triangle – ページ 2 – プログラミング de 落描き

2020年12月4日2020年12月4日

Triangles. Draw by openFrameworks

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[ About ]
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) {};

	void setTriangleToMesh(ofMesh& face_target, ofMesh& frame_target, glm::vec3 location, float radius, float start_deg, float height);

	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 setTriangleToMesh(ofMesh& face_target, ofMesh& frame_target, glm::vec3 location, float radius, float start_deg, float height);

ofEasyCam cam;

ofMesh face, frame;

};

#include "ofApp.h"

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

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

	ofBackground(239);
	ofNoFill();
	ofEnableDepthTest();

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

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

	ofSeedRandom(39);

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

	for (int x = -300; x <= 300; x += 150) {

		for (int y = -300; y <= 300; y += 150) {

			for (int z = -300; z <= 300; z += 150) {

				this->setTriangleToMesh(this->face, this->frame, glm::vec3(x, y, z), ofRandom(30, 50), 0, ofRandom(10, 25));
			}
		}
	}
}

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

	this->cam.begin();
	ofRotateX(ofGetFrameNum() * 0.37);
	ofRotateY(ofGetFrameNum() * 0.72);

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

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

	ofSetColor(39);
	ofDrawBox(glm::vec3(), 750);

	this->cam.end();
}

//--------------------------------------------------------------
void ofApp::setTriangleToMesh(ofMesh& face_target, ofMesh& frame_target, glm::vec3 location, float radius, float start_deg, float height){

	int index = face_target.getNumVertices();

	vector<glm::vec3> vertices;
	for (float deg = start_deg; deg < start_deg + 360; deg += 120) {

		vertices.push_back(glm::vec3(radius * cos(deg * DEG_TO_RAD), radius * sin(deg * DEG_TO_RAD), height * -0.5));
		vertices.push_back(glm::vec3(radius * cos(deg * DEG_TO_RAD), radius * sin(deg * DEG_TO_RAD), height * 0.5));
	}

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

	for (auto& vertex : vertices) {

		auto rotation_z = glm::rotate(glm::mat4(), ofMap(ofNoise(noise_seed.z + ofGetFrameNum() * 0.008), 0, 1, PI * -2.5, PI * 2.5), glm::vec3(0, 0, 1));
		auto rotation_y = glm::rotate(glm::mat4(), ofMap(ofNoise(noise_seed.y + ofGetFrameNum() * 0.008), 0, 1, PI * -2.5, PI * 2.5), glm::vec3(0, 1, 0));
		auto rotation_x = glm::rotate(glm::mat4(), ofMap(ofNoise(noise_seed.x + ofGetFrameNum() * 0.008), 0, 1, PI * -2.5, PI * 2.5), glm::vec3(1, 0, 0));

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

	face_target.addVertices(vertices);
	frame_target.addVertices(vertices);

	face_target.addIndex(index + 0); face_target.addIndex(index + 2); face_target.addIndex(index + 4);
	face_target.addIndex(index + 1); face_target.addIndex(index + 3); face_target.addIndex(index + 5);

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

	face_target.addIndex(index + 2); face_target.addIndex(index + 3); face_target.addIndex(index + 5);
	face_target.addIndex(index + 2); face_target.addIndex(index + 5); face_target.addIndex(index + 4);

	face_target.addIndex(index + 4); face_target.addIndex(index + 5); face_target.addIndex(index + 1);
	face_target.addIndex(index + 4); face_target.addIndex(index + 1); face_target.addIndex(index + 2);


	frame_target.addIndex(index + 0); frame_target.addIndex(index + 2);
	frame_target.addIndex(index + 2); frame_target.addIndex(index + 4);
	frame_target.addIndex(index + 4); frame_target.addIndex(index + 0);

	frame_target.addIndex(index + 1); frame_target.addIndex(index + 3);
	frame_target.addIndex(index + 3); frame_target.addIndex(index + 5);
	frame_target.addIndex(index + 5); frame_target.addIndex(index + 1);

	frame_target.addIndex(index + 0); frame_target.addIndex(index + 1);
	frame_target.addIndex(index + 2); frame_target.addIndex(index + 3);
	frame_target.addIndex(index + 4); frame_target.addIndex(index + 5);
	
