Adria

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Modern cross-platform graphics engine written in C++

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Modern cross-platform graphics engine written in C++.

## Rendering Backends

| Backend | Platforms | Status |
|---|---|---|
| Direct3D12 | Windows | Stable |
| Metal | macOS | Stable |
| Vulkan | Windows/macOS | Experimental |

## Screenshots

### DDGI

| Disabled |  Enabled |
|---|---|
|  ![](https://raw.githubusercontent.com/mateeeeeee/Adria/master/Runtime/Screenshots/noddgi.png) | ![](https://raw.githubusercontent.com/mateeeeeee/Adria/master/Runtime/Screenshots/ddgi.png) |

| Probe Visualization |
|---|
|  ![](https://raw.githubusercontent.com/mateeeeeee/Adria/master/Runtime/Screenshots/ddgi_probes1.png) |

### Volumetric Clouds
![](https://raw.githubusercontent.com/mateeeeeee/Adria/master/Runtime/Screenshots/clouds.png "Volumetric clouds")

### San Miguel
![](https://raw.githubusercontent.com/mateeeeeee/Adria/master/Runtime/Screenshots/sanmiguel.png "San Miguel") 
![](https://raw.githubusercontent.com/mateeeeeee/Adria/master/Runtime/Screenshots/sanmiguel2.png "San Miguel")

### Bistro
![](https://raw.githubusercontent.com/mateeeeeee/Adria/master/Runtime/Screenshots/bistro_rain.png "Rainy Bistro")

### New Sponza
![](https://raw.githubusercontent.com/mateeeeeee/Adria/master/Runtime/Screenshots/newsponza.png "New Sponza")

### Sun Temple
![](https://raw.githubusercontent.com/mateeeeeee/Adria/master/Runtime/Screenshots/suntemple.png "Sun Temple")

### Ocean
![](https://raw.githubusercontent.com/mateeeeeee/Adria/master/Runtime/Screenshots/ocean.png "Ocean")

### Path Tracer
![](https://raw.githubusercontent.com/mateeeeeee/Adria/master/Runtime/Screenshots/pathtracing1.png "Path traced Sponza") 
![](https://raw.githubusercontent.com/mateeeeeee/Adria/master/Runtime/Screenshots/arcade.png "Path traced Arcade")

### Ray Tracing Features

| Cascaded Shadow Maps |  Hard Ray Traced Shadows |
|---|---|
|  ![](https://raw.githubusercontent.com/mateeeeeee/Adria/master/Runtime/Screenshots/cascades.png) | ![](https://raw.githubusercontent.com/mateeeeeee/Adria/master/Runtime/Screenshots/raytraced.png) |

| Screen Space Reflections |  Ray Traced Reflections |
|---|---|
|  ![](https://raw.githubusercontent.com/mateeeeeee/Adria/master/Runtime/Screenshots/ssr.png) | ![](https://raw.githubusercontent.com/mateeeeeee/Adria/master/Runtime/Screenshots/rtr.png) |

| SSAO | RTAO |
|---|---|
|  ![](https://raw.githubusercontent.com/mateeeeeee/Adria/master/Runtime/Screenshots/ssao.png) | ![](https://raw.githubusercontent.com/mateeeeeee/Adria/master/Runtime/Screenshots/rtao.png) |

### Triangle Overdraw
![](https://raw.githubusercontent.com/mateeeeeee/Adria/master/Runtime/Screenshots/bistrooverdraw.png "Bistro Triangle Overdraw")

### Editor
![](https://raw.githubusercontent.com/mateeeeeee/Adria/master/Runtime/Screenshots/editor2.png "Editor")

## Features

* Render graph
    - Automatic barriers and resource state tracking
    - Transient resource pooling and reuse
    - Automatic bind-flag and initial-state deduction
    - Async compute scheduling

* GPU-driven renderer
    - GPU frustum culling and two-phase GPU occlusion culling

* Global illumination and ray tracing
    - DDGI, ReSTIR DI, ReSTIR GI (wip)
    - Ray-traced shadows, reflections, and ambient occlusion 
    - Reference path tracer

* Deferred rendering pipeline
    - Tiled and clustered lighting
    - PCF shadow maps for directional, spot, and point lights
    - Cascaded shadow maps for directional lights
    - SSR, SSAO, HBAO
    - Volumetric raymarching and fog volumes

* Atmosphere and environment rendering
    - Volumetric clouds
    - Hosek-Wilkie sky
    - FFT ocean
    - Rain

* Upscaling and image reconstruction
    - DLSS 3.5, XeSS2, FSR2, FSR3, MetalFX

* Post-processing and image effects
    - TAA, FXAA, bloom, automatic exposure
    - Variable rate shading, CAS, depth of field
    - Film grain, vignette, chromatic aberration, lens distortion, CRT filter
    - Texture-based and procedural lens flare

* Editor and visualization tools
    - Entity picking with selection silhouettes and transform gizmos
    - Debug renderer
    - Debug outputs: diffuse, normal, depth, roughness, metallic, emissive, AO, GI, custom, shading extension, mipmap view, triangle overdraw, material ID, meshlet ID, motion vectors

* Tooling and debugging
    - Shader hot reload
    - GPU printf and GPU assert
    - Render graph Graphviz visualization
    - PIX and RenderDoc programmatic APIs
    - Nsight Aftermath SDK, Nsight Perf SDK
    - Custom profiler and Tracy integration

Adria

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