I looked at optimization and have a question

[Valinakova]

Would rewriting to a lower level language speed up performance substantially? For example, would the frame rates increase substantially? Would things load much faster? Or would the benefits be more modest.

rewrite core parts in C#? (as parallel branch?)
rewrite core parts as GDNative module with C or C++? (as parallel branch?)

[Hoimar]

There are two possible performance bottlenecks.

1. Graphics (rendering): Would not benefit from a lower level language, this is bottlenecked by your GPU. On my Radeon RX 580 Godot is able to render hundreds of frames per second.
2. CPU (application logic, terrain generation): Terrain generation in GDScript is a bottleneck, but does not impact performance of the game as it is multi-threaded. But terrain generation would definitely get a speed boost from a lower level/faster language. I'm not sure which is more suited, C, C++ or C#. The latter one would be slower than the former two though.

My guess is that it's your GPU.

• can you play around with atmosphere on/off, planet resolution high/low and report back?
• can you check out the dev branch of this repository? It has a less expensive atmosphere shader thanks to @creative-brain's help.

[Valinakova]

I see...

On an earlier thread, I mentioned that it sometimes takes sometimes 20 seconds to load a terrain with properly formed detail and this was my experience in game. For you, I believed you said about 2 seconds. So judging by what you are saying, it seems a lower language have an impact on this to substantial degree wouldn't it. So maybe instead of 20 seconds and 2 seconds, maybe it would be 4 seconds and 0.5 seconds?