PeerTube de WeKeys

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PeerTube de WeKeys episodes

  • Fast Houdini to UE5 Particle Export | Unreal Engine 5 / Houdini Tutorial (Pt. 1/2)

    Support on Patreon: https://www.patreon.com/dannylaursen

    Learn an advanced workflow to export up to two million particles from Houdini to Unreal. It works similarly to SideFX Labs' Houdini to Niagara. Instead of exporting the Houdini particle data to a json file that Unreal Engine reads, we export to an exr sequence. This exports much faster from Houdini and it can be loaded on the GPU, making the simulation run far better in UE5. We will go over how the system works, and walk step-by-step through building it yourself. At the end, you will know how the system works, and how to prepare it for high quality VFX / motion graphics rendering. One small caveat: The larger (in coordinate space) the simulation, the more imprecisions will happen because of 16-bit data precision.

    In the next video of this series, we will work with our Houdini simulation and build shaders and set up studio lighting in Unreal Engine 5. We will also deal with some artifacts you might run into when rendering in UE5, and discover some neat tips and tricks for getting around it.

    UE5 and Houdini project files and assets available here. Free with code: UERENDER https://dannylrsn.gumroad.com/l/sfzgs

    Junichiro Horikawa: "Houdini to UE5 - How to Send Geometries with Attributes - Tutorial"

    https://youtu.be/iWmeU97l_2o

    phire de: "How to render dynamic point clouds in Unreal Engine 4.25 with Niagara"

    https://youtu.be/TmG-XIxaLVQ

    Medium post that inspired this experiment: "How To Play Back Volumetric Point Cloud Animations In UE4"

    https://medium.com/xrlo-extended-reality-lowdown/how-to-play-back-volumetric-point-cloud-animations-in-ue4-9b24b7144d4a
    (Thanks to Kim Strandli for getting me hooked on this idea)

    The Houdini simulation is inspired by Tactyc Studios: https://www.behance.net/gallery/150854803/10K-on-Instagram-Clip

    Chapters:

    00:00 - Intro
    00:30 - Overview
    01:05 - Houdini Alembic Export
    01:34 -Transform to UE Space
    01:49 - Points to Grid (VEX)
    03:29 - COPs Points to Texture
    06:09 - Export EXR Sequence from Houdini
    06:44 - UE5 Project Setup
    07:30 - Niagara Preparation
    09:36 - Niagara Read Particle Data
    12:35 - Niagara Optimization
    14:15 - Import EXR Sequence to UE5
    15:12 - Setup Level Sequence
    16:43 - Niagara Mesh Renderer
    17:50 - Import Alembic Cache to UE5
    18:29 - Recap
    19:14 - Next Steps

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  • Houdini Tutorial | Blooming Flowers | Model, Rig, and Animate | Part 1

    Support on Patreon: https://www.patreon.com/dannylaursen

    Download HIP file for free: https://dannylrsn.gumroad.com/l/saqioy

    This is the first part in a tutorial series that will go through creating procedural flower blossoming animations in Houdini. In this part, we go through some basics of procedural modeling and KineFX to create a single flower petal with a rig that allows the user to shape and animate between a "bud pose" and a "bloom pose". I initially intended for this tutorial series to be for beginners, but feedback from the community proves that intermediate users have a better experience.

    In the next parts of this series, we will make a phyllotaxis point generator to copy the petals onto, create a system for blending multiple skeletons based on a growth attribute, create procedural animation curves, and simulate the flower in Vellum. At some point throughout the series, we'll talk about using this procedural setup to model a flower and its growth animation based on photo reference. At the end of it all, we will make flower materials, light, and render the flower animation through Solaris using Karma.

    These methods are a mix of things I have seen from John Kunz on Patreon, Entagma, and some things I figured out together with Simon Reher.

