openFrameworks – ページ 422 – プログラミング de 落描き

2021年9月8日2021年9月8日

Overwrite. Draw by openFrameworks

[ Video ]

[ About ]
ofSetBackgroundAuto(false)で塗りつぶしを止めて、書き続ける。

Stop filling with ofSetBackgroundAuto(false) and continue writing.

[ 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) {};

	glm::vec2 make_point(int len, int param);

	ofTrueTypeFont font;
	int font_size;
	vector<string> words;

	vector<ofMesh> mesh_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) {};

glm::vec2 make_point(int len, int param);

ofTrueTypeFont font;

int font_size;

vector<string> words;

vector<ofMesh> mesh_list;

};

#include "ofApp.h"

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

	ofSetFrameRate(60);
	ofSetWindowTitle("openframeworks");

	ofBackground(239);
	ofSetColor(239);
	ofNoFill();
	ofSetRectMode(ofRectMode::OF_RECTMODE_CENTER);
	ofSetBackgroundAuto(false);

	this->font_size = 55;
	ofTrueTypeFontSettings font_settings("fonts/msgothic.ttc", this->font_size);
	font_settings.antialiased = true;
	font_settings.addRanges(ofAlphabet::Japanese);
	this->font.load(font_settings);

	this->words = {

		u8"はる", u8"なつ", u8"あき", u8"ふゆ", u8"そら",
		u8"つち", u8"あめ", u8"くも", u8"かさ", u8"ひと",
	};
}

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

	ofColor color;
	vector<ofColor> color_list;
	vector<int> hex_list = { 0xef476f, 0xffd166, 0x06d6a0, 0x118ab2, 0x073b4c };
	for (auto hex : hex_list) {

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

	if (ofGetFrameNum() % 2 == 0) {

		this->mesh_list.clear();

		ofColor color_1, color_2;
		int len = 600;
		int x = ofGetWidth() * 0.5;
		int y = ofGetHeight() * 0.5;

		ofMesh mesh;
		color_1 = color_list[int(ofRandom(color_list.size()))];
		color_2 = color_list[int(ofRandom(color_list.size()))];

		int param = ofRandom(100);

		if (ofRandom(1) < 0.5) {

			mesh.addVertex(glm::vec3(x, y, 0) + glm::vec3(this->make_point(len, param), 0));
			mesh.addVertex(glm::vec3(x, y, 0) + glm::vec3(this->make_point(len, param + 2), 0));
			mesh.addColor(color_1);
			mesh.addColor(color_1);

			mesh.addVertex(glm::vec3(x, y, 0) + glm::vec3(this->make_point(len, 100 - param - 2), 0));
			mesh.addVertex(glm::vec3(x, y, 0) + glm::vec3(this->make_point(len, 100 - param), 0));
			mesh.addColor(color_2);
			mesh.addColor(color_2);
		}
		else {

			mesh.addVertex(glm::vec3(x, y, 0) + glm::vec3(this->make_point(len, param), 0));
			mesh.addVertex(glm::vec3(x, y, 0) + glm::vec3(this->make_point(len, param + 2), 0));
			mesh.addColor(color_1);
			mesh.addColor(color_1);

			mesh.addVertex(glm::vec3(x, y, 0) + glm::vec3(this->make_point(len, 75 - param + 75 - 2), 0));
			mesh.addVertex(glm::vec3(x, y, 0) + glm::vec3(this->make_point(len, 75 - param + 75), 0));
			mesh.addColor(color_2);
			mesh.addColor(color_2);
		}

		mesh.addIndex(0); mesh.addIndex(1); mesh.addIndex(3);
		mesh.addIndex(1); mesh.addIndex(2); mesh.addIndex(3);

		this->mesh_list.push_back(mesh);
	}
}

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

	if (ofGetFrameNum() % 12 == 0) {

		int x = ofRandom(120, 600);
		int y = ofRandom(150, 570);
		int word_index = (int)ofRandom(this->words.size());

		ofFill();
		ofSetColor(239);

		ofPushMatrix();
		ofTranslate(x, y);
		ofRotateZ(ofRandom(360));

		this->font.drawString(this->words[word_index], -60, -60);

		ofPopMatrix();

