Separate RayTracingScene for PostProcess Effect?

Development Rendering
,
1

Is it possible to implement a RayTracingScene for a system which manages a collection of meshes separately from the world and use it for a post process effect?

I want to use raytracing for a hybrid raytrace/raymarch volumetric rendering system, where sampling occurs through TLAS BVH → BLAS Tris → Sparse Volume Texture ray march.
Heterogenous volumes system has its own FRayTracingScene instance stored in the Scene class (ScenePrivate.h) for the same reason I want to do it; to manage the objects separately from the rendered scene and to have greater control. As far as I can tell, there isn’t a way to use the raytracing scene from within the project. And there’re likely more obstacles to implementing this system within a project without source code modification.

Some combination of including the below

        PublicIncludePaths.AddRange(
            new string[] 
            {
                System.IO.Path.Combine(GetModuleDirectory("Shaders"), "Private"),
                System.IO.Path.Combine(GetModuleDirectory("Renderer"), "Private"),
                System.IO.Path.Combine(GetModuleDirectory("Renderer"), "Public"),
                System.IO.Path.Combine(GetModuleDirectory("RenderCore"), "Public"),
            }
            );

        PrivateIncludePaths.AddRange(
            new string[] {
                System.IO.Path.Combine(GetModuleDirectory("Renderer"), "Private"),
            }
            );

        PublicDependencyModuleNames.AddRange(
            new string[]
            {
                "Core",
                "CoreUObject",
                "Engine",
                "RHI",
                "RHICore",
                "Renderer",
                "RenderCore",
                "RHI",
                "RHICore",
            }
            );

        PrivateDependencyModuleNames.AddRange(
            new string[]
            {
                "Core",
                "CoreUObject",
                "Engine",
                "RHI",
                "RHICore",
                "Renderer",
                "RenderCore",
                "Projects",
                "DerivedDataCache",
                "Shaders"
            }
            );

#include <RayTracing/RayTracingScene.h> // include this
 
FRayTracingScene RayTracingScene; // declare this somewhere in a class