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2021年5月12日2021年5月12日

88888. Draw by openFrameworks

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88888.

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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 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 windowResized(int w, int h) {};

void dragEvent(ofDragInfo dragInfo) {};

void gotMessage(ofMessage msg) {};

};

#include "ofApp.h"

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

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

	ofBackground(0);
	ofEnableBlendMode(ofBlendMode::OF_BLENDMODE_ADD);

	ofNoFill();
	ofSetCircleResolution(36);
}

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

	ofSeedRandom(39);
}

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

	ofTranslate(ofGetWindowSize() * 0.5);

	vector<ofColor> base_color_list;
	vector<int> hex_list = { 0xf44336, 0x9C27B0, 0x3F51B5, 0x03A9F4, 0x009688, 0x8BC34A, 0xFFEB3B, 0xFF9800 };
	for (auto hex : hex_list) {

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

	int radius = 50;
	int width = 20;

	for (int x = -radius * 5; x <= radius * 5; x += radius * 2.5) {

		for (int y = -radius * 4; y <= radius * 4; y += radius * 4) {

			auto top = glm::vec3(x + 0, y - radius + width * 0.5, 0);
			auto bottom = glm::vec3(x + 0, y + radius - width * 0.5, 0);

			ofSetColor(255, 64);
			ofDrawCircle(top, radius);
			ofDrawCircle(top, radius - width);

			ofDrawCircle(bottom, radius);
			ofDrawCircle(bottom, radius - width);

			int deg_span = 30;
			int p = ofRandom(720);
			int speed = ofRandom(6, 10);
			for (int i = 0; i < 13; i++) {

				int param = (p + ofGetFrameNum() * speed + i * deg_span) % 720;
				ofColor face_color = base_color_list[ofRandom(base_color_list.size())];

				if (param < 360) {

					int deg_start = param / deg_span * deg_span + 270;
					for (int deg = deg_start + 1; deg <= deg_start + deg_span - 1; deg += 1) {

						vector<glm::vec3> vertices;
						vertices.push_back(bottom + glm::vec3((radius - width) * cos(deg * DEG_TO_RAD), (radius - width) * sin(deg * DEG_TO_RAD), 0));
						vertices.push_back(bottom + glm::vec3((radius - width) * cos((deg + 1) * DEG_TO_RAD), (radius - width) * sin((deg + 1) * DEG_TO_RAD), 0));
						vertices.push_back(bottom + glm::vec3(radius * cos((deg + 1) * DEG_TO_RAD), radius * sin((deg + 1) * DEG_TO_RAD), 0));
						vertices.push_back(bottom + glm::vec3(radius * cos(deg * DEG_TO_RAD), radius * sin(deg * DEG_TO_RAD), 0));

						ofMesh face, line;
						line.setMode(ofPrimitiveMode::OF_PRIMITIVE_LINES);

						face.addVertices(vertices);
						line.addVertices(vertices);

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

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

						if (deg == deg_start + 1) {

							line.addIndex(0); line.addIndex(3);
						}
						else if (deg == deg_start + deg_span - 1) {

							line.addIndex(1); line.addIndex(2);
						}

						ofSetColor(face_color, 64);
						face.draw();

						ofSetColor(face_color);
						line.drawWireframe();
					}
				}
				else {

					int deg_start = 720 - param / deg_span * deg_span + 90;
					for (int deg = deg_start - 1; deg >= deg_start - deg_span + 1; deg -= 1) {

						vector<glm::vec3> vertices;
						vertices.push_back(top + glm::vec3((radius - width) * cos(deg * DEG_TO_RAD), (radius - width) * sin(deg * DEG_TO_RAD), 0));
						vertices.push_back(top + glm::vec3((radius - width) * cos((deg - 1) * DEG_TO_RAD), (radius - width) * sin((deg - 1) * DEG_TO_RAD), 0));
						vertices.push_back(top + glm::vec3(radius * cos((deg - 1) * DEG_TO_RAD), radius * sin((deg - 1) * DEG_TO_RAD), 0));
						vertices.push_back(top + glm::vec3(radius * cos(deg * DEG_TO_RAD), radius * sin(deg * DEG_TO_RAD), 0));

						ofMesh face, line;
						line.setMode(ofPrimitiveMode::OF_PRIMITIVE_LINES);

						face.addVertices(vertices);
						line.addVertices(vertices);

