Renderer Rewrite Considerations

[Raildex]

• MeshSwaps (TE/TEN)

  • Refactor Meshswaps so that a single slot has all possible MeshSwaps within the model
  • During Runtime, Simply Hide/Show the corresponding MeshSwaps
  • LaraSkin will receive ShotgunHand,PistolHand,FlareHand directly, on the same Bone position
  • This is more flexible, because you can give any arbitrary object arbitrary meshswaps (and change them through code/lua at some point)
  • Preferably either compiled, or directly in WAD2 data

• DrawRoutine for Item makes a comeback (TEN)

  • DrawRoutine is a simple function of the signature void(ITEM_INFO* , RenderPass)
  • Render Pass is an enum that signals the current RenderPass (Depth Pre Pass, Reflection Pass, Opaque Pass, Transparent Pass, PostProcess Pass )
  • DrawRoutine pushes To-Draw Polygons ("Buckets") onto a queue
  • Since Static Items become ITEM_INFO*s at some point (hopefully), everything can be rendered at once

• Rendering (TEN)

  • Forward+ Rendering
  • Rendering gets an additional Light Cull Pass
    • Screen is subdivided into small tiles
    • Lights are tested against these small tiles
    • Tiles fill a list of Lights they have
    • During Shading in Pixel Shader, Tile and it's Light List is determined and shaded accordingly

• Get rid of Renderer11 class

  • Instead use a Frontend namespace and a Backend namespace
  • Frontend provides public functions to add Polygons
  • Backend provides (private) implementation for GraphicsAPI (D3D11, OpenGL, Vulkan, Whatever...)
  • Either PIMPL idiom that allows changing API at runtime
  • Or Only one Graphics API linked (different binaries for different Graphics APIs) (cleaner imo)

• Textures (TE/TEN)

  • Textures should be a collection of 3 textures
  • Diffuse, Specular, Normal
  • Default Value for Specular: RGB(0,0,0)
  • Default Value for Normal: RGB(128,128,255) (tangent space normal)
  • TEN always assumes a Triple of Textures. Water can be rendered with complete transparent texture but with specified Specular+ Normal to achieve waves

• Additional considerations

  • Water
  • Water Surface Portals become their own Bucket/Polygon with a special BlendMode for Water Rendering
  • Caustics should only be applied to vertices directly under water surface portals
  • Baked into Room Vertex Attribute (NOT GLOW)

[Jakub768]

Is all of this implemented? I can close this

[Raildex]

@Kubsy you can close this. It was just a ticket how things could be done

[Jakub768]

Ok