openFrameworks – ページ 76 – プログラミング de 落描き

2023年9月19日

FOAM.

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泡。

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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 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) {};

	ofTrueTypeFont font;
	vector<glm::vec2> font_location_list;

	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 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) {};

ofTrueTypeFont font;

vector<glm::vec2> font_location_list;

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(39);
	ofEnableBlendMode(ofBlendMode::OF_BLENDMODE_ADD);

	this->font.loadFont("fonts/Kazesawa-Bold.ttf", 150, true, true, true);

	ofFbo fbo;
	fbo.allocate(ofGetWidth(), ofGetHeight());
	fbo.begin();
	ofTranslate(ofGetWidth() * 0.5, ofGetHeight() * 0.5);
	ofClear(0);
	ofSetColor(0);

	auto word = "FOAM";
	font.drawString(word, font.stringWidth(word) * -0.5, font.stringHeight(word) - 240);

	fbo.end();
	auto span = 2;
	ofPixels pixels;
	fbo.readToPixels(pixels);
	for (int x = 60; x < 700; x += span) {

		for (int y = 0; y < 720; y += span) {

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

				this->font_location_list.push_back(glm::vec3(x - ofGetWidth() * 0.5, y - ofGetHeight() * 0.25, 0));
			}
		}
	}
}

//--------------------------------------------------------------
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);
		}
	}

	for(int i = 0; i < 10; i++) {
		
		int rnd_index = ofRandom(this->font_location_list.size());

		auto location = this->font_location_list[rnd_index];
		this->location_list.push_back(location);
		this->radius_list.push_back(1);
		this->speed_list.push_back(ofRandom(0.05, 0.1));
		this->max_radius_list.push_back(ofRandom(5, 10));
	}
}

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

	ofTranslate(ofGetWindowSize() * 0.5);

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

		if (this->radius_list[i] < this->max_radius_list[i] * 0.5) {

			ofSetColor(255);
		}
		else {

			ofSetColor(ofMap(this->radius_list[i], this->max_radius_list[i] * 0.5, this->max_radius_list[i], 255, 0));
		}

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

		ofFill();
		ofDrawCircle(this->location_list[i], 1);
	}
}

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

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

#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(25);

ofSetWindowTitle("openFrameworks");

ofBackground(39);

ofEnableBlendMode(ofBlendMode::OF_BLENDMODE_ADD);

this->font.loadFont("fonts/Kazesawa-Bold.ttf", 150, true, true, true);

ofFbo fbo;

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

fbo.begin();

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

ofClear(0);

ofSetColor(0);

auto word = "FOAM";

font.drawString(word, font.stringWidth(word) * -0.5, font.stringHeight(word) - 240);

fbo.end();

auto span = 2;

ofPixels pixels;

fbo.readToPixels(pixels);

for (int x = 60; x < 700; x += span) {

for (int y = 0; y < 720; y += span) {

ofColor color = pixels.getColor(x, y);

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

this->font_location_list.push_back(glm::vec3(x - ofGetWidth() * 0.5, y - ofGetHeight() * 0.25, 0));

}

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

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);

}

for(int i = 0; i < 10; i++) {

int rnd_index = ofRandom(this->font_location_list.size());

auto location = this->font_location_list[rnd_index];

this->location_list.push_back(location);

this->radius_list.push_back(1);

this->speed_list.push_back(ofRandom(0.05, 0.1));

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

}

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

void ofApp::draw() {

ofTranslate(ofGetWindowSize() * 0.5);

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

if (this->radius_list[i] < this->max_radius_list[i] * 0.5) {

ofSetColor(255);

}

else {

ofSetColor(ofMap(this->radius_list[i], this->max_radius_list[i] * 0.5, this->max_radius_list[i], 255, 0));

}

ofNoFill();

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

ofFill();

ofDrawCircle(this->location_list[i], 1);

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
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2023年9月18日

Sphere of numbers.

