Engine Decoupling — Phase 6: Stride3D adapter development

[JohnLudlow]

Summary

Implement a Stride3D-based adapter to expose advanced 3D rendering, shading, and pipeline features.

Technical Details

• Implement Stride3DAdapter mapping 3D rendering DTOs, materials, and shader descriptors to Stride's rendering pipeline.
• Expose advanced features (shader/material parameters, lighting, post-processing) via capability flags and extension points.
• Support UI layering for 3D viewports — overlay UI rendered with orthographic projection or separate UI pass.

Requirements

• (Not started) Stride adapter renders 3D scenes and supports UI overlays, shader materials and audio playback for example scenes.
  • GIVEN the adapter is selected
  • WHEN running representative 3D scenes
  • THEN 3D rendering, UI overlays, shader materials, and audio function correctly.

Acceptance Criteria

• Stride3DAdapter implements all Phase 1 contracts.
• 3D scene rendering with shader/material parameters functional.
• UI overlay rendering (orthographic projection or separate pass) implemented.
• Lighting and post-processing exposed via capability flags.
• Audio playback functional.

Dependencies

Parent: #2
Blocked by: Phase 1 interfaces (#11)