triangle – ページ 3 – プログラミング de 落描き

2020年3月8日2020年3月8日

Cube made of triangular pyramids. openFrameworks

[ Video ]

[ About ]
三角錐で出来た立方体。

Cube made of triangular pyramids.

[ 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;
	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) {};

ofEasyCam cam;

ofMesh face, frame;

};

#include "ofApp.h"

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

	ofSetFrameRate(30);
	ofSetWindowTitle("openFrameworks");

	ofBackground(239);
	ofEnableDepthTest();

	this->frame.setMode(ofPrimitiveMode::OF_PRIMITIVE_LINES);
}
//--------------------------------------------------------------
void ofApp::update() {

	ofSeedRandom(39);

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

	int len = 100;

	for (int r = 0; r < 6; r++) {

		vector<glm::vec3> vertices;
		vertices.push_back(glm::vec3());
		vertices.push_back(glm::vec3(-len * 0.5, -len * 0.5, -len * 0.5));
		vertices.push_back(glm::vec3(len * 0.5, -len * 0.5, -len * 0.5));
		vertices.push_back(glm::vec3(len * 0.5, -len * 0.5, len * 0.5));
		vertices.push_back(glm::vec3(-len * 0.5, -len * 0.5, len * 0.5));
	
		int angle;
		glm::highp_mat4 rotation;
		float noise_value;
		if (r < 4) {
			angle = r * 90;
			rotation = glm::rotate(glm::mat4(), (float)(angle * DEG_TO_RAD), glm::vec3(1, 0, 0));
			noise_value = ofNoise(ofRandom(1000), ofGetFrameNum() * 0.01);

		}
		else {

			angle = r == 5 ? 90 : 270;
			rotation = glm::rotate(glm::mat4(), (float)(angle * DEG_TO_RAD), glm::vec3(0, 0, 1));
			noise_value = ofNoise(ofRandom(1000), ofGetFrameNum() * 0.01);
		}

		auto rotation_y = glm::rotate(glm::mat4(), (float)(noise_value < 0.55 ? 0 : ofMap(noise_value, 0.55, 1, 0, 12)), glm::vec3(0, 1, 0));
		for (auto& vertex : vertices) { 

			vertex = (glm::vec4(vertex, 0) + glm::vec4(0, noise_value < 0.48 ? -1 : ofMap(noise_value, 0.48, 1, -1, -150), 0, 0)) * rotation_y * rotation;
		}

		auto index = this->face.getNumVertices();
		this->face.addVertices(vertices);
		this->frame.addVertices(vertices);

		this->face.addIndex(index + 0); this->face.addIndex(index + 1); this->face.addIndex(index + 2);
		this->face.addIndex(index + 0); this->face.addIndex(index + 2); this->face.addIndex(index + 3);
		this->face.addIndex(index + 0); this->face.addIndex(index + 3); this->face.addIndex(index + 4);
		this->face.addIndex(index + 0); this->face.addIndex(index + 4); this->face.addIndex(index + 1);

		this->face.addIndex(index + 1); this->face.addIndex(index + 2); this->face.addIndex(index + 3);
		this->face.addIndex(index + 1); this->face.addIndex(index + 3); this->face.addIndex(index + 4);

		this->frame.addIndex(index + 0); this->frame.addIndex(index + 1);
		this->frame.addIndex(index + 0); this->frame.addIndex(index + 2);
		this->frame.addIndex(index + 0); this->frame.addIndex(index + 3);
		this->frame.addIndex(index + 0); this->frame.addIndex(index + 4);

		this->frame.addIndex(index + 1); this->frame.addIndex(index + 2);
		this->frame.addIndex(index + 2); this->frame.addIndex(index + 3);
		this->frame.addIndex(index + 3); this->frame.addIndex(index + 4);
		this->frame.addIndex(index + 4); this->frame.addIndex(index + 1);
	}
}

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

	this->cam.begin();
	ofRotateY(ofGetFrameNum() * 0.85);
	ofRotateX(ofGetFrameNum() * 0.5);

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

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

	this->cam.end();
}

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

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

100

#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(30);

ofSetWindowTitle("openFrameworks");

ofBackground(239);

ofEnableDepthTest();

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

}

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

void ofApp::update() {

ofSeedRandom(39);

this->face.clear();

this->frame.clear();

int len = 100;

for (int r = 0; r < 6; r++) {

vector<glm::vec3> vertices;

vertices.push_back(glm::vec3());

vertices.push_back(glm::vec3(-len * 0.5, -len * 0.5, -len * 0.5));

vertices.push_back(glm::vec3(len * 0.5, -len * 0.5, -len * 0.5));

vertices.push_back(glm::vec3(len * 0.5, -len * 0.5, len * 0.5));

vertices.push_back(glm::vec3(-len * 0.5, -len * 0.5, len * 0.5));

int angle;

glm::highp_mat4 rotation;

float noise_value;

if (r < 4) {

angle = r * 90;

rotation = glm::rotate(glm::mat4(), (float)(angle * DEG_TO_RAD), glm::vec3(1, 0, 0));

noise_value = ofNoise(ofRandom(1000), ofGetFrameNum() * 0.01);