    Some interesting resources to explore this topic further:

    Flower Garden | Carl Krause | Paris HIVE 2023
    https://youtu.be/9bsb-WBGPTc?si=Jq7xsayUYdgSLDMi

    Flower Projects | Paul Esteves | MucHUG

    https://youtu.be/U1k1qmim3iA?si=Hk3A_vQMw2au5VgD

    My KineFX notes on Notion:

    https://dannylrsn.notion.site/KineFX-74b5365a382c4f6c8ccba3c5f1546c32?pvs=4

    Feel free to ask any questions or leave feedback in the comments. Would be happy to see any flowers people create.

    Chapters:

    00:00 - Intro
    00:29 - Overview of Part One
    00:50 - Part One - Petal Shape
    04:55 - Part Two - Petal Skeleton (KineFX)
    06:00 - Skeleton Orientations
    07:55 - Note on Fusing the Skeleton
    08:12 - Rig Doctor
    08:42 - UV Deform Skeleton to Petal
    11:03 - Capture Skin Weights
    11:46 - Part Three - Deformation and Animation
    13:38 - Skeleton Blend
    14:24 - Petal Animation

    Instagram - https://www.instagram.com/danlrsn/

    Behance - https://www.behance.net/dannylaursen1
    Artstation - https://www.artstation.com/dannylaursen

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  • How to Start Playing SL Colonies | Second Life RPG

    Everything you need to go from a brand-new Second Life avatar to your first

    gathering run in SL Colonies — a survival, farming, crafting and trading RPG
    built inside Second Life.

    THE ORDER MATTERS

    The HUD comes first. You cannot register without it, because registration

    happens through the link the dispenser hands you.

    1. Visit the SL Colonies Emporium and click the HUD & Meter dispenser. It is
    2. free.
    3. The bot sends you three things: the object, a group invite, and a
    4. registration link. Do not unpack the object yet.
    5. Join the group. Members get 5% off in all our vendors, plus notices about
    6. what is coming.
    7. Click the registration link. It registers your avatar key and username with
    8. the meter site.
    9. Enter your email carefully. A typo here means you cannot log in.
    10. Pick your gender and your race. Races carry different stat bonuses — wisdom
    11. and intelligence favour magic, charisma favours trading.
    12. Reset your password from the email you receive, then log in.
    13. Now rez or wear the object and unpack it. Wear the meter first, then the HUD.
    14. WHAT YOU START AS

      Everyone begins as a Colonist. It is the starter profession: you can use any

      level-zero crafting station, but you do not earn crafting experience until you
      choose a profession properly. Take the time to look around and decide.

      WHAT IS IN THE BOX

      The HUD and meter are essential — without both attached you cannot gather,

      craft, or interact with anything in SL Colonies. The Compass is optional. The
      registration board lets other people register from your own land instead of
      travelling to the main store.

      Start your journey: https://slcolonies.com/start-your-journey

      The whole product range: https://slcolonies.com/treasure
      Get the HUD in-world: https://maps.secondlife.com/secondlife/Noru/52/95/3901

      Questions are welcome in the comments, on our Discord, or on the forums.

      Discord: https://discord.gg/nAgxReW

      Forums: https://forum.slcolonies.com

      #SecondLife #SecondLifeRoleplay #SLColonies #SurvivalRPG #RoleplayGaming

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    15. Fin du Zevent… Hey les Streamers là, on n'en peut plus ꩜ .ᐟ Avec @sonie_couture

      Rediffusion du live Twitch du 07 septembre 2026

      Ma chaîne Twitch : https://www.twitch.tv/artwolive

      Avec @Sonie_Couture

      Soutenez le projet :

      https://streamelements.com/artwolive/tip

      Un live du lundi au mercredi à partir de 19h ! Lives bonus les vendredis après-midi.

