2019年4月 – ページ 8 – プログラミング de 落描き

2019年4月9日2019年4月9日

Noisy rectangles. openFrameworks

[ Video ]

[ About ]
@takawo さんの投稿からインスパイアッ！

Inspire by @takawo at twitter.

格子状に並べた正方形を一定周期で振幅する波で分割し，波の上下を区分けしながら色付けする．#p5js #creativecoding #dailycoding https://t.co/vfbfPT5duR pic.twitter.com/VKV91Dt3Z2

— ǝʞnsunɥs oʍɐʞɐʇ (@takawo) 2019年4月8日

[ 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 draw_shape(vector<glm::vec2>& side, vector<glm::vec2>& noise);
};

#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 draw_shape(vector<glm::vec2>& side, vector<glm::vec2>& noise);

};

#include "ofApp.h"

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

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

	ofBackground(239);
}

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

	ofSeedRandom(39);
}

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

	int span = 144;
	int len = 120;
	bool flag = true;
	for (int location_y = span * 0.5; location_y < ofGetHeight(); location_y += span) {

		for (int location_x = span * 0.5; location_x < ofGetWidth(); location_x += span) {

			ofPushMatrix();
			ofTranslate(location_x, location_y);

			float noise_seed = ofRandom(100);
			vector<glm::vec2> top, noise, bottom;
			for (int x = -len * 0.5; x <= len * 0.5; x += 1) {

				if (ofRandom(100) < 3 && bottom.size() > 30 && x < len * 0.4) {

					this->draw_shape(bottom, noise);
				}

				noise.push_back(glm::vec2(x, ofMap(ofNoise(location_y, (location_x + x) * 0.005, ofGetFrameNum() * 0.005), 0, 1, -len * 0.35, len * 0.35) + 1));
				bottom.push_back(glm::vec2(x, len * 0.5));
			}

			if (bottom.size() > 0) {

				this->draw_shape(bottom, noise);
			}

			for (int x = -len * 0.5; x <= len * 0.5; x += 1) {

				if (ofRandom(100) < 3 && top.size() > 30 && x < len * 0.4) {

					this->draw_shape(top, noise);
				}

				noise.push_back(glm::vec2(x, ofMap(ofNoise(location_y , (location_x + x) * 0.005, ofGetFrameNum() * 0.005), 0, 1, -len * 0.35, len * 0.35) - 1));
				top.push_back(glm::vec2(x, len * -0.5));
			}

			if (top.size() > 0) {

				this->draw_shape(top, noise);
			}

			ofPopMatrix();
		}
	}
}

//--------------------------------------------------------------
void ofApp::draw_shape(vector<glm::vec2>& side, vector<glm::vec2>& noise){

	ofColor color;
	color.setHsb(ofRandom(255), 180, 235);
	ofSetColor(color);

	std::reverse(noise.begin(), noise.end());

	ofBeginShape();
	ofVertices(side);
	ofVertices(noise);
	ofEndShape(true);

	side.clear();
	noise.clear();
}

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

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

#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(60);

ofSetWindowTitle("openFrameworks");

ofBackground(239);

}

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

void ofApp::update() {

ofSeedRandom(39);

}

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

void ofApp::draw() {

int span = 144;

int len = 120;

bool flag = true;

for (int location_y = span * 0.5; location_y < ofGetHeight(); location_y += span) {

for (int location_x = span * 0.5; location_x < ofGetWidth(); location_x += span) {

ofPushMatrix();

ofTranslate(location_x, location_y);

float noise_seed = ofRandom(100);

vector<glm::vec2> top, noise, bottom;

for (int x = -len * 0.5; x <= len * 0.5; x += 1) {

if (ofRandom(100) < 3 && bottom.size() > 30 && x < len * 0.4) {

this->draw_shape(bottom, noise);

}

noise.push_back(glm::vec2(x, ofMap(ofNoise(location_y, (location_x + x) * 0.005, ofGetFrameNum() * 0.005), 0, 1, -len * 0.35, len * 0.35) + 1));

bottom.push_back(glm::vec2(x, len * 0.5));

}

if (bottom.size() > 0) {

this->draw_shape(bottom, noise);

}

for (int x = -len * 0.5; x <= len * 0.5; x += 1) {

if (ofRandom(100) < 3 && top.size() > 30 && x < len * 0.4) {

this->draw_shape(top, noise);

}

noise.push_back(glm::vec2(x, ofMap(ofNoise(location_y , (location_x + x) * 0.005, ofGetFrameNum() * 0.005), 0, 1, -len * 0.35, len * 0.35) - 1));

top.push_back(glm::vec2(x, len * -0.5));

}

if (top.size() > 0) {

this->draw_shape(top, noise);

}

ofPopMatrix();

}

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

void ofApp::draw_shape(vector<glm::vec2>& side, vector<glm::vec2>& noise){

ofColor color;

color.setHsb(ofRandom(255), 180, 235);

ofSetColor(color);

std::reverse(noise.begin(), noise.end());

ofBeginShape();

ofVertices(side);

ofVertices(noise);

ofEndShape(true);

side.clear();

noise.clear();

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20190409

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2019年4月8日2019年4月8日

Drop shadow. openFrameworks

[ Video ]

[ About ]
今日はアイデアが降りて来なかったので、過去の投稿を掛け合わせてみました。OpenCVを使って影を作っています

Drop shadow.

