HDRP Ray Tracing

Requires: Unity 6 + HDRP + DXR-capable GPU

AutoConfig provides granular control over HDRP Ray Tracing effects. Instead of a simple ON/OFF, each effect has three quality modes:

RayTracingTier Enum

Value	Description
`Off`	Effect uses screen-space fallback (SSGI, SSR, SSAO)
`Performance`	Ray tracing enabled with fewer samples/bounces - suitable for games
`Quality`	Maximum ray tracing fidelity - high GPU cost

Supported Effects

Effect	Volume Component	Properties Set
RT Global Illumination	`GlobalIllumination`	`rayTracing` (bool) + `mode` (enum)
RT Reflections	`ScreenSpaceReflection`	`rayTracing` (bool) + `mode` (enum)
RT Ambient Occlusion	`AmbientOcclusion`	`rayTracing` (bool)
RT Shadows	`RayTracingSettings`	`extendShadowCulling` + `rayTracingMode`
Volumetric Fog	`Fog`	`enabled` + `enableVolumetricFog`

How It Works

Add the AC Volume component (Ation Plugins > AutoConfig > AC Volume) to your Volume GameObjects.
Define your tiers in PerformanceSettings with the desired RayTracingTier for each effect.
When a tier is applied, QualityManager uses Reflection to find the HDRP Volume components and set the properties via VolumeParameter<T>.value and .overrideState.

Pipeline Visibility

AutoConfig automatically hides pipeline-specific options:

HDRP fields (Ray Tracing, Volumetric Fog, etc.) → visible only when com.unity.render-pipelines.high-definition is installed.
URP fields (MSAA, Main Light Shadow) → visible only when com.unity.render-pipelines.universal is installed.
This is enforced at compile-time via #if UNITY_HDRP / #if UNITY_URP directives, powered by versionDefines in the Assembly Definitions.