	}

	ofNoFill();
	for (auto& mesh : this->mesh_list) {

		mesh.draw();

		ofSetColor(255);
		ofBeginShape();
		for (auto& vertex : mesh.getVertices()) {

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

	ofSetColor(39);
	ofDrawRectangle(360, 360, 600, 600);
}

//--------------------------------------------------------------
glm::vec2 ofApp::make_point(int len, int param) {

	param = param % 100;
	if (param < 25) {

		return glm::vec2(ofMap(param, 0, 25, -len * 0.5, len * 0.5), -len * 0.5);
	}
	else if (param < 50) {

		return glm::vec2(len * 0.5, ofMap(param, 25, 50, -len * 0.5, len * 0.5));
	}
	else if (param < 75) {

		return glm::vec2(ofMap(param, 50, 75, len * 0.5, -len * 0.5), len * 0.5);
	}
	else {

		return glm::vec2(-len * 0.5, ofMap(param, 75, 100, len * 0.5, -len * 0.5));
	}
}

//--------------------------------------------------------------
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(239);

ofSetColor(239);

ofNoFill();

ofSetRectMode(ofRectMode::OF_RECTMODE_CENTER);

ofSetBackgroundAuto(false);

this->font_size = 55;

ofTrueTypeFontSettings font_settings("fonts/msgothic.ttc", this->font_size);

font_settings.antialiased = true;

font_settings.addRanges(ofAlphabet::Japanese);

this->font.load(font_settings);

this->words = {

u8"はる", u8"なつ", u8"あき", u8"ふゆ", u8"そら",

u8"つち", u8"あめ", u8"くも", u8"かさ", u8"ひと",

};

}

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

void ofApp::update() {

ofColor color;

vector<ofColor> color_list;

vector<int> hex_list = { 0xef476f, 0xffd166, 0x06d6a0, 0x118ab2, 0x073b4c };

for (auto hex : hex_list) {

color.setHex(hex);

color_list.push_back(color);

}

if (ofGetFrameNum() % 2 == 0) {

this->mesh_list.clear();

ofColor color_1, color_2;

int len = 600;

int x = ofGetWidth() * 0.5;

int y = ofGetHeight() * 0.5;

ofMesh mesh;

color_1 = color_list[int(ofRandom(color_list.size()))];

color_2 = color_list[int(ofRandom(color_list.size()))];

int param = ofRandom(100);

if (ofRandom(1) < 0.5) {

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

mesh.addVertex(glm::vec3(x, y, 0) + glm::vec3(this->make_point(len, param + 2), 0));

mesh.addColor(color_1);

mesh.addVertex(glm::vec3(x, y, 0) + glm::vec3(this->make_point(len, 100 - param - 2), 0));

mesh.addVertex(glm::vec3(x, y, 0) + glm::vec3(this->make_point(len, 100 - param), 0));

mesh.addColor(color_2);

}

else {

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

mesh.addVertex(glm::vec3(x, y, 0) + glm::vec3(this->make_point(len, param + 2), 0));

mesh.addColor(color_1);

mesh.addVertex(glm::vec3(x, y, 0) + glm::vec3(this->make_point(len, 75 - param + 75 - 2), 0));

mesh.addVertex(glm::vec3(x, y, 0) + glm::vec3(this->make_point(len, 75 - param + 75), 0));

mesh.addColor(color_2);

}

mesh.addIndex(0); mesh.addIndex(1); mesh.addIndex(3);

mesh.addIndex(1); mesh.addIndex(2); mesh.addIndex(3);

this->mesh_list.push_back(mesh);

