2020年1月 – ページ 9 – プログラミング de 落描き

2020年1月7日2020年1月7日

Mix circle and rectangle. openFrameworks

[ Video ]

[ About ]
Processing勉強会の課題「円と四角」。

Mix circle and rectangle.

[ 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) {};

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

	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 windowResized(int w, int h) {};

void dragEvent(ofDragInfo dragInfo) {};

void gotMessage(ofMessage msg) {};

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

ofEasyCam cam;

};

#include "ofApp.h"

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

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

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

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

}

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

	this->cam.begin();

	int len = 300;
	int width = 20;
	for (int z = -len; z <= len; z += width) {

		ofMesh mesh, frame;
		frame.setMode(ofPrimitiveMode::OF_PRIMITIVE_LINES);
		for (int param = 0; param <= 100; param++) {

			int deg = param * 3.6 - 135;
			auto noise_value = ofNoise(cos(deg * DEG_TO_RAD) * 0.5, sin(deg * DEG_TO_RAD) * 0.5, z * 0.005 + ofGetFrameNum() * 0.008);

			vector<glm::vec3> vertices;
			if (noise_value > 0.45) {

				vertices.push_back(glm::vec3(this->make_point(len, param), z + width * 0.5));
				vertices.push_back(glm::vec3(this->make_point(len, param), z - width * 0.5));
			}
			else {

				vertices.push_back(glm::vec3(len * 0.4 * cos(deg * DEG_TO_RAD), len * 0.4 * sin(deg * DEG_TO_RAD), z + width * 0.5));
				vertices.push_back(glm::vec3(len * 0.4 * cos(deg * DEG_TO_RAD), len * 0.4 * sin(deg * DEG_TO_RAD), z - width * 0.5));
			}

			mesh.addVertices(vertices);
			frame.addVertices(vertices);

			int index = mesh.getNumVertices() - 1;
			if (param > 0) {

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

				frame.addIndex(index); frame.addIndex(index - 2);
				frame.addIndex(index - 1); frame.addIndex(index - 3);
			}
		}

		ofSetColor(ofMap(z, -len, len, 239, 39));
		mesh.draw();

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

		ofSetColor(239);
		frame.drawWireframe();
	}

	this->cam.end();
}

//--------------------------------------------------------------
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());
}

100

101

#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(60);

ofSetWindowTitle("openframeworks");

ofBackground(239);

ofSetLineWidth(2);

ofEnableDepthTest();

}

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

void ofApp::update() {

}

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

void ofApp::draw() {

this->cam.begin();

int len = 300;

int width = 20;

for (int z = -len; z <= len; z += width) {

ofMesh mesh, frame;

frame.setMode(ofPrimitiveMode::OF_PRIMITIVE_LINES);

for (int param = 0; param <= 100; param++) {

int deg = param * 3.6 - 135;

auto noise_value = ofNoise(cos(deg * DEG_TO_RAD) * 0.5, sin(deg * DEG_TO_RAD) * 0.5, z * 0.005 + ofGetFrameNum() * 0.008);

vector<glm::vec3> vertices;

if (noise_value > 0.45) {

vertices.push_back(glm::vec3(this->make_point(len, param), z + width * 0.5));

vertices.push_back(glm::vec3(this->make_point(len, param), z - width * 0.5));

}

else {

vertices.push_back(glm::vec3(len * 0.4 * cos(deg * DEG_TO_RAD), len * 0.4 * sin(deg * DEG_TO_RAD), z + width * 0.5));

vertices.push_back(glm::vec3(len * 0.4 * cos(deg * DEG_TO_RAD), len * 0.4 * sin(deg * DEG_TO_RAD), z - width * 0.5));

}

mesh.addVertices(vertices);

frame.addVertices(vertices);

int index = mesh.getNumVertices() - 1;

if (param > 0) {

mesh.addIndex(index); mesh.addIndex(index - 2); mesh.addIndex(index - 3);

mesh.addIndex(index); mesh.addIndex(index - 1); mesh.addIndex(index - 3);

frame.addIndex(index); frame.addIndex(index - 2);

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

}

ofSetColor(ofMap(z, -len, len, 239, 39));

mesh.draw();

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

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

ofSetColor(239);

frame.drawWireframe();

}

this->cam.end();

}

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

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/Insta20200107

2020年1月6日2020年1月6日

Belt on sphere. openFrameworks

[ Video ]

[ About ]
球体上を移動する帯を見比べる。

Belt on sphere.