}

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

ofNoFill();

ofEnableDepthTest();

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

}

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

void ofApp::update() {

ofSeedRandom(39);

this->face.clear();

this->frame.clear();

for (int x = -300; x <= 300; x += 150) {

for (int y = -300; y <= 300; y += 150) {

for (int z = -300; z <= 300; z += 150) {

this->setTriangleToMesh(this->face, this->frame, glm::vec3(x, y, z), ofRandom(30, 50), 0, ofRandom(10, 25));

}

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

void ofApp::draw() {

this->cam.begin();

ofRotateX(ofGetFrameNum() * 0.37);

ofRotateY(ofGetFrameNum() * 0.72);

ofSetColor(39);

this->face.drawFaces();

ofSetColor(239);

this->frame.drawWireframe();

ofSetColor(39);

ofDrawBox(glm::vec3(), 750);

this->cam.end();

}

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

void ofApp::setTriangleToMesh(ofMesh& face_target, ofMesh& frame_target, glm::vec3 location, float radius, float start_deg, float height){

int index = face_target.getNumVertices();

vector<glm::vec3> vertices;

for (float deg = start_deg; deg < start_deg + 360; deg += 120) {

vertices.push_back(glm::vec3(radius * cos(deg * DEG_TO_RAD), radius * sin(deg * DEG_TO_RAD), height * -0.5));

vertices.push_back(glm::vec3(radius * cos(deg * DEG_TO_RAD), radius * sin(deg * DEG_TO_RAD), height * 0.5));

}

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

for (auto& vertex : vertices) {

auto rotation_z = glm::rotate(glm::mat4(), ofMap(ofNoise(noise_seed.z + ofGetFrameNum() * 0.008), 0, 1, PI * -2.5, PI * 2.5), glm::vec3(0, 0, 1));

auto rotation_y = glm::rotate(glm::mat4(), ofMap(ofNoise(noise_seed.y + ofGetFrameNum() * 0.008), 0, 1, PI * -2.5, PI * 2.5), glm::vec3(0, 1, 0));

auto rotation_x = glm::rotate(glm::mat4(), ofMap(ofNoise(noise_seed.x + ofGetFrameNum() * 0.008), 0, 1, PI * -2.5, PI * 2.5), glm::vec3(1, 0, 0));

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

}

face_target.addVertices(vertices);

frame_target.addVertices(vertices);

face_target.addIndex(index + 0); face_target.addIndex(index + 2); face_target.addIndex(index + 4);

face_target.addIndex(index + 1); face_target.addIndex(index + 3); face_target.addIndex(index + 5);

face_target.addIndex(index + 0); face_target.addIndex(index + 1); face_target.addIndex(index + 3);

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

face_target.addIndex(index + 2); face_target.addIndex(index + 3); face_target.addIndex(index + 5);

face_target.addIndex(index + 2); face_target.addIndex(index + 5); face_target.addIndex(index + 4);

face_target.addIndex(index + 4); face_target.addIndex(index + 5); face_target.addIndex(index + 1);

face_target.addIndex(index + 4); face_target.addIndex(index + 1); face_target.addIndex(index + 2);

frame_target.addIndex(index + 0); frame_target.addIndex(index + 2);

frame_target.addIndex(index + 2); frame_target.addIndex(index + 4);

frame_target.addIndex(index + 4); frame_target.addIndex(index + 0);

frame_target.addIndex(index + 1); frame_target.addIndex(index + 3);

frame_target.addIndex(index + 3); frame_target.addIndex(index + 5);

frame_target.addIndex(index + 5); frame_target.addIndex(index + 1);

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

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

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

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20201204

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2020年11月23日2020年11月23日

The Sphere of Spines. Draw by openFrameworks

[ Video ]

[ About ]
棘の球体。

The Sphere of Spines.

