3D Software Based Renderer

3D Software Based Renderer

Language: C++

API: GDI

Features:

Import multiple OBJ models

Wireframe rendering

Render using one constant color

Idle rotation

BackFace culling

Double buffering

Per-vertex shading using the Lambertian illumination model

Specularity for the illumination model

Interpolation using barycentric coordinates

Per-polygon shading using the Lambertian illumination model

Description:

The “Software Renderer” is a demo application which implements concepts like a graphics pipeline, double buffering, hidden-surface removal (back-face culling) and lighting. The graphics pipeline contains vertex processing, triangle setup, occlusion culling, interpolation and rasterization. It is slightly modified for each of the demo’s display modes in order to get a slightly better performance but it contains the same steps.

Double buffering is done manually using bitmaps, which gives the programmer full control. The lighting implementation uses a reflectance model which contains ambient light, one diffuse light and one specular light.

Brief guide:

Demo: 3D Software Based Renderer