3D Software Renderer

A simple 3D software renderer built in C++ from scratch without using OpenGL, DirectX or Vulkan. Only dependencies are for graphics output and image (texture) loading.

This project is heavily inspired from Tinyrenderer. I created this to get a deeper understanding of 3D Graphics and OpenGL pipeline along with solidifying my concepts of C++ programming.

Features

• 3D Software Rasterization pipeline
• Parallelized renderer (using OpenMP)
• Extendable vertex and fragment shaders using C++ virtual functions
• Tangent space normal texture mapping
• Backface culling
• Perspective correct interpolation in fragment shaders
• Hidden faces removal using Z-buffer
• Implementations of Flat, Gouraud, Phong and Normal map shaders.

Engine features

• SFML Backend for graphics output
• Camera movement around an axis
• Obj model parser
• Templated vector and matrix math library
• Texture loading (using stbimage)

Samples

Todo features

• Add Scene loader for loading multiple objects
• Camera control in every directions (currently it has only orbiting controls)
• PBR Shading
• Ambient Occlusion
• Shadows

References

• Tinyrenderer
• Scratchapixel 2.0