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Ming-Lun "Allen" Chou @theallenchou.bsky.social · 24/09/2026

Filling the gaps among splats with meshes or ray-marched surfaces. The data & acceleration structures are already there. Doing both splats & fill in one single pipeline is cheaper than doing them in two separate pipelines. #MudBun #GameDev #MadeWIthUnity #VFX

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Ming-Lun "Allen" Chou @theallenchou.bsky.social · 23/09/2026

Right now it’s building brush masks from AABB trees per pixel. I’m going to experiment with lowering the number of such threads to per tile, and only run the expensive material resolution on pixels/quads/tiles where materials are blended.

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Ming-Lun "Allen" Chou @theallenchou.bsky.social · 23/09/2026

I haven’t profiled it yet but it’s not brute force. There are acceleration structures in place.

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Reposted by Ming-Lun "Allen" Chou

DK Liao @chosenconcept.dev · 16/09/2026

PSA: my vector graphics library for Godot and Unity is currently free on itch. I’m in desperate need of feedbacks please do try it out! #gamedev #indiedev #godot #unity3D

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Ming-Lun "Allen" Chou @theallenchou.bsky.social · 23/09/2026

I kept trying to geometrically solve blurry materials due to vertex interpolation at zero-blend brush boundaries, but to no avail. Here's a simple but effective alternative: resolving materials in the fragment shader. #MudBun #GameDev #MadeWithUnity #VFX

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Ming-Lun "Allen" Chou @theallenchou.bsky.social · 13/09/2026

Destructive field stamping. There's only one active constructive brush, destructively stamping into a sparse signed distance field. Good for sculpting complex SDFs without blowing up constructive brush budgets. #MudBun #MadeWithUnity #GameDev #VFX

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Ming-Lun "Allen" Chou @theallenchou.bsky.social · 10/09/2026

MudBun 2.0 in the works (still in early stages). Rect tool. Multi-renderer. #MudBun #GameDev #MadeWithUnity #VFX

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Ming-Lun "Allen" Chou @theallenchou.bsky.social · 02/07/2026

PlayStation dragon paper puppet, complete with a headset 😍

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Ming-Lun "Allen" Chou @theallenchou.bsky.social · 15/05/2026

Long over-due full documentation for Boing Kit, my bouncy VFX tool for Unity. No longer just a short quick guide & a few disjointed readme text files. Docs: longbunnylabs.github.io/boing-kit/ Store page: assetstore.unity.com/packages/too... #BoingKit #GameDev #VFX #MadeWithUnity

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Ming-Lun "Allen" Chou @theallenchou.bsky.social · 11/04/2026

lsp-mcp: A simple VS Code extension that exposes language server features as MCP tools. It hooks into whatever language servers VS Code already has running. github.com/TheAllenChou...

github.com

GitHub - TheAllenChou/lsp-mcp

Contribute to TheAllenChou/lsp-mcp development by creating an account on GitHub.

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Ming-Lun "Allen" Chou @theallenchou.bsky.social · 11/01/2026

When your kid goes to bed next to you with a Bulborb/Chappy and you wake up the next morning. #Pikmin

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Ming-Lun "Allen" Chou @theallenchou.bsky.social · 14/07/2025

If this is done using SIMD instructions then there isn’t an extra cost for the fourth component divided by 2 (if that’s what you were referring to by optimizing out).

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Ming-Lun "Allen" Chou @theallenchou.bsky.social · 13/07/2025

And IMO angles in degrees and radians should technically be stored in different types because they are different units. But we didn't start out with such rigorous type structures so now we are left with people accidentally mixing degrees with radians.

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Ming-Lun "Allen" Chou @theallenchou.bsky.social · 13/07/2025

You mean packing Euler angles in Vector3? IMO people are only doing it because Vector3 happens to hold 3 floats, the same way people use Vector3 to represent 3D points. They are a parameterization of orientation and technically should be a different type.

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Ming-Lun "Allen" Chou @theallenchou.bsky.social · 13/07/2025

Right. This is indeed an annoyance. For my use cases at least (mid point, weighted average, lerp, etc.), I created helper functions that bypass usage of origin.

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Ming-Lun "Allen" Chou @theallenchou.bsky.social · 13/07/2025

Alright. In my next project I'm going to have separate point & vector types, as they should be. We have this at work in our C++ engine and I can't go back. This guards against things like accidentally adding together two Vector3's that represent points. #GameDev #MadeWithUnity

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Ming-Lun "Allen" Chou @theallenchou.bsky.social · 14/04/2025

They didn’t say adults couldn’t join a kids’ Easter bunny coloring activity at the park 🐰

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Ming-Lun "Allen" Chou @theallenchou.bsky.social · 15/03/2025

Just a few sphere brushes oscillating in sine waves.

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Ming-Lun "Allen" Chou @theallenchou.bsky.social · 10/03/2025

TIL the acronym FUI. Thanks and this is beautiful.

