Mathematics

Andy's picture

Palm Tree Leaf

Submitted by Andy on Sun, 11/10/2015 - 12:51
Palm tree leaf

Outsite my office window, there are many palm trees. I thought about making one so it may be reused later to make a full tree.

aplesch's picture

circle involute

Submitted by aplesch on Fri, 09/10/2015 - 06:50

As part of a project to make a nice gear mesh with logo, I wondered how to generate the involute of a circle.

aplesch's picture

Flying Boxes

Submitted by aplesch on Wed, 07/10/2015 - 00:07

A surprise happened when I was trying to use nested transforms.

aplesch's picture

A paper dragon

Submitted by aplesch on Mon, 05/10/2015 - 15:41
a dragon

 

The dragon curve is a fractal which is defined by replacing a segment of the curve with a (smaller) version of itself.

Andy's picture

Another Tetrahedron

Submitted by Andy on Wed, 09/09/2015 - 23:35
Tetrahedron

Thanks to Knoblauch who created the Tetrahedron blog in VRMath2 Community. She demonstrated two methods to create a tetrahedron. Here I present another way to construct a tetrahedron using VRMath2 Editor. This is a generic way utilising the dihedral angles in 3D shapes. By this, many of the classical geometric solids such as those listed in this challenge can be easily created.

Andy's picture

Ripple wave

Submitted by Andy on Tue, 30/06/2015 - 23:43
Ripple test

This is my first water ripple experiment. I found a function on Youtube and had a quick experiment. The ripple effect is not perfect but could be a good start for whoever is interested to refine it.

Andy's picture

Mathematics, Programming and STEM

Submitted by Andy on Sun, 28/06/2015 - 23:25
MERGA38 Presentation

This is my first attemp to create a 3D virtual world for a conference presentation. This presentation is for my paper titled "Mathematics, Programming and STEM" published in MERGA 38 conference proceedings.

Andy's picture

Bouncing spring

Submitted by Andy on Tue, 16/06/2015 - 14:06
Bouncing Spring

Bouncing is fun. A spring has potential (elastic?) energy that has many uses in our life. Can you think of any uses? I just had a front suspesion replace in my old car. There are two big springs (or perhaps 4, I did not check back wheels) on top of the two front wheels. The two springs make sitting in the car comfortable by obsorbing forces and only bouncing slightly when driving (on rocky road).

Andy's picture

Interactive Earth Cross Section

Submitted by Andy on Sat, 09/05/2015 - 13:35
Earth Cross Section 2

This is a slightly improve Earth Cross Section model of the previous one, with added animation and some interaction. Previously, the focus was on using VRMath2 Editor to construct the model. This time, the focus is on the learning about the Earth's geo structure. This is one of the main purpose of VRMath2 as a learning community for all to create, share, discuss and learn.

Andy's picture

Earth Cross Section

Submitted by Andy on Sat, 09/05/2015 - 00:02
Earth Cross Section

In the X3DOM mailing list, there was a discussion about constructing solid geometry. One application of solid geometry is to model the cross section of Earth. Unfortunately, solid geometry is not supported in X3DOM. However, the cross section can be achieved by using other geometry available in X3DOM. Here is an example.