After an extensive collaborative and empirical development loop, these presets are optimized specifically to overcome the unique physical challenges of displaying high-fidelity CRT shaders on 4K self-emissive WRGB WOLED panels (specifically targeted on a Sony KD-55A85 display).
Rather than chasing a mathematically sterile “digital stencil” lookup, these configurations focus on using the crt-guest-advanced core to replicate the actual analog, thermo-chemical imperfections that gave these legendary monitors their unique, organic three-dimensional pop.
Key Architecture Accomplishments:
- WRGB Phase Correction: Traditional shaders are built for flat RGB/BGR LCD pixel structures. The physical presence of the White (W) subpixel gate on LG Display WOLED panels introduces a horizontal spatial offset that creates harsh color fringes and flattens screen depth. These configurations utilize precision-tuned horizontal phase windows (12% for the Sony Grille, 20% for the Nanao Honeycomb) to absorb this offset, allowing the light to bleed organically to mimic true phosphor bloom and glass refraction.
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Symmetric Phase Alignment:
smoothmaskis held tight to prevent downstream back-pressure from distorting the color volume. Instead,s_sharpis used strictly within the horizontal signal plane to cleanly suppress non-integer horizontal aspect scaling waves (such as the PC Engine’s 256px columns stretched to 4:3) without causing any vertical scanline row bleeding or contrast loss. -
Protected First-Glow Color Chemistry: Includes custom-built 1024x32 3D Identity color LUT cubes mapped to real NTSC-J (Arcade P22 phosphors) and cold Sony broadcast colorimetry. These load natively inside
Pass 5 (LinearizePass)and are entirely insulated from downstream clipping, maintaining profound saturation levels.
Profiles Included:
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Sega Arcade Astro City (Nanao MS9-29): Built around a 4K Honeycomb Dot-Mask (
shadowMask 6/masksize 2.0). Soft vertical scanning focus models the dynamic raster spot behavior of an open arcade chassis to maximize 3D asset mass. -
Sony Broadcast KV-32XBR48 (Super Trinitron): Built around a native 1:1 Aperture Grille layout (
shadowMask 10/masksize 1.0). Utilizes a deep vertical scanline focus trench (gsl 2.0) alongside a simulated Beam Current Limiter (BCL) luma governor to preserve high-rigidity broadcast text clarity without digital highlight clipping.
GitHub Repository:
Includes the shaders to drop into the CRT folder, and Luts to drop into the Guest Advanced Lut folder. Version of Guest being used is 430.
SECTION 1: Arcade - Astro City - 15kHz STANDARD-RESOLUTION ARCADE MONITORS