[ Source ]

#pragma once
#include "ofMain.h"
#include "opencv2/opencv.hpp"

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) {};

	ofFbo fbo;
	ofPixels pixels;
	cv::Mat pixels_mat;
};

#pragma once

#include "ofMain.h"

#include "opencv2/opencv.hpp"

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) {};

ofFbo fbo;

ofPixels pixels;

cv::Mat pixels_mat;

};

#include "ofApp.h"

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

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

	ofBackground(239);
	ofSetLineWidth(3);

	this->fbo.allocate(ofGetWidth() + 25, ofGetHeight() + 25);
	this->fbo.readToPixels(this->pixels);
	// Link pixels And pixels_mat
	this->pixels_mat = cv::Mat(this->pixels.getHeight(), this->pixels.getWidth(), CV_8UC4, this->pixels.getData());
}

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

	ofSeedRandom(39);
	ofSetColor(39);

	this->fbo.begin();
	ofClear(0);
	ofTranslate(this->fbo.getWidth() * 0.5, this->fbo.getHeight() * 0.5);

	auto radius_base = 250;
	auto len = 125;
	auto deg_span = 5;
	for (auto deg = 0; deg < 360; deg += deg_span) {

		auto noise_point = glm::vec2(radius_base * cos(deg * DEG_TO_RAD), radius_base * sin(deg * DEG_TO_RAD));
		auto noise_value = ofNoise(noise_point.x * 0.01, noise_point.y * 0.01, ofGetFrameNum() * 0.01);
		auto radius = radius_base;
		if (noise_value > 0.7) { radius += ofMap(noise_value, 0.7, 1.0, 0, radius_base * 0.5); }
		if (noise_value < 0.3) { radius -= ofMap(noise_value, 0.0, 0.3, radius_base * 0.5, 0); }

		ofBeginShape();
		ofVertex(glm::vec2(radius * cos((deg - deg_span * 0.45)  * DEG_TO_RAD), radius * sin((deg - deg_span * 0.45) * DEG_TO_RAD)));
		ofVertex(glm::vec2(radius * cos((deg + deg_span * 0.45)  * DEG_TO_RAD), radius * sin((deg + deg_span * 0.45) * DEG_TO_RAD)));
		ofVertex(glm::vec2((radius - len) * cos((deg + deg_span * 0.45)  * DEG_TO_RAD), (radius - len) * sin((deg + deg_span * 0.45) * DEG_TO_RAD)));
		ofVertex(glm::vec2((radius - len) * cos((deg - deg_span * 0.45)  * DEG_TO_RAD), (radius - len) * sin((deg - deg_span * 0.45) * DEG_TO_RAD)));
		ofEndShape(true);
	}

	this->fbo.end();
	// Copy Fbo To pixels
	this->fbo.readToPixels(this->pixels);

	// Gray
	cv::Mat gray_mat;
	cv::cvtColor(this->pixels_mat, gray_mat, cv::COLOR_RGBA2GRAY);
	for (int y = 0; y < this->pixels_mat.cols; y++) {

		for (int x = 0; x < this->pixels_mat.rows; x++) {

			if (gray_mat.at<unsigned char>(y, x) > 0) {

				this->pixels_mat.at<cv::Vec4b>(y, x) = cv::Vec4b(gray_mat.at<unsigned char>(y, x), gray_mat.at<unsigned char>(y, x), gray_mat.at<unsigned char>(y, x), this->pixels_mat.at<cv::Vec4b>(y, x)[3]);
			}
		}
	}

	// Blur Process
	cv::GaussianBlur(this->pixels_mat, this->pixels_mat, cv::Size(19, 19), 10, 10);
}

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

	// Draw Shadow
	ofSetColor(255, 192);
	ofImage draw_image;
	draw_image.setFromPixels(this->pixels);
	draw_image.draw(-5, -5);

	// Draw Fbo Image 
	ofSetColor(255);
	this->fbo.draw(-25, -25);
}

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

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

#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(60);

ofSetWindowTitle("openFrameworks");

ofBackground(239);

ofSetLineWidth(3);

this->fbo.allocate(ofGetWidth() + 25, ofGetHeight() + 25);

this->fbo.readToPixels(this->pixels);

// Link pixels And pixels_mat

this->pixels_mat = cv::Mat(this->pixels.getHeight(), this->pixels.getWidth(), CV_8UC4, this->pixels.getData());

