openframeworks – ページ 460 – プログラミング de 落描き

2019年11月1日2019年11月1日

Bend. openFrameworks

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[ About ]
板状のofMeshをグネグネと曲げる。

Bend.

[ 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;
	ofMesh mesh;
};

#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;

ofMesh mesh;

};

#include "ofApp.h"

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

	ofSetFrameRate(30);
	ofSetWindowTitle("openframeworks");

	ofBackground(239);
	ofSetColor(39);
	ofEnableDepthTest();
}

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

	this->mesh.clear();

	auto span = 1;
	auto len = 16;
	for (auto x = -100; x < 100; x += span) {

		auto angle_1 = ofMap(ofNoise(abs(x) * 0.02 + ofGetFrameNum() * 0.03), 0, 1, -PI, PI);
		auto rotation_1 = glm::rotate(glm::mat4(), angle_1, glm::vec3(1, 0, 0));

		auto angle_2 = ofMap(ofNoise(abs(x + span) * 0.02 + ofGetFrameNum() * 0.03), 0, 1, -PI, PI);
		auto rotation_2 = glm::rotate(glm::mat4(), angle_2, glm::vec3(1, 0, 0));


		this->mesh.addVertex(glm::vec4(len * 0.5, x, 0, 0) * rotation_1);
		this->mesh.addVertex(glm::vec4(len * -0.5, x, 0, 0) * rotation_1);
		this->mesh.addVertex(glm::vec4(len * -0.5, x + span, 0, 0) * rotation_2);
		this->mesh.addVertex(glm::vec4(len * 0.5, x + span, 0, 0) * rotation_2);

		auto index = this->mesh.getVertices().size() - 1;

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

		this->mesh.addIndex(index - 2);
		this->mesh.addIndex(index - 1);
		this->mesh.addIndex(index);
	}
}

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

	this->cam.begin();

	this->mesh.draw();

	this->cam.end();
}

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

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

#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(30);

ofSetWindowTitle("openframeworks");

ofBackground(239);

ofSetColor(39);

ofEnableDepthTest();

}

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

void ofApp::update() {

this->mesh.clear();

auto span = 1;

auto len = 16;

for (auto x = -100; x < 100; x += span) {

auto angle_1 = ofMap(ofNoise(abs(x) * 0.02 + ofGetFrameNum() * 0.03), 0, 1, -PI, PI);

auto rotation_1 = glm::rotate(glm::mat4(), angle_1, glm::vec3(1, 0, 0));

auto angle_2 = ofMap(ofNoise(abs(x + span) * 0.02 + ofGetFrameNum() * 0.03), 0, 1, -PI, PI);

auto rotation_2 = glm::rotate(glm::mat4(), angle_2, glm::vec3(1, 0, 0));

this->mesh.addVertex(glm::vec4(len * 0.5, x, 0, 0) * rotation_1);

this->mesh.addVertex(glm::vec4(len * -0.5, x, 0, 0) * rotation_1);

this->mesh.addVertex(glm::vec4(len * -0.5, x + span, 0, 0) * rotation_2);

this->mesh.addVertex(glm::vec4(len * 0.5, x + span, 0, 0) * rotation_2);

auto index = this->mesh.getVertices().size() - 1;

this->mesh.addIndex(index - 3);

this->mesh.addIndex(index - 2);

this->mesh.addIndex(index);

this->mesh.addIndex(index - 2);

this->mesh.addIndex(index - 1);

this->mesh.addIndex(index);

}

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

void ofApp::draw() {

this->cam.begin();

this->mesh.draw();

this->cam.end();

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20191101

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2019年10月31日2019年10月31日

Stacking. openFrameworks

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[ About ]
積み重ね。

Stacking.

