DirectX 12 Rendering Project

This repository contains a custom DirectX 12 rendering engine developed for a university course (DV2551 - 3D Programming III). The project implements screen-space raymarched volumetric fog using both a traditional Pixel Shader approach and a Compute Shader approach in order to compare performance between the two.

Prerequisites

• Windows 10/11
• CMake
• DirectX 12 compatible GPU

Build Instructions

• Clone or download the repository and navigate to the root directory.
• Generate build files:

cmake -B build

• Compile the project:

cmake --build build --config Release 

• Run the generated executable located in the build/Release directory.

Controls and Hotkeys

W - Move camera forward
A - Move camera left
S - Move camera backward
D - Move camera right
Space - Move camera up
Left Shift - Move camera down

F - Toggle between Pixel Shader and Compute Shader fog
G - Toggle volumetric fog on/off

1 - Set raymarching steps to 2
2 - Set raymarching steps to 4
3 - Set raymarching steps to 8
4 - Set raymarching steps to 16
5 - Set raymarching steps to 32
6 - Set raymarching steps to 64
7 - Set raymarching steps to 128

ESC - Close the application

Project Structure

• /src contains all C++ headers and source files.
• /src/Renderer.cpp contains most of the rendering code.
• /src/shaders contains all HLSL shaders.
• /src/shaders/VolumetricFogPS.ps.hlsl contains pixel shader volumetric fog implementation.
• /src/shaders/VolumetricFogCS.cs.hlsl contains compute shader volumetric fog implementation.
• /D3D12 contains the DirectX 12 Agility SDK includes and binaries.