programming – ページ 511 – プログラミング de 落描き

2019年5月31日

Color shadow. openFrameworks

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[ About ]
色付き影

Color 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(19);

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

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

		auto len = 20;
		auto radius = ofRandom(50 + i * 30, 80 + i * 25);
		auto deg_start = ofRandom(360) + ofGetFrameNum() * ofRandom(2, 4);
		auto deg_end = deg_start + ofRandom(100, 270);
		vector<glm::vec2> vertices_1, vertices_2;
		for (int deg = deg_start; deg < deg_end; deg++) {

			vertices_1.push_back(glm::vec2((radius - len * 0.5) * cos(deg * DEG_TO_RAD), (radius - len * 0.5) * sin(deg * DEG_TO_RAD)));
			vertices_2.push_back(glm::vec2((radius + len * 0.5) * cos(deg * DEG_TO_RAD), (radius + len * 0.5) * sin(deg * DEG_TO_RAD)));
		}
		reverse(vertices_2.begin(), vertices_2.end());

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

		ofBeginShape();
		ofVertices(vertices_1);
		ofVertices(vertices_2);
		ofEndShape(true);
	}

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

	// Blur Process
	cv::GaussianBlur(this->pixels_mat, this->pixels_mat, cv::Size(19, 15), 8, 6);
}

//--------------------------------------------------------------
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(-30, -30);
}

//--------------------------------------------------------------
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(19);

this->fbo.begin();

ofClear(0);

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

ofColor color;

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

auto len = 20;

auto radius = ofRandom(50 + i * 30, 80 + i * 25);

auto deg_start = ofRandom(360) + ofGetFrameNum() * ofRandom(2, 4);

auto deg_end = deg_start + ofRandom(100, 270);

vector<glm::vec2> vertices_1, vertices_2;

for (int deg = deg_start; deg < deg_end; deg++) {

vertices_1.push_back(glm::vec2((radius - len * 0.5) * cos(deg * DEG_TO_RAD), (radius - len * 0.5) * sin(deg * DEG_TO_RAD)));

vertices_2.push_back(glm::vec2((radius + len * 0.5) * cos(deg * DEG_TO_RAD), (radius + len * 0.5) * sin(deg * DEG_TO_RAD)));

}

reverse(vertices_2.begin(), vertices_2.end());

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

ofSetColor(color);

ofBeginShape();

ofVertices(vertices_1);

ofVertices(vertices_2);

ofEndShape(true);

}

this->fbo.end();

// Copy Fbo To pixels

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

// Blur Process

cv::GaussianBlur(this->pixels_mat, this->pixels_mat, cv::Size(19, 15), 8, 6);

}

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

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(-30, -30);

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20190531

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2019年5月30日2019年5月30日

Split circle that rotate. openFrameworks

[ Video ]

[ About ]
回転する分割された円。

Split circle that rotate.

[ 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) {};
};

#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) {};

};

#include "ofApp.h"

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

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

	ofBackground(239);
	ofSetLineWidth(3);
	ofEnableDepthTest();
}

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

}

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

	auto n = 9;
	for (int x = 120; x <= 720; x += 240) {

		for (int y = 120; y <= 720; y += 240) {

			ofPushMatrix();
			ofTranslate(x, y);

			auto radius = 90;
			auto deg_start = 0;
			auto deg_end = deg_start + 180;
			auto deg_span = 10;
			for (int deg = deg_start; deg < deg_end; deg += deg_span) {

				auto center = glm::vec2(radius * cos((deg + deg_span / 2) * DEG_TO_RAD), 0);
				auto rotate = ofGetFrameNum() + deg + n * 40;
				if (rotate % 360 > 180) {

					rotate = 0;
				}

				ofPushMatrix();
				ofTranslate(center);
				ofRotateX(rotate);

				vector<glm::vec2> vertices_1, vertices_2;
				for (int tmp_deg = deg + 1; tmp_deg < deg + deg_span; tmp_deg++) {