[ 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;
	ofIcoSpherePrimitive ico_sphere;
	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;

ofIcoSpherePrimitive ico_sphere;

ofMesh mesh;

};

#include "ofApp.h"

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

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

	ofBackground(239);
	ofSetLineWidth(1);
	ofEnableDepthTest();

	this->ico_sphere = ofIcoSpherePrimitive(150, 3);
}

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

	this->mesh.clear();
	auto triangle_list = this->ico_sphere.getMesh().getUniqueFaces();

	for (auto& triangle : triangle_list) {

		glm::vec3 avg = (triangle.getVertex(0) + triangle.getVertex(1) + triangle.getVertex(2)) / 3;
		auto noise_value = ofNoise(avg.x * 0.008, avg.y * 0.008, avg.z * 0.008, ofGetFrameNum() * 0.003);

		float noise_radius = 150;
		if (noise_value > 0.48 && noise_value < 0.52) {

			noise_radius = ofMap(noise_value, 0.48, 0.52, 150, 250);
		}
		else if(noise_value >= 0.52) {

			noise_radius = 250;
		}

		int index = this->mesh.getNumVertices();

		this->mesh.addVertex(glm::normalize(avg) * (noise_radius + 25));
		this->mesh.addVertex(glm::normalize(triangle.getVertex(0)) * noise_radius);
		this->mesh.addVertex(glm::normalize(triangle.getVertex(1)) * noise_radius);
		this->mesh.addVertex(glm::normalize(triangle.getVertex(2)) * noise_radius);

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

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

		this->mesh.addIndex(index + 0);
		this->mesh.addIndex(index + 1);
		this->mesh.addIndex(index + 3);

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

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

	this->cam.begin();
	ofRotateX(ofGetFrameNum() * 0.43);
	ofRotateY(ofGetFrameNum() * 0.65);

	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);

ofSetLineWidth(1);

ofEnableDepthTest();

this->ico_sphere = ofIcoSpherePrimitive(150, 3);

}

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

void ofApp::update() {

this->mesh.clear();

auto triangle_list = this->ico_sphere.getMesh().getUniqueFaces();

for (auto& triangle : triangle_list) {

glm::vec3 avg = (triangle.getVertex(0) + triangle.getVertex(1) + triangle.getVertex(2)) / 3;

auto noise_value = ofNoise(avg.x * 0.008, avg.y * 0.008, avg.z * 0.008, ofGetFrameNum() * 0.003);

float noise_radius = 150;

if (noise_value > 0.48 && noise_value < 0.52) {

noise_radius = ofMap(noise_value, 0.48, 0.52, 150, 250);

}

else if(noise_value >= 0.52) {

noise_radius = 250;

}

int index = this->mesh.getNumVertices();

this->mesh.addVertex(glm::normalize(avg) * (noise_radius + 25));

this->mesh.addVertex(glm::normalize(triangle.getVertex(0)) * noise_radius);

this->mesh.addVertex(glm::normalize(triangle.getVertex(1)) * noise_radius);

this->mesh.addVertex(glm::normalize(triangle.getVertex(2)) * noise_radius);

this->mesh.addIndex(index + 0);

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

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

this->mesh.addIndex(index + 0);

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

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

this->mesh.addIndex(index + 0);

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

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

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

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

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

}

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

void ofApp::draw() {

this->cam.begin();

ofRotateX(ofGetFrameNum() * 0.43);

ofRotateY(ofGetFrameNum() * 0.65);

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/Insta20201123

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2020年4月28日

Stacking triangles. openFrameworks

[ Video ]

[ About ]
Stacking 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) {};

	glm::vec2 make_point(int radius, int deg);

	ofEasyCam cam;
	ofMesh face;
};

#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 radius, int deg);

ofEasyCam cam;

ofMesh face;

};

#include "ofApp.h"

