Dual Rasterizer

A software (CPU) and hardware (GPU) rasterizer built with C++ and DirectX 11. You can switch between both rasterizers at runtime and change various render settings on the fly.

Table of Contents

• Screenshots
• Features
  • Software Rasterizer
  • Hardware Rasterizer
  • Shared
• Controls
• Building

Screenshots

Software Rasterizer

Hardware Rasterizer

Debug Views

Features

Software Rasterizer

• Full rasterization pipeline on the CPU (vertex transformation, triangle rasterization, depth testing, pixel shading)
• Lambert diffuse + Phong specular shading (BRDF)
• Normal mapping
• Multiple shading/debug modes: observed area, diffuse only, specular only, combined
• Depth buffer visualization
• Bounding box visualization

Hardware Rasterizer

• DirectX 11 rendering pipeline
• HLSL pixel shading (same lighting model as software)
• Texture sampling modes: point, linear, anisotropic

Shared

• Toggle between software and hardware rasterizer (F1)
• Cull mode cycling: back, front, none
• Camera with mouse look and keyboard movement
• OBJ mesh loading with diffuse, normal, specular and glossiness textures
• Custom math library (vectors, matrices)
• Fire mesh with partial coverage (alpha blending)

Controls

Camera
WASD / Arrows: Move
LShift: Sprint
RMB: Rotate
LMB: Rotate horizontally, move forward/backward
RMB + LMB: Move up/down

Settings
F1: Toggle software/hardware rasterizer
F2: Toggle rotation
F3: Toggle fire mesh
F4: Cycle sampler state (hardware only)
F5: Cycle shading mode (software only)
F6: Toggle normal mapping (software only)
F7: Toggle depth buffer display (software only)
F8: Toggle bounding boxes (software only)
F9: Cycle cull mode
F10: Toggle uniform clear color
F11: Toggle FPS display

Building

The project uses CMake.

cmake -S . -B build
cmake --build build

Requires the DirectX 11 SDK (Windows).