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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

Andy's picture

Walking man

Submitted by Andy on Sun, 28/07/2013 - 21:35
Walking man

This is another test of animation in VRMath2. The construction of the man utilises basic 3D primitives including sphere, cone, sylinder, and cube. It is basically a trial and error approach to scale and apply material settings onto those 3D primitive objects. 

Animation is then applied to the arms and legs by careful considerations about their positions and orientations of movements.

Andy's picture

Rotating Earth orbiting the Sun

Submitted by Andy on Sat, 27/07/2013 - 22:52
Rotating Earth

This is a simple Earth and Sun model. This model is not to scale in terms of size and distance.

The rotation and revolution speeds are roughly to scale. The Earth in this model is rotating at 1 second per rotation. It is also revolving at 365 seconds per revolution.

The Earth has a tile of 23.5 degrees on its rotation axis to the orbiting plane. There are also some background stars (points). This model can be easily created using VRMath2 Editor. smiley

xiezuoru's picture

魔比斯环

Submitted by xiezuoru on Fri, 26/07/2013 - 23:45
Mobius ring

魔比斯环也称麦比乌斯圈。麦比乌斯圈(Möbius strip, Möbius band)是一种单侧、不可定向的曲面。因A.F.麦比乌斯(August Ferdinand Möbius, 1790-1868)发现而得名。将一个长方形纸条ABCD的一端AB固定，另一端DC扭转半周后，把AB和CD粘合在一起 ，得到的曲面就是麦比乌斯圈，也称麦比乌斯带。