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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 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) {};

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

	vector<ofMesh> mesh_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 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) {};

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

vector<ofMesh> mesh_list;

};

#include "ofApp.h"

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

	ofSetFrameRate(30);
	ofSetWindowTitle("openframeworks");

	ofBackground(239);
	ofSetBackgroundAuto(false);
	ofSetColor(239);
	ofNoFill();
}

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

	this->mesh_list.clear();

	vector<ofColor> color_list = {ofColor(39), ofColor(239)};
	ofColor color_1, color_2;
	int len = 200;

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

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

			ofMesh mesh;
			color_1 = color_list[int(ofRandom(color_list.size()))];
			color_2 = color_list[int(ofRandom(color_list.size()))];

			int param = ofRandom(100);

			if (ofRandom(1) < 0.5) {

				mesh.addVertex(glm::vec3(x, y, 0) + glm::vec3(this->make_point(len, param), 0));
				mesh.addColor(color_1);
				mesh.addVertex(glm::vec3(x, y, 0) + glm::vec3(this->make_point(len, param + 2), 0));
				mesh.addColor(color_1);
				mesh.addVertex(glm::vec3(x, y, 0) + glm::vec3(this->make_point(len, 100 - param - 2), 0));
				mesh.addColor(color_2);
				mesh.addVertex(glm::vec3(x, y, 0) + glm::vec3(this->make_point(len, 100 - param), 0));
				mesh.addColor(color_2);
			}
			else {

				mesh.addVertex(glm::vec3(x, y, 0) + glm::vec3(this->make_point(len, param), 0));
				mesh.addColor(color_1);
				mesh.addVertex(glm::vec3(x, y, 0) + glm::vec3(this->make_point(len, param + 2), 0));
				mesh.addColor(color_1);
				mesh.addVertex(glm::vec3(x, y, 0) + glm::vec3(this->make_point(len, 75 - param + 75 - 2), 0));
				mesh.addColor(color_2);
				mesh.addVertex(glm::vec3(x, y, 0) + glm::vec3(this->make_point(len, 75 - param + 75), 0));
				mesh.addColor(color_2);
			}

			mesh.addIndex(0);
			mesh.addIndex(1);
			mesh.addIndex(3);

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

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

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

	for (auto& mesh : this->mesh_list) {

		mesh.draw();

		ofBeginShape();
		for (auto& vertex : mesh.getVertices()) {

			ofVertex(vertex);
		}
		ofEndShape(true);
	}
}

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

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#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(30);

ofSetWindowTitle("openframeworks");

ofBackground(239);

ofSetBackgroundAuto(false);

ofSetColor(239);

ofNoFill();

}

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

void ofApp::update() {

this->mesh_list.clear();

vector<ofColor> color_list = {ofColor(39), ofColor(239)};

ofColor color_1, color_2;

int len = 200;

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

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

ofMesh mesh;

color_1 = color_list[int(ofRandom(color_list.size()))];

color_2 = color_list[int(ofRandom(color_list.size()))];

int param = ofRandom(100);

if (ofRandom(1) < 0.5) {

mesh.addVertex(glm::vec3(x, y, 0) + glm::vec3(this->make_point(len, param), 0));

mesh.addColor(color_1);

mesh.addVertex(glm::vec3(x, y, 0) + glm::vec3(this->make_point(len, param + 2), 0));

mesh.addColor(color_1);

mesh.addVertex(glm::vec3(x, y, 0) + glm::vec3(this->make_point(len, 100 - param - 2), 0));

mesh.addColor(color_2);

mesh.addVertex(glm::vec3(x, y, 0) + glm::vec3(this->make_point(len, 100 - param), 0));

mesh.addColor(color_2);

}

else {

mesh.addVertex(glm::vec3(x, y, 0) + glm::vec3(this->make_point(len, param), 0));

mesh.addColor(color_1);

mesh.addVertex(glm::vec3(x, y, 0) + glm::vec3(this->make_point(len, param + 2), 0));

mesh.addColor(color_1);

mesh.addVertex(glm::vec3(x, y, 0) + glm::vec3(this->make_point(len, 75 - param + 75 - 2), 0));

mesh.addColor(color_2);

mesh.addVertex(glm::vec3(x, y, 0) + glm::vec3(this->make_point(len, 75 - param + 75), 0));

mesh.addColor(color_2);

}

mesh.addIndex(0);

mesh.addIndex(1);

mesh.addIndex(3);

mesh.addIndex(1);

mesh.addIndex(2);

mesh.addIndex(3);

this->mesh_list.push_back(mesh);

}

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

void ofApp::draw() {

for (auto& mesh : this->mesh_list) {

mesh.draw();

ofBeginShape();

for (auto& vertex : mesh.getVertices()) {

ofVertex(vertex);

}

ofEndShape(true);

}

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

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 ]
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2019年10月30日2019年10月30日

Twisting ring. openFrameworks

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[ About ]
ねじれる輪。

Twisting ring.