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[ About ]
数字の球体。

[ Source ]

#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) {};

	ofEasyCam cam;

	ofTrueTypeFont font;
	string word;

	float noise_param;
};

#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) {};

ofEasyCam cam;

ofTrueTypeFont font;

string word;

float noise_param;

};

#include "ofApp.h"	

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

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

	ofBackground(39);
	ofEnableDepthTest();
	ofSetLineWidth(2);

	this->font.loadFont("fonts/Kazesawa-Bold.ttf", 50, true, true, true);
	//this->word = "ABCDEFGHIJKLMNOPQRSTUVWXYZ";
	this->word = "0123456789";

	this->noise_param = ofRandom(1000);
}

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

	ofSeedRandom(39);

	if (ofGetFrameNum() % 50 < 25) {

		this->noise_param += ofMap(ofGetFrameNum() % 50, 0, 25, 0.3, 0.001);
	}
}

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

	this->cam.begin();

	ofColor color;
	ofSeedRandom(39);
	for (int i = 0; i < 400; i++) { 

		ofPushMatrix();
		ofRotateZ(ofMap(ofNoise(ofRandom(1000), ofGetFrameNum() * 0.001), 0, 1, 0, 360));
		ofRotateY(ofMap(ofNoise(ofRandom(1000), ofGetFrameNum() * 0.001), 0, 1, 0, 360));
		ofRotateX(ofMap(ofNoise(ofRandom(1000), ofGetFrameNum() * 0.001), 0, 1, 0, 360));

		auto z = ofRandom(270, 280);
		auto base_location = glm::vec3(-25, 25, z);

		ofPath chara_path = this->font.getCharacterAsPoints(this->word[(int)ofMap(ofNoise(ofRandom(1000), this->noise_param), 0, 1, 0, this->word.size())], true, false);
		vector<ofPolyline> outline = chara_path.getOutline();

		ofFill();
		ofSetColor(0);
		ofBeginShape();
		for (int outline_index = 0; outline_index < outline.size(); outline_index++) {

			ofNextContour(true);
			
			auto vertices = outline[outline_index].getResampledByCount(100).getVertices();
			for (auto& vertex : vertices) {

				ofVertex(vertex + base_location);
			}
		}
		ofEndShape(true);

		ofNoFill();
		ofSetColor(255);
		ofBeginShape();
		for (int outline_index = 0; outline_index < outline.size(); outline_index++) {

			ofNextContour(true);

			auto vertices = outline[outline_index].getResampledByCount(100).getVertices();
			for (auto& vertex : vertices) {

				ofVertex(vertex + base_location);
			}
		}
		ofEndShape(true);

		ofPopMatrix();
	}

	this->cam.end();
}

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

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

#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(25);

ofSetWindowTitle("openFrameworks");

ofBackground(39);

ofEnableDepthTest();

ofSetLineWidth(2);

this->font.loadFont("fonts/Kazesawa-Bold.ttf", 50, true, true, true);

//this->word = "ABCDEFGHIJKLMNOPQRSTUVWXYZ";

this->word = "0123456789";

this->noise_param = ofRandom(1000);

}

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

void ofApp::update() {

ofSeedRandom(39);

if (ofGetFrameNum() % 50 < 25) {

this->noise_param += ofMap(ofGetFrameNum() % 50, 0, 25, 0.3, 0.001);

}

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

void ofApp::draw() {

this->cam.begin();

ofColor color;

ofSeedRandom(39);

for (int i = 0; i < 400; i++) {

ofPushMatrix();

ofRotateZ(ofMap(ofNoise(ofRandom(1000), ofGetFrameNum() * 0.001), 0, 1, 0, 360));

ofRotateY(ofMap(ofNoise(ofRandom(1000), ofGetFrameNum() * 0.001), 0, 1, 0, 360));

ofRotateX(ofMap(ofNoise(ofRandom(1000), ofGetFrameNum() * 0.001), 0, 1, 0, 360));

auto z = ofRandom(270, 280);

auto base_location = glm::vec3(-25, 25, z);

ofPath chara_path = this->font.getCharacterAsPoints(this->word[(int)ofMap(ofNoise(ofRandom(1000), this->noise_param), 0, 1, 0, this->word.size())], true, false);

vector<ofPolyline> outline = chara_path.getOutline();

ofFill();

ofSetColor(0);

ofBeginShape();

for (int outline_index = 0; outline_index < outline.size(); outline_index++) {

ofNextContour(true);

auto vertices = outline[outline_index].getResampledByCount(100).getVertices();

for (auto& vertex : vertices) {

ofVertex(vertex + base_location);

