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Cesium for Unreal – Bring the Real World to Unreal Engine

cesium.com

21–30 of 58 posts

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

#21
post #5

Way too expensive to be useful for anything.

Do they have pricing information easily available? All I'm seeing is that it looks like it's free until you want to use their data, and there's no obvious indication of what that costs.

Yup, basically that. Furthermore, you are unable to export the meshes themselves.

You are better off using Google Maps API if I'm being honest.

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

#22

Why do people strive to create such realistic environments when they're a much more realistic world outside? Although I understand the purpose from a fantastical-escapist perspective, I wonder if this sort of increasingly realistic escapism actually is reflective of how we're making the real world far worse than it ever was before and we're preparing an alternative world to escape into due to our destructive tendenci…

Imagine being able to experience a place that no longer exists. Close to my hometown there was a dam made that completely changed the landscape. But a museum reconstructed as best as they could the area so one can still see it as it was in VR and walk around.

That's one use.

There are many others, such as simulation of human behaviour in a digital twin (you can make sure experiment variables remain the same, difficult to do in the real world), collaboration and ease of access to archeological sites around the world, aiding architectural work, etc...

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

#23

Why do people strive to create such realistic environments when they're a much more realistic world outside? Although I understand the purpose from a fantastical-escapist perspective, I wonder if this sort of increasingly realistic escapism actually is reflective of how we're making the real world far worse than it ever was before and we're preparing an alternative world to escape into due to our destructive tendenci…

Have a handicapped daughter who I can't share a hike with since wheelchairs and rugged mountain trails don't go together well. Something like this would make sharing the experience quite a bit better - particularly with AR to allow us both to experience together (VR being a bit restrictive to just the person viewing and not the others there).

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

#24

Why do people strive to create such realistic environments when they're a much more realistic world outside? Although I understand the purpose from a fantastical-escapist perspective, I wonder if this sort of increasingly realistic escapism actually is reflective of how we're making the real world far worse than it ever was before and we're preparing an alternative world to escape into due to our destructive tendenci…

Unreal engine is used for much more than just games.

It’s used for architectural Visualization, film backgrounds, and industrial visualization among other things.

Surely you can imagine why having realistic settings is beneficial in those scenarios.

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

#25
post #10

Earlier quoted context omitted.

The vast majority of people never leave the area they are raised, much less their country, either due to economics or culture. There will always be a need for software like this as long as the world has these restrictions.

If people in such places had more immediate access to beautiful nature, then such a need wouldn't exist.

Son, you don’t need to see the desert or the ocean or the rainforest. You have a beautiful Midwest prairie right here at home.

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

#26
post #10

Earlier quoted context omitted.

The vast majority of people never leave the area they are raised, much less their country, either due to economics or culture. There will always be a need for software like this as long as the world has these restrictions.

If people in such places had more immediate access to beautiful nature, then such a need wouldn't exist.

Nature isn't the only, or even the most interesting thing to see out there. Even if you are that much into nature, you'll observe that it too is meaningfully different around the world.

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

#27

Earlier quoted context omitted.

> capturing and interpolating reality itself That's impressive

What does it really mean "interpolating reality itself"?

Yes, I was imprecise. I mean methods of splicing together Multi-Sphere images (MSI) like Google's Seurat Light Field tech. https://discussions.unity.com/t/google-s-seurat-surface-ligh...

"An MSI consists of a series of concentric spherical shells, each with an associated RGBA texture map. Like the MPI, the multi-sphere image is a volumetric scene representation. MSI shells exist in three dimensional space, so their content appears at the appropriate positions relative to the viewer, and motion parallax when rendering novel viewpoints works as expected. As with and MPI, the MSI layers should be more closely spaced near the viewer to avoid depth-related aliasing. The familiar inverse depth spacing used for MPI’s yields almost the correct depth sampling for MSI’s, assuming depth is measured radially from the rig center. The spacing we use is determined by the desired size of the interpolation volume and angular sampling density as described in Appendix A.

3.2.1 MSI Rendering. For efficient rendering, we represent each sphere in the MSI as a texture-mapped triangle mesh and we form the output image by projecting these meshes to the novel viewpoint, and then compositing them in back-to-front order. Specifically, given a ray r corresponding to a pixel in the output view, we first find all ray-mesh intersections along the ray. We denote Cr = {c1, . . . , c } and Ar = {1, . . . , } as the color and alpha components at each intersection, sorted by decreasing depth. We then compute the output color cr by repeatedly over-compositing these colors. [..] We parameterize the MSI texture maps using equi-angular sampling, although other parameterizations could be used if it were necessary to dedicate more samples to important parts of the scene."

https://storage.googleapis.com/immersive-lf-video-siggraph20...

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

#28
post #10

Earlier quoted context omitted.

The vast majority of people never leave the area they are raised, much less their country, either due to economics or culture. There will always be a need for software like this as long as the world has these restrictions.

If people in such places had more immediate access to beautiful nature, then such a need wouldn't exist.

I'm balancing my desire to live near nature with my desire to live near a grocery store, a library, and a rock climbing gym

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

#29
post #6

It was released around 4 years ago, when I worked at a civil engineering tech startup. We had a lot of Cesium 3D tiles of construction sites, captured by drones. It was quite easy to place them to Unreal engine. Is was fun to place random things in the map and mess around it.

Sounds useful for urban planning and architects.

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

#30

Why do people strive to create such realistic environments when they're a much more realistic world outside? Although I understand the purpose from a fantastical-escapist perspective, I wonder if this sort of increasingly realistic escapism actually is reflective of how we're making the real world far worse than it ever was before and we're preparing an alternative world to escape into due to our destructive tendenci…

Tourism itself is quite destructive both to local communities and to nature. There’s a reason tourist hotspots are increasingly anti-tourist, and national parks are now forced to ration out visits via a lottery. While I agree that a virtual environment is less impressive than the real thing, it’s not a difficult argument to make that it is actually much better for the world to have digital alternatives.
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