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

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

						if (deg == deg_start - 1) {

							line.addIndex(0); line.addIndex(3);
						}
						else if (deg == deg_start - deg_span + 1) {

							line.addIndex(1); line.addIndex(2);
						}

						ofSetColor(face_color, 64);
						face.draw();

						ofSetColor(face_color);
						line.drawWireframe();
					}

				}
			}
		}
	}
}

//--------------------------------------------------------------
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(0);

ofEnableBlendMode(ofBlendMode::OF_BLENDMODE_ADD);

ofNoFill();

ofSetCircleResolution(36);

}

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

void ofApp::update() {

ofSeedRandom(39);

}

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

void ofApp::draw() {

ofTranslate(ofGetWindowSize() * 0.5);

vector<ofColor> base_color_list;

vector<int> hex_list = { 0xf44336, 0x9C27B0, 0x3F51B5, 0x03A9F4, 0x009688, 0x8BC34A, 0xFFEB3B, 0xFF9800 };

for (auto hex : hex_list) {

ofColor color;

color.setHex(hex);

base_color_list.push_back(color);

}

int radius = 50;

int width = 20;

for (int x = -radius * 5; x <= radius * 5; x += radius * 2.5) {

for (int y = -radius * 4; y <= radius * 4; y += radius * 4) {

auto top = glm::vec3(x + 0, y - radius + width * 0.5, 0);

auto bottom = glm::vec3(x + 0, y + radius - width * 0.5, 0);

ofSetColor(255, 64);

ofDrawCircle(top, radius);

ofDrawCircle(top, radius - width);

ofDrawCircle(bottom, radius);

ofDrawCircle(bottom, radius - width);

int deg_span = 30;

int p = ofRandom(720);

int speed = ofRandom(6, 10);

for (int i = 0; i < 13; i++) {

int param = (p + ofGetFrameNum() * speed + i * deg_span) % 720;

ofColor face_color = base_color_list[ofRandom(base_color_list.size())];

if (param < 360) {

int deg_start = param / deg_span * deg_span + 270;

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

vector<glm::vec3> vertices;

vertices.push_back(bottom + glm::vec3((radius - width) * cos(deg * DEG_TO_RAD), (radius - width) * sin(deg * DEG_TO_RAD), 0));

vertices.push_back(bottom + glm::vec3((radius - width) * cos((deg + 1) * DEG_TO_RAD), (radius - width) * sin((deg + 1) * DEG_TO_RAD), 0));

vertices.push_back(bottom + glm::vec3(radius * cos((deg + 1) * DEG_TO_RAD), radius * sin((deg + 1) * DEG_TO_RAD), 0));

vertices.push_back(bottom + glm::vec3(radius * cos(deg * DEG_TO_RAD), radius * sin(deg * DEG_TO_RAD), 0));

ofMesh face, line;

line.setMode(ofPrimitiveMode::OF_PRIMITIVE_LINES);

face.addVertices(vertices);

line.addVertices(vertices);

face.addIndex(0); face.addIndex(1); face.addIndex(2);

face.addIndex(0); face.addIndex(2); face.addIndex(3);

line.addIndex(0); line.addIndex(1);

line.addIndex(2); line.addIndex(3);

if (deg == deg_start + 1) {

line.addIndex(0); line.addIndex(3);

}

else if (deg == deg_start + deg_span - 1) {

line.addIndex(1); line.addIndex(2);