}

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

void ofApp::update() {

ofSeedRandom(39);

ofSetColor(39);

this->fbo.begin();

ofClear(0);

ofTranslate(this->fbo.getWidth() * 0.5, this->fbo.getHeight() * 0.5);

auto radius_base = 250;

auto len = 125;

auto deg_span = 5;

for (auto deg = 0; deg < 360; deg += deg_span) {

auto noise_point = glm::vec2(radius_base * cos(deg * DEG_TO_RAD), radius_base * sin(deg * DEG_TO_RAD));

auto noise_value = ofNoise(noise_point.x * 0.01, noise_point.y * 0.01, ofGetFrameNum() * 0.01);

auto radius = radius_base;

if (noise_value > 0.7) { radius += ofMap(noise_value, 0.7, 1.0, 0, radius_base * 0.5); }

if (noise_value < 0.3) { radius -= ofMap(noise_value, 0.0, 0.3, radius_base * 0.5, 0); }

ofBeginShape();

ofVertex(glm::vec2(radius * cos((deg - deg_span * 0.45) * DEG_TO_RAD), radius * sin((deg - deg_span * 0.45) * DEG_TO_RAD)));

ofVertex(glm::vec2(radius * cos((deg + deg_span * 0.45) * DEG_TO_RAD), radius * sin((deg + deg_span * 0.45) * DEG_TO_RAD)));

ofVertex(glm::vec2((radius - len) * cos((deg + deg_span * 0.45) * DEG_TO_RAD), (radius - len) * sin((deg + deg_span * 0.45) * DEG_TO_RAD)));

ofVertex(glm::vec2((radius - len) * cos((deg - deg_span * 0.45) * DEG_TO_RAD), (radius - len) * sin((deg - deg_span * 0.45) * DEG_TO_RAD)));

ofEndShape(true);

}

this->fbo.end();

// Copy Fbo To pixels

this->fbo.readToPixels(this->pixels);

// Gray

cv::Mat gray_mat;

cv::cvtColor(this->pixels_mat, gray_mat, cv::COLOR_RGBA2GRAY);

for (int y = 0; y < this->pixels_mat.cols; y++) {

for (int x = 0; x < this->pixels_mat.rows; x++) {

if (gray_mat.at<unsigned char>(y, x) > 0) {

this->pixels_mat.at<cv::Vec4b>(y, x) = cv::Vec4b(gray_mat.at<unsigned char>(y, x), gray_mat.at<unsigned char>(y, x), gray_mat.at<unsigned char>(y, x), this->pixels_mat.at<cv::Vec4b>(y, x)[3]);

}

// Blur Process

cv::GaussianBlur(this->pixels_mat, this->pixels_mat, cv::Size(19, 19), 10, 10);

}

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

void ofApp::draw() {

// Draw Shadow

ofSetColor(255, 192);

ofImage draw_image;

draw_image.setFromPixels(this->pixels);

draw_image.draw(-5, -5);

// Draw Fbo Image

ofSetColor(255);

this->fbo.draw(-25, -25);

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20190408

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2019年4月7日

Broken squares. openFrameworks

[ Video ]

[ About ]
バラバラ四角形

Broken squares.

[ 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) {};

	ofEasyCam cam;
};

#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) {};

ofEasyCam cam;

};

#include "ofApp.h"

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

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

	ofBackground(239);
	ofSetColor(39);
	ofSetLineWidth(2);
	ofNoFill();
	ofSetRectMode(ofRectMode::OF_RECTMODE_CENTER);
	ofEnableDepthTest();
}

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

	ofSeedRandom(39);
}

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

	this->cam.begin();
	ofRotateY(ofGetFrameNum() * 0.25);
	
	int size = 30;
	for (int i = 0; i < 4; i++) {

		float noise_param = ofRandom(100);
		for (int x = -150; x <= 150; x += size) {

			for (int y = -300; y <= 300; y += size) {

				int z = 165;
				float noise_value = ofNoise(noise_param, x * 0.005, y * 0.005, ofGetFrameNum() * 0.005);
				if (noise_value > 0.6) {

					z += ofMap(noise_value, 0.6, 1.0, 0, 300);
				}

				auto location = glm::vec3(x, y, z);

				ofFill();
				ofSetColor(239);
				ofDrawRectangle(location, size - 2, size - 2);

				ofNoFill();
				ofSetColor(39);
				ofDrawRectangle(location, size, size);
			}
		}

		ofRotateY(90);
	}

	this->cam.end();
}

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

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

#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(60);

ofSetWindowTitle("openframeworks");

ofBackground(239);

ofSetColor(39);

ofSetLineWidth(2);

ofNoFill();

ofSetRectMode(ofRectMode::OF_RECTMODE_CENTER);

ofEnableDepthTest();

}

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

void ofApp::update() {

ofSeedRandom(39);

}

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

void ofApp::draw() {

this->cam.begin();

ofRotateY(ofGetFrameNum() * 0.25);

int size = 30;

for (int i = 0; i < 4; i++) {

float noise_param = ofRandom(100);

for (int x = -150; x <= 150; x += size) {

for (int y = -300; y <= 300; y += size) {

int z = 165;

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

if (noise_value > 0.6) {

z += ofMap(noise_value, 0.6, 1.0, 0, 300);

}

auto location = glm::vec3(x, y, z);

ofFill();

ofSetColor(239);

ofDrawRectangle(location, size - 2, size - 2);

ofNoFill();

ofSetColor(39);

ofDrawRectangle(location, size, size);

}

ofRotateY(90);

}

this->cam.end();

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20190407

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