					auto point = glm::vec2(radius * cos(tmp_deg * DEG_TO_RAD), radius * sin(tmp_deg * DEG_TO_RAD));
					vertices_1.push_back(point - center);
					vertices_2.push_back(glm::vec2(point.x, -point.y) - center);
				}

				reverse(vertices_2.begin(), vertices_2.end());

				ofFill();
				ofSetColor(239);
				ofBeginShape();
				ofVertices(vertices_1);
				ofVertices(vertices_2);
				ofEndShape(true);

				ofNoFill();
				ofSetColor(39);
				ofBeginShape();
				ofVertices(vertices_1);
				ofVertices(vertices_2);
				ofEndShape(true);

				ofPopMatrix();
			}

			ofPopMatrix();
			n--;
		}
	}
}

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

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

#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(60);

ofSetWindowTitle("openframeworks");

ofBackground(239);

ofSetLineWidth(3);

ofEnableDepthTest();

}

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

void ofApp::update() {

}

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

void ofApp::draw() {

auto n = 9;

for (int x = 120; x <= 720; x += 240) {

for (int y = 120; y <= 720; y += 240) {

ofPushMatrix();

ofTranslate(x, y);

auto radius = 90;

auto deg_start = 0;

auto deg_end = deg_start + 180;

auto deg_span = 10;

for (int deg = deg_start; deg < deg_end; deg += deg_span) {

auto center = glm::vec2(radius * cos((deg + deg_span / 2) * DEG_TO_RAD), 0);

auto rotate = ofGetFrameNum() + deg + n * 40;

if (rotate % 360 > 180) {

rotate = 0;

}

ofPushMatrix();

ofTranslate(center);

ofRotateX(rotate);

vector<glm::vec2> vertices_1, vertices_2;

for (int tmp_deg = deg + 1; tmp_deg < deg + deg_span; tmp_deg++) {

auto point = glm::vec2(radius * cos(tmp_deg * DEG_TO_RAD), radius * sin(tmp_deg * DEG_TO_RAD));

vertices_1.push_back(point - center);

vertices_2.push_back(glm::vec2(point.x, -point.y) - center);

}

reverse(vertices_2.begin(), vertices_2.end());

ofFill();

ofSetColor(239);

ofBeginShape();

ofVertices(vertices_1);

ofVertices(vertices_2);

ofEndShape(true);

ofNoFill();

ofSetColor(39);

ofBeginShape();

ofVertices(vertices_1);

ofVertices(vertices_2);

ofEndShape(true);

ofPopMatrix();

}

ofPopMatrix();

n--;

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20190530

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2019年5月29日2019年5月29日

Sphere moving log. openFrameworks

[ Video ]

[ About ]
球体の移動ログを輪っかで表す。

Sphere moving log.

[ 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) {};
};

#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) {};

};

#include "ofApp.h"

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

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

	ofBackground(239);
	ofSetLineWidth(3);
	ofEnableDepthTest();
}

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

	ofSeedRandom(39);
}

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

	for (int n = 0; n < 2; n++) {

		auto noise_seed = glm::vec2(ofRandom(1000), ofRandom(1000));
		auto radius = 50;
		auto len = 15;
		auto noise_step = 0.005;
		auto frame_scale = 3;
		auto base = glm::vec3(ofMap(ofNoise(noise_seed.x, (ofGetFrameNum() + len * frame_scale) * noise_step), 0, 1, 0, ofGetWidth()), ofMap(ofNoise(noise_seed.y, (ofGetFrameNum() + len * frame_scale) * noise_step), 0, 1, n * 360, (n + 1) * 360), 0);

		ofFill();
		ofSetColor(139);
		ofDrawSphere(base, radius);

