プログラミング de 落描き – ページ 843 – クリエイティブ・コーディングによる生成物とソース

2018年2月1日2018年1月31日

文字列のPath情報で物理演算 openFrameworks ofxBox2d

[ Video ]

[ About ]
文字から抜き出したPath情報を元にofxBox2dで物理演算をしています。Key入力を元に文字が生成されているので、リアルタイムに入力した文字が崩れていきます。

昔に一度、作りたいと思いながらもPath情報の取得方法が分からずに諦めていたのですが、ついに念願が叶いました。出来なった事が出来るようになるのは嬉しいですね。

[ 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 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;

	ofxBox2d box2d;
	vector<shared_ptr<ofxBox2dPolygon>> polygons;
	vector<float> polygons_life;
	vector<ofColor> polygons_color;
	ofxBox2dEdge eage_1, eage_2;
};

#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 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;

ofxBox2d box2d;

vector<shared_ptr<ofxBox2dPolygon>> polygons;

vector<float> polygons_life;

vector<ofColor> polygons_color;

ofxBox2dEdge eage_1, eage_2;

};

#include "ofApp.h"

//--------------------------------------------------------------
void ofApp::setup() {
	ofSetFrameRate(60);
	ofBackground(255);
	ofSetWindowTitle("Insta");

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

	this->font.loadFont("fonts/Kazesawa-Bold.ttf", 130, true, false, true);

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

	this->eage_1 = ofxBox2dEdge();
	this->eage_1.addVertex(ofVec2f(ofGetWidth() / 2 - 150, ofGetHeight() / 2 + 100));
	this->eage_1.addVertex(ofVec2f(ofGetWidth() / 2, ofGetHeight() / 2));
	this->eage_1.create(this->box2d.getWorld());

	this->eage_2 = ofxBox2dEdge();
	this->eage_2.addVertex(ofVec2f(ofGetWidth() / 2 + 150, ofGetHeight() / 2 + 100));
	this->eage_2.addVertex(ofVec2f(ofGetWidth() / 2, ofGetHeight() / 2));
	this->eage_2.create(this->box2d.getWorld());
}

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

	for (int i = this->polygons.size() - 1; i >= 0; i--) {
		
		this->polygons_life[i] -= 1;

		if (this->polygons_life[i] < 20) {

			this->polygons[i].get()->destroy();
			this->polygons.erase(this->polygons.begin() + i);
			this->polygons_life.erase(this->polygons_life.begin() + i);
			this->polygons_color.erase(this->polygons_color.begin() + i);
		}
	}

	this->box2d.update();
}

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

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

		ofSetColor(this->polygons_color[i], this->polygons_life[i]);
		this->polygons[i].get()->draw();
	}

	ofSetColor(32);
	this->eage_1.draw();
	this->eage_2.draw();
}

//--------------------------------------------------------------
void ofApp::keyPressed(int key) {

	if (key >= 32 && key < 127) {

		char key_c = (char)key;
		string key_s{ key_c };
		ofTTFCharacter path = this->font.getCharacterAsPoints(key_c);
		ofPoint c_size = ofPoint(this->font.stringWidth(key_s), this->font.stringHeight(key_s));
		ofPoint adjust(ofGetWidth() / 2 - c_size.x / 2, c_size.y);
		ofColor color;
		color.setHsb(ofRandom(255), 255, 225);

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

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

			outline[o_index] = outline[o_index].getResampledBySpacing(ofRandom(15, 40));
		}

		ofMesh mesh;
		ofTessellator t;
		t.tessellateToMesh(outline, ofPolyWindingMode::OF_POLY_WINDING_ODD, mesh);

		vector<ofMeshFace> triangles = mesh.getUniqueFaces();
		for (int i = 0; i < triangles.size(); i++) {

			shared_ptr<ofxBox2dPolygon> polygon = shared_ptr<ofxBox2dPolygon>(new ofxBox2dPolygon);
			polygon.get()->addTriangle(triangles[i].getVertex(0) + adjust, triangles[i].getVertex(1) + adjust, triangles[i].getVertex(2) + adjust);
			polygon.get()->setPhysics(1.0, 0.3, 0.3);
			polygon.get()->create(box2d.getWorld());

			this->polygons.push_back(polygon);
			this->polygons_life.push_back(255);
			this->polygons_color.push_back(color);
		}

	}
}

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

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

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#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(60);

ofBackground(255);

ofSetWindowTitle("Insta");

ofSetColor(0);

ofSetRectMode(ofRectMode::OF_RECTMODE_CENTER);

this->font.loadFont("fonts/Kazesawa-Bold.ttf", 130, true, false, true);

this->box2d.init();

