@jooones

Working on game engines & tech. Co-founder of Black Pants Studio.

 Berlin
blackpantsstudio.com
Joined March 2008
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20Media
Finally got tired of using ASTC decoders not written by me. Solving that now.
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On Rusty Trails is coming to Nintendo Switch on Nov. 16! 💙 Add it to your wishlist today ❤ 🇺🇸 nintendo.com/us/store/produc… 🇪🇺 nintendo.co.uk/Games/Nintend… #NintendoSwitch #indiegames

On Rusty Trails for Nintendo Switch - Nintendo Official Site

Shop On Rusty Trails for Nintendo Switch at Nintendo Store. See game details, editions, and availability.

nintendo.com
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So @tha_rami said what I couldn’t Why? Cause I’m in charge of handling the 130 scholarships for the 13 countries for Latam And if I speak 1: nobody cares cause I’m not famous 2: I was worried it could compromise the scholarships that devs need so much So here it is 👇🏽
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Johannes Spohr retweeted
Epic Games Store
@EpicGames9 Mar 2023
Learn more about self-publishing on the Epic Games Store with new publishing tools in the Epic Games Developer Portal. Click through to learn more about the process, requirements and how to get started: epic.gm/self-publishing-tool…
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Johannes Spohr retweeted
Sepehr Taghdisian@septagh24 Feb 2023
A blog post for memory management in C/C++ (Junkyard engine): septag.dev/blog/posts/junkya…
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„My review of the C standard library in practice“ - good, nitpicky but useful summary of libc drawbacks and pitfalls nullprogram.com/blog/2023/02…
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Johannes Spohr retweeted
Riad Djemili 🍍@riadd16 Jan 2023
Some stats about the German games grant program, which gives out €50M per year (€70M in 2023) for German game projects... 🧵
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Hey! We want to discover unpopular open source game engines out there! Consider joining #AlternativeEngineJam itch.io/jam/alternative-engi… #gamedev

Alternative Engine Jam

A game jam from 2022-09-23 to 2022-10-07 hosted by Jānis Skuja & Alternative Engine Jam. "Atvērtās Spēļistrādes Komūna" or "Open Gamedev Community Latvia" welcomes everyone to dig up an unpopular...

itch.io
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Johannes Spohr retweeted
Vladimír Vondruš@czmosra2 Aug 2022
I've been busy!✨ #MagnumEngine now has convenient CPU feature detection and dispatch, both at compile-time and at runtime, and on x86, ARM and WebAssembly: blog.magnum.graphics/backsta…

Convenient CPU feature detection and dispatch

A new Magnum feature provides efficient compile-time and runtime CPU detection and dispatch on x86, ARM and WebAssembly. The core idea behind allows adding new variants without having to write any...

blog.magnum.graphics
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A post in which I explain the thinking and design of Use.GPU: acko.net/blog/the-case-for-u…

The Case for Use.GPU

Reinventing rendering one shader at a time

acko.net
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Johannes Spohr retweeted
Fronkon Games@fronkongames3 Jun 2022
Benchmarking Malloc with Doom 3 forrestthewoods.com/blog/ben… #gamedev #gamedevelopment #indiedev #cpp
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NVIDIA’s New AI Grows Objects Out Of Nothing! 🤖 ▶️Full video (ours): youtu.be/5j8I7V6blqM 📜Source paper: nvlabs.github.io/nvdiffrec/ #nvidia #ai
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Replying to @jooones
My latest ispc BC7 encoder (which is 2-3x faster than ispc_texcomp) is here: github.com/richgel999/bc7enc… I will be fixing this issue there, too. I don't know which other BC7 encoders have this problem, but AMD Compressonator's definitely does.

GitHub - richgel999/bc7enc_rdo: RDO BC1-7 GPU texture encoders

RDO BC1-7 GPU texture encoders. Contribute to richgel999/bc7enc_rdo development by creating an account on GitHub.

github.com
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Just to clarify, as far as I understand, this is a BC7 issue in general with mode 6 opaque blocks causing these weird alpha artifacts. It's not a fault of the Basis encoder/transcoder, I just happened to discover the issue on their GitHub!
Johannes Spohr@jooones28 Jan 2022
Apparently, the only two choices are either accept worse RGB quality, or multiply alpha by (255/254) in the pixel shader. Ugh. github.com/BinomialLLC/basis…

Alpha artifacts in BC7 output · Issue #278 · BinomialLLC/basis_universal

When I use BC7 in my test application, it seems like the basis transcoder is generating semitransparency artifacts in the alpha channel that aren't in the source texture or in the DXT5 transcod...

github.com
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Actually, Basis Universal at least gives you the option at transcoding time to slightly lower RGB channel quality, instead of having to modify all your texture sampling code. For other BC7 encoders, you may have to manually post-process their output to get rid of "faulty" blocks?
Apparently, the only two choices are either accept worse RGB quality, or multiply alpha by (255/254) in the pixel shader. Ugh. github.com/BinomialLLC/basis…

Alpha artifacts in BC7 output · Issue #278 · BinomialLLC/basis_universal

When I use BC7 in my test application, it seems like the basis transcoder is generating semitransparency artifacts in the alpha channel that aren't in the source texture or in the DXT5 transcod...

github.com
Richard Geldreich 🇺🇸
@richgel99913 Jan 2022
BC7 encoders utilize mode 6 and output 0 or 1 p-bits. This means fully opaque blocks can sometimes have alpha values=254. Latest AMD Compressonator's BC7 does this, and so does the UASTC->BC7 transcoder in basisu. This causes issues for some users. This is on our TODO list.
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If you run into this and are looking for a quick hack to fix it, this mentions the workaround (which means you accept worse PSNR for RGB though): github.com/BinomialLLC/basis…

Alpha artifacts in BC7 output · Issue #278 · BinomialLLC/basis_universal

When I use BC7 in my test application, it seems like the basis transcoder is generating semitransparency artifacts in the alpha channel that aren't in the source texture or in the DXT5 transcod...

github.com
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Johannes Spohr retweeted
Mason Remaley@masonremaley13 Jan 2022
⏱ Making Your Game Go Fast by Asking Windows Nicely ⏱ Normally to make code faster, you have it do less work. This isn't about that. Here's a list of ways to make your game faster w/out major changes to content or code. #gamedev #programming #indiedev anthropicstudios.com/2022/01…

Making Your Game Go Fast by Asking Windows Nicely | Games by Mason

How to stop Windows throttling your game, set DPI awareness programatically, use Application Manifests in Rust and prefer discrete GPUs to integrated in OpenGL.

gamesbymason.com
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