3D OBJ Renderer

Repository

When making this renderer, I set out to only include the bare miminum external code and resources needed in the pursuit of making it lightweight.
This made for a very interesting project, as I had to write my own renderer using raw openGL,
only including lightweight external libraries to generate a window and attach openGL context.

As part of making this as lightweight as possible, I use basic Phong lighting, and do not ever switch the Vertex Array Object, (which is a relatively expensive task computationally.)

Why OBJ? Link to heading

Some of my reasons can be found in a blog post of mine.
The OBJ specification is readily found online, and writing a parser for it is pretty easy.

Support? Link to heading

One common issue with OBJ files is that a lot of them don’t conform to the specification.
3D renderers and programs capable of rendering OBJ files handle this in various ways,
for example, the default Microsoft 3D viewer will attempt render OBJ files without vertex-normal information with assumed values, which results in models with odd, incorrect shading.
For my workflow, and the purposes that I would be using such a renderer for, it’s sufficient to just aim to support OBJ files generated by programs such as Blender, where you can be reasonably certain that they’ll follow the spec.