[ 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;

	vector<ofMesh> mesh_list;
	vector<ofMesh> frame_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) {};

ofEasyCam cam;

vector<ofMesh> mesh_list;

vector<ofMesh> frame_list;

};

#include "ofApp.h"

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

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

	ofBackground(239);
	ofEnableDepthTest();
}

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

	ofSeedRandom(39);

	this->mesh_list.clear();
	this->frame_list.clear();

	for (int x = -160; x <= 160; x += 320) {

		for (int i = 0; i < 20; i++) {

			ofMesh mesh, frame;
			frame.setMode(ofPrimitiveMode::OF_PRIMITIVE_LINES);
			auto base = glm::vec3(x, 0, 0);
			auto param = glm::vec3();
			switch ((int)ofRandom(3)) {
			case 0:
				param = glm::vec3(5, 0, 0);
				break;
			case 1:
				param = glm::vec3(0, 5, 0);
				break;
			case 2:
				param = glm::vec3(0, 0, 5);
				break;
			}

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

			for (int k = 0; k < 50; k++) {

				auto location = glm::vec3(
					ofMap(ofNoise(noise_seed.x, (k + ofGetFrameNum()) * 0.01), 0, 1, -150, 150),
					ofMap(ofNoise(noise_seed.y, (k + ofGetFrameNum()) * 0.01), 0, 1, -150, 150),
					ofMap(ofNoise(noise_seed.z, (k + ofGetFrameNum()) * 0.01), 0, 1, -150, 150));

				location = glm::normalize(location) * 150;

				mesh.addVertex(base + location + param);
				mesh.addVertex(base + location - param);

				frame.addVertex(base + location + param);
				frame.addVertex(base + location - param);

				if (k > 0) {

					mesh.addIndex(k * 2); mesh.addIndex(k * 2 - 1); mesh.addIndex(k * 2 - 2);
					mesh.addIndex(k * 2); mesh.addIndex(k * 2 + 1); mesh.addIndex(k * 2 - 1);

					frame.addIndex(k * 2); frame.addIndex(k * 2 - 2);
					frame.addIndex(k * 2 + 1); frame.addIndex(k * 2 - 1);
				}
			}

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

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

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

	this->cam.begin();

	ofSetColor(39);
	ofDrawSphere(glm::vec3(-160, 0, 0), 135);

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

		ofSetColor(39);
		this->mesh_list[i].draw();

		ofSetColor(239);
		this->frame_list[i].drawWireframe();
	}

	this->cam.end();
}

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

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

100

101

102

#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(60);

ofSetWindowTitle("openframeworks");

ofBackground(239);

ofEnableDepthTest();

}

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

void ofApp::update() {

ofSeedRandom(39);

this->mesh_list.clear();

this->frame_list.clear();

for (int x = -160; x <= 160; x += 320) {

for (int i = 0; i < 20; i++) {

ofMesh mesh, frame;

frame.setMode(ofPrimitiveMode::OF_PRIMITIVE_LINES);

auto base = glm::vec3(x, 0, 0);

auto param = glm::vec3();

switch ((int)ofRandom(3)) {

case 0:

param = glm::vec3(5, 0, 0);

break;

case 1:

param = glm::vec3(0, 5, 0);

break;

case 2:

param = glm::vec3(0, 0, 5);

break;

}

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

for (int k = 0; k < 50; k++) {

auto location = glm::vec3(

ofMap(ofNoise(noise_seed.x, (k + ofGetFrameNum()) * 0.01), 0, 1, -150, 150),

ofMap(ofNoise(noise_seed.y, (k + ofGetFrameNum()) * 0.01), 0, 1, -150, 150),

ofMap(ofNoise(noise_seed.z, (k + ofGetFrameNum()) * 0.01), 0, 1, -150, 150));

location = glm::normalize(location) * 150;

mesh.addVertex(base + location + param);

mesh.addVertex(base + location - param);

frame.addVertex(base + location + param);

frame.addVertex(base + location - param);

if (k > 0) {

mesh.addIndex(k * 2); mesh.addIndex(k * 2 - 1); mesh.addIndex(k * 2 - 2);

mesh.addIndex(k * 2); mesh.addIndex(k * 2 + 1); mesh.addIndex(k * 2 - 1);

frame.addIndex(k * 2); frame.addIndex(k * 2 - 2);

frame.addIndex(k * 2 + 1); frame.addIndex(k * 2 - 1);