}

ofSetColor(face_color, 64);

face.draw();

ofSetColor(face_color);

line.drawWireframe();

}

else {

int deg_start = 720 - param / deg_span * deg_span + 90;

for (int deg = deg_start - 1; deg >= deg_start - deg_span + 1; deg -= 1) {

vector<glm::vec3> vertices;

vertices.push_back(top + glm::vec3((radius - width) * cos(deg * DEG_TO_RAD), (radius - width) * sin(deg * DEG_TO_RAD), 0));

vertices.push_back(top + glm::vec3((radius - width) * cos((deg - 1) * DEG_TO_RAD), (radius - width) * sin((deg - 1) * DEG_TO_RAD), 0));

vertices.push_back(top + glm::vec3(radius * cos((deg - 1) * DEG_TO_RAD), radius * sin((deg - 1) * DEG_TO_RAD), 0));

vertices.push_back(top + glm::vec3(radius * cos(deg * DEG_TO_RAD), radius * sin(deg * DEG_TO_RAD), 0));

ofMesh face, line;

line.setMode(ofPrimitiveMode::OF_PRIMITIVE_LINES);

face.addVertices(vertices);

line.addVertices(vertices);

face.addIndex(0); face.addIndex(1); face.addIndex(2);

face.addIndex(0); face.addIndex(2); face.addIndex(3);

line.addIndex(0); line.addIndex(1);

line.addIndex(2); line.addIndex(3);

if (deg == deg_start - 1) {

line.addIndex(0); line.addIndex(3);

}

else if (deg == deg_start - deg_span + 1) {

line.addIndex(1); line.addIndex(2);

}

ofSetColor(face_color, 64);

face.draw();

ofSetColor(face_color);

line.drawWireframe();

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20210512

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2021年5月1日2021年5月1日

(deg / 30) * 30. Draw by openFrameworks

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(deg / 30) * 30.

[ 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 setRingToMesh(ofMesh& face_target, ofMesh& frame_target, glm::vec3 location, float radius, float width, float height, int deg_start, int deg_end);

	ofEasyCam cam;
	ofMesh face, frame;
};

#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 setRingToMesh(ofMesh& face_target, ofMesh& frame_target, glm::vec3 location, float radius, float width, float height, int deg_start, int deg_end);

ofEasyCam cam;

ofMesh face, frame;

};

#include "ofApp.h"

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

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

	ofBackground(239);
	ofEnableDepthTest();

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

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

	ofSeedRandom(39);

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

	for (int x = -450; x <= 450; x += 450) {

		for (int y = -450; y <= 450; y += 450) {

			for (int radius = 70; radius <= 150; radius += 10) {

				this->setRingToMesh(this->face, this->frame, glm::vec3(x, y, 0), radius, 5, 60, 0, 360);
			}
		}
	}
}

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

	this->cam.begin();

	ofSetColor(39);
	this->face.draw();

	ofSetColor(239);
	this->frame.drawWireframe();

	this->cam.end();
}

//--------------------------------------------------------------
void ofApp::setRingToMesh(ofMesh& face_target, ofMesh& frame_target, glm::vec3 location, float radius, float width, float height, int deg_start, int deg_end) {

	if (deg_start > deg_end) {

		auto tmp = deg_start - 1;
		deg_start = deg_end;
		deg_end = tmp;
	}

	int index = face_target.getNumVertices();
	int deg_span = 5;

	int angle_x = ofMap(ofNoise(location.x, radius * 0.0012 + ofGetFrameNum() * 0.006), 0, 1, 0, 360 * 2);
	angle_x = (angle_x / 30) * 30;
	auto rotation_x = glm::rotate(glm::mat4(), angle_x * (float)DEG_TO_RAD, glm::vec3(1, 0, 0));

