https://makertube.net/videos/watch/43f37f67-4c77-425e-8aaa-6514e7233dfd VoidTunnel is a tiny real-time Linux demoscene intro written from scratch in pure C, SDL2, and GLSL—with zero external assets, textures, font files, or audio samples. Everything you see and hear is generated procedurally in real time and packs down to ~3.7 KB using an LZMA self-extracting shell stub (or ~14 KB as a stripped native ELF binary). TECHNICAL SPECS: • Platform: Linux (x86_64) — C99 + SDL2 + OpenGL (GLSL #version 130) • Visuals: Polar-coordinate twisting octagonal/hexagonal cyberpunk tunnel, orbiting cyan & magenta point lights with inverse-square attenuation, beat-synced FOV shockwaves, and CRT scanline post-processing. • Typography: Custom 4×5 pixel bitmap font packed into 20-bit hexadecimal integers directly inside the fragment shader. • Audio: Real-time 48 kHz stereo 4-channel procedural C synthesizer (pitch-swept 909 kick, LFSR noise hi-hat, detuned resonant sawtooth bassline, and stereo-delayed pulse-wave arpeggiator). • Synchronization: Sample-accurate master clock driving both audio synthesis and shader uniforms at 128 BPM. FULL 2-PART TUTORIAL & SOURCE CODE: This intro was built step-by-step as a beginner's guide to Linux demoscene development on WizVoid: • Part 1 (Foundations, Tooling & Neon Tunnel): https://wizvoid.space/#/post/linux-demo-dev-part1-foundations-and-tunnel • Part 2 (Procedural Audio, Shader Text & Packing to 4K): https://wizvoid.space/#/post/linux-demo-dev-part2-audio-text-and-packing • Download Source Code + Makefile (.zip): https://wizvoid.space/assets/downloads/void-tunnel-intro.zip Tue, 20 Oct 2026 18:38:46 GMT https://validator.w3.org/feed/docs/rss2.html PeerTube - https://spectra.video https://spectra.video/lazy-static/avatars/71f5d173-eea9-47a7-b254-f7e91f9f5d25.png https://makertube.net/videos/watch/43f37f67-4c77-425e-8aaa-6514e7233dfd All rights reserved, unless otherwise specified in the terms specified at https://spectra.video/about and potential licenses granted by each content's rightholder.