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Mastodon: AboutGet the appKeyboard shortcutsView source codev4.4.0-nightly.2025-04-15

#shaders

6 posts6 participants0 posts today
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N-gated Hacker News

🎉 Breaking news: #Shadertoys, because everyone was *begging* for #shaders in Rust! 🚀 Let's pretend porting a few pixel-dancing toys to #Rust #GPU is the pinnacle of human achievement. 🙄 Meanwhile, thousands of developers are ecstatic about... skipping specialized languages? 😂
rust-gpu.github.io/blog/2025/0 #pixelart #development #HackerNews #ngated

rust-gpu.github.io · Shadertoys ported to Rust GPU | Rust GPUWe ported a few popular Shadertoy shaders over to Rust
Public
SaarFurs Info

Achtung kein Furry Event!
Trotzdem könnte es sicherlich für den ein oder anderen Technikliebhaber interessant sein ;)
__________
Revision Party 2025

Wo: E-Werk, Saarbrücken
Wann: 18. - 21.04.2024 (Beginn/Ende jeweils um 12:00)
Webseite: 2025.revision-party.net

Die Revision is eine so genannte Demoparty, was aus der Demoscene kommt.
Die Revision is auch das größte Event dieser Art weltweit und findet jedes Jahr an Ostern in Saarbrücken im E-Werk statt.
Und ja es werden auch einige Fussels vor Ort sein ;)

Weitere Infos zum Thema:
de.wikipedia.org/wiki/Demoszene

Speziell zum Furry Kontext kann ich euch auch ne Aufnahme vom Demoscene panel der letzten NFC empfehlen.
youtube.com/watch?v=QjOakPocLOM

Bei Fragen --> @TomTheDragon (t.me/tomthedragon})

#furry#demoscene#revision
Public
Filip Rachůnek

Hi everybody! And welcome back to our miniseries dedicated to rendering 3D scenes in shaders using the ray marching method. In the third episode, we will bring the previously static scene to life – adding combinations of objects, rotations along different axes and pivots, multiple lighting sources, and morphing using the so-called smooth minimum. #Godot #Godot4 #GodotEngine #GodotTips #shaders #devlog #indiedev
youtube.com/watch?v=Zhtrb6qTgv

YouTubeGodot 4: Raymarching, part 3 (tutorial)By FencerDevLog
Public
Shane Celis

I'm sure this has been done many times before, but I'm still happy to be bit-twiddling in #shaders. The star is this line:

(vertex_index & 3u) + (vertex_index >> 2u)

"Give me the first two bits but add one if the third bit is set.”

The shader generates a UV-mapped quad (right-triangle pair) from the 0 through 5 vertex indices. The screenshot code is abridged; full code is at the link.

github.com/shanecelis/bevy/blo #gamedev #bevyengine #bittwiddling #wgsl

// Gives viewport in clip space `(min_x, min_y, max_x, max_y)` @group(1) @binding(0) var<uniform> viewport: vec4<f32>; // This vertex shader produces the following UVs, when drawn using indices 0..6: // // 0 | 0-----------2 // | | . ´4 // | | a .´ | // | | .´ b | // 1 | 1´5_________3 // V +--------------- // U 0 1 // // The UV vectors can be converted clip-space vertices to cover the entire // screen with the following code: // // ```wgsl // let clip_position = vec4<f32>(uv * vec2<f32>(2.0, -2.0) + vec2<f32>(-1.0, 1.0), 0.0, 1.0); // ``` @vertex fn viewport_vertex_shader(@builtin(vertex_index) vertex_index: u32) -> ViewportVertexOutput { let index = (vertex_index & 3u) + (vertex_index >> 2u); var uv = vec2<f32>( f32(index >> 1u), // X is second bit, 0 or 1. f32(index & 1u) // Y is first bit, 0 or 1. ); let size = viewport.zw - viewport.xy; let clip_position = vec4<f32>(uv * vec2<f32>(size.x, -size.y) + vec2<f32>(viewport.x, viewport.z), 0.0, 1.0); return ViewportVertexOutput(clip_position, uv); }
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