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Making Minecraft Spherical

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Re: Making Minecraft Spherical

#92
post #9

Wonderful write-up of attempting to tackle this problem. I believe there must be a significant number of people who have played both Minecraft and Super Mario Galaxy, and had something like this sequence of thoughts - although you have followed it all the way to an actual demonstration, and written up your thoughts along the way so clearly. The vertical distortion is the biggest issue IMO, there are a few reasonably…

There are shader packs for actual Minecraft that make the world spherical, it’s a nice addition

Re: Making Minecraft Spherical

#94
post #84

Earlier quoted context omitted.

If you REALLY want to aim for realism, gravity should depend on all quads on the planet. So, if you were to build a huge floating island, the gravity between it and the planet would be less than the usual

If you really truly wanted to aim for realism, digging to the core would require a huge budget and an international coalition that would get bogged down in politics and mismanagement and it would never happen.

30 year pension plan.

Re: Making Minecraft Spherical

#95

Earlier quoted context omitted.

Not allowing excavation to the core solves weird gravity issue as well. Astroneer had super weird gravity at their planet core. You can get stuck oscillating there.

If you really wanted to go for realism, there would be NO GRAVITY at the core. :P As you dig down you would get lighter and lighter on your feet. Any mass you are below (within the sphere of Earth) will exert a gravitational pull in one direction, while the mass above you (also within the Earth) will exert an equal and opposite pull.

If earth was just full of water.... as you swam deeper and deeper there would be more and more pressure upon you. Would there be a point where that pressure would start to lessen as the water is pulled in all directions?

Re: Making Minecraft Spherical

#96

Earlier quoted context omitted.

If you really wanted to go for realism, there would be NO GRAVITY at the core. :P As you dig down you would get lighter and lighter on your feet. Any mass you are below (within the sphere of Earth) will exert a gravitational pull in one direction, while the mass above you (also within the Earth) will exert an equal and opposite pull.

If earth was just full of water.... as you swam deeper and deeper there would be more and more pressure upon you. Would there be a point where that pressure would start to lessen as the water is pulled in all directions?

> pressure would start to lessen as the water is pulled in all directions?

the pressure would never lessen, just increase slower.

The gravity at the center is zero, but the mass above you is not exerting just gravity force (which gets cancelled out by the opposite side), but also pressure (from the weight of it falling down).

This means the water pressure would steadily climb, but at a slower rate as you move nearer to the center, and will be at maximum at the very center.

Re: Making Minecraft Spherical

#99

Earlier quoted context omitted.

If you really wanted to go for realism, there would be NO GRAVITY at the core. :P As you dig down you would get lighter and lighter on your feet. Any mass you are below (within the sphere of Earth) will exert a gravitational pull in one direction, while the mass above you (also within the Earth) will exert an equal and opposite pull.

If earth was just full of water.... as you swam deeper and deeper there would be more and more pressure upon you. Would there be a point where that pressure would start to lessen as the water is pulled in all directions?

Awesome question!
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