Change settings on the fly

[GoogleFrog]

Many settings need to be changeable with Spring.SetConfigInt. These changes should at least apply to the next game started with Spring.Reload. Ideally everything would be modifiable ingame but that is likely impossible. Here is a list of settings sorted by priority.

These settings can be changed while a game is running:

• Water
• AdvUnitShading
• AllowDeferredModelRendering
• AllowDeferredMapRendering
• LuaShaders
• Shadows
• MaxParticles
• UsePBO
• SmoothLines
• MaxSounds
• LoadingMT
• ShadowMapSize
• snd_volmusic
• snd_volmaster
• FSAALevel
• FSAA
• MiddleClickScrollSpeed
• ScrollWheelSpeed
• OverheadScrollSpeed
• BumpWaterTexSizeReflection
• BumpWaterReflection
• BumpWaterDepthBits
• BumpWaterBlurReflection
• BumpWaterAnisotropy
• WindowedEdgeMove
• UnitIconDist
• TeamNanoSpray
• DynamicSky
• AdvSky
• TreeRadius
• ShowClock
• ShowFPS
• snd_airAbsorption

These settings can be changed between games without restarting Spring

• Water
• AdvUnitShading
• AllowDeferredModelRendering
• AllowDeferredMapRendering
• LuaShaders
• Shadows
• MaxParticles
• UsePBO
• SmoothLines
• MaxSounds
• LoadingMT
• ShadowMapSize
• snd_volmusic
• snd_volmaster
• FSAALevel
• FSAA
• MiddleClickScrollSpeed
• ScrollWheelSpeed
• OverheadScrollSpeed
• BumpWaterTexSizeReflection
• BumpWaterReflection
• BumpWaterDepthBits
• BumpWaterBlurReflection
• BumpWaterAnisotropy
• WindowedEdgeMove
• UnitIconDist
• TeamNanoSpray
• DynamicSky
• AdvSky
• TreeRadius
• ShowClock
• ShowFPS
• snd_airAbsorption

[GoogleFrog]

I think we should include all the snd_ settings as well.

[gajop]

Some of these can (already) be changed via /commands. Does this decrease their priority?
PS: Would be nice if we had a Spring.SetConfigBool(ean) API as well.

[ashdnazg]

They should be ok too. (snd_*)

[ashdnazg]

Anyway, at first glance the only ones who don't update on reload are:
SmoothLines
ScrollWheelSpeed
FSAALevel

[ashdnazg]

ReflectiveWater is deprecated btw, and was changed to Water

[GoogleFrog]

Whether they can be changed by /commands is irrelevant to their priority because there are no text commands in LuaMenu. However I expect that this would make them easy to implement.

[GoogleFrog]

I forgot GrassDetail, GroundDecals and GroundDetail.

[ashdnazg]

grounddetail changes immediately IIRC and the other two on reload

[ashdnazg]

it seems changing FSAA on the fly is out of the question.

[gajop]

@ashdnazg can you provide reference why it's not possible?

[ashdnazg]

https://github.com/spurious/SDL-mirror/blob/e1e235cb9012f8edc705d2cb61df9e8a5b0a4047/src/video/windows/SDL_windowsopengl.c#L535