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# Changelog ## Current Features ### Anti-Aliasing And Image Modes - Added `Off` as a clean vanilla baseline mode. - Added `FXAA` as a lightweight post-process anti-aliasing option. - Added `MSAA` with `2x`, `4x`, `8x`, and `16x` sample options. - Added `SSAA` with `125%`, `150%`, `175%`, and `200%` render-scale options. - Added `SMAA` as a higher-quality spatial anti-aliasing option. - Added `TAA` as a temporal anti-aliasing option with history-based smoothing. - Added `NIS Sharpen` with adjustable sharpness strength. - Added `NIS Upscale` with `Quality`, `Balanced`, `Performance`, and `Ultra Performance` presets. - Added `FSR1 Upscale` with `Quality`, `Balanced`, `Performance`, and `Ultra Performance` presets. - Added `FSR1 + RCAS` with the same preset options plus sharpening control. ### Video Settings Integration - Added an in-game anti-aliasing mode selector to the Video Settings screen. - Added always-visible AA control bars that gray out when the selected mode does not use them. - Added a `Sharpness` slider for sharpen-capable modes. - Added an `MSAA Samples` slider for `MSAA`. - Added an `SSAA Scale` slider for `SSAA`. - Added an `Upscale Quality` slider for NIS and FSR1 upscale modes. - Added live tooltips that explain what each option does and what each AA mode is best used for. - Added automatic disabling of the AA selector while `Improved Transparency` is enabled. - Updated the AA settings layout to fit the native two-column Video Settings style. ### Rendering Rules And Compatibility - Kept all AA, sharpening, supersampling, and upscaling effects limited to the 3D scene. - Kept HUD, menus, and other UI elements out of the AA and upscale passes so they stay crisp. - Added scene-only render-target control for post-process and internal-resolution paths. - Added OpenGL-side handling for multisample resolve, supersample resolve, spatial upscale resolve, and temporal history flow. - Added backend-neutral render structure so the mod is organized for a future Vulkan port later. ### Debug Tools - Added an edge-debug display that can be toggled with `F3 + K`. - Added a black-and-white edge preview for checking edge detection coverage. - Added on-screen edge-debug statistics for quick quality inspection. ### Config And Persistence - Added a JSON config file for the mod's settings. - Added persistence for AA mode, sharpness, sample level, upscale quality, SSAA scale, and debug toggles. - Added `recordMetrics` to the config, disabled by default. ### Performance Metrics - Added optional performance recording to JSON reports when `recordMetrics` is enabled. - Added session-wide metrics such as average FPS, median FPS, 1% low FPS, 5% low FPS, frame-time stats, lag spikes, severe spikes, FPS drops, and low-FPS time. - Added per-mode metrics so each AA mode records its own totals and per-minute rates. - Added live metrics output to `logs/salts_anti_aliasing_metrics_latest.json`. - Added archived per-session metrics files in the game `logs` folder on shutdown. ### General Polish - Added scroll-position preservation when changing AA modes in Video Settings. - Added mode-aware settings behavior so controls update live without restarting the game. - Added multiple rounds of visual and performance tuning for FXAA, TAA, MSAA, SSAA, NIS, and FSR1 paths.