}

else {

angle = r == 5 ? 90 : 270;

rotation = glm::rotate(glm::mat4(), (float)(angle * DEG_TO_RAD), glm::vec3(0, 0, 1));

noise_value = ofNoise(ofRandom(1000), ofGetFrameNum() * 0.01);

}

auto rotation_y = glm::rotate(glm::mat4(), (float)(noise_value < 0.55 ? 0 : ofMap(noise_value, 0.55, 1, 0, 12)), glm::vec3(0, 1, 0));

for (auto& vertex : vertices) {

vertex = (glm::vec4(vertex, 0) + glm::vec4(0, noise_value < 0.48 ? -1 : ofMap(noise_value, 0.48, 1, -1, -150), 0, 0)) * rotation_y * rotation;

}

auto index = this->face.getNumVertices();

this->face.addVertices(vertices);

this->frame.addVertices(vertices);

this->face.addIndex(index + 0); this->face.addIndex(index + 1); this->face.addIndex(index + 2);

this->face.addIndex(index + 0); this->face.addIndex(index + 2); this->face.addIndex(index + 3);

this->face.addIndex(index + 0); this->face.addIndex(index + 3); this->face.addIndex(index + 4);

this->face.addIndex(index + 0); this->face.addIndex(index + 4); this->face.addIndex(index + 1);

this->face.addIndex(index + 1); this->face.addIndex(index + 2); this->face.addIndex(index + 3);

this->face.addIndex(index + 1); this->face.addIndex(index + 3); this->face.addIndex(index + 4);

this->frame.addIndex(index + 0); this->frame.addIndex(index + 1);

this->frame.addIndex(index + 0); this->frame.addIndex(index + 2);

this->frame.addIndex(index + 0); this->frame.addIndex(index + 3);

this->frame.addIndex(index + 0); this->frame.addIndex(index + 4);

this->frame.addIndex(index + 1); this->frame.addIndex(index + 2);

this->frame.addIndex(index + 2); this->frame.addIndex(index + 3);

this->frame.addIndex(index + 3); this->frame.addIndex(index + 4);

this->frame.addIndex(index + 4); this->frame.addIndex(index + 1);

}

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

void ofApp::draw() {

this->cam.begin();

ofRotateY(ofGetFrameNum() * 0.85);

ofRotateX(ofGetFrameNum() * 0.5);

ofSetColor(39);

this->face.draw();

ofSetColor(239);

this->frame.drawWireframe();

this->cam.end();

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20200308

2019年12月9日2019年12月9日

Soaring triangles. openFrameworks

[ Video ]

[ About ]
舞い上がる三角形。

Soaring triangles.

[ 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;
	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 windowResized(int w, int h) {};

void dragEvent(ofDragInfo dragInfo) {};

void gotMessage(ofMessage msg) {};

ofEasyCam cam;

ofMesh mesh;

};

#include "ofApp.h"

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

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

	ofBackground(239);
	ofEnableDepthTest();
}

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

	ofSeedRandom(39);
	this->mesh.clear();

	int span = 10;
	for (int x = -600; x <= 600; x += span) {

		for (int y = -600; y <= 600; y += span) {

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

				if (i == 0) {
				
					this->mesh.addVertex(glm::vec3(x - span * 0.5, y - span * 0.5, 0));
					this->mesh.addVertex(glm::vec3(x + span * 0.5, y - span * 0.5, 0));
					this->mesh.addVertex(glm::vec3(x - span * 0.5, y + span * 0.5, 0));
				}
				else {

					this->mesh.addVertex(glm::vec3(x + span * 0.5, y - span * 0.5, 0));
					this->mesh.addVertex(glm::vec3(x + span * 0.5, y + span * 0.5, 0));
					this->mesh.addVertex(glm::vec3(x - span * 0.5, y + span * 0.5, 0));
				}

				int index = mesh.getNumVertices() - 3;
				auto avg = (mesh.getVertex(index) + mesh.getVertex(index + 1) + mesh.getVertex(index + 2)) / 3;
				auto z = 0;
				auto noise_value = ofNoise(glm::vec4(avg * 0.01, ofGetFrameNum() * 0.005));
				if (noise_value > 0.65) {

