Gas Giant Forge comes with a number of options to balance quality and performance.
Render Resolution
The biggest optimization is selecting the rendering resolution of the gas giants.
1
Find the SgtVolumeManager component in your scene
This will usually be in a root GameObject in your scene, or a child of the Demo GameObject if you're using one of the demo scenes as a base.
2
Adjust the Downscale setting
A setting of 1 means full resolution.
A setting of 2 means half width/height or ¼ the pixels and therefore 4x performance.
A setting of 3 means third width/height or ⅑ the pixels and therefore 9x performance.
etc.
Keep in mind higher Downscale values will change the visual quality of the gas giants, for example:
Downscale = 2
Downscale = 4
Downscale = 8
Cloud Detail
Another optimization is the ray marching density of the clouds.
1
Find the SgtCloud component in your scene
This will be in a child GameObject of your planet.
2
Adjust the NearDetail and FarDetail setting
The default setting is 0.07 and 0.0 respectively, but some example scenes use higher values.
Lower values lead to better performance.
If you set Detail too low, then you will end up with a grainy/noisy sky, so carefully test any changes.
Fluid Simulation Initial Texture Resolution
If you make a fluid simulation for a gas giant, you can Bake it into an InitialTexture so that it instantly starts in a stable state.
However, this texture takes up space and therefore increases your build size.
If this is an issue, then you can decrease the resolution and/or add compression to this texture. To do this, simply go to your InitialTexture's texture import settings, and change the MaxSize or Compression settings.
Changing the resolution or compression too much may change the way the gas giant looks when your game starts, so please verify that the change in initial quality is acceptable.
