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DX12

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GLTF
GLTF
 
 
PostProc
PostProc
 
 
base
base
 
 
shaders
shaders
 
 
widgets
widgets
 
 
CMakeLists.txt
CMakeLists.txt
 
 
readme.md
readme.md
 
 
stdafx.cpp
stdafx.cpp
 
 
stdafx.h
stdafx.h
 
 

readme.md

The DX12 backend

Here lives all the DX12 specific code. It should be as similar as possible to the VK 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.)
    • GLTFMotionVectorPass: Generates a small gbuffer with depth, normals and motion vectors. This is needed for the TAA pass.
    • TexturesAndBuffers: It loads the texture and buffers from disk and uploads into video memory it also uploads the skinning matrices buffer.
  • PostProc
    • PostProcCS/PostProcPS: 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
    • BakeSkinning: Takes a vertex buffer and the skinning matrices and computes the skinned vertices into a UAV
    • DownSamplePS: Takes a render target and generates a mip chain
    • ShadowResolvePass: Takes an atlas of 4 shadowmaps and creates a shadow mask
    • Sharpen: Sharpens the render target, needed after applying TAA.
    • 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.
    • TAA: Applies TAA, needs motion vectors, depth and normals.
    • 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 VK is in src/common