	int angle_y = ofMap(ofNoise(location.y, radius * 0.0012 + ofGetFrameNum() * 0.006), 0, 1, 0, 360 * 2);
	angle_y = (angle_y / 30) * 30;
	auto rotation_y = glm::rotate(glm::mat4(), angle_y * (float)DEG_TO_RAD, glm::vec3(0, 1, 0));
	for (int deg = deg_start; deg < deg_end; deg += deg_span) {

		auto face_index = face_target.getNumVertices();

		vector<glm::vec3> vertices;
		vertices.push_back(location + glm::vec4((radius + width * 0.5) * cos(deg * DEG_TO_RAD), (radius + width * 0.5) * sin(deg * DEG_TO_RAD), height * -0.5, 0) * rotation_y * rotation_x);
		vertices.push_back(location + glm::vec4((radius + width * 0.5) * cos((deg + deg_span) * DEG_TO_RAD), (radius + width * 0.5) * sin((deg + deg_span) * DEG_TO_RAD), height * -0.5, 0) * rotation_y * rotation_x);
		vertices.push_back(location + glm::vec4((radius + width * 0.5) * cos((deg + deg_span) * DEG_TO_RAD), (radius + width * 0.5) * sin((deg + deg_span) * DEG_TO_RAD), height * 0.5, 0) * rotation_y * rotation_x);
		vertices.push_back(location + glm::vec4((radius + width * 0.5) * cos(deg * DEG_TO_RAD), (radius + width * 0.5) * sin(deg * DEG_TO_RAD), height * 0.5, 0) * rotation_y * rotation_x);

		vertices.push_back(location + glm::vec4((radius - width * 0.5) * cos(deg * DEG_TO_RAD), (radius - width * 0.5) * sin(deg * DEG_TO_RAD), height * -0.5, 0) * rotation_y * rotation_x);
		vertices.push_back(location + glm::vec4((radius - width * 0.5) * cos((deg + deg_span) * DEG_TO_RAD), (radius - width * 0.5) * sin((deg + deg_span) * DEG_TO_RAD), height * -0.5, 0) * rotation_y * rotation_x);
		vertices.push_back(location + glm::vec4((radius - width * 0.5) * cos((deg + deg_span) * DEG_TO_RAD), (radius - width * 0.5) * sin((deg + deg_span) * DEG_TO_RAD), height * 0.5, 0) * rotation_y * rotation_x);
		vertices.push_back(location + glm::vec4((radius - width * 0.5) * cos(deg * DEG_TO_RAD), (radius - width * 0.5) * sin(deg * DEG_TO_RAD), height * 0.5, 0) * rotation_y * rotation_x);

		face_target.addVertices(vertices);

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

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

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

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

		auto frame_index = frame_target.getNumVertices();

		frame_target.addVertices(vertices);

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

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

ofEnableDepthTest();

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

}

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

void ofApp::update() {

ofSeedRandom(39);

this->face.clear();

this->frame.clear();

for (int x = -450; x <= 450; x += 450) {

for (int y = -450; y <= 450; y += 450) {

for (int radius = 70; radius <= 150; radius += 10) {

this->setRingToMesh(this->face, this->frame, glm::vec3(x, y, 0), radius, 5, 60, 0, 360);

}

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

void ofApp::draw() {

this->cam.begin();

ofSetColor(39);

this->face.draw();

ofSetColor(239);

this->frame.drawWireframe();

this->cam.end();

}

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

void ofApp::setRingToMesh(ofMesh& face_target, ofMesh& frame_target, glm::vec3 location, float radius, float width, float height, int deg_start, int deg_end) {

if (deg_start > deg_end) {

auto tmp = deg_start - 1;

deg_start = deg_end;

deg_end = tmp;

}

int index = face_target.getNumVertices();

int deg_span = 5;

int angle_x = ofMap(ofNoise(location.x, radius * 0.0012 + ofGetFrameNum() * 0.006), 0, 1, 0, 360 * 2);

angle_x = (angle_x / 30) * 30;

