Character I prototyped last year. I had the idea for a small party game, but I could never quite find a healthy balance between personal and professional projects. My brain doesn’t let me do 50/50.

What's the official statement on using distance fields in shaders? Afaik, they've been somewhat broken since 5.0. Workaround is to use a CVar to only use one low resolution cascade, I think, but it's far from ideal. Am I wrong? Any clues? Ty

Decided to try Position-Based Fluids for a first go at realtime fluids. I think I got the algorithm wrong, I've got weird boundary behavior. Meh, I suck at maths, it's an infinite pain to go through academic papers :(

TIL that NDC has a new method for querying particle data in BP :) The basic callback interface was severely limited. This looks much more powerful. Neat!

Continuing with my Niagara/Grass experiments... Here, a regular grass clump mesh is instanced about 64 times and each card is injected into a buffer to be individually simulated. I still need to fix plenty of issues & write to velocity buffer to fix TAA artifacts but it's a start

Core C-Side is my last golden berry, I swear. Golden B Sides and Farewell are on a whole other level, I want to keep what's left of my sanity. Still, fairly happy with my progression :shrug:

🥳🎥 New YouTube video just dropped! A quick 20-min dive into the basics of Niagara’s Dynamic Mesh interface + a breakdown of a more advanced (but flawed/experimental) use case. Link ⬇️ #UnrealEngine #Niagara #VFX

Alright, I'm done with my deep dive into Niagara's Dynamic Mesh interface. LOTS can be done with it. Frustrum culling is aggressive here for demonstration purposes. Overhead seems to be high: 1.3ms for generating this :( I'm sure my code isn't as optimized as could be tho.

#UE5 #vfx #gamedev #indiedev🥳I just released a short video explaining how sphere tracing works and how to write a sphere tracing function in HLSL for collision detection in Niagara: www.youtube.com/watch?v=B4RR...

I was hoping to implement a lightweight version of Remedy’s — and more recently, Epic’s — GPU skeletal animated foliage using PCG and Niagara. vimeo.com/880842428?fl... But it turns out it’s not that straightforward, yet—unless I’m missing something. 🧵

Trying out Niagara's Dynamic Mesh interface to generate procedural grass on the GPU🧐 This is a single mesh with no vertex shader. Quadratic curves are animated and vertices are positioned along them to best face the camera, ribbon-style. Landscape is sampled for Z projection.

Visually debugging vectors and positions in Niagara is important, and it's easy to do using the built-in DrawDebug interface. You can also achieve this with sprite or mesh renderers, custom bindings, and a single custom module. 🧵

🥳New video just dropped on YouTube! 🎥 A 40-minute deep dive into building a Niagara-based swarm VFX — featuring particle-particle overlap solving, avoidance systems (particles, pawns, obstacles), surface projection, slope handling, GPU↔CPU↔GPU particle swapping, and more. 👇

🥳 New video is live! I walk through building a lightweight custom state machine in Niagara to drive Vertex Animation Textures in Unreal Engine. Part 1 of a short (probably 2-part) series on Niagara state machines. 🧵

⚡Sketch 004⚡ Post process practice. Mentor: @ghislaingir.bsky.social Class: www.youtube.com/playlist?lis... #gamedev #realtimevfx #rtvfx #techart #ue5

#UE5 #vfx Making use of my Bone Animation Textures baker :) GPU Niagara Swarm with custom AI + nearby obstacle/particle avoidance and the ability to pull particles out of the sim to convert them to CPU AI agents, and push them back to the GPU sim. Still a few quirks to solve.

#UE #Blender #UnrealEngine #tech #gamedev 🥳My 𝗚𝗮𝗺𝗲 𝗧𝗼𝗼𝗹𝘀 addon is finally complete and officially available as a Blender Extension! I spent way too much time coding it + writing a 150-page manual and over 2 hours of video tutorials. 😅 youtube.com/watch?v=hC2_... More detail in the🧵

#UE5 random doodle. Some more FFT flipbook experiments. 4K 16bit flipbook + 2K*1K detail normal flipbook + precomputed splash position LUT. Not the best looking ocean out there for sure, but it's cheap and memory footprint isn't terrible I suppose :)

github.com/GhislainGir/BlenderGameToolsDoc/wiki I’ve released a 150-page wiki for my Blender addon. The addon is currently available in early access on my Patreon for a limited time, to gather feedback, fix bugs, and more :)

Cool deep dive thread🧵

#UE #Blender My tool is near completion. Last feature added allows you to bake custom data per bone. Here, it's packed in the alpha channel of the positional texture, making the hands and chest glow. This glow value is initially animated per bone in Blender. Kinda cool.