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

			base = glm::vec3(ofMap(ofNoise(noise_seed.x, (ofGetFrameNum() + i * frame_scale) * noise_step), 0, 1, 0, ofGetWidth()), ofMap(ofNoise(noise_seed.y, (ofGetFrameNum() + i * frame_scale) * noise_step), 0, 1, n * 360, (n + 1) * 360), 0);
			auto prev_base = glm::vec3(ofMap(ofNoise(noise_seed.x, (ofGetFrameNum() + i * frame_scale - 1) * noise_step), 0, 1, 0, ofGetWidth()), ofMap(ofNoise(noise_seed.y, (ofGetFrameNum() + i * frame_scale - 1) * noise_step), 0, 1, n * 360, (n + 1) * 360), 0);
			auto direction = base - prev_base;
			auto theta = atan2(direction.y, direction.x);

			ofNoFill();
			ofSetColor(39, ofMap(i, 0, len, 32, 255));
			ofBeginShape();
			for (int deg = 0; deg < 360; deg += 3) {

				auto point = glm::vec3(radius * 1.2 * cos(deg * DEG_TO_RAD), radius * 1.2 * sin(deg * DEG_TO_RAD), 0);
				auto rotation_x = glm::rotate(glm::mat4(), (float)(PI * 0.5), glm::vec3(1, 0, 0));
				auto rotation_y = glm::rotate(glm::mat4(), (float)(theta + PI * 0.5), glm::vec3(0, 1, 0));
				point = base + glm::vec4(point, 0) * rotation_y * rotation_x;

				ofVertex(point);
			}
			ofEndShape(true);
		}
	}
}

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

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

#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(60);

ofSetWindowTitle("openframeworks");

ofBackground(239);

ofSetLineWidth(3);

ofEnableDepthTest();

}

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

void ofApp::update() {

ofSeedRandom(39);

}

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

void ofApp::draw() {

for (int n = 0; n < 2; n++) {

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

auto radius = 50;

auto len = 15;

auto noise_step = 0.005;

auto frame_scale = 3;

auto base = glm::vec3(ofMap(ofNoise(noise_seed.x, (ofGetFrameNum() + len * frame_scale) * noise_step), 0, 1, 0, ofGetWidth()), ofMap(ofNoise(noise_seed.y, (ofGetFrameNum() + len * frame_scale) * noise_step), 0, 1, n * 360, (n + 1) * 360), 0);

ofFill();

ofSetColor(139);

ofDrawSphere(base, radius);

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

base = glm::vec3(ofMap(ofNoise(noise_seed.x, (ofGetFrameNum() + i * frame_scale) * noise_step), 0, 1, 0, ofGetWidth()), ofMap(ofNoise(noise_seed.y, (ofGetFrameNum() + i * frame_scale) * noise_step), 0, 1, n * 360, (n + 1) * 360), 0);

auto prev_base = glm::vec3(ofMap(ofNoise(noise_seed.x, (ofGetFrameNum() + i * frame_scale - 1) * noise_step), 0, 1, 0, ofGetWidth()), ofMap(ofNoise(noise_seed.y, (ofGetFrameNum() + i * frame_scale - 1) * noise_step), 0, 1, n * 360, (n + 1) * 360), 0);

auto direction = base - prev_base;

auto theta = atan2(direction.y, direction.x);

ofNoFill();

ofSetColor(39, ofMap(i, 0, len, 32, 255));

ofBeginShape();

for (int deg = 0; deg < 360; deg += 3) {

auto point = glm::vec3(radius * 1.2 * cos(deg * DEG_TO_RAD), radius * 1.2 * sin(deg * DEG_TO_RAD), 0);

auto rotation_x = glm::rotate(glm::mat4(), (float)(PI * 0.5), glm::vec3(1, 0, 0));

auto rotation_y = glm::rotate(glm::mat4(), (float)(theta + PI * 0.5), glm::vec3(0, 1, 0));

point = base + glm::vec4(point, 0) * rotation_y * rotation_x;

ofVertex(point);

}

ofEndShape(true);

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20190529

[ほしいものリスト]
Amazon

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