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

this->box2d.createBounds();

this->box2d.setFPS(60);

this->box2d.registerGrabbing();

this->eage_1 = ofxBox2dEdge();

this->eage_1.addVertex(ofVec2f(ofGetWidth() / 2 - 150, ofGetHeight() / 2 + 100));

this->eage_1.addVertex(ofVec2f(ofGetWidth() / 2, ofGetHeight() / 2));

this->eage_1.create(this->box2d.getWorld());

this->eage_2 = ofxBox2dEdge();

this->eage_2.addVertex(ofVec2f(ofGetWidth() / 2 + 150, ofGetHeight() / 2 + 100));

this->eage_2.addVertex(ofVec2f(ofGetWidth() / 2, ofGetHeight() / 2));

this->eage_2.create(this->box2d.getWorld());

}

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

void ofApp::update() {

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

this->polygons_life[i] -= 1;

if (this->polygons_life[i] < 20) {

this->polygons[i].get()->destroy();

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

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

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

}

this->box2d.update();

}

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

void ofApp::draw() {

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

ofSetColor(this->polygons_color[i], this->polygons_life[i]);

this->polygons[i].get()->draw();

}

ofSetColor(32);

this->eage_1.draw();

this->eage_2.draw();

}

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

void ofApp::keyPressed(int key) {

if (key >= 32 && key < 127) {

char key_c = (char)key;

string key_s{ key_c };

ofTTFCharacter path = this->font.getCharacterAsPoints(key_c);

ofPoint c_size = ofPoint(this->font.stringWidth(key_s), this->font.stringHeight(key_s));

ofPoint adjust(ofGetWidth() / 2 - c_size.x / 2, c_size.y);

ofColor color;

color.setHsb(ofRandom(255), 255, 225);

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

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

outline[o_index] = outline[o_index].getResampledBySpacing(ofRandom(15, 40));

}

ofMesh mesh;

ofTessellator t;

t.tessellateToMesh(outline, ofPolyWindingMode::OF_POLY_WINDING_ODD, mesh);

vector<ofMeshFace> triangles = mesh.getUniqueFaces();

for (int i = 0; i < triangles.size(); i++) {

shared_ptr<ofxBox2dPolygon> polygon = shared_ptr<ofxBox2dPolygon>(new ofxBox2dPolygon);

polygon.get()->addTriangle(triangles[i].getVertex(0) + adjust, triangles[i].getVertex(1) + adjust, triangles[i].getVertex(2) + adjust);

polygon.get()->setPhysics(1.0, 0.3, 0.3);

polygon.get()->create(box2d.getWorld());

this->polygons.push_back(polygon);

this->polygons_life.push_back(255);

this->polygons_color.push_back(color);

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20180131

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2018年1月31日2018年1月30日

ofTrueTypeFontからPath情報を取得してバラバラにする openFrameworks

[ Video ]

[ About ]
ofTrueTypeFontからPath情報を取得、分解しました。ofPathからmeshは取得出来たのですが、メッシュの大きさが大小バラバラだったので、ResampleしてそれをofTessellatorというクラスを使って作り直すという変？な事をしています。

それっぽいMesh情報が取れた後は、さらにMeshの中にあるFaceを一つづつ取り出して、Noiseと掛け合わせています。

文字は、MonsterHunterが発売され、Hunter×Hunberが連載再開という事で、熱いキーワード「HUNTER」にしてみました。

[ Source ]

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

	ofTrueTypeFont font;
	string words;
	ofPoint words_size;
	vector<ofTTFCharacter> paths;
};

#pragma once

#include "ofMain.h"

#include "ofFbo.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;

ofTrueTypeFont font;

string words;

ofPoint words_size;

vector<ofTTFCharacter> paths;

};

#include "ofApp.h"

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

	ofSetFrameRate(60);
	ofBackground(255);
	ofSetWindowTitle("Insta");

	ofSetColor(0, 32, 255);

	this->font.loadFont("fonts/Kazesawa-Bold.ttf", 250, true, false, true);
	this->words = "OTHER";
	this->words_size = ofPoint(this->font.stringWidth(this->words), this->font.stringHeight(this->words));
	this->paths = this->font.getStringAsPoints(this->words);
}

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

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

	this->cam.begin();
	ofRotateX(180);

	for (int p_index = 0; p_index < this->paths.size(); p_index++) {

		vector<ofPolyline> outline = this->paths[p_index].getOutline();
		
		for (int o_index = 0; o_index < outline.size(); o_index++) {

			outline[o_index] = outline[o_index].getResampledBySpacing(30);
			ofMesh mesh;
			ofTessellator t;
			t.tessellateToMesh(outline, ofPolyWindingMode::OF_POLY_WINDING_ODD, mesh);

			vector<ofMeshFace> triangles = mesh.getUniqueFaces();
			for (int i = 0; i < triangles.size(); i++) {

				ofPoint avg = (triangles[i].getVertex(0) + triangles[i].getVertex(1) + triangles[i].getVertex(2)) / 3;
				float noise_value = ofNoise(avg.x * 0.005 - ofGetFrameNum() * 0.05);

				ofMesh draw_mesh;
				ofPoint adjust(-this->words_size.x / 2, this->words_size.y / 2);

				if (noise_value < 0.4){

					adjust += ofPoint(0, 0, 500 * (noise_value - 0.4));
				}
				
				draw_mesh.addVertex(triangles[i].getVertex(0) + adjust);
				draw_mesh.addVertex(triangles[i].getVertex(1) + adjust);
				draw_mesh.addVertex(triangles[i].getVertex(2) + adjust);

				draw_mesh.draw();
			}
			
		}
	}

	this->cam.end();
}

//========================================================================
int main() {