      Le Shop Noir Pastel

      🖤☠️ https://noirpastel.net

      Chaîne Principale : https://www.youtube.com/@ArtwoXYZ

      Tiktok : https://www.tiktok.com/@artwoxyz
      Insta : https://www.instagram.com/artwo/
      Twitter : https://twitter.com/Artwo
      Discord : http://link.artwo.xyz/SweetAFDiscord

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    16. Why I built Pockity: A modern console with old-school limits

      I’ve enjoyed making Jurl on older computers, trying to get the same game working on vastly different sets of resources and requirements was a fun challenge.

      So what about if I made a gaming system that was based on relatively modern components and software, but had the same challenges of those old systems?

      Enter Pockity, a gaming ecosystem that includes open-source firmware, sdk and an open-source handheld design to kick it off.

      It’s not quite finished, I’ve still got a couple of things to fix - like sound - but it’s advanced enough that I can share what I’ve made and show off some examples.

      More info here: https://www.pockity.co.uk

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    17. Another "little snack" for the not-so-little dude 🐾 07/09/2026

      I had ordered a few of the bigger snacks for Koa. After a very short, and very broken, night, I wanted to relax with some telly, without having to worry that Koa would try to "inhale" his snack when it became "just small enough". As Koa almost kills himself at times, trying to do this, even when I'm trying to watch him like a hawk. With a snack this "little", I am sure that it should be safe for him for some time, so I can relax a bit...

      Video Alt Text:

      Scene 1: The Temptation
      The video opens with Cynni holding a large, cylindrical white dog chew in their lap. Pacing near the sofa is Koa, a beautifully shiny, young chocolate brown Labrador Retriever pup with an endearing little strip of white fur right in the middle of his chest. Cynni playfully waves the treat, teasing the young pup who immediately locks his eyes onto the prize.
      As Cynni tempts Koa, they playfully ask him in Dutch:

      "I don't know if Koa wants a little snack. Does Koa want a little snack?"

      Scene 2: The Very Good Boy

      Koa wiggles closer, his puppy excitement bubbling over. Before handing over the goods, Cynni asks him to sit. Like the absolute best boy he is, Koa obediently plonks his bottom onto the wooden floor, gazing up at Cynni with big, soulful brown eyes.
      Cynni instructs him, saying:

      "Go sit down nicely then."

      Scene 3: The Snuggle and Nibble

      Cynni hands over the massive treat. Koa gently takes the chew in his mouth and proudly trots over to his cozy, fluffy grey and black dog bed. He lies down, holding the large roll in his mouth almost like a comical, oversized cigar, looking utterly spoiled and perfectly content.
      As he settles in with his prize, Cynni asks:

      "Is it tasty, Koa? Do you have such a nice snack? Let's see then. Ooh, what a nice snack! Nom nom nom nom nom."

      Scene 4: Maximum Spoiling

      Koa playfully holds the snack, showing it off to the camera. He briefly gets up to give Cynni a little tail wag and a closer look before settling back onto his bed. Cynni reaches out to lovingly pet Koa's soft, chocolate-brown head as the pup prepares to truly devour his well-earned prize.
      Cynni affectionately tells him:

      "Enjoy it nicely, sweetheart. Enjoy your meal, little Koa."

      What kind of delicious chew is Koa enjoying today?

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    18. Hap-P-Kid Toys (Wang Kwong) M.A.R.S Super Starrior

      Simple robot but a good one. had to replace the speaker but for some reason he’s still really finicky - especially his switch - and the try me button doesn’t always respond well. Otherwise he works good!

      Batteries are FINE, just runs on 3v so of course it’s going to be slow. Don’t comment about it.

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    19. RIOT Summit 2026, Tom Hert, "Tipping Scales: Analyzing the impact of LLM on FOSS Maintainers"

      Tom Hert

      Slides: http://summit.riot-os.org/2026/wp-content/uploads/sites/21/2026/09/Day2-ai-stats.pdf

      Over the last years LLM has started significantly impacting Free Open Source Software, this is also true for RIOT. In 2026 we introduced our own LLM policy, including tracking AI usage in hopes of understanding this shifting trend.