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

int angle_y = ofMap(ofNoise(location.y, radius * 0.0012 + ofGetFrameNum() * 0.006), 0, 1, 0, 360 * 2);

angle_y = (angle_y / 30) * 30;

auto rotation_y = glm::rotate(glm::mat4(), angle_y * (float)DEG_TO_RAD, glm::vec3(0, 1, 0));

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

auto face_index = face_target.getNumVertices();

vector<glm::vec3> vertices;

vertices.push_back(location + glm::vec4((radius + width * 0.5) * cos(deg * DEG_TO_RAD), (radius + width * 0.5) * sin(deg * DEG_TO_RAD), height * -0.5, 0) * rotation_y * rotation_x);

vertices.push_back(location + glm::vec4((radius + width * 0.5) * cos((deg + deg_span) * DEG_TO_RAD), (radius + width * 0.5) * sin((deg + deg_span) * DEG_TO_RAD), height * -0.5, 0) * rotation_y * rotation_x);

vertices.push_back(location + glm::vec4((radius + width * 0.5) * cos((deg + deg_span) * DEG_TO_RAD), (radius + width * 0.5) * sin((deg + deg_span) * DEG_TO_RAD), height * 0.5, 0) * rotation_y * rotation_x);

vertices.push_back(location + glm::vec4((radius + width * 0.5) * cos(deg * DEG_TO_RAD), (radius + width * 0.5) * sin(deg * DEG_TO_RAD), height * 0.5, 0) * rotation_y * rotation_x);

vertices.push_back(location + glm::vec4((radius - width * 0.5) * cos(deg * DEG_TO_RAD), (radius - width * 0.5) * sin(deg * DEG_TO_RAD), height * -0.5, 0) * rotation_y * rotation_x);

vertices.push_back(location + glm::vec4((radius - width * 0.5) * cos((deg + deg_span) * DEG_TO_RAD), (radius - width * 0.5) * sin((deg + deg_span) * DEG_TO_RAD), height * -0.5, 0) * rotation_y * rotation_x);

vertices.push_back(location + glm::vec4((radius - width * 0.5) * cos((deg + deg_span) * DEG_TO_RAD), (radius - width * 0.5) * sin((deg + deg_span) * DEG_TO_RAD), height * 0.5, 0) * rotation_y * rotation_x);

vertices.push_back(location + glm::vec4((radius - width * 0.5) * cos(deg * DEG_TO_RAD), (radius - width * 0.5) * sin(deg * DEG_TO_RAD), height * 0.5, 0) * rotation_y * rotation_x);

face_target.addVertices(vertices);

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

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

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

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

face_target.addIndex(face_index + 0); face_target.addIndex(face_index + 4); face_target.addIndex(face_index + 5);

face_target.addIndex(face_index + 0); face_target.addIndex(face_index + 5); face_target.addIndex(face_index + 1);

face_target.addIndex(face_index + 3); face_target.addIndex(face_index + 7); face_target.addIndex(face_index + 6);

face_target.addIndex(face_index + 3); face_target.addIndex(face_index + 6); face_target.addIndex(face_index + 2);

auto frame_index = frame_target.getNumVertices();

frame_target.addVertices(vertices);

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

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

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

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

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20210501

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2021年3月25日2021年3月25日

Ribbon tape. Draw by openFrameworks

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[ About ]
Ribbon tape.

[ 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) {};

	ofEasyCam cam;
};

#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) {};

ofEasyCam cam;

};

#include "ofApp.h"

