D and C++ renderer side by side demonstration

[IGotD-]

On Saturday, 7 August 2021 at 03:15:30 UTC, Ki Rill wrote:
> Here is a youtube 
> [link](https://www.youtube.com/watch?v=7nWXbmLsIRI).
>
> I was watching Timur Gafarov’s videos on Dagon Engine and 
> stumbled upon a video that demonstrated a C++ Renderer Engine 
> using the same Sponza scene. I thought it would be a great idea 
> to show them side by side.
>
> This is not a “X vs Y” video! It just demonstrates the 
> capabilities of D and C++ side by side.

You can do rendering engines in D, nice example. Next questions 
would be

1. Is GC being used or is custom memory management being used?
2. How much is D and how much are library calls (to OpenGl, 
DirectX whatever which presumably are done in C++)?