Ultra Large Scale Structure

Note about hardware support: Due to how Panda3D/NVIDIA handles multiple samplers, this application only supports AMD graphics cards currently. See issue 1538 on the panda3d repo for more details.

I will be attempting to produce a "minimum viable galaxy product" which demonstrates the importance of Dark Matter in galaxy formation and/or large-scale structure formation using Panda3D and Python.

Source: Ultra Large Scale Structure on Git

Project Description

A game engine implementation of physical cosmology structure formation with a compute shader.

The current research focus of this simulation is how dark matter, namely, the absence of dark matter would affect the formation of the Milky Way Galaxy, with a very specific focus. The simulation aims to provide a dial to turn the dark matter up or down, and watch the effect on the formation of the galaxy. The simulation makes the implicit assumption that a standard dark matter universe has persisted conveniently up until our simulation begins.

Initial near-singularity orbital emergence:
Spiral Galaxy Structure Formation on Private Supercomputer 1

Detailed Structure Formation

Initial UI

Preliminary physics output data plot (not representative of the game):
Initial math, not representative of the game.


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Ratings (show detail)

Overall: 4.3
Fun: 3
Production: 5
Innovation: 5

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Respondents: 1


File Uploader Date
Simulan 2023/09/24 19:11
ULSS 1.0.0 binary for Linux (manylinux2014_x86_64)
Simulan 2023/09/23 01:20
ULSS 1.0.0 binary for Windows
Simulan 2023/09/23 01:19

Diary Entries

9/19/23 ULSS Update

Amazingly, within the first 24 hours I was able to produce an arbitrary number of emergent rotational dynamics which are modeled via a simplified dark matter-mass-velocity model. These galaxies show both clockwise and counterclockwise rotations. This was achieved via first producing a nondeterministic sparsely represented initial state, along with a fine-tuned near-singularity mass condition optimal for studying multi-hour galaxy dynamics. The potential for further study here is immense.

To see the initial simulation video, go here: Spiral Galaxy Structure Formation on Private Supercomputer 1

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9/21/23 ULSS Update

Detailed galaxy structure formation using multiple 3D textures with a compute shader to produce a real-time visualization:

Currently due to the specific data requirements exceeding a single F_rgba32 (GLSL image3D's) maximum size, and some really specific low-level implementation details of cross-vendor drivers, this simulation repo may receive a "special" version for platforms which do not meet these lofty compute shader requirements.

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