}

ofEndShape(true);

ofNoFill();

ofSetColor(255);

ofBeginShape();

for (int outline_index = 0; outline_index < outline.size(); outline_index++) {

ofNextContour(true);

auto vertices = outline[outline_index].getResampledByCount(100).getVertices();

for (auto& vertex : vertices) {

ofVertex(vertex + base_location);

}

ofEndShape(true);

ofPopMatrix();

}

this->cam.end();

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

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2023年9月17日2023年9月17日

Box lines.

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箱の線。

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#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) {};

	ofEasyCam cam;
	vector<glm::vec3> location_list;
};

#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) {};

ofEasyCam cam;

vector<glm::vec3> location_list;

};

#include "ofApp.h"

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

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

	ofBackground(39);
	ofSetLineWidth(0.8);
	ofEnableDepthTest();
}

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

	ofSeedRandom(39);
	this->location_list.clear();

	ofColor color;
	auto noise_seed = glm::vec2(ofRandom(1000), ofRandom(1000));
	for (int i = 0; i < 3; i++) {

		for (int x = -600; x <= 600; x += 4) {

			auto base_y = ofMap(ofNoise(noise_seed.x, x * 0.001 + (ofGetFrameNum() + i * 10000) * 0.002), 0, 1, -400, 400);
			auto base_z = ofMap(ofNoise(noise_seed.y, x * 0.001 + (ofGetFrameNum() + i * 10000) * 0.002), 0, 1, -200, 200);

			auto y = base_y + ofMap(ofNoise(ofRandom(1000), ofGetFrameNum() * 0.005), 0, 1, -50, 50);
			auto z = base_z + ofMap(ofNoise(ofRandom(1000), ofGetFrameNum() * 0.005), 0, 1, -50, 50);
			this->location_list.push_back(glm::vec3(x, y, z));
		}
	}
}

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

	this->cam.begin();

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

		ofPushMatrix();
		ofTranslate(location);

		ofRotateZ(ofRandom(360));
		ofRotateY(ofRandom(360));
		ofRotateZ(ofRandom(360));

		ofSetColor(0);
		ofFill();
		ofDrawBox(15);

		ofSetColor(255);
		ofNoFill();
		ofDrawBox(15);

		ofPopMatrix();
	}

	this->cam.end();
}

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

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

#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(25);

ofSetWindowTitle("openFrameworks");

ofBackground(39);

ofSetLineWidth(0.8);

ofEnableDepthTest();

}

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

void ofApp::update() {

ofSeedRandom(39);

this->location_list.clear();

ofColor color;

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

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

for (int x = -600; x <= 600; x += 4) {

auto base_y = ofMap(ofNoise(noise_seed.x, x * 0.001 + (ofGetFrameNum() + i * 10000) * 0.002), 0, 1, -400, 400);

auto base_z = ofMap(ofNoise(noise_seed.y, x * 0.001 + (ofGetFrameNum() + i * 10000) * 0.002), 0, 1, -200, 200);

auto y = base_y + ofMap(ofNoise(ofRandom(1000), ofGetFrameNum() * 0.005), 0, 1, -50, 50);

auto z = base_z + ofMap(ofNoise(ofRandom(1000), ofGetFrameNum() * 0.005), 0, 1, -50, 50);

this->location_list.push_back(glm::vec3(x, y, z));

}

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

void ofApp::draw() {

this->cam.begin();

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

ofPushMatrix();

ofTranslate(location);

ofRotateZ(ofRandom(360));

ofRotateY(ofRandom(360));

ofRotateZ(ofRandom(360));

ofSetColor(0);

ofFill();

ofDrawBox(15);

ofSetColor(255);

ofNoFill();

ofDrawBox(15);

ofPopMatrix();

}

this->cam.end();

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20230917

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