Earth curvature

[draconus]

Is curvature finally rendered or is it still flat?

Edited January 7, 2020 by draconus

[Northstar98]

Is curvature finally rendered or is it still flat?

 

This is something that I'm actually hoping out for, especially with the map having massive amounts of water. Would be cool to see ship masts poking out of the horizon.

Edited January 6, 2020 by Northstar98

[Mike Busutil]

Look like it's there in the default map... Why wouldn't it be in the Marianas?

 

[draconus]

Look like it's there in the default map... Why wouldn't it be in the Marianas?

It's only gfx effect. The sea is flat.

[QuiGon]

It's only gfx effect. The sea is flat.

Then why can't ships lock you up if you fly below the horizon?

[draconus]

Then why can't ships lock you up if you fly below the horizon?

because the effects of curvature are modeled for radar los as well as nav and other calculations, just no curvature in rendering of sea and land

[QuiGon]

because the effects of curvature are modeled for radar los as well as nav and other calculations, just no curvature in rendering of sea and land

So you are saying the effects of curvature are modeled as well as gfx effects for visual curvature? Then what's the problem?

[draconus]

So you are saying the effects of curvature are modeled as well as gfx effects for visual curvature? Then what's the problem?

Where did you read that there is any problem? I just asked if the new map has taken a step up the technology ladder and made the map mesh curved (not horizon).

btw: the thread started in Marianas subforum and then was moved.

[QuiGon]

Where did you read that there is any problem? I just asked if the new map has taken a step up the technology ladder and made the map mesh curved (not horizon).

btw: the thread started in Marianas subforum and then was moved.

Alright then :)

[Pikey]

SAMs and radar wont pick up up at any range below 40ft, but they will pick you up above it at much greater ranges than the earths curvature should allow, so it's hardly "modelled". It's completely gamed, please test it as well as I.

I'm not sure we can jump to conclusions about the new map yet, so until proven otherwise: Maps are flat, coords are slightly manipulated to fit and radar has no issues to worry about with earth curvature, it's just filtered to not include anything around the 40ft mark. All that testing was done on flat sea around Viggen launch time and has not changed since ships would happily shoot you in a very binary fashion depending on your altitude in exact feet.

 

Be careful on what conclusions you draw from data.

 

edit: this is a useful tool for understanding how much DCS radars can see over the horizon. Very simple to test it on a ship with a known radar mast height.

https://dizzib.github.io/earth/curve-calc/?d0=60&h0=30&unit=metric

as you can see from the tool, there is magic going on in DCS ;)

Edited January 7, 2020 by Pikey
added tool

[AeriaGloria]

You should test with Chinese asset pack ships like type 52. They have locked me down to 10ft

[Northstar98]

It also makes sense if they're hope to do a world map at some stage in the game, it would be maybe a bit short-sighted if new maps didn't have the curvature in, because if one gets done (big if) eventually, they'd probably have to change the geometry of the existing maps to fit them in (well unless you make the whole planet flat :ermm:). Having new maps flat only creates more work in the future, not to mention being unrealistic and having to come up with workarounds for sensors.

[Swift.]

Afaik, the existing mapping engine in DCS doesnt support curvature. This is why there is such a problem with making a world map; they first have to redo the way maps are done in DCS.

[Northstar98]

Afaik, the existing mapping engine in DCS doesnt support curvature. This is why there is such a problem with making a world map; they first have to redo the way maps are done in DCS.

 

AFAIK they're working on a new terrain engine, there's a mention of latest map technologies in the newsletter - of course no details, but if a world map is in the plans long term I'd imagine that maybe some of these new technologies might include supporting a world map.

 

Not sure what would need to be changed apart from maybe a change to a polar coordinate frame for the weight vector (i.e in a radially inward direction rather than being parallel across the whole map), that I imagine shouldn't be too much of a hassle.

[Swift.]

I would imagine also that water and oceans will be a tough challenge on a curved map

[Vinny002]

I am very much going for the world map in DCS world!!

 

Cheers,

Vincent

[Andrew8604]

Can there be some anomalous propagation bending of the radar beam around the surface of the Earth?

[Northstar98]

Like ground wave propagation?

 

Don't think so, our RADARs in DCS are too high frequency/too short wavelength for it AFAIK.

[Oceandar]

I'm not sure if its still relevan. Probably the man himself would like to say something about this

 

https://forums.eagle.ru/showthread.php?p=3422742