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Modern toy DirectX 12 renderer

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- - BigBlueTermPlusNerdFontMono-Regular.ttf
  - GohuFont14NerdFontMono-Regular.ttf
  - Roboto-Regular.ttf
- dxcompiler.dll
- dxil.dll
- nvtt.dll
- nvtt30205.dll
- WinPixEventRuntime.dll
- D3D12Core.dll
- D3D12Core.pdb
- d3d12SDKLayers.dll
- d3d12SDKLayers.pdb
- d3dconfig.exe
- d3dconfig.pdb
- - d3d12.h
  - d3d12.idl
  - d3d12compatibility.h
  - d3d12compatibility.idl
  - d3d12sdklayers.h
  - d3d12sdklayers.idl
  - d3d12shader.h
  - D3D12TokenizedProgramFormat.hpp
  - d3d12video.h
  - d3d12video.idl
  - d3dcommon.h
  - d3dcommon.idl
  - dxgiformat.h
  - dxgiformat.idl
- - cgltf.c
  - cgltf.h
  - LICENSE
- - D3D12MemAlloc.cpp
  - D3D12MemAlloc.h
  - LICENSE
- - d3dx12.h
- - common.hpp
  - exponential.hpp
  - ext.hpp
  - fwd.hpp
  - geometric.hpp
  - glm.cppm
  - glm.hpp
  - integer.hpp
  - LICENSE
  - mat2x2.hpp
  - mat2x3.hpp
  - mat2x4.hpp
  - mat3x2.hpp
  - mat3x3.hpp
  - mat3x4.hpp
  - mat4x2.hpp
  - mat4x3.hpp
  - mat4x4.hpp
  - matrix.hpp
  - packing.hpp
  - trigonometric.hpp
  - vec2.hpp
  - vec3.hpp
  - vec4.hpp
  - vector_relational.hpp
- - imconfig.h
  - imgui.cpp
  - imgui.h
  - imgui_demo.cpp
  - imgui_draw.cpp
  - imgui_impl_dx12.cpp
  - imgui_impl_dx12.h
  - imgui_impl_win32.cpp
  - imgui_impl_win32.h
  - imgui_internal.h
  - imgui_tables.cpp
  - imgui_widgets.cpp
  - imstb_rectpack.h
  - imstb_textedit.h
  - imstb_truetype.h
  - LICENSE
- - GraphEditor.cpp
  - GraphEditor.h
  - ImCurveEdit.cpp
  - ImCurveEdit.h
  - ImGradient.cpp
  - ImGradient.h
  - ImGuizmo.cpp
  - ImGuizmo.h
  - ImSequencer.cpp
  - ImSequencer.h
  - ImZoomSlider.h
  - LICENSE
- - allocator.cpp
  - clusterizer.cpp
  - indexcodec.cpp
  - indexgenerator.cpp
  - LICENSE
  - meshoptimizer.h
  - overdrawanalyzer.cpp
  - overdrawoptimizer.cpp
  - quantization.cpp
  - simplifier.cpp
  - spatialorder.cpp
  - stripifier.cpp
  - vcacheanalyzer.cpp
  - vcacheoptimizer.cpp
  - vertexcodec.cpp
  - vertexfilter.cpp
  - vfetchanalyzer.cpp
  - vfetchoptimizer.cpp
- - json.hpp
  - json_fwd.hpp
  - LICENSE
- - LICENSE
- - LICENSE
  - optick.config.h
  - optick.h
  - optick_capi.cpp
  - optick_capi.h
  - optick_common.h
  - optick_core.cpp
  - optick_core.freebsd.h
  - optick_core.h
  - optick_core.linux.h
  - optick_core.macos.h
  - optick_core.platform.h
  - optick_core.win.h
  - optick_gpu.cpp
  - optick_gpu.d3d12.cpp
  - optick_gpu.h
  - optick_memory.h
  - optick_message.cpp
  - optick_message.h
  - optick_miniz.cpp
  - optick_miniz.h
  - optick_serialization.cpp
  - optick_serialization.h
  - optick_server.cpp
  - optick_server.h
- - LICENSE
  - stb.cpp
  - stb_image.h
  - stb_image_write.h
- xmake.lua
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  - Screenshot Wed Sep 25 13_43_01 2024.png
  - Screenshot Wed Sep 25 13_44_18 2024.png
- Bloom.png
- Editor.png
- RTShadows.png
- - HistogramAverageCompute.hlsl
  - LuminanceHistogramCompute.hlsl
- - CompositeCompute.hlsl
  - DownsampleCompute.hlsl
  - UpsampleCompute.hlsl
- - BRDFCompute.hlsl
- - ChromaticAberrationCompute.hlsl
- - ColorCorrectionCompute.hlsl
- - Colors.hlsl
  - Compute.hlsl
  - Lights.hlsl
  - Math.hlsl
  - Mesh.hlsl
  - PBR.hlsl
- - AABBRendererFrag.hlsl
  - AABBRendererVert.hlsl
  - LineRendererFrag.hlsl
  - LineRendererVert.hlsl
  - MotionVisualizerCompute.hlsl
- - EnvMapForwardFrag.hlsl
  - EnvMapForwardVert.hlsl
- - EquiMapCompute.hlsl
- - FilmGrainCompute.hlsl
- - ZPrepassAmplification.hlsl
  - ZPrepassFrag.hlsl
  - ZPrepassMesh.hlsl
- - QuadVert.hlsl
- - IrradianceCompute.hlsl
- - GenerateCompute.hlsl
- - MotionBlurCompute.hlsl
- - PrefilterCompute.hlsl
- - ShadowFrag.hlsl
  - ShadowVert.hlsl
- - SSAOBoxBlurCompute.hlsl
  - SSAOCompute.hlsl
- - TAACompute.hlsl
- - TriangleFrag.hlsl
  - TriangleMesh.hlsl
- - TonemappingCompute.hlsl
- - bitmap.cpp
  - bitmap.hpp
  - camera.cpp
  - camera.hpp
  - file_system.cpp
  - file_system.hpp
  - file_watch.cpp
  - file_watch.hpp
  - log.cpp
  - log.hpp
  - model.cpp
  - model.hpp
  - shader_bytecode.cpp
  - shader_bytecode.hpp
  - shader_loader.cpp
  - shader_loader.hpp
  - texture_compressor.cpp
  - texture_compressor.hpp
  - texture_file.cpp
  - texture_file.hpp
  - timer.cpp
  - timer.hpp
  - transform.cpp
  - transform.hpp
  - util.cpp
  - util.hpp
  - window.cpp
  - window.hpp
- - hot_reloadable_pipeline.cpp
  - hot_reloadable_pipeline.hpp
  - lights.hpp
  - renderer.cpp
  - renderer.hpp
  - scene.cpp
  - scene.hpp
- - allocator.cpp
  - allocator.hpp
  - buffer.cpp
  - buffer.hpp
  - command_buffer.cpp
  - command_buffer.hpp
  - command_queue.cpp
  - command_queue.hpp
  - compute_pipeline.cpp
  - compute_pipeline.hpp
  - cube_map.cpp
  - cube_map.hpp
  - descriptor_heap.cpp
  - descriptor_heap.hpp
  - device.cpp
  - device.hpp
  - fence.cpp
  - fence.hpp
  - graphics_pipeline.cpp
  - graphics_pipeline.hpp
  - mesh_pipeline.cpp
  - mesh_pipeline.hpp
  - render_context.cpp
  - render_context.hpp
  - root_signature.cpp
  - root_signature.hpp
  - sampler.cpp
  - sampler.hpp
  - swap_chain.cpp
  - swap_chain.hpp
  - texture.cpp
  - texture.hpp
  - uploader.cpp
  - uploader.hpp
- app.cpp
- app.hpp
- main.cpp
.gitignore
LICENSE
README.md
xmake.lua