}

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

void ofApp::draw() {

if (ofGetFrameNum() % 12 == 0) {

int x = ofRandom(120, 600);

int y = ofRandom(150, 570);

int word_index = (int)ofRandom(this->words.size());

ofFill();

ofSetColor(239);

ofPushMatrix();

ofTranslate(x, y);

ofRotateZ(ofRandom(360));

this->font.drawString(this->words[word_index], -60, -60);

ofPopMatrix();

}

ofNoFill();

for (auto& mesh : this->mesh_list) {

mesh.draw();

ofSetColor(255);

ofBeginShape();

for (auto& vertex : mesh.getVertices()) {

ofVertex(vertex);

}

ofEndShape(true);

}

ofSetColor(39);

ofDrawRectangle(360, 360, 600, 600);

}

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

glm::vec2 ofApp::make_point(int len, int param) {

param = param % 100;

if (param < 25) {

return glm::vec2(ofMap(param, 0, 25, -len * 0.5, len * 0.5), -len * 0.5);

}

else if (param < 50) {

return glm::vec2(len * 0.5, ofMap(param, 25, 50, -len * 0.5, len * 0.5));

}

else if (param < 75) {

return glm::vec2(ofMap(param, 50, 75, len * 0.5, -len * 0.5), len * 0.5);

}

else {

return glm::vec2(-len * 0.5, ofMap(param, 75, 100, len * 0.5, -len * 0.5));

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20210908

2021年9月7日2021年9月7日

Shave the font. Draw by openFrameworks

[ Video ]

[ About ]
ランダムウォークが近づいたらボックスの描写をやめる。
時間経過で再描写する。

Stop describing the box when the random walk approaches.
Redescribe it over time.

[ 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) {};

	void setBoxToMesh(ofMesh& face_target, ofMesh& frame_target, glm::vec3 location, float size, ofColor color);
	void setBoxToMesh(ofMesh& face_target, ofMesh& frame_target, glm::vec3 location, float height, float width, float depth, ofColor color);

	ofEasyCam cam;
	ofMesh face, frame;

	vector<glm::vec3> log_list;

	float len;
	vector<glm::vec3> box_location_list;
	vector<float> alpah_param_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) {};

void setBoxToMesh(ofMesh& face_target, ofMesh& frame_target, glm::vec3 location, float size, ofColor color);

void setBoxToMesh(ofMesh& face_target, ofMesh& frame_target, glm::vec3 location, float height, float width, float depth, ofColor color);

ofEasyCam cam;

ofMesh face, frame;

vector<glm::vec3> log_list;

float len;

vector<glm::vec3> box_location_list;

vector<float> alpah_param_list;

};

#include "ofApp.h"

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

	ofSetFrameRate(60);
	ofSetWindowTitle("openframeworks");

	ofBackground(239);
	ofSetColor(0);
	ofEnableDepthTest();

	ofTrueTypeFont font;
	int font_size = 120;
	font.loadFont("fonts/Kazesawa-Bold.ttf", font_size, true, true, true);

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

	string word = "BREAK";
	for (int y = -180; y <= 180; y += 180) {

		font.drawString(word, font.stringWidth(word) * -0.5, y + font.stringHeight(word) * 0.5);
	}

	fbo.end();

	this->len = 5;
	ofPixels pixels;
	fbo.readToPixels(pixels);
	for (int x = 0; x < fbo.getWidth(); x += this->len) {

		for (int y = 0; y < fbo.getHeight(); y += this->len) {

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

				for (int z = this->len * -2; z <= this->len * 2; z += this->len) {

					this->box_location_list.push_back(glm::vec3(x, y, z));
					this->alpah_param_list.push_back(255);
				}
			}
		}
	}

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

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

	ofSeedRandom(39);

