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The VK backend

Here lives all the VK specific code. It should be as similar as possible to the DX12 directory.

Directory structure

  • base: All the basic code to manage and load textures/buffers/command buffers
  • GLTF: Code to render the scene using different techniques
    • GLTFBBoxPass: renders just the bounding boxes of the objects
    • GLTFBDepthPass: creates optimized geometry, descriptor sets and pipelines for a depth pass. It also renders the pass and supports skinning.
    • GLTFPbrPass: same as above but for the forward PBR pass. (Credits go to the glTF-WebGL-PBR github project for its fantastic PBR shader.)
    • TexturesAndBuffers: It loads the texture and buffers from disk and uploads into video memory it also uploads the skinning matrices buffer.
  • PostProc
    • PostProcCS/PostProcPS: that takes a shader and some inputs and draws a full screen quad (used by the effects below)
    • Bloom: combines the DownsamplePS and the Blur passes to create a Bloom effect. (All the credits go to Jorge Jimenez!)
    • BlurPS: takes a mip chain and blurs every mip element
    • DownSamplePS: takes a render target and generates a mip chain
    • SkyDome: loads a diffuse+LUT and a specular skydome cubemap. This is used for Image Based Lighting (IBL) and also for drawing a skydome.
    • SkydomeProc: draws a skydome procedurally using the Preetham Model. (Credits go to Simon Wallner and Martin Upitis.) TODO: Generate a diffuse cubemap for IBL.
    • ToneMapping: implements a number of tonemapping methods.
  • Shaders
    • all the shaders used by the above classes
  • Widgets
    • Axis: Renders an axis
    • WireFrameBox: Renders a box in wireframe
    • WireFrameSphere: Renders a sphere in wireframe
    • CheckerBoardFloor: as stated.

Note: All the code that may be common with DX12 is in src/common