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A Voronoi fragment shader stutters on an RTX 4070; the author discovers that replacing `fract()` with `x‑floor(x)` eliminates the glitch, suspects a driver miscompile, and documents a week‑long manual debugging process with code, device tests, and LLM‑assisted hypotheses.
The author built zSST, a SystemVerilog recreation of the 3dfx Voodoo 1 graphics chip, and integrated it with a z486 CPU on a Xilinx KV260 to run DOS games with original 3D rendering at 100 MHz. The post details the fixed‑point pipeline, stage breakdown, and memory subsystem needed to sustain one pixel per clock.
A practical deep‑dive into modern texture memory layout: block‑compression (BC7), swizzle ordering (Morton/Z‑order), mip‑map hierarchies, and concrete debugging tricks for cross‑platform texture conversion.
Srijika is a system for restyling OpenType fonts across nine Indic scripts by reusing existing template font layout data (GSUB, GPOS). This approach ensures complex script features like conjuncts remain consistent, addressing a major challenge in Indic font generation.
The paper presents SNAP3D, a physics‑guided pipeline that converts a single image into a set of 3D parts that can be assembled without interpenetration. By using simulation‑driven connector placement and a new physics‑based evaluation, the method yields assemblies that are both geometrically accurate and stable enough for 3D printing.
