetFrameNum() - start;

ofImage image;

image.grabScreen(0, 0, ofGetWidth(), ofGetHeight());

image.saveImage("image/cap/img_" + os.str() + ".jpg");

if (ofGetFrameNum() - start >= 25 * 20) {

std::exit(1);

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
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2024年9月17日

Enoki.

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[ About ]
えのき。

[ 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<vector<glm::vec2>> log_list;
	vector<glm::vec2> velocity_list;
	vector<float> noise_seed_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<vector<glm::vec2>> log_list;

vector<glm::vec2> velocity_list;

vector<float> noise_seed_list;

vector<ofColor> color_list;

};

#include "ofApp.h"

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

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

	ofBackground(39);
	ofSetLineWidth(0.5);
	ofSetCircleResolution(60);

	ofEnableBlendMode(ofBlendMode::OF_BLENDMODE_ADD);
}

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

	ofColor color;
	for (int i = 0; i < 15; i++) {

		color.setHsb(ofMap(i, 0, 15, 0, 255), 150, 255);

		auto noise_location = glm::vec2(
			ofMap(ofNoise(39 + i * 1000, ofGetFrameNum() * 0.005), 0, 1, -600, 600),
			ofMap(ofNoise(239 + i * 1000, ofGetFrameNum() * 0.005), 0, 1, -600, 600));
		noise_location = glm::length(noise_location) < 600 ? noise_location : glm::normalize(noise_location) * 600;

		auto next_noise_location = glm::vec2(
			ofMap(ofNoise(39 + i * 1000, (ofGetFrameNum() + 1) * 0.005), 0, 1, -600, 600),
			ofMap(ofNoise(239 + i * 1000, (ofGetFrameNum() + 1) * 0.005), 0, 1, -600, 600));
		next_noise_location = glm::length(next_noise_location) < 600 ? next_noise_location : glm::normalize(next_noise_location) * 600;

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

			vector<glm::vec2> log;
			log.push_back(noise_location);
			this->log_list.push_back(log);

			auto deg = glm::atan(next_noise_location.y - noise_location.y, next_noise_location.x - noise_location.x) * RAD_TO_DEG + 180 + ofRandom(-15, 15);
			glm::vec2 velocity = glm::vec2(cos(deg * DEG_TO_RAD), sin(deg * DEG_TO_RAD));
			this->velocity_list.push_back(velocity);

			this->noise_seed_list.push_back(ofRandom(1000));
			this->color_list.push_back(color);
		}
	}

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

		auto future = this->velocity_list[i] * 200;
		auto random_deg = ofMap(ofNoise(glm::vec2(this->noise_seed_list[i], ofGetFrameNum() * 0.025)), 0, 1, 0, 360);
		future += glm::vec2(30 * cos(random_deg * DEG_TO_RAD), 30 * sin(random_deg * DEG_TO_RAD));

		auto next = this->log_list[i].back() + glm::normalize(future) * 3;
		next = glm::length(next) < 620 ? next : glm::normalize(next) * 620;
		this->log_list[i].push_back(next);

		if (this->log_list[i].size() > 30) {

			this->log_list.erase(this->log_list.begin() + i);
			this->velocity_list.erase(this->velocity_list.begin() + i);
			this->noise_seed_list.erase(this->noise_seed_list.begin() + i);
			this->color_list.erase(this->color_list.begin() + i);
		}
	}
}

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

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

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

		ofNoFill();
		ofSetColor(this->color_list[i]);

		ofBeginShape();
		ofVertices(this->log_list[i]);
		ofEndShape();

		ofFill();
		ofDrawCircle(this->log_list[i].back(), 3);
	}

	/*
	int start = 50;
	if (ofGetFrameNum() > start) {

		ostringstream os;
		os << setw(4) << setfill('0') << ofGetFrameNum() - start;
		ofImage image;
		image.grabScreen(0, 0, ofGetWidth(), ofGetHeight());
		image.saveImage("image/cap/img_" + os.str() + ".jpg");
		if (ofGetFrameNum() - start >= 25 * 20) {

			std::exit(1);
		}
	}
	*/
}

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

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

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#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(25);

ofSetWindowTitle("openframeworks");

ofBackground(39);

ofSetLineWidth(0.5);

ofSetCircleResolution(60);

ofEnableBlendMode(ofBlendMode::OF_BLENDMODE_ADD);

}

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

void ofApp::update() {

ofColor color;

for (int i = 0; i < 15; i++) {

color.setHsb(ofMap(i, 0, 15, 0, 255), 150, 255);

auto noise_location = glm::vec2(

ofMap(ofNoise(39 + i * 1000, ofGetFrameNum() * 0.005), 0, 1, -600, 600),

ofMap(ofNoise(239 + i * 1000, ofGetFrameNum() * 0.005), 0, 1, -600, 600));

noise_location = glm::length(noise_location) < 600 ? noise_location : glm::normalize(noise_location) * 600;

auto next_noise_location = glm::vec2(

ofMap(ofNoise(39 + i * 1000, (ofGetFrameNum() + 1) * 0.005), 0, 1, -600, 600),

ofMap(ofNoise(239 + i * 1000, (ofGetFrameNum() + 1) * 0.005), 0, 1, -600, 600));

next_noise_location = glm::length(next_noise_location) < 600 ? next_noise_location : glm::normalize(next_noise_location) * 600;

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

vector<glm::vec2> log;

log.push_back(noise_location);

this->log_list.push_back(log);

auto deg = glm::atan(next_noise_location.y - noise_location.y, next_noise_location.x - noise_location.x) * RAD_TO_DEG + 180 + ofRandom(-15, 15);

glm::vec2 velocity = glm::vec2(cos(deg * DEG_TO_RAD), sin(deg * DEG_TO_RAD));

this->velocity_list.push_back(velocity);

this->noise_seed_list.push_back(ofRandom(1000));

this->color_list.push_back(color);

}

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

auto future = this->velocity_list[i] * 200;

auto random_deg = ofMap(ofNoise(glm::vec2(this->noise_seed_list[i], ofGetFrameNum() * 0.025)), 0, 1, 0, 360);

future += glm::vec2(30 * cos(random_deg * DEG_TO_RAD), 30 * sin(random_deg * DEG_TO_RAD));

auto next = this->log_list[i].back() + glm::normalize(future) * 3;

next = glm::length(next) < 620 ? next : glm::normalize(next) * 620;

this->log_list[i].push_back(next);

if (this->log_list[i].size() > 30) {

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

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

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

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

}

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

void ofApp::draw() {

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

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

ofNoFill();

ofSetColor(this->color_list[i]);

ofBeginShape();

ofVertices(this->log_list[i]);

ofEndShape();

ofFill();

ofDrawCircle(this->log_list[i].back(), 3);

}

int start = 50;

if (ofGetFrameNum() > start) {

ostringstream os;

os << setw(4) << setfill('0') << ofGetFrameNum() - start;

ofImage image;

image.grabScreen(0, 0, ofGetWidth(), ofGetHeight());

image.saveImage("image/cap/img_" + os.str() + ".jpg");

if (ofGetFrameNum() - start >= 25 * 20) {

std::exit(1);

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

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2024年11月
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