}

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

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

this->mesh_list.push_back(mesh);

this->frame_list.push_back(frame);

}

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

void ofApp::draw() {

this->cam.begin();

ofSetColor(39);

ofDrawSphere(glm::vec3(-160, 0, 0), 135);

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

ofSetColor(39);

this->mesh_list[i].draw();

ofSetColor(239);

this->frame_list[i].drawWireframe();

}

this->cam.end();

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20200106

2020年1月5日2020年1月5日

Rectangle tornado. openFrameworks

[ Video ]

[ About ]
四角トルネード！

Rectangle tornado.

[ 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) {};

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

	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 windowResized(int w, int h) {};

void dragEvent(ofDragInfo dragInfo) {};

void gotMessage(ofMessage msg) {};

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

ofEasyCam cam;

};

#include "ofApp.h"

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

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

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

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

}

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

	this->cam.begin();

	int len = 300;
	int width = 20;
	int param_span = 20;
	for (int z = -len; z <= len; z += width) {

		int n = ofMap(ofNoise(z * 0.0015 + ofGetFrameNum() * 0.01), 0, 1, 0, 200);
		for (int param_start = n; param_start < n + 100; param_start += param_span) {

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

			for (int param = param_start; param <= param_start + param_span * 0.5; param++) {

				auto side_1 = glm::vec3(this->make_point(len, param), z + width * 0.5);
				auto side_2 = glm::vec3(this->make_point(len, param), z - width * 0.5);

				mesh.addVertex(side_1);
				mesh.addVertex(side_2);

				frame.addVertex(side_1);
				frame.addVertex(side_2);

				int index = mesh.getNumVertices() - 1;
				if (param > param_start) {

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

					frame.addIndex(index); frame.addIndex(index - 2);
					frame.addIndex(index - 1); frame.addIndex(index - 3);
				}
			}

			ofSetColor(39);
			mesh.draw();

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

			ofSetColor(239);
			frame.drawWireframe();
		}
	}

	this->cam.end();
}

//--------------------------------------------------------------
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());
}

#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(60);

ofSetWindowTitle("openframeworks");

ofBackground(239);

ofSetLineWidth(2);

ofEnableDepthTest();

}

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

void ofApp::update() {

}

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

void ofApp::draw() {

this->cam.begin();

int len = 300;

int width = 20;

int param_span = 20;

for (int z = -len; z <= len; z += width) {

int n = ofMap(ofNoise(z * 0.0015 + ofGetFrameNum() * 0.01), 0, 1, 0, 200);

for (int param_start = n; param_start < n + 100; param_start += param_span) {

ofMesh mesh, frame;

frame.setMode(ofPrimitiveMode::OF_PRIMITIVE_LINES);

for (int param = param_start; param <= param_start + param_span * 0.5; param++) {

auto side_1 = glm::vec3(this->make_point(len, param), z + width * 0.5);

auto side_2 = glm::vec3(this->make_point(len, param), z - width * 0.5);

mesh.addVertex(side_1);

mesh.addVertex(side_2);

frame.addVertex(side_1);

frame.addVertex(side_2);

int index = mesh.getNumVertices() - 1;

if (param > param_start) {

mesh.addIndex(index); mesh.addIndex(index - 2); mesh.addIndex(index - 3);

mesh.addIndex(index); mesh.addIndex(index - 1); mesh.addIndex(index - 3);

frame.addIndex(index); frame.addIndex(index - 2);

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

}

ofSetColor(39);

mesh.draw();

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

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

ofSetColor(239);

frame.drawWireframe();

}

this->cam.end();

}

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

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/Insta20200105

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