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

	auto noise_seed = glm::vec3(ofRandom(1000), ofRandom(1000), ofRandom(1000));
	auto noise_location = glm::vec3(ofMap(ofNoise(noise_seed.x, ofGetFrameNum() * 0.005), 0, 1, 50, 670), ofMap(ofNoise(noise_seed.y, ofGetFrameNum() * 0.005), 0, 1, 50, 670), ofMap(ofNoise(noise_seed.z, ofGetFrameNum() * 0.005), 0, 1, -25, 25));
	this->log_list.push_back(noise_location);
	while (this->log_list.size() > 30) { this->log_list.erase(this->log_list.begin()); }

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

		if (glm::distance(this->box_location_list[i], noise_location) < 30) {

			this->alpah_param_list[i] = 0;
		}

		if (this->alpah_param_list[i] > 200) {

			this->setBoxToMesh(this->face, this->frame, this->box_location_list[i], this->len, ofColor(239, ofMap(this->alpah_param_list[i], 200, 255, 0, 255)));
		}

		this->alpah_param_list[i] = this->alpah_param_list[i] >= 255 ? 255 : this->alpah_param_list[i] + 1.5;
	}
}

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

	this->cam.begin();
	ofRotateX(180);
	ofTranslate(ofGetWidth() * -0.5, ofGetHeight() * -0.5);
	
	ofNoFill();
	ofBeginShape();
	ofVertices(this->log_list);
	ofEndShape();

	ofFill();
	ofDrawSphere(this->log_list.back(), 5);

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

	this->cam.end();
}

//--------------------------------------------------------------
void ofApp::setBoxToMesh(ofMesh& face_target, ofMesh& frame_target, glm::vec3 location, float size, ofColor color) {

	this->setBoxToMesh(face_target, frame_target, location, size, size, size, color);
}

//--------------------------------------------------------------
void ofApp::setBoxToMesh(ofMesh& face_target, ofMesh& frame_target, glm::vec3 location, float height, float width, float depth, ofColor color) {

	int index = face_target.getVertices().size();

	face_target.addVertex(location + glm::vec3(width * -0.5 * 0.99, height * 0.5 * 0.99, depth * -0.5 * 0.99));
	face_target.addVertex(location + glm::vec3(width * 0.5 * 0.99, height * 0.5 * 0.99, depth * -0.5 * 0.99));
	face_target.addVertex(location + glm::vec3(width * 0.5 * 0.99, height * 0.5 * 0.99, depth * 0.5 * 0.99));
	face_target.addVertex(location + glm::vec3(width * -0.5 * 0.99, height * 0.5 * 0.99, depth * 0.5 * 0.99));

	face_target.addVertex(location + glm::vec3(width * -0.5 * 0.99, height * -0.5 * 0.99, depth * -0.5 * 0.99));
	face_target.addVertex(location + glm::vec3(width * 0.5 * 0.99, height * -0.5 * 0.99, depth * -0.5 * 0.99));
	face_target.addVertex(location + glm::vec3(width * 0.5 * 0.99, height * -0.5 * 0.99, depth * 0.5 * 0.99));
	face_target.addVertex(location + glm::vec3(width * -0.5 * 0.99, height * -0.5 * 0.99, depth * 0.5 * 0.99));

	face_target.addIndex(index + 0); face_target.addIndex(index + 1); face_target.addIndex(index + 2);
	face_target.addIndex(index + 0); face_target.addIndex(index + 2); face_target.addIndex(index + 3);

	face_target.addIndex(index + 4); face_target.addIndex(index + 5); face_target.addIndex(index + 6);
	face_target.addIndex(index + 4); face_target.addIndex(index + 6); face_target.addIndex(index + 7);

	face_target.addIndex(index + 0); face_target.addIndex(index + 4); face_target.addIndex(index + 1);
	face_target.addIndex(index + 4); face_target.addIndex(index + 5); face_target.addIndex(index + 1);

	face_target.addIndex(index + 1); face_target.addIndex(index + 5); face_target.addIndex(index + 6);
	face_target.addIndex(index + 6); face_target.addIndex(index + 2); face_target.addIndex(index + 1);

	face_target.addIndex(index + 2); face_target.addIndex(index + 6); face_target.addIndex(index + 7);
	face_target.addIndex(index + 7); face_target.addIndex(index + 3); face_target.addIndex(index + 2);

