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Cesium for Unreal – Bring the Real World to Unreal Engine

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Re: Cesium for Unreal – Bring the Real World to Unreal Engine

#51

Post by phatfish »

kevingadd wrote: post #45
jayd16 wrote: post #42

Earlier quoted context omitted.

There's no alternative. Its just rage/click bait. The shader issue is cross engine and the solution is the same across engine...warm up the shaders before gameplay.

Valve has a fun solution for the Steam Deck, which is shipping pre-compiled shaders for your device across the wire that get installed along with the game. I'm curious to see whether that will become more widespread eventually.

I assume other Steam Deck like hardware which is a fixed target could support it, apparently the Legion Go S is going to ship with Steam OS rather than Windows.

On PC hardware it seems unlikely, more chance of Epic fixing their engine.

Re: Cesium for Unreal – Bring the Real World to Unreal Engine

#52

Post by jayd16 »

kevingadd wrote: post #45
jayd16 wrote: post #42

Earlier quoted context omitted.

There's no alternative. Its just rage/click bait. The shader issue is cross engine and the solution is the same across engine...warm up the shaders before gameplay.

Valve has a fun solution for the Steam Deck, which is shipping pre-compiled shaders for your device across the wire that get installed along with the game. I'm curious to see whether that will become more widespread eventually.

That's still pre-warming. Sometimes you can target hardware and do it at dev time but its the essentially the same process.

Re: Cesium for Unreal – Bring the Real World to Unreal Engine

#53

Post by thaumasiotes »

kedean wrote: post #47
thaumasiotes wrote: post #31

Earlier quoted context omitted.

Apropos of nothing, it seems weird to me that we observe a vocabulary distinction in identical phenomena based on where those phenomena are located. A prairie is called a steppe if it's in Asia. A steppe is called a prairie if it's in America. A hurricane is a typhoon, except it's striking the west coast of the Atlantic instead of the west coast of the Pacific. None of these make any difference to what the object is…

Your distinction around hurricane vs typhoon is off. Typhoon is the name in the pacific west of 180 degrees longitude (in the jurisdiction of the JMA), hurricane is the name in the pacific east of 180 degrees, or in the atlantic (jurisdiction of the NHC). In the south pacific and indian ocean, they are called cyclones instead, so there's really three names. The difference in naming is simply because the organization…

> In the south pacific and indian ocean, they are called cyclones instead, so there's really three names.

This is not true of American English, where "cyclone" unambiguously refers to a tornado.

Re: Cesium for Unreal – Bring the Real World to Unreal Engine

#54

Post by HellDunkel »

jayd16 wrote: post #43
HellDunkel wrote: post #34

Earlier quoted context omitted.

These remarks are hilarious. Nanite was never supposed to be a silver bullet but a way to enable high density mesh streaming and high fidelity shadows and lighting when used with Lumen. Both techniques work incredibly well. The only valid criticism is games getting too expensive (to make) and frame generation can work against gameplay. But both are really up to game designers to use appropriately, not engine provider…

The only real argument I see is "Lumen is bad." It would be pretty hard to work in an alternative GI but Nanite and the upscalers are optional.

It is not- it is a tremenous relief. If Lumen doesnt fit your needs you can go back to light baking which of course nobody wants to.

Re: Cesium for Unreal – Bring the Real World to Unreal Engine

#55

Post by itishappy »

Gooblebrai wrote: post #18
dleeftink wrote: post #4

Earlier quoted context omitted.

> capturing and interpolating reality itself That's impressive

What does it really mean "interpolating reality itself"?

They use a camera array to capture more details, then solve for depth/angle and reproject.

Re: Cesium for Unreal – Bring the Real World to Unreal Engine

#56

Post by itishappy »

fsiefken wrote: post #3

That's amazing, I wonder how well Cesium rendered environments look in VR natively on the Quest3 and how photogrametry compares to for example the Light Fields experience wise https://store.steampowered.com/app/771310/Welcome_to_Light_F... Light Fields camera tech produces dynamic reflections due to capturing and interpolating reality itself, I wonder how well this can be simulated with Cesium Photogrammetry and the…

Lightfields are great, but adding the angular dependence makes them storage expensive, hence the extremely restricted movement from the demos. They're created using photogrametric techniques as well, so in theory I don't see why you can't just take more photos and solve for more angles (but this is very much a load bearing "just"). In practice storing a full BSDF per point is always going to impractical, but I believe that's pretty much exactly the problems that NeRFs have been created to address.

Re: Cesium for Unreal – Bring the Real World to Unreal Engine

#57

Post by kridsdale1 »

phatfish wrote: post #51
kevingadd wrote: post #45

Earlier quoted context omitted.

Valve has a fun solution for the Steam Deck, which is shipping pre-compiled shaders for your device across the wire that get installed along with the game. I'm curious to see whether that will become more widespread eventually.

I assume other Steam Deck like hardware which is a fixed target could support it, apparently the Legion Go S is going to ship with Steam OS rather than Windows. On PC hardware it seems unlikely, more chance of Epic fixing their engine.

Yeah the fixed hardware is key here. The PS5 doesn’t have to compile shaders at app launch time either.

Re: Cesium for Unreal – Bring the Real World to Unreal Engine

#58

Post by kedean »

thaumasiotes wrote: post #53
kedean wrote: post #47

Earlier quoted context omitted.

Your distinction around hurricane vs typhoon is off. Typhoon is the name in the pacific west of 180 degrees longitude (in the jurisdiction of the JMA), hurricane is the name in the pacific east of 180 degrees, or in the atlantic (jurisdiction of the NHC). In the south pacific and indian ocean, they are called cyclones instead, so there's really three names. The difference in naming is simply because the organization…

> In the south pacific and indian ocean, they are called cyclones instead, so there's really three names. This is not true of American English, where "cyclone" unambiguously refers to a tornado.

I'm going to disagree with you there. Anecdotally, I've lived in tornado alley my whole life and nobody has ever referred to a tornado as a cyclone in real-life conversation, although I'd know what they're referring to based on context clues.

Outside the heartland, the NHC categorizes many storms below the level of hurricane (64 knot sustained winds) as various kinds of cyclone (tropical cyclone, extratropical cyclone, potential tropical cyclone, post-tropical cyclone, alongside depressions).

In fact, in meteorology terms, a tornado is definitively different from a cyclone (a column of rotating area vs an area of area rotating around a low-pressure system). Hurricanes and typhoons are both kinds cyclones.

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