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Ming-Lun "Allen" Chou @theallenchou.bsky.social · 04/03/2025

Inverting normals can come in handy for shaping interior spaces more intuitively. #MudBun #GameDev #MadeWithUnity #VFX

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Ming-Lun "Allen" Chou @theallenchou.bsky.social · 04/03/2025

GPU-based auto-smoothing was fun to implement. Adjacency is constructed by spatially hashing & adding coinciding verts to a shared list. Then each vert's normal is updated to be a weighted avg. of similar normals of verts in the same list. #MudBun #GameDev #MadeWithUnity #VFX

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Reposted by Ming-Lun "Allen" Chou

Ming-Lun "Allen" Chou @theallenchou.bsky.social · 22/02/2025

Ray-marched surface, take 2. Not sure why it's so much brighter than regular meshing. Even dual contouring can't beat this because it's the ground truth. Voxel density affects the proxy mesh complexity but doesn't change the visuals. #MudBun #MadeWithUnity #GameDev #VFX

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Ming-Lun "Allen" Chou @theallenchou.bsky.social · 22/02/2025

Take 1 was in 2021, and this time I have some ideas to make it more performant.

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Ming-Lun "Allen" Chou @theallenchou.bsky.social · 22/02/2025

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Ming-Lun "Allen" Chou @theallenchou.bsky.social · 19/02/2025

Another one. Blending between surface nets or dual contouring and intermediate dual quads never gets old. The mesh is constructed & animated by sampling triangle noise with scrolling spherical coordinates. #MudBun #GameDev #MadeWithUnity #VFX

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Ming-Lun "Allen" Chou @theallenchou.bsky.social · 19/02/2025

Another demo of blending between surface nets and intermediate dual quads. #MudBun #GameDev #MadeWithUnity #VFX

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Ming-Lun "Allen" Chou @theallenchou.bsky.social · 19/02/2025

Quick & easy way to get dithered transparency to look more convincing on overlapping transparent objects: throw unique object hash/ID into the mix for noise seed. #GameDev #MadeWithUnity

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Ming-Lun "Allen" Chou @theallenchou.bsky.social · 18/02/2025

I mean if you squint you can kind of see the axes pointing away from you…making this right-handed.

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Ming-Lun "Allen" Chou @theallenchou.bsky.social · 18/02/2025

Sometimes it's desired to jitter splat orientation. With high-frequency noise though, the normals might appear to be too noisy. A blend back to the original normals can help, in the same vein as normal transfer techniques for foliage in games. #MudBun #GameDev #MadeWithUnity #VFX

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Ming-Lun "Allen" Chou @theallenchou.bsky.social · 17/02/2025

More documentary of the shelved experimental ray-traced voxel render mode. Splat size was used as a proxy for rendered voxel size. Had to speed up the video to fit within bsky's limit. #MudBun #GameDev #MadeWithUnity #VFX

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Ming-Lun "Allen" Chou @theallenchou.bsky.social · 17/02/2025

I tried other branching factors, but somehow (8, 8, 4) is the most performant, by a >20% margin compared to the runner-up IIRC, on my RTX 2080.

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Ming-Lun "Allen" Chou @theallenchou.bsky.social · 17/02/2025

Absolutely. bsky.app/profile/thea...

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Ming-Lun "Allen" Chou @theallenchou.bsky.social · 17/02/2025

Sparse hierarchical voxel nodes are used to narrow down which voxels to generate triangles for. I use branching factors (8, 8, 4), so one highest-level node, or "chunk", contains to 256 voxels. Only a node that intersects the SDF zero surface is further branched. #MudBun #GameDev #MadeWithUnity #VFX

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Ming-Lun "Allen" Chou @theallenchou.bsky.social · 17/02/2025

The surface nets & dual contouring algorithms both involve an intermediate step that produces voxel quads and a final step that offsets vertices towards the SDF zero isosurface. Naturally...I'd want to try blending between the two steps. #MudBun #GameDev #MadwWithUnity #VFX

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Ming-Lun "Allen" Chou @theallenchou.bsky.social · 17/02/2025

Demonstrating varying voxel density, render modes, and splat options. #MudBun #GameDev #MadeWithUnity #VFX

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Ming-Lun "Allen" Chou @theallenchou.bsky.social · 17/02/2025

Using each splat's center to sample a 3D Perlin noise gradient for offset creates this interesting effects as the sphere brush is moved around. #MudBun #GameDev #MadeWithUnity #VFX

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Ming-Lun "Allen" Chou @theallenchou.bsky.social · 17/02/2025

SDF modeling is cool because you can just move the mouth around like this. #MudBun #BoingKit #GameDev #MadeWithUnity #VFX

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Ming-Lun "Allen" Chou @theallenchou.bsky.social · 17/02/2025

Seriously. It’s sooooo good. I ADORE movies with no dialogs. The first 20 minutes of Wall-E is the best part IMO (although the rest of the movie is great too).

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