Real-Time 3D Space Flight experience with Planetarium Presentation


he published Shira Universe software is developed based on Japan National Observatory (NAOJ)  Four-Diamensional Digital (4D2U) Project ( of Mitaka software which has MIT license. 

The Shira Universe 1.0 includes all of 1.3.0 version of the Mitaka software features. For detailed information about Mitaka

The Shira Universe (SU, as shortly) is a specific version for planetarium use only. It is aimed to facilitate of presentation of planetarium.

Benefits of Shira Universe

* Useful Console Manager

The SU has splitted and advanced screen console to control projection screen. Nearly all visual controls have fade on/off effect.  Below screenshots are taken while Sky Manager Display Settings window is opened. There are enough controls in the "Sky Manager - Display settings" window.

Shira Universe Main Control Console with preivew screen

Fisheye Projection
Spherical Projection
Hakoniwa Calibration System single cove projector projection

The SciencePeople Company from South Korea installed four channel projection system for video play into JeongEup Weather Station.

The Shira Player software installed simulation server and display through display server.

Dome Size : 8 meter
4 Projector Count
New construction building.

JeongEup Weather Station old wiki page.


Video Pre-Frame Caching Architecture.



inally, first 64 bit development of Shira Player is completed. In this version video playing architecture was changed completely. Qt and FFMPEG library versions were upgraded to last ones.

Henceforth, it will be using "Frame Caching Architecture" for video playing. Now, up to 3K videos can be played without any drop frames.

What is the Pre-Frame Caching Arch.?

Old versions of the Shira Player were experiencing drop frame problems over 1K videos. To solve this, frames of the first second (it is usually 30 frames) buffered in the memory. As soon as first second of the video is prepared, it begins to play. Thus dropped frame problems will be eliminated. Of course this can be related with videos bitrate and resolution. In addition to save play as stable, Shira Movie Encoder software was developed by using power of FFMPEG. It encodes image sequence or transcodes different codec movies to stable bitrate and fps movies.

Image-1 : Frame Buffer Value Progress Bar

In this version and next, Shira requires splitted video and audio files. The Shira Movie Encoder also provides this operation.

 Image-2 : Shira Movie Encoder

You can download and test new version of ShiraPlayer from download area. Installer includes new "User Guide" and "Shira Movie Encoder" execute files. After install you can see short-cuts for Shira Movie Encoder and User Guide in the windows program list.

Image-3 : After install new package seen program list.


All development and fixes are listed below .

  • 64 bit compiled.
  • All video operations converted to caching system.
  • Developed Shira Movie Encoder
  • Prepared new User Guide
  • Added Video Caching progress bar to the Video Manager
  • Added Flat Media manager Mix with Sky feature.
  • Added Color, brightness and contrast change feature to the Video Manager
  • Added Fly-By manager Fully Illuminated feature to the planets.
  • Added warning while want to play video that has embedded audio.
  • Added Solar System Editor Plugin
  • Fixed star download feature.
  • Fixed Goto Object feature problems.
  • Fixed Star trail performance on multi-projector works.
  • Fixed Sky Writer feature item position problem on multi-projector works.

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Mrs.Karina Schifter-Holm from Viborg High School Denmark has chosen ShiraPlayer software for their educational presentation.

Dallas Independent School District  Science, Technology, Engineering, and Mathematics (STEM) department ought mobile planetarium system from "Fulldome Reality" Company with ShiraPlayer presentation software.