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Knoblauch's picture

Tetrahedron

Submitted by Knoblauch on Fri, 02/08/2013 - 15:56
Tetrahedron

The tetrahedron has the smallest number of faces in the five Platonic Solids, having only 4 faces. And in fact, four faces are the minimium requirement for a polyhedron. Other features of tetrahedron includes:

  • Each face is an equilaterial triangle
  • Each vertex is the meeting of 3 faces

Andy's picture

Basic animation in VRMath2

Submitted by Andy on Tue, 30/07/2013 - 23:55
Animating cube

Animation in VRMath2 is still in the development stage. I have created some Logo commands to achieve some basic animation. Animation in Logo can be very powerful because it is very easy to move the turtle around in 3D space and collect its position and orientation for animation.

Here is a basic introduction of animation in VRMath2. The whole animation framework will be revised and more GUI will be developed to enable easy creation of animations.

Andy's picture

The infinite mobius space

Submitted by Andy on Tue, 30/07/2013 - 21:33
Man walking in Mobius space

What if the world is a Mobius ring? Then would this man even walk to the end of the world?

A normal wrist band has inside and outside faces. If we cut the band, twist it 180 degrees then reconnect the band, then we have created a Mobius ring (or Mobius strip). A Mobius ring has only 1 face. You can observe the man walking continuously on the inside to outside, then inside, and outside again and again.....   

Knoblauch's picture

Hexahedron

Submitted by Knoblauch on Mon, 29/07/2013 - 13:57
Hexahedron

Introduction

Platonic solids are polyhedron which satisfy 3 conditions

  1. all its faces are congruent convex regular polygons,
  2. none of its faces intersect except at their edges, and
  3. the same number of faces meet at each of its vertices

Hexahedron

The most commonly recognised platonic solid, also known as a cube. 

Andy's picture

Walking man pacing a sqaure

Submitted by Andy on Mon, 29/07/2013 - 10:45
Walking man

This is a test of animating an inline animation. In my previous walking man blog, I published an x3d file named walkman.x3d. In this blog, I tried to use the inline command to firstly insert the walkman.x3d as a single object (obj_0), then applied animation again onto this object.

The result is very succeesful. cool