	face_target.addIndex(index + 3); face_target.addIndex(index + 7); face_target.addIndex(index + 4);
	face_target.addIndex(index + 4); face_target.addIndex(index + 0); face_target.addIndex(index + 3);

	frame_target.addVertex(location + glm::vec3(width * -0.5, height * 0.5, depth * -0.5));
	frame_target.addVertex(location + glm::vec3(width * 0.5, height * 0.5, depth * -0.5));
	frame_target.addVertex(location + glm::vec3(width * 0.5, height * 0.5, depth * 0.5));
	frame_target.addVertex(location + glm::vec3(width * -0.5, height * 0.5, depth * 0.5));

	frame_target.addVertex(location + glm::vec3(width * -0.5, height * -0.5, depth * -0.5));
	frame_target.addVertex(location + glm::vec3(width * 0.5, height * -0.5, depth * -0.5));
	frame_target.addVertex(location + glm::vec3(width * 0.5, height * -0.5, depth * 0.5));
	frame_target.addVertex(location + glm::vec3(width * -0.5, height * -0.5, depth * 0.5));

	frame_target.addIndex(index + 0); frame_target.addIndex(index + 1);
	frame_target.addIndex(index + 1); frame_target.addIndex(index + 2);
	frame_target.addIndex(index + 2); frame_target.addIndex(index + 3);
	frame_target.addIndex(index + 3); frame_target.addIndex(index + 0);

	frame_target.addIndex(index + 4); frame_target.addIndex(index + 5);
	frame_target.addIndex(index + 5); frame_target.addIndex(index + 6);
	frame_target.addIndex(index + 6); frame_target.addIndex(index + 7);
	frame_target.addIndex(index + 7); frame_target.addIndex(index + 4);

	frame_target.addIndex(index + 0); frame_target.addIndex(index + 4);
	frame_target.addIndex(index + 1); frame_target.addIndex(index + 5);
	frame_target.addIndex(index + 2); frame_target.addIndex(index + 6);
	frame_target.addIndex(index + 3); frame_target.addIndex(index + 7);

	for (int i = 0; i < 8; i++) {

		face_target.addColor(color);
		frame_target.addColor(ofColor(39));
	}
}

//--------------------------------------------------------------
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(239);

ofSetColor(0);

ofEnableDepthTest();

ofTrueTypeFont font;

int font_size = 120;

font.loadFont("fonts/Kazesawa-Bold.ttf", font_size, true, true, true);

ofFbo fbo;

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

fbo.begin();

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

ofClear(0);

ofSetColor(0);

string word = "BREAK";

for (int y = -180; y <= 180; y += 180) {

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

}

fbo.end();

this->len = 5;

ofPixels pixels;

fbo.readToPixels(pixels);

for (int x = 0; x < fbo.getWidth(); x += this->len) {

for (int y = 0; y < fbo.getHeight(); y += this->len) {

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

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

for (int z = this->len * -2; z <= this->len * 2; z += this->len) {

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

this->alpah_param_list.push_back(255);

}

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

}

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

void ofApp::update() {

ofSeedRandom(39);

this->face.clear();

this->frame.clear();

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

auto noise_location = glm::vec3(ofMap(ofNoise(noise_seed.x, ofGetFrameNum() * 0.005), 0, 1, 50, 670), ofMap(ofNoise(noise_seed.y, ofGetFrameNum() * 0.005), 0, 1, 50, 670), ofMap(ofNoise(noise_seed.z, ofGetFrameNum() * 0.005), 0, 1, -25, 25));

this->log_list.push_back(noise_location);

while (this->log_list.size() > 30) { this->log_list.erase(this->log_list.begin()); }

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

if (glm::distance(this->box_location_list[i], noise_location) < 30) {

this->alpah_param_list[i] = 0;