					z = ofMap(noise_value, 0.65, 1, 0, 300);
				}

				auto angle_x = ofMap(z, 0, 300, 0, PI * 10);
				auto angle_y = ofMap(z, 0, 300, 0, PI * 10);
				auto angle_z = ofMap(z, 0, 300, 0, PI * 10);

				auto rotation_x = glm::rotate(glm::mat4(), angle_x, glm::vec3(1, 0, 0));
				auto rotation_y = glm::rotate(glm::mat4(), angle_y, glm::vec3(0, 1, 0));
				auto rotation_z = glm::rotate(glm::mat4(), angle_z, glm::vec3(0, 0, 1));

				for (int k = index; k < this->mesh.getNumVertices(); k++) {

					auto vertex = this->mesh.getVertex(k);
					vertex -= avg;
					vertex = glm::vec4(vertex, 0) * rotation_z * rotation_y * rotation_x;
					vertex += avg + glm::vec3(0, 0, z);
					this->mesh.setVertex(k, vertex);
				}
			}
		}
	}
}

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

	this->cam.begin();

	ofSetColor(39);
	this->mesh.drawFaces();

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

	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);

ofEnableDepthTest();

}

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

void ofApp::update() {

ofSeedRandom(39);

this->mesh.clear();

int span = 10;

for (int x = -600; x <= 600; x += span) {

for (int y = -600; y <= 600; y += span) {

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

if (i == 0) {

this->mesh.addVertex(glm::vec3(x - span * 0.5, y - span * 0.5, 0));

this->mesh.addVertex(glm::vec3(x + span * 0.5, y - span * 0.5, 0));

this->mesh.addVertex(glm::vec3(x - span * 0.5, y + span * 0.5, 0));

}

else {

this->mesh.addVertex(glm::vec3(x + span * 0.5, y - span * 0.5, 0));

this->mesh.addVertex(glm::vec3(x + span * 0.5, y + span * 0.5, 0));

this->mesh.addVertex(glm::vec3(x - span * 0.5, y + span * 0.5, 0));

}

int index = mesh.getNumVertices() - 3;

auto avg = (mesh.getVertex(index) + mesh.getVertex(index + 1) + mesh.getVertex(index + 2)) / 3;

auto z = 0;

auto noise_value = ofNoise(glm::vec4(avg * 0.01, ofGetFrameNum() * 0.005));

if (noise_value > 0.65) {

z = ofMap(noise_value, 0.65, 1, 0, 300);

}

auto angle_x = ofMap(z, 0, 300, 0, PI * 10);

auto angle_y = ofMap(z, 0, 300, 0, PI * 10);

auto angle_z = ofMap(z, 0, 300, 0, PI * 10);

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

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

auto rotation_z = glm::rotate(glm::mat4(), angle_z, glm::vec3(0, 0, 1));

for (int k = index; k < this->mesh.getNumVertices(); k++) {

auto vertex = this->mesh.getVertex(k);

vertex -= avg;

vertex = glm::vec4(vertex, 0) * rotation_z * rotation_y * rotation_x;

vertex += avg + glm::vec3(0, 0, z);

this->mesh.setVertex(k, vertex);

}

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

void ofApp::draw() {

this->cam.begin();

ofSetColor(39);

this->mesh.drawFaces();

ofSetColor(239);

this->mesh.drawWireframe();

this->cam.end();

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20191209

2019年10月28日2019年10月28日

Regular octahedron. openFrameworks

[ Video ]

[ About ]
正八面体。

Regular octahedron.

[ 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;
	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 windowResized(int w, int h) {};

void dragEvent(ofDragInfo dragInfo) {};

void gotMessage(ofMessage msg) {};

ofEasyCam cam;

ofMesh mesh;

};

#include "ofApp.h"

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

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

	ofBackground(239);
	ofEnableDepthTest();

	this->mesh.addVertex(glm::vec3(0, 50, 0));
	this->mesh.addVertex(glm::vec3(-50, 0, 0));
	this->mesh.addVertex(glm::vec3(0, 0, -50));
	this->mesh.addVertex(glm::vec3(50, 0, 0));
	this->mesh.addVertex(glm::vec3(0, 0, 50));
	this->mesh.addVertex(glm::vec3(0, -50, 0));
	
	this->mesh.addIndex(0);
	this->mesh.addIndex(1);
	this->mesh.addIndex(2);

	this->mesh.addIndex(0);
	this->mesh.addIndex(2);
	this->mesh.addIndex(3);

	this->mesh.addIndex(0);
	this->mesh.addIndex(3);
	this->mesh.addIndex(4);

	this->mesh.addIndex(0);
	this->mesh.addIndex(4);
	this->mesh.addIndex(1);

	this->mesh.addIndex(5);
	this->mesh.addIndex(1);
	this->mesh.addIndex(2);

