Camera is shaky when player coordinates are large about voxel-engine HOT 7 OPEN

hah wow, nice. cc @chrisdickinson

from voxel-engine.

It seems to be a rounding problem or something as you get farther from the origin. The camera starts moving in .25 steps instead of smaller steps like it does near the origin and almost always ends up on a .25 offset inside of a block.

from voxel-engine.

Do you think something like https://github.com/MikeMcl/big.js/ could fix this? If not, internally offset the coordinates to keep them small enough?

from voxel-engine.

I have been thinking about offsetting the coordinates. I think this will make any sort of multiplayer highly complicated, because the client would have to translate all game coordinates to local coordinates and use game coordinates when communicating with the server and other clients.

The problem seems to be the visibility calculation for the land mesh. The whole mesh goes away (easily see this in wireframe) when the camera is at certain positions.

Notice the minor change in the cameraVector which determines if the land is visible or not.

from voxel-engine.

These articles might be useful:

• http://www.polygon.com/features/2014/1/27/5338438/kerbal-space-program - similar bug (they called "The Kraken") in another game, fixed by dynamically changing coordinate system at large distances
• http://www.newyorker.com/online/blogs/elements/2014/01/a-journey-to-the-end-of-the-world-of-minecraft.html

from voxel-engine.

I tried to swap out Float32Array in gl-matrix for plain Javascript Array but that didn't fix it

from voxel-engine.

Also possibly relevant: http://www.arcsynthesis.org/gltut/Positioning/Tut07%20The%20Perils%20of%20World%20Space.html

from voxel-engine.