}

if (this->alpah_param_list[i] > 200) {

this->setBoxToMesh(this->face, this->frame, this->box_location_list[i], this->len, ofColor(239, ofMap(this->alpah_param_list[i], 200, 255, 0, 255)));

}

this->alpah_param_list[i] = this->alpah_param_list[i] >= 255 ? 255 : this->alpah_param_list[i] + 1.5;

}

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

void ofApp::draw() {

this->cam.begin();

ofRotateX(180);

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

ofNoFill();

ofBeginShape();

ofVertices(this->log_list);

ofEndShape();

ofFill();

ofDrawSphere(this->log_list.back(), 5);

this->face.drawFaces();

this->frame.drawWireframe();

this->cam.end();

}

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

void ofApp::setBoxToMesh(ofMesh& face_target, ofMesh& frame_target, glm::vec3 location, float size, ofColor color) {

this->setBoxToMesh(face_target, frame_target, location, size, size, size, color);

}

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

void ofApp::setBoxToMesh(ofMesh& face_target, ofMesh& frame_target, glm::vec3 location, float height, float width, float depth, ofColor color) {

int index = face_target.getVertices().size();

face_target.addVertex(location + glm::vec3(width * -0.5 * 0.99, height * 0.5 * 0.99, depth * -0.5 * 0.99));

face_target.addVertex(location + glm::vec3(width * 0.5 * 0.99, height * 0.5 * 0.99, depth * -0.5 * 0.99));

face_target.addVertex(location + glm::vec3(width * 0.5 * 0.99, height * 0.5 * 0.99, depth * 0.5 * 0.99));

face_target.addVertex(location + glm::vec3(width * -0.5 * 0.99, height * 0.5 * 0.99, depth * 0.5 * 0.99));

face_target.addVertex(location + glm::vec3(width * -0.5 * 0.99, height * -0.5 * 0.99, depth * -0.5 * 0.99));

face_target.addVertex(location + glm::vec3(width * 0.5 * 0.99, height * -0.5 * 0.99, depth * -0.5 * 0.99));

face_target.addVertex(location + glm::vec3(width * 0.5 * 0.99, height * -0.5 * 0.99, depth * 0.5 * 0.99));

face_target.addVertex(location + glm::vec3(width * -0.5 * 0.99, height * -0.5 * 0.99, depth * 0.5 * 0.99));

face_target.addIndex(index + 0); face_target.addIndex(index + 1); face_target.addIndex(index + 2);

face_target.addIndex(index + 0); face_target.addIndex(index + 2); face_target.addIndex(index + 3);

face_target.addIndex(index + 4); face_target.addIndex(index + 5); face_target.addIndex(index + 6);

face_target.addIndex(index + 4); face_target.addIndex(index + 6); face_target.addIndex(index + 7);

face_target.addIndex(index + 0); face_target.addIndex(index + 4); face_target.addIndex(index + 1);

face_target.addIndex(index + 4); face_target.addIndex(index + 5); face_target.addIndex(index + 1);

face_target.addIndex(index + 1); face_target.addIndex(index + 5); face_target.addIndex(index + 6);

face_target.addIndex(index + 6); face_target.addIndex(index + 2); face_target.addIndex(index + 1);

face_target.addIndex(index + 2); face_target.addIndex(index + 6); face_target.addIndex(index + 7);

face_target.addIndex(index + 7); face_target.addIndex(index + 3); face_target.addIndex(index + 2);

face_target.addIndex(index + 3); face_target.addIndex(index + 7); face_target.addIndex(index + 4);

face_target.addIndex(index + 4); face_target.addIndex(index + 0); face_target.addIndex(index + 3);

frame_target.addVertex(location + glm::vec3(width * -0.5, height * 0.5, depth * -0.5));

frame_target.addVertex(location + glm::vec3(width * 0.5, height * 0.5, depth * -0.5));

frame_target.addVertex(location + glm::vec3(width * 0.5, height * 0.5, depth * 0.5));