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

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

	ofBackground(239);
	ofSetLineWidth(2);
	ofEnableDepthTest();
}

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

}

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

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

		color.setHex(hex);
		base_color_list.push_back(color);
	}
	int color_index = 0;

	this->cam.begin();

	for (int radius = 30; radius <= 300; radius += 10) {

		ofMesh mesh, frame;
		frame.setMode(ofPrimitiveMode::OF_PRIMITIVE_LINES);

		auto deg_max = ofMap(ofNoise(radius * 0.005 + ofGetFrameNum() * 0.015), 0, 1, 0, 450);
		if (deg_max > 360) { deg_max = 360; }

		for (int deg = 0; deg < deg_max; deg += 1) {

			auto location = glm::vec2(radius * cos(deg * DEG_TO_RAD), radius * sin(deg * DEG_TO_RAD));


			mesh.addVertex(glm::vec3(location, -30));
			mesh.addVertex(glm::vec3(location, 30));

			frame.addVertex(glm::vec3(location, -30));
			frame.addVertex(glm::vec3(location, 30));

			if (deg > 0) {

				mesh.addIndex(mesh.getNumVertices() - 1); mesh.addIndex(mesh.getNumVertices() - 2); mesh.addIndex(mesh.getNumVertices() - 4);
				mesh.addIndex(mesh.getNumVertices() - 1); mesh.addIndex(mesh.getNumVertices() - 3); mesh.addIndex(mesh.getNumVertices() - 4);

				frame.addIndex(frame.getNumVertices() - 1); frame.addIndex(frame.getNumVertices() - 3);
				frame.addIndex(frame.getNumVertices() - 2); frame.addIndex(frame.getNumVertices() - 4);
			}

			mesh.addColor(base_color_list[color_index]);
			mesh.addColor(base_color_list[color_index]);

			frame.addColor(ofColor(39));
			frame.addColor(ofColor(39));
		}

		frame.addIndex(0); frame.addIndex(1);
		frame.addIndex(frame.getNumVertices() - 1);	frame.addIndex(frame.getNumVertices() - 2);

		mesh.draw();
		frame.drawWireframe();

		color_index = (color_index + 1) % base_color_list.size();
	}



	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);

ofSetLineWidth(2);

ofEnableDepthTest();

}

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

void ofApp::update() {

}

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

void ofApp::draw() {

vector<ofColor> base_color_list;

ofColor color;

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

for (auto hex : hex_list) {

color.setHex(hex);

base_color_list.push_back(color);

}

int color_index = 0;

this->cam.begin();

for (int radius = 30; radius <= 300; radius += 10) {

ofMesh mesh, frame;

frame.setMode(ofPrimitiveMode::OF_PRIMITIVE_LINES);

auto deg_max = ofMap(ofNoise(radius * 0.005 + ofGetFrameNum() * 0.015), 0, 1, 0, 450);

if (deg_max > 360) { deg_max = 360; }

for (int deg = 0; deg < deg_max; deg += 1) {

auto location = glm::vec2(radius * cos(deg * DEG_TO_RAD), radius * sin(deg * DEG_TO_RAD));

mesh.addVertex(glm::vec3(location, -30));

mesh.addVertex(glm::vec3(location, 30));

frame.addVertex(glm::vec3(location, -30));

frame.addVertex(glm::vec3(location, 30));

if (deg > 0) {

mesh.addIndex(mesh.getNumVertices() - 1); mesh.addIndex(mesh.getNumVertices() - 2); mesh.addIndex(mesh.getNumVertices() - 4);

mesh.addIndex(mesh.getNumVertices() - 1); mesh.addIndex(mesh.getNumVertices() - 3); mesh.addIndex(mesh.getNumVertices() - 4);

frame.addIndex(frame.getNumVertices() - 1); frame.addIndex(frame.getNumVertices() - 3);

frame.addIndex(frame.getNumVertices() - 2); frame.addIndex(frame.getNumVertices() - 4);

}

mesh.addColor(base_color_list[color_index]);

frame.addColor(ofColor(39));

}

frame.addIndex(0); frame.addIndex(1);

frame.addIndex(frame.getNumVertices() - 1); frame.addIndex(frame.getNumVertices() - 2);

mesh.draw();

frame.drawWireframe();

color_index = (color_index + 1) % base_color_list.size();

}

this->cam.end();

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20210325

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