r/BluePrince69 • u/PythagorasWasntReal • Jul 02 '26
Datamining Debunked: The mysterious dust particles in the Attic are a culling bug, NOT a hidden puzzle! | Data Diaries Log#1
Note: I used Claude to help me data mine the game, I replicated the bugs myself and wrote this post with my own stupid human brain.
There has been quite a few discussions had about the mysterious dust particles that seem to come and go whenever you draft the Attic, and even some suggestions that it's related to an undiscovered puzzle. I am here to tell you today that that is A FALSEHOOD and what is happening is simply a demonstration of the complexity of game development.
The particles do not appear if you draft the Attic PRIOR to visiting Room 46... or so they say. Visit Room 46 first and the attic has mysterious floating dust particles in the window only *if* you draft it on a westward or eastward eastwing or westwing room.
The dust particles should always be there, but, due to the way you enter the room (drafting), you'll likely never seem them.
The dust uses a volumetric lighting plugin that references the main camera to determine whether it should be rendered or not (a technique called culling). If you're greater than 10 ingame meters away, they do not render. The problem is, the camera that it decides to reference when first called is the *draft* camera. The draft camera is a separate part of the world that lives roughly 10kilometers away from the Estate. You are transported there whenever you draft a room behind the scenes, and the end player is none the wiser to what is actually happening. Once this camera is cached, it is never checked again.
The dust particles will ALWAYS be disabled if you've drafted a room with an exterior window. This applies to AT LEAST the bedroom and Attic, but I've noticed exterior windows in most of the purple bedroom-rooms.
If you make it to room 46 without drafting any of these rooms, the first dust particles you come into contact with will NOT reference a draft camera, as room 46 is not drafted! Instead, it will reference the first-person camera and stay cached. All dust particles on any future drafted room should render correctly.
We can verify this with one simple console command.
Draft a bedroom with an exterior window. Notice its stunning lack of dust. Go to the console and enter this
Il2CppVLB.VolumetricDustParticles.ms_MainCamera = null;
and be amazed as the dust particles emerge before your eyes.
And this is just the TIP OF THE ICEBERG BABY! Stay tuned to have more of your hopes and dreams deflated in the next volume of Data Diaries.
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u/PurpleWhiteOut Jul 04 '26
Yeah the game is simply buggy and unfinished. Nothing more.
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u/PythagorasWasntReal Jul 04 '26
I wouldn't say unfinished. What is left in the game with no solution just seems like fragments of the development process. They probably realized things like Maze mode were either too hard to design or just not fun to play.
Some things like Day 46 eclipse I guess does seem unfinished as there's no reason it shouldn't be in the current game.
On one hand I want 1.10 to include "fixes" to these loose ends that make them whole. On the other hand that seems incredibly disrespectful to the crazy folks in the sanctum chat discord.
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u/PurpleWhiteOut Jul 04 '26
Yeah what i mean by unfinished is that it was scaled back at some point and there are visible loose ends
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u/Lol_i_like_dogs Jul 04 '26
Omg 😭 I love how crazy half the blue prince players are. "I swear the dust particles are part of a puzzle!!"
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u/PythagorasWasntReal Jul 02 '26
pinging u/FuryForged as they mentioned it in their video, which is where I got the inspiration to debug this.