Digital Sculpting

The first posts out my new series of Notes, to help you understand computer graphics better.

Digital Sculpting is one of the most artist ways of mesh manipulation and most preferred way of creating organic forms example character, environment props, rocks, stones, trees to name a few. It has given artists the freedom to interact with the mesh like traditional clay.

In programs like ZBrush, you get brushes which are similar to traditional tools like clay, rake, and move.

Before the advancement of dynamic mesh generation and equalizing mesh based on active form.

I don’t think anyone who has done digital sculpting would want to go back. Back then you had to draw a cage with NURBS (Non-uniform rational basis spline) curves which are filled with loft or birail functions, this process was known as patch modeling, which would take hours, not getting the desired shape meant redoing it. I have never done it, knowing it was earlier ways of the creative process, make me think the development of the new age tools and advancement in computer graphics.

Today software like Blender come with Sculpt mode, Modo and Maya come with sculpting tool set.

Like such content, I try publishing every Sunday.

RuTorrent on Raspberry Pi

After publishing RTorrent on Raspberry Pi, I did not have enough time to try anything new with the Raspberry Pi, I got requests later to get RuTorrent working with RTorrent on Raspberry Pi.

I decided to use a bash script based setup instead of step by step because it will end up having the same result but with better security measures as the script is written by a much-experienced person and maintained actively.

I would recommended doing this on a clean install for best result.

This setup will contain

  1. libtorrent/rtorrent (Latest/Compiled)
  2. SSH port reassigned
  3. VSFTPD (FTP client) random port assigned
  4. Webmin (Optional) (Admin interface)
  5. autodl-irssi
  6. rutorrent (Web UI)

Download the script

sudo bash -c "$(wget --no-check-certificate -qO -"

Run the script

sudo bash

The script would respond shown below

Raspbian GNU/Linux 8.0 (jessie)

Your Server IP/Name is

Is this correct y/n? 

Choose y

The next response would be to add a password to secure the web interface to the user pi

Set Password for RuTorrent web client
 Enter a password (6+ chars)
 or leave blank to generate a random one
 Please enter the new password:

The next response can take some time depending on the SD card speed and active tasks running in the background

No more user input required, you can complete unattended
 It will take approx 10 minutes for the script to complete

Updating package lists

The final response after the process

crontab entries made. rtorrent and irssi will start on boot for pi

ftp client should be set to explicit ftp over tls using port 48915

If enabled, access https downloads at

rutorrent can be accessed at
rutorrent password as set by user
to change rutorrent password enter: rtpass

IMPORTANT: SSH Port set to 26828 - Ensure you can login before closing this session

The above information is stored in in your home directory.
To see contents enter: cat /home/pi/

To install webmin enter: sudo rtwebmin


Note down the changed SSH and FTP port before exiting the SSH session, the script adds these information to a file named for later access.

ftp client should be set to explicit ftp over tls using port 43915
 If enabled, access https downloads at
 rutorrent can be accessed at
 rutorrent password as set by user
 to change rutorrent password enter: rtpass
 ssh port changed to 21828

The script does even more, it adds various options and update functionality with the help of rtadmin

sudo rtadmin

It would respond with these options

Select from the following options:
 1.) rtgetscripts - update the rtinst scripts
 2.) rtadduser - add new user
 3.) rtremove - delete a user
 4.) rtdload enable - enable http downloads
 5.) rtupdate - up/down-grade rtorent/libtorrent
 6.) rutupgrade - upgrade to latest version of RuTorrent
 7.) rtwebmin - install webmin
 Enter option or q to quit

Doing this whole process manually would take a lot of steps and longer time, this script does more and simplifies, things like update, upgrade plugin management, thanks to arakasi72, the repository of the script is on GitHub

If you have more requests for such posts let me know in a comment or contact directly for feedback.