[psx] ScePSX Beta 0.1.7.9 28/12/25

ScePSX Beta 1.7.9 28/12/2025

Important Changes

• Removed the project's dependency on [OpenGL.NET]; the OpenGL front/back ends now use self-declared interfaces
• Release versions no longer require the OpenGL.dll file
• Refactored the OpenGL front end

Reduced Release Package Size

• Lightweight Version: 1.05 MB
• ReShade Version: 5.63 MB

Compatibility Fixes

• Removed [OpenGL.NET] to resolve potential compatibility issues caused by the .NET Framework 4.8 components

Bug Fixes

• Fixed potential material loss when switching the OpenGL back end with other back ends
• Fixed potential save corruption when saving quick saves via the OpenGL back end
• Fixed flickering lines at the top of the screen in certain games with the OpenGL back end

ScePSX Beta 1.7.8 20/12/2025

Fixes

• Fixed DMA OTC channel linked list transfer
• Some trivial optimization

ScePSX Beta 1.7.7 21/09/2025

BUG Fixes

• Fixed the issue of missing textures in certain games caused by incorrect texture upload alignment in the OpenGL backend
• Fixed the issue of missing game textures caused by incorrect texture color lookup table conversion in the Vulkan backend

Known Issues

• Vigilante 8 2 (SLUS-00510): Game crashes due to incorrect DMA-to-GPU transfer data
• Tom & Jerry: in House Trap (SLUS-01191): Partial texture loss occurs when using the OpenGL or Vulkan backend

ScePSX Beta 1.7.6 28/08/2025

Version 0.1.7.6 Release Notes

Compatibility Fixes

• Added MDEC cache to support games that don't reuse cache during FMV playback (e.g., Vigilante 8 1 & 2, Tom & Jerry: In House Trap)
• Added DMA wraparound to support games using out-of-bounds transfer addresses (e.g., Vigilante 8)
• Added fixed memory controller addressing to fix audio loss in games with uninitialized SPU addresses

Postponed Features

• Texture replacement/export functionality delayed until v0.1.8

ScePSX Beta 1.7.5 28/06/25

Vulkan Backend

• Refactored rendering pipeline for improved frame rate
• Updated pipeline blending mode
• Added PGXP high-precision coordinate support
• Merged multiple shaders

PGXP

• Improved 2D game compatibility for core features

ReShade Integration

• Removed SSRT and NeoGI to improve loading speed

ScePSX Beta 0.1.7.2 8 July 2025

PGXP

• Added the following sub-functions and corresponding settings. PGXP settings take effect without requiring a restart::
• PGXP Core (Recommended for 3D games)
• PGXP High-Precision Rendering (recommended,, minimal issues)
• PGXP Affine Correction (No issues in most cases)
• PGXP Average Depth (recommended, minimal issues)
• PGXP Normal Correction (Minimal visible effect, resource-intensive)
• PGXP Color Correction (Some games may have color issues)
• PGXP Clipping Fix (may cause missing textures)
• PGXP Coordinate Capture (may cause texture errors)
• When loading a quick save from version 0.1.7.0, the PGXP feature does not take effect.

UI

• Fixed multiple English translations

ReShade Integration

• Upgraded integrated ReShade version to 6.5.0
• Modified GPU backend pipeline to be compatible with ReShade 6.5.0
• Added three new fx shaders: CRT, xBRv4, CRT_Lottes

New Features

• Added color smoothing for FMVs, enabled by default

ScePSX Beta 0.1.7.1 6 July 2025

PGXP

• Notes:
  • To restore the "breathing" effect of 3D characters in games, ScePSX implements PGXP by increasing GTE precision.
  • When PGXP is enabled, the following may occur:
    • Slight increase in CPU usage (approximately 1–3%)
    • Missing visuals in 2D games (PGXP is not needed for 2D games)
    • The PSX logo during BIOS startup will no longer appear
• PGXP is disabled by default and must be enabled manually in the settings.

Bug Fixes

• Fixed controller vibration issues
• Fixed graphical glitches when switching between FMV and gameplay
• Fixed audio pops/clicks when using incorrect CUE files
• Fixed compatibility issues with the GTE CC instruction (e.g., R4)

 Important Compatibility Notice

Quick Save Format Upgrade!
Due to core module refactoring in version 0.1.7.0, quick saves from this version (≥0.1.7.0) are incompatible with older versions (≤0.1.6.6).
For details, please see the 0.1.7.0 changelog.

ScePSX Beta 0.1.7.0 3 July 2025

Refactoring Motivation

• Comprehensive overhaul of historical architectural flaws in SPU/CD-ROM/XA-ADPCM modules,
• permanently resolving accumulated compatibility issues to establish foundation for high-precision emulation and future expansion.

Core Audio & CD-ROM Subsystem

• Eliminated audio tearing in PAL/15FPS games
• Precise compatibility for games leveraging "PS1 hardware quirks"
• Resolved timing-sensitive anomalies (crashes/texture glitches)
• Enhanced native audio reproduction

Graphics Backends

• VRAM architecture overhaul (OpenGL/Vulkan)
• Rendering output optimization for OpenGL & Vulkan
• Software renderer enhancements for pixel-art games

Critical Compatibility Notice

• Instant Save Format Upgrade!
• Due to core module refactoring, saves from this version (≥0.1.7.0) are incompatible with older releases (≤0.1.6.6)
  • Legacy saves will fail to load → Create new saves after updating

Performance & UX Optimizations

• 500% faster directory scanning → Near-instant game library loading
• Optimized file-loading logic → Smoother navigation
• Improved UI responsiveness & intuitive interaction

ScePSX Beta 0.1.6.6 Latest 30 May 09:56

Armoured Core (1997, Sony)

Bug Fixes

• Fixed potential crash when retrieving cheats under poor network conditions
• Fixed issues during directory scanning
• Fixed crash that may occur when loading .img or .bin files directly without using .cue files
• Fixed ReShade UI flickering on certain GPUs when using the Vulkan backend
• Fixed screen content being cropped vertically on some Windows 10 and Windows 11 systems
• Fixed texture alignment issues in the Chinese versions of Parasite Eve and Vagrant Story

New Features

• Added FastBoot: Bypasses BIOS boot process (games still use BIOS functions)
• Support for cue file encodings across multiple code pages (GBK/GB2312/BIG5/Shift-JIS/ISO-8859-1/CP1251)
• MDEC supports 4/8-bit and YUV mono decoding

ScePSX Beta 0.1.6.5 27 May 2025

Version 0.1.6.5 Update Notes

• Bug Fixes
  • Fixed the GTE instruction handling.
  • Fixed GPU rendering height issues.
  • Fixed crashes caused by frequent renderer switching.