#UE #UnrealFest Thanks for the goodies Epic 🥰🥰

#UE #UnrealEngine #Blender #gamedev Omg, bone animation textures baker is finally working! I've been fighting this for five days. Everything that could go wrong went wrong :D Now let's polish everything and aim for an alpha release soon-ish 😁

Reinstalled Celeste a while back to get my revenge on this berry. I finally got it😁

#Blender #Python any blender coders out there? I've been stuck on something for a while🫤It can be summarized as follows: I need a PropertyGroup to point to another instance of the same PropertyGroup in a CollectionProperty. Is there a magic solution? More details in🧵

#Blender #UE #gamedev Continuing my efforts to create a Blender add-on that can bake just about any kind of data in just about any way known to man :D I've just finished implementing an improved version of Pivot Painter 2.

A new (and probably last) version of my in-browser particle life simulator with some highly-requested features: ✅ Toroidal (aka looping) map ✅ Copying URL to share your simulation with others ✅ Various UI improvements lisyarus.github.io/webgpu/parti...

I've been enjoying coop sessions with my bro on Age of Darkness. Cool RTS! How can you replicate that crazy amount of data tho? Final wave can be have up to 80k units🤔Sending pos, health, unit type etc per unit results in many mb of data to send over the network #UE #gamedev

Plants now react to drum sounds! Still wip but already excited about how this is turning out. Big shoutout to @ghislaingir.bsky.social 's awesome Niagara + Render Target breakdown #indiegame #gamedev

#UE #gamedevelopment #shader #hlsl It is my understanding that bit-packing 2 floats into a 32-bit one can create a NaN if exp bits are all ones. So I use 15- & 16-bit of precision and split the 15 bits to the left into two groups separated by a zero to prevent that. Is that dumb?

real interesting slide set from Tim S at HPG 2009: web.archive.org/web/20090823... . You can see some of the seeds that led to his Verse language in here. Interesting to see some of the predictions that panned out and/or didn't ... (1/n)

Last time I checked, non-power-of-two textures were padded and stored as the next power-of-two textures in GPU memory. Still a thing in 2025, right?

#Blender #vfx #gamedev Working on a free Blender addon that will eventually pack all baking techniques commonly used in the video game industry. This video is a demonstration of the most basic technique: vertex animation textures, or VAT

#UE5 #gamedev #tutorial #vfx #Niagara #UnrealEngine5 🥳New video is out! I dive into the process of painting dynamic masks onto skeletal meshes & driving dripping effects using Niagara.

#UE5 Decided to reduce the scope of my next video because I've hit a wall😒Not enough neurons in my smol brain, it seems. In the meantime, here's a tool to debug a unit direction converted from world to uv space using Niagara's skeletal mesh interface 🤷

#UE5 #vfx Today's doodle. It'd be nice for the wetness map to fade downward along the character's surface but I have a feeling this is tricky to do. Dunno, might give it a try tomorrow.

#UE5 Friendly reminder that this exists: github.com/Ryan-Dowling... Get rid of that parallax occlusion mapping in your shader :D

#UE5 #gamedev #tutorial #UETips #UnrealEngine 🥳New video is out on my YT! I go over many techniques commonly used in UE to make characters interact with the ground, water, particles etc. I also break down a system I built to generate your own interaction data from capsules.

#UE5 #gamedev #tutorial I'm releasing a new breakdown video this week end :) Stay tuned

#UE5 Yay, my first compute shader dispatched in CPP. I won't say how long it took me to get it working because it'd be embarassing, but it's finally working. Good grief.

For the love of our eyeballs, do not align your ember particles to velocity! Don’t give them that comet texture either, ugh. Let’s make ✨physically based flying embers✨ A Unity vfx graph implementation and explanation below. 🧵

#UE5 I find joy in little things. Today I learnt how to make my own material expression in CPP🤷It's not much it doesn't do anything yet, but a little bit everyday and you eventually get there.

I'm doing research on sparse virtual textures and I stumbled upon a cool 2008 talk by Sean Barrett www.youtube.com/watch?v=MejJ... I love youtube.

Advanced Delegates in C++ All the flavours, all the considerations. https://benui.ca/unreal/delegates-advanced/ #UnrealEngine

#UE5 #gamedev #UnrealEngine #UnrealEngine5 I'm working on my next breakdown video :) This'll likely end up being a multiple part series because there's a lot to say about this. I'll also be looking to port it to C++ and bypass Niagara entirely at some point

To the weird website selling my game: 1. It costs €2.99 and NOT €32.32! 2. It's a One Size fits all!

Graphics Programming weekly - Issue 375 - January 19th, 2025 www.jendrikillner.com/post/graphic...

#UE5 Wanted to give Virtual Heightfields a try. I guess I picked the wrong time, they crash in 5.5.X :D

#UE5 #UETips 🥳New video is out on my YT. This one is silly, probably useless even but whatever. It's a thing I tried years ago, when I was experimenting with flipbook water textures and trying to think of the different ways I could sample the wave height to drive buoyancy.