frame_target.addVertex(location + glm::vec3(width * -0.5, height * 0.5, depth * 0.5));

frame_target.addVertex(location + glm::vec3(width * -0.5, height * -0.5, depth * -0.5));

frame_target.addVertex(location + glm::vec3(width * 0.5, height * -0.5, depth * -0.5));

frame_target.addVertex(location + glm::vec3(width * 0.5, height * -0.5, depth * 0.5));

frame_target.addVertex(location + glm::vec3(width * -0.5, height * -0.5, depth * 0.5));

frame_target.addIndex(index + 0); frame_target.addIndex(index + 1);

frame_target.addIndex(index + 1); frame_target.addIndex(index + 2);

frame_target.addIndex(index + 2); frame_target.addIndex(index + 3);

frame_target.addIndex(index + 3); frame_target.addIndex(index + 0);

frame_target.addIndex(index + 4); frame_target.addIndex(index + 5);

frame_target.addIndex(index + 5); frame_target.addIndex(index + 6);

frame_target.addIndex(index + 6); frame_target.addIndex(index + 7);

frame_target.addIndex(index + 7); frame_target.addIndex(index + 4);

frame_target.addIndex(index + 0); frame_target.addIndex(index + 4);

frame_target.addIndex(index + 1); frame_target.addIndex(index + 5);

frame_target.addIndex(index + 2); frame_target.addIndex(index + 6);

frame_target.addIndex(index + 3); frame_target.addIndex(index + 7);

for (int i = 0; i < 8; i++) {

face_target.addColor(color);

frame_target.addColor(ofColor(39));

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20210907

2021年9月6日2021年9月6日

Switching big and small. Draw by openFrameworks

[ Video ]

[ About ]
ofxBox2の大きいサークルと小さいサークルの挙動の違いを見比べて楽しむ。

Enjoy comparing the differences in behavior between the large and small circles ofxBox2.

[ Source ]

#pragma once
#include "ofMain.h"
#include "ofxBox2d.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;

	ofxBox2d box2d;
	vector<shared_ptr<ofxBox2dCircle>> circle_list;
	vector<float> radius_list;
	vector<float> life_list;
	vector<ofColor> color_list;
};

#pragma once

#include "ofMain.h"

#include "ofxBox2d.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;

ofxBox2d box2d;

vector<shared_ptr<ofxBox2dCircle>> circle_list;

vector<float> radius_list;

vector<float> life_list;

vector<ofColor> color_list;

};

#include "ofApp.h"

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

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

	ofBackground(239);

	this->box2d.init();
	this->box2d.setGravity(0, 50);
	this->box2d.createBounds();
	this->box2d.setFPS(60);
	this->box2d.registerGrabbing();
}

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

	vector<ofColor> base_color_list;
	ofColor color;
	vector<int> hex_list = { 0x247BA0, 0x70C1B3, 0xB2DBBF, 0xF3FFBD, 0xFF1654 };
	for (auto hex : hex_list) {

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

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

		this->life_list[i] -= 1;

		if (this->life_list[i] < 0) {

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

	if (ofGetFrameNum() % 240 < 120) {

		for (int i = 0; i < 5; i++) {

			auto radius = ofRandom(2, 5);

			auto circle = make_shared<ofxBox2dCircle>();
			circle->setPhysics(0.5, 0.03, 0.1);
			circle->setup(this->box2d.getWorld(), ofRandom(ofGetWidth() * 0.35 - radius, ofGetWidth() * 0.35 + radius), 100 + radius, radius);
			circle->setRotation(ofRandom(360));
			this->circle_list.push_back(circle);
			this->radius_list.push_back(radius);
			this->life_list.push_back(250);

			this->color_list.push_back(base_color_list[ofRandom(base_color_list.size())]);
		}