      In this talk we will look into how Contributor behavior has changed and also the resulting challenges for Maintainers by mapping the data, learning from past incidents and proposing the next steps.

      Tom is a RIOT Maintainer and Master student at the HAW Hamburg. Previously working on the Raspberry Pi Pico 2 and Documentation Revamp in RIOT, currently working on general RIOT maintenance and leading the LLM policy effort.

      https://summit.riot-os.org/2026

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    20. RIOT Summit 2026, Charlélie Pignol, "NewSpace"

      Charlélie Pignol

      Slides: http://summit.riot-os.org/2026/wp-content/uploads/sites/21/2026/09/Day2-Thingsat-PIGNOL-compressed.pdf

      The NewSpace revolution, and particularly the emergence of CubeSats and nanosatellites, has created new opportunities for embedded systems technologies. Modern small satellites increasingly rely on low-cost, low-power, and highly integrated components, including resource-constrained microcontrollers (MCUs), MEMS sensors, off-the-shelves imagers, software-defined radio technologies, and low-power communication transceivers such as LoRa® devices. These technologies enable the rapid development and deployment of affordable space missions while significantly reducing development cycles and operational costs.

      The ThingSat project is an in-orbit LoRa gateway designed as an experimental platform for evaluating Low-Power Wide-Area Network (LPWAN) communications in space. The project investigates several emerging use cases, including Satellite Internet of Things (SatIoT), inter-satellite links (ISL), and the prototyping of innovative and affordable satellite services. Potential applications include Positioning, Navigation and Timing (PNT), ranging and localization services, Emergency and Warning Services (EWS), Search and Rescue (SaR), Automatic Identification System (AIS) reception, Direct-to-cell for the poor man (Meshcore and Meshtastic) and other distributed communication modes (SCHC …).

      This presentation will provide an overview of the software architecture developed for ThingSat and its integration with the RIOT operating system. Particular attention will be given to the reuse and adaptation of key open-source middleware components and drivers required for space operation. The presented software stack includes:

      – A mission engine scheduling SatCom experiments according to time, orbital position, and mission constraints.

      – A space-adapted SX1303 LoRa gateway driver enabling multi-channel LoRa packet reception and transmission;
      – Support for repeat and store-carry-and forward protocols for LoRaWAN, Meshcore and Meshtastic networks
      – SUIT (Software Updates for the Internet of Things) for secure remote firmware over-the-air software updates of CubeSat subsystems through the spacecraft onboard communication buses, including CAN, RS-485, and I²C;
      – TensorFlow Lite Micro (TFLM) for onboard artificial intelligence and edge inference, enabling real-time attitude anomaly and outlier detection from IMU sensor measurements;

      The next generation of the firmware will progressively embrace the Rust programming language to improve memory safety, reliability, and long-term maintainability of critical onboard software. It will be built upon Ariel OS, a modern Rust-based embedded operating system designed for resource-constrained devices, while preserving interoperability with the existing RIOT OS ecosystem and software components. This evolution aims to leverage Rust’s strong safety guarantees to reduce common software vulnerabilities and increase the robustness of future CubeSat and NewSpace missions.

      The presentation will also discuss the challenges of deploying terrestrial IoT technologies in the space environment, including radiation constraints, intermittent connectivity, power limitations, and long communication delays. Finally, lessons learned from the development and in-orbit operation of ThingSat will be shared, highlighting how open-source embedded software ecosystems can accelerate innovation in NewSpace missions and contribute to the emergence of next-generation satellite services.

      Charlélie Pignol is an embedded systems engineer at CSUG (Centre Spatial Universitaire de Grenoble).

      https://summit.riot-os.org/2026

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    About PeerTube de WeKeys

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    Welcome sur cette instance WeKeys. Elle est dédiée à la réparation électronique de tout type. Axée sur l'éducation afin que les mentalités changent. Oui il est possible de réparer une carte mère sans…