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

#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(60);

ofBackground(255);

ofSetWindowTitle("Insta");

ofSetColor(0, 32, 255);

this->font.loadFont("fonts/Kazesawa-Bold.ttf", 250, true, false, true);

this->words = "OTHER";

this->words_size = ofPoint(this->font.stringWidth(this->words), this->font.stringHeight(this->words));

this->paths = this->font.getStringAsPoints(this->words);

}

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

void ofApp::update() {

}

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

void ofApp::draw() {

this->cam.begin();

ofRotateX(180);

for (int p_index = 0; p_index < this->paths.size(); p_index++) {

vector<ofPolyline> outline = this->paths[p_index].getOutline();

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

outline[o_index] = outline[o_index].getResampledBySpacing(30);

ofMesh mesh;

ofTessellator t;

t.tessellateToMesh(outline, ofPolyWindingMode::OF_POLY_WINDING_ODD, mesh);

vector<ofMeshFace> triangles = mesh.getUniqueFaces();

for (int i = 0; i < triangles.size(); i++) {

ofPoint avg = (triangles[i].getVertex(0) + triangles[i].getVertex(1) + triangles[i].getVertex(2)) / 3;

float noise_value = ofNoise(avg.x * 0.005 - ofGetFrameNum() * 0.05);

ofMesh draw_mesh;

ofPoint adjust(-this->words_size.x / 2, this->words_size.y / 2);

if (noise_value < 0.4){

adjust += ofPoint(0, 0, 500 * (noise_value - 0.4));

}

draw_mesh.addVertex(triangles[i].getVertex(0) + adjust);

draw_mesh.addVertex(triangles[i].getVertex(1) + adjust);

draw_mesh.addVertex(triangles[i].getVertex(2) + adjust);

draw_mesh.draw();

}

this->cam.end();

}

//========================================================================

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20180130

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2018年1月30日2018年1月29日

欠損したボックスの集合体　openFrameworks

[ Video ]

[ About ]
BoxをNoise関数で表示・非表示をコントロールしています。加えて、Boxのサイズも変動するようにしてあるります。

カドケシという消しゴムがありますが、それみたいに見えますね。

[ 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;
	ofLight light;
};

#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;

ofLight light;

};

#include "ofApp.h"

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

	ofSetFrameRate(60);
	ofBackground(0);
	ofSetWindowTitle("Insta");

	ofEnableDepthTest();
	
	ofEnableLighting();
	this->light.enable();
}

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

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

	this->cam.begin();
	this->light.setPosition(this->cam.getPosition() * 2.f);

	float assembly_size = ofGetWidth() > ofGetHeight() ? ofGetWidth() : ofGetHeight();
	int box_size = 300 * ofNoise(ofGetFrameNum() * 0.005);
	ofSetColor(255, 0, 0);
	for (int x = -assembly_size / 2; x <= assembly_size / 2; x += box_size) {

		for (int y = -assembly_size / 2; y <= assembly_size / 2; y += box_size) {

			for (int z = -assembly_size / 2; z <= assembly_size / 2; z += box_size) {

				float noise_value = ofNoise(x * 0.005, y * 0.005, z * 0.005, ofGetFrameNum() * 0.0005);
				if (noise_value < 0.5) {

					ofSetColor(255, 0, 0);
					ofFill();
					ofDrawBox(ofPoint(x, y, z), box_size, box_size, box_size);
				}
				else {

				}
				
			}
		}
	}

	this->cam.end();
}

//========================================================================
int main() {

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

#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(60);

ofBackground(0);

ofSetWindowTitle("Insta");

ofEnableDepthTest();

ofEnableLighting();

this->light.enable();

}

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

void ofApp::update() { }

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

void ofApp::draw() {

this->cam.begin();

this->light.setPosition(this->cam.getPosition() * 2.f);

float assembly_size = ofGetWidth() > ofGetHeight() ? ofGetWidth() : ofGetHeight();

int box_size = 300 * ofNoise(ofGetFrameNum() * 0.005);

ofSetColor(255, 0, 0);

for (int x = -assembly_size / 2; x <= assembly_size / 2; x += box_size) {

for (int y = -assembly_size / 2; y <= assembly_size / 2; y += box_size) {

for (int z = -assembly_size / 2; z <= assembly_size / 2; z += box_size) {

float noise_value = ofNoise(x * 0.005, y * 0.005, z * 0.005, ofGetFrameNum() * 0.0005);

if (noise_value < 0.5) {

ofSetColor(255, 0, 0);

ofFill();

ofDrawBox(ofPoint(x, y, z), box_size, box_size, box_size);

}

else {

}

this->cam.end();

}

//========================================================================

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/insta20180129

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