	this->mesh.addIndex(5);
	this->mesh.addIndex(2);
	this->mesh.addIndex(3);

	this->mesh.addIndex(5);
	this->mesh.addIndex(3);
	this->mesh.addIndex(4);

	this->mesh.addIndex(5);
	this->mesh.addIndex(4);
	this->mesh.addIndex(1);
}

//--------------------------------------------------------------
void ofApp::update() {
	
	ofSeedRandom(39);
}

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

	this->cam.begin();

	ofColor color_0, color_1, color_2;
	for (auto x = ofGetWidth() * -0.5; x <= ofGetWidth() * 0.5; x += 120) {

		for (auto y = ofGetHeight() * -0.5; y <= ofGetHeight() * 0.5; y += 120) {

			auto hue = ofMap(y, ofGetHeight() * 0.5, ofGetHeight() * -0.5, 0, 240);
			color_0.setHsb(255, 0, 255);
			color_1.setHsb(hue, 255, 128);
			color_2.setHsb(hue, 255, 230);

			this->mesh.clearColors();
			this->mesh.addColor(color_1);
			for (int i = 0; i < 4; i++) {
			
				this->mesh.addColor(color_2);
			}
			this->mesh.addColor(color_1);

			ofPushMatrix();
			ofTranslate(x, y);
			ofRotateY(ofMap(ofNoise(ofRandom(1000), ofGetFrameNum() * 0.005), 0, 1, 0, 360));
			ofRotateX(ofMap(ofNoise(ofRandom(1000), ofGetFrameNum() * 0.005), 0, 1, 0, 360));

			this->mesh.drawFaces();
			
			this->mesh.clearColors();
			for (int i = 0; i < 6; i++) {
			
				this->mesh.addColor(color_0);
			}
			this->mesh.drawWireframe();


			ofPopMatrix();
		}
	}

	this->cam.end();
}

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

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

100

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103

104

105

106

107

108

#include "ofApp.h"

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

void ofApp::setup() {

ofSetFrameRate(60);

ofSetWindowTitle("openframeworks");

ofBackground(239);

ofEnableDepthTest();

this->mesh.addVertex(glm::vec3(0, 50, 0));

this->mesh.addVertex(glm::vec3(-50, 0, 0));

this->mesh.addVertex(glm::vec3(0, 0, -50));

this->mesh.addVertex(glm::vec3(50, 0, 0));

this->mesh.addVertex(glm::vec3(0, 0, 50));

this->mesh.addVertex(glm::vec3(0, -50, 0));

this->mesh.addIndex(0);

this->mesh.addIndex(1);

this->mesh.addIndex(2);

this->mesh.addIndex(0);

this->mesh.addIndex(2);

this->mesh.addIndex(3);

this->mesh.addIndex(0);

this->mesh.addIndex(3);

this->mesh.addIndex(4);

this->mesh.addIndex(0);

this->mesh.addIndex(4);

this->mesh.addIndex(1);

this->mesh.addIndex(5);

this->mesh.addIndex(1);

this->mesh.addIndex(2);

this->mesh.addIndex(5);

this->mesh.addIndex(2);

this->mesh.addIndex(3);

this->mesh.addIndex(5);

this->mesh.addIndex(3);

this->mesh.addIndex(4);

this->mesh.addIndex(5);

this->mesh.addIndex(4);

this->mesh.addIndex(1);

}

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

void ofApp::update() {

ofSeedRandom(39);

}

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

void ofApp::draw() {

this->cam.begin();

ofColor color_0, color_1, color_2;

for (auto x = ofGetWidth() * -0.5; x <= ofGetWidth() * 0.5; x += 120) {

for (auto y = ofGetHeight() * -0.5; y <= ofGetHeight() * 0.5; y += 120) {

auto hue = ofMap(y, ofGetHeight() * 0.5, ofGetHeight() * -0.5, 0, 240);

color_0.setHsb(255, 0, 255);

color_1.setHsb(hue, 255, 128);

color_2.setHsb(hue, 255, 230);

this->mesh.clearColors();

this->mesh.addColor(color_1);

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

this->mesh.addColor(color_2);

}

this->mesh.addColor(color_1);

ofPushMatrix();

ofTranslate(x, y);

ofRotateY(ofMap(ofNoise(ofRandom(1000), ofGetFrameNum() * 0.005), 0, 1, 0, 360));

ofRotateX(ofMap(ofNoise(ofRandom(1000), ofGetFrameNum() * 0.005), 0, 1, 0, 360));

this->mesh.drawFaces();

this->mesh.clearColors();

for (int i = 0; i < 6; i++) {

this->mesh.addColor(color_0);

}

this->mesh.drawWireframe();

ofPopMatrix();

}

this->cam.end();

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20191028

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