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

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

	ofBackground(239);
	ofEnableDepthTest();
}

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

	this->face.clear();

	int radius = 150;
	int deg_span = 1;
	for (int z = -150; z <= 150; z += 1) {

		int deg_start_ini = ofMap(ofNoise(z * 0.005 + ofGetFrameNum() * 0.035), 0, 1, 0, 720);
		for (int deg_start = deg_start_ini; deg_start < deg_start_ini + 360; deg_start += 120) {

			for (int deg = deg_start; deg < deg_start + 75; deg += deg_span) {

				vector<glm::vec3> vertices;
				vertices.push_back(glm::vec3(this->make_point(radius, deg), z + 0.5));
				vertices.push_back(glm::vec3(this->make_point(radius, deg), z - 0.5));
				vertices.push_back(glm::vec3(this->make_point(radius, deg + deg_span), z - 0.5));
				vertices.push_back(glm::vec3(this->make_point(radius, deg + deg_span), z + 0.5));

				int face_index = this->face.getNumVertices();
				this->face.addVertices(vertices);

				this->face.addIndex(face_index + 0); this->face.addIndex(face_index + 1); this->face.addIndex(face_index + 2);
				this->face.addIndex(face_index + 0); this->face.addIndex(face_index + 2); this->face.addIndex(face_index + 3);
			}
		}
	}
}

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

	this->cam.begin();

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

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

	this->cam.end();
}

//--------------------------------------------------------------
glm::vec2 ofApp::make_point(int radius, int deg) {

	deg = deg % 360;

	int deg_a = (deg / 120) * 120;
	int deg_b = deg_a + 120;

	int remainder = deg % 120;
	int diff = deg - deg_a;

	auto point_a = glm::vec2(radius * cos(deg_a * DEG_TO_RAD), radius * sin(deg_a * DEG_TO_RAD));
	auto point_b = glm::vec2(radius * cos(deg_b * DEG_TO_RAD), radius * sin(deg_b * DEG_TO_RAD));
	auto distance = point_b - point_a;

	return point_a + (distance / 120) * diff;
}

//--------------------------------------------------------------
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() {

this->face.clear();

int radius = 150;

int deg_span = 1;

for (int z = -150; z <= 150; z += 1) {

int deg_start_ini = ofMap(ofNoise(z * 0.005 + ofGetFrameNum() * 0.035), 0, 1, 0, 720);

for (int deg_start = deg_start_ini; deg_start < deg_start_ini + 360; deg_start += 120) {

for (int deg = deg_start; deg < deg_start + 75; deg += deg_span) {

vector<glm::vec3> vertices;

vertices.push_back(glm::vec3(this->make_point(radius, deg), z + 0.5));

vertices.push_back(glm::vec3(this->make_point(radius, deg), z - 0.5));

vertices.push_back(glm::vec3(this->make_point(radius, deg + deg_span), z - 0.5));

vertices.push_back(glm::vec3(this->make_point(radius, deg + deg_span), z + 0.5));

int face_index = this->face.getNumVertices();

this->face.addVertices(vertices);

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

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

}

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

void ofApp::draw() {

this->cam.begin();

ofSetColor(39);

this->face.draw();

//ofSetColor(239);

//this->frame.drawWireframe();

this->cam.end();

}

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

glm::vec2 ofApp::make_point(int radius, int deg) {

deg = deg % 360;

int deg_a = (deg / 120) * 120;

int deg_b = deg_a + 120;

int remainder = deg % 120;

int diff = deg - deg_a;

auto point_a = glm::vec2(radius * cos(deg_a * DEG_TO_RAD), radius * sin(deg_a * DEG_TO_RAD));

auto point_b = glm::vec2(radius * cos(deg_b * DEG_TO_RAD), radius * sin(deg_b * DEG_TO_RAD));

auto distance = point_b - point_a;

return point_a + (distance / 120) * diff;

}

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

int main() {

ofSetupOpenGL(720, 720, OF_WINDOW);

ofRunApp(new ofApp());

}

[ Link ]
https://github.com/junkiyoshi/Insta20200428

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