AMD DepthOfFieldFX

The DepthOfFieldFX library provides a GCN-optimized Compute Shader implementation of Depth of Field using the Fast Filter Spreading approach put forth by Todd Jerome Kosloff, Justin Hensley, and Brian A. Barsky in their 2009 paper – Fast Filter Spreading and its Applications.

The library implements depth of field using a Bartlett and Box filter. There is an option to run the Bartlett at quarter resolution for improved performance in some cases. The advantage of this approach is a fixed performance cost that is not dependent on kernel size. The library takes the scene Color Buffer and Circle of Confusion buffer as input and an Unordered Access View for the final results.

Prerequisites

• AMD Radeon™ GCN-based GPU (HD 7000 series or newer)
  • Or other DirectX® 11 compatible discrete GPU with Shader Model 5 support
• 64-bit Windows® 7 (SP1 with the Platform Update), Windows® 8.1, or Windows® 10
• Visual Studio® 2015 or Visual Studio® 2017

Getting started

• Visual Studio solutions for VS2015 and VS2017 can be found in the amd_depthoffieldfx_sample\build directory.
• There are also solutions for just the core library in the amd_depthoffieldfx\build directory.
• Additional documentation is available in the amd_depthoffieldfx\doc directory.

Premake

The Visual Studio solutions and projects in this repo were generated with Premake. If you need to regenerate the Visual Studio files, double-click on gpuopen_geometryfx_update_vs_files.bat in the premake directory.

For Visual Studio 2015 and 2017, this version of Premake adds the WindowsTargetPlatformVersion element to the project file to specify which version of the Windows SDK will be used. To change WindowsTargetPlatformVersion for Visual Studio 2015 and 2017, change the value for _AMD_WIN_SDK_VERSION in premake\amd_premake_util.lua and regenerate the Visual Studio files.

Third-Party Software

• DXUT is distributed under the terms of the MIT License. See framework\d3d11\dxut\MIT.txt.
• Premake is distributed under the terms of the BSD License. See premake\LICENSE.txt.

DXUT is only used by the sample, not the core library. Only first-party software (specifically amd_depthoffieldfx and amd_lib) is needed to build the DepthOfFieldFX library.

Attribution

• AMD, the AMD Arrow logo, Radeon, and combinations thereof are either registered trademarks or trademarks of Advanced Micro Devices, Inc. in the United States and/or other countries.
• Microsoft, DirectX, Visual Studio, and Windows are either registered trademarks or trademarks of Microsoft Corporation in the United States and/or other countries.