[ 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) {};

	glm::vec3 make_point(float R, float r, float u, float v);

	ofEasyCam cam;
	ofMesh mesh;
};

#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) {};

glm::vec3 make_point(float R, float r, float u, float v);

ofEasyCam cam;

ofMesh mesh;

};

#include "ofApp.h"

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

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

	ofBackground(239);
	ofSetColor(39);
	ofEnableDepthTest();
}

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

	ofSeedRandom(39);

	this->mesh.clear();

	ofColor color_1, color_2;
	color_1.setHex(0xedf165);
	color_2.setHex(0x0e0b9d);
	for (auto deg = 0; deg < 360; deg += 1) {

		auto noise_location = glm::vec2(cos(deg * DEG_TO_RAD), sin(deg * DEG_TO_RAD));
		int u = ofMap(ofNoise(noise_location.x * 0.5, noise_location.y * 0.5, ofGetFrameNum() * 0.01), 0, 1, 0, 720);

		this->mesh.addVertex(this->make_point(250, 50, (u), deg));
		this->mesh.addColor(color_1);
		this->mesh.addVertex(this->make_point(250, 50, (u + 180), deg));
		this->mesh.addColor(color_2);
	}

	for (auto i = 0; i < this->mesh.getVertices().size(); i += 2) {

		auto index_0 = i;
		auto index_1 = (i + 1) % mesh.getVertices().size();
		auto index_2 = (i + 2) % mesh.getVertices().size();
		auto index_3 = (i + 3) % mesh.getVertices().size();

		mesh.addIndex(index_0);
		mesh.addIndex(index_1);
		mesh.addIndex(index_2);

		mesh.addIndex(index_3);
		mesh.addIndex(index_1);
		mesh.addIndex(index_2);
	}
}

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

	this->cam.begin();

	this->mesh.draw();

	this->cam.end();
}

//--------------------------------------------------------------
glm::vec3 ofApp::make_point(float R, float r, float u, float v) {

	// 数学デッサン教室 描いて楽しむ数学たち　P.31

	u *= DEG_TO_RAD;
	v *= DEG_TO_RAD;

	auto x = (R + r * cos(u)) * cos(v);
	auto y = (R + r * cos(u)) * sin(v);
	auto z = r * sin(u);

	return glm::vec3(x, y, z);
}

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

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

#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(60);

ofSetWindowTitle("openframeworks");

ofBackground(239);

ofSetColor(39);

ofEnableDepthTest();

}

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

void ofApp::update() {

ofSeedRandom(39);

this->mesh.clear();

ofColor color_1, color_2;

color_1.setHex(0xedf165);

color_2.setHex(0x0e0b9d);

for (auto deg = 0; deg < 360; deg += 1) {

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

int u = ofMap(ofNoise(noise_location.x * 0.5, noise_location.y * 0.5, ofGetFrameNum() * 0.01), 0, 1, 0, 720);

this->mesh.addVertex(this->make_point(250, 50, (u), deg));

this->mesh.addColor(color_1);

this->mesh.addVertex(this->make_point(250, 50, (u + 180), deg));

this->mesh.addColor(color_2);

}

for (auto i = 0; i < this->mesh.getVertices().size(); i += 2) {

auto index_0 = i;

auto index_1 = (i + 1) % mesh.getVertices().size();

auto index_2 = (i + 2) % mesh.getVertices().size();

auto index_3 = (i + 3) % mesh.getVertices().size();

mesh.addIndex(index_0);

mesh.addIndex(index_1);

mesh.addIndex(index_2);

mesh.addIndex(index_3);

mesh.addIndex(index_1);

mesh.addIndex(index_2);

}

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

void ofApp::draw() {

this->cam.begin();

this->mesh.draw();

this->cam.end();

}

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

glm::vec3 ofApp::make_point(float R, float r, float u, float v) {

// 数学デッサン教室描いて楽しむ数学たち　P.31

u *= DEG_TO_RAD;

v *= DEG_TO_RAD;

auto x = (R + r * cos(u)) * cos(v);

auto y = (R + r * cos(u)) * sin(v);

auto z = r * sin(u);

return glm::vec3(x, y, z);

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
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