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Roadmap.md

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Roadmap for development

Main (rasterizer) rendering backend

  • Lighting components and material data
  • Forward+ rendering algorithm
    • Initially use simple Blinn-Phong shading
    • Debug displays
  • Environment maps
  • PBR shading model
  • Organize backend code to be more re-usable.
    • Move postprocess pipeline to separate module
  • GPU driven rendering
  • Raytraced reflections
  • Fog
  • Water/fluid simulation
  • Atmospheric scattering
    • Base implementation
    • Move transmittance into lookup texture
    • Additional UI changes (allow setting sun, possibly multiple suns)
  • Vertex pulling instead of vertex attributes
  • Put all meshes in a single large VkBuffer
  • Terrain system
  • Particles
  • Raytraced shadows using VK_KHR_ray_query
    • Rebuild TLAS every frame
    • Rebuild BLAS only when needed
  • Support different vertex formats so shading doesn't break on ex. powerplant.
  • Improve soft shadow sampling
    • Fix final few bugs
  • Denoise shadows

Asset pipeline

  • Make assettool take a single file as argument
  • Extend assettool with command line options
    • RGB/sRGB color space
  • Make assettool work for images that have fewer channels.
  • Model loading and processing
    • json model format linking multiple meshes and materials together
    • processing .obj into .ent and necessary .mesh and .tx files
    • add model loading to engine
      • add blueprinting ECS
      • add copying from blueprint ECS to real ECS.
      • model loading creates a new blueprint entity
      • loading model into scene copies the blueprint into the real ecs
  • Asset hot-reloading
  • Remove STB as it doesn't support DDS.
  • Move away from assimp and create own loader
  • Possibly create smart model splitter that splits meshes by locality to improve raytracing performance.

UI/Editor

  • Asset browser
    • Preview rendering
    • Drag and drop for asset handles
    • Integrate assettool into the main Andromeda project
  • Gizmos
    • Rendering world grid
  • Project system
    • Scene serialization
  • Object picking in editor
  • Integration of Python/Lua or even custom scripting language

Small tweaks and patches

  • Settings menu
  • Performance display
    • Timings for each pass
  • Color type for components fields to distinguish between vectors and colors
  • Correctly handle tangent W, formula is bitangent = cross(normal, tangent.xyz) * tangent.w
    • Maybe assimp already handles this internally?
  • Support for materials that have solid color properties instead of textures
    • ex. mugs in coffee cart model
  • Make PostProcessingSettings truly optional by removing stuff like automatic exposure from the pipeline if disabled.
  • Fix case in renderer with no lights loaded

Performance

  • Minimize allocations in the engine to further improve performance
  • Bind acceleration structure to different set to remove overhead from constantly allocating large descriptor sets.
  • Remove scalar block layout and replace with proper padding (each field 16-byte aligned most likely)

Farther future

  • Raytraced rendering backend
    • Full raytraced backend should probably not be real-time and only update at certain intervals.
  • Possibly integrate Nvidia RT denoiser API