rsmgpt is an attempt to educate myself about both GPU path tracing as well as D3D12 in one go. Progress will be documented on my blog: http://mkrohitshrinath.blogspot.com/

Pre-requisites:

1. Windows 10: rsmgpt is written using D3D12 which is currently supported only on Windows 10.

2. Visual Studio 2015: The rsmgpt solution has been built using Visual Studio 2015. The free community edition can be downloaded from here: https://www.visualstudio.com/products/visual-studio-community-vs

3. DirectXTK: DirectXTK is a toolkit from Microsoft which contains helper classes to assist in writing D3D apps. Perform the following steps to setup DirectXTK for use with rsmgpt: a) Pull down DirectXTK from its Github repository: https://github.com/Microsoft/DirectXTK b) Build DirectXTK_Desktop_2015.sln without changing the output paths. c) Update the environment variable 'DXTK_ROOT' in your local copy of rsmgpt's startup script (rsmgpt.cmd) to point to the root directory of DirectXTK.

4. Assimp: Assimp is a model-loading library which supports a wide variety of formats and an easy-to-use API. Perform the following steps to setup Assimp for use with rsmgpt: a) Pull down Assimp from its Github repository: https://github.com/assimp/assimp b) Generate a MSVS 2015 project for Assimp using CMake. CMake is available for download here: https://cmake.org/download/ c) Change the x64 output path to the bin(Debug\Release) subfolder of the root directory. d) Once the dlls are built, copy them the binary folders of rsmgpt (<rsmgpt_root>\bin\x64(Debug\Release)). e) Update the environment variable 'ASSIMP_ROOT' in your local copy of rsmgpt's startup script (rsmgpt.cmd) to point to the root directory of Assimp.

Building and using DirectXTK:

1. Pull down rsmgpt from the Github repository: https://github.com/rskryptik61636/rsmgpt

2. Run rsmgpt.cmd after fulfilling all the pre-requisites and build the solution.

NOTE: The models described in my blog have not been provided in this repository. The spider model is bundled with the Assimp project. I will provide information on where the freely available models I'm using can be found as much as possible.