// repository documentation

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# Oni : a DirectX 12 renderer written in C++

Oni is a modern graphics engine written in C++ with the DirectX 12 API. Its goal is to showcase the latest advancements in real-time rendering.
Oni makes heavy use of compute shaders to accelerate the rendering pipeline -- everything that isn't a draw call is done through compute.

## DISCLAIMER

This is an experimental renderer as I am currently learning graphics programming. Please take this into consideration when reading the code for this renderer.

## Requirements

- [xmake](https://xmake.io/#/)
- Windows SDK Latest
- Visual Studio 2022 + ATL Toolkit
- HLSL Shader Model 6.6
- GPU with, ideally, the following features:
    - DXR
    - Mesh shaders
    - Work graphs

## Building

- xmake
- xmake f --mode={debug/release}
- Copy the contents of the bin folder in build/windows/x64/{debug/release}/
- Copy the D3D12 folder in build/windows/x64/{debug/release}/
- xmake run

## Screenshots

### Sponza Scene
![](https://raw.githubusercontent.com/AmelieHeinrich/Oni/master/screenshots/engine/Screenshot%20Fri%20Sep%2027%2022_56_42%202024.png)

### Editor showing meshlets and raytraced shadows output
![](https://raw.githubusercontent.com/AmelieHeinrich/Oni/master/screenshots/Editor.png)

### Bistro scene
![](https://raw.githubusercontent.com/AmelieHeinrich/Oni/master/screenshots/RTShadows.png)

### Bloom
![](https://raw.githubusercontent.com/AmelieHeinrich/Oni/master/screenshots/Bloom.png)

## Renderer features (techniques)

- Deferred rendering
- Shadow mapping (directional)
- HDR rendering
- Color grading
- TAA (Temporal Anti-Aliasing)
- Film Grain
- Bloom (Compute Downsample/Upsample)
- Debug renderer (lines, motion vector visualizer)
- PBR + metallic material workflow
- Emissive materials
- Point, directional lights
- Screen Space Ambient Occlusion (EXPERIMENTAL)
- Fully raytraced shadows with DXR

## Renderer features (GPU)
- Hardware accelerated mesh shaders & amplification shaders
- Meshlet rendering & culling
- Bindless resources via SM6.6
- Hardware accelerated raytracing
- In-engine BC7 texture compressor using custom texture format
- Mipmaps

## Other features
- UI powered by ImGui
- In-engine screenshot system
- Shader hot reloading and caching

## WIP (GPU Driven and latest GPU tech)
- Meshlet cone culling
- Indirect Buffers

## WIP (Shading and Math)

- Clustered forward

## Dependencies

- [D3D12MA](https://gpuopen.com/d3d12-memory-allocator/)
- [glm](https://github.com/g-truc/glm)
- [ImGui](https://github.com/ocornut/ImGui)
- [ImGuizmo](https://github.com/CedricGuillemet/ImGuizmo)
- [nvtt](https://github.com/castano/nvidia-texture-tools)
- [optick](https://github.com/bombomby/optick)
- [stb](https://github.com/nothings/stb)
- [Agility SDK](https://devblogs.microsoft.com/directx/directx12agility/)
- [cgltf](https://github.com/jkuhlmann/cgltf)
- [meshopt](https://github.com/zeux/meshoptimizer)

Oni

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