	} else {

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

			auto radius = ofRandom(5, 10);

			auto circle = make_shared<ofxBox2dCircle>();
			circle->setPhysics(0.5, 0.03, 0.1);
			circle->setup(this->box2d.getWorld(), ofRandom(ofGetWidth() * 0.65 - radius, ofGetWidth() * 0.65 + radius), 100 + radius, radius);
			circle->setRotation(ofRandom(360));
			this->circle_list.push_back(circle);
			this->radius_list.push_back(radius);
			this->life_list.push_back(250);

			this->color_list.push_back(base_color_list[ofRandom(base_color_list.size())]);
		}
	}

	this->box2d.update();
}

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

	this->cam.begin();
	ofRotateX(180);
	ofTranslate(ofGetWidth() * -0.5, ofGetHeight() * -0.5);

	ofSetLineWidth(1);
	for (int i = 0; i < this->circle_list.size(); i++) {

		ofFill();
		ofSetColor(this->color_list[i]);
		ofDrawCircle(glm::vec2(this->circle_list[i]->getPosition()), this->radius_list[i]);

		ofNoFill();
		ofSetColor(39);
		ofDrawCircle(glm::vec2(this->circle_list[i]->getPosition()), this->radius_list[i]);

	}

	ofSetLineWidth(3);
	ofSetColor(39);
	ofDrawRectangle(0, 0, 720, 720);

	this->cam.end();
}


//--------------------------------------------------------------
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(239);

this->box2d.init();

this->box2d.setGravity(0, 50);

this->box2d.createBounds();

this->box2d.setFPS(60);

this->box2d.registerGrabbing();

}

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

void ofApp::update() {

vector<ofColor> base_color_list;

ofColor color;

vector<int> hex_list = { 0x247BA0, 0x70C1B3, 0xB2DBBF, 0xF3FFBD, 0xFF1654 };

for (auto hex : hex_list) {

color.setHex(hex);

base_color_list.push_back(color);

}

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

this->life_list[i] -= 1;

if (this->life_list[i] < 0) {

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

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

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

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

}

if (ofGetFrameNum() % 240 < 120) {

for (int i = 0; i < 5; i++) {

auto radius = ofRandom(2, 5);

auto circle = make_shared<ofxBox2dCircle>();

circle->setPhysics(0.5, 0.03, 0.1);

circle->setup(this->box2d.getWorld(), ofRandom(ofGetWidth() * 0.35 - radius, ofGetWidth() * 0.35 + radius), 100 + radius, radius);

circle->setRotation(ofRandom(360));

this->circle_list.push_back(circle);

this->radius_list.push_back(radius);

this->life_list.push_back(250);

this->color_list.push_back(base_color_list[ofRandom(base_color_list.size())]);

}

} else {

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

auto radius = ofRandom(5, 10);

auto circle = make_shared<ofxBox2dCircle>();

circle->setPhysics(0.5, 0.03, 0.1);

circle->setup(this->box2d.getWorld(), ofRandom(ofGetWidth() * 0.65 - radius, ofGetWidth() * 0.65 + radius), 100 + radius, radius);

circle->setRotation(ofRandom(360));

this->circle_list.push_back(circle);

this->radius_list.push_back(radius);

this->life_list.push_back(250);

this->color_list.push_back(base_color_list[ofRandom(base_color_list.size())]);

}

this->box2d.update();

}

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

void ofApp::draw() {

this->cam.begin();

ofRotateX(180);

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

ofSetLineWidth(1);

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

ofFill();

ofSetColor(this->color_list[i]);

ofDrawCircle(glm::vec2(this->circle_list[i]->getPosition()), this->radius_list[i]);

ofNoFill();

ofSetColor(39);

ofDrawCircle(glm::vec2(this->circle_list[i]->getPosition()), this->radius_list[i]);

}

ofSetLineWidth(3);

ofSetColor(39);

ofDrawRectangle(0, 0, 720, 720);

this->cam.end();

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20210906

2025年2月
月	火	水	木	金	土	日
					1	2
3	4	5	6	7	8	9
10	11	12	13	14	15	16
17	18	19	20	21	22	23
24	25	26	27	28