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Posted

So recently I've been messing around with rendering things that are millions of blocks away from the actual player; and I noticed this strange effect occurring with the distant renders after doing the GL11.translate().

 

Half the time polygons were disappearing, the other half the time the models were shaking around! Even rotating the camera caused this shake. Now I eventually fixed this using VertexBuffer.setTranslation(); but I just wanted to know why.

 

Why does a (very) far away object freak out when you render it?

"you seem to be THE best modder I've seen imo."

~spynathan

 

ლ(́◉◞౪◟◉‵ლ

Posted

I think its because of the inconsistency of the mc positions? I once had a severe issue with moving polygons rendered from the mc particle system. The problem was that the players/camera position is updated/moved during rendering meaning the data passed to the render code is not valid anymore.

 

Now I dont know if you use the players position at all, but for me the solution was to get the players position actively instead of using the passed values. But again I dont know if you use the camera/player position at all.

 

Aslo when messing around with that stuff, a small offset(on the screen) for a polygon 1 block away is almost not noticable, while that same small offset for the millions blocks away polygon may have a much bigger impact. Especially if you are able to stroke it on your enviroment.

 

Besides keep in mind that your polygon might be smaller than one pixel. Which can also create unespected result.

 

Anyway just some thoughts about this problem, tbh I dont know the exact problem, though I hope this was helpfull.

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- N2ConfigAPI

- Meachanical Crafting Table

 

Latest:

- CollectionUtils

 

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Posted

This has nothing to do with Minecraft's "inconsistencies."  It's called floating point error.

Apparently I'm a complete and utter jerk and come to this forum just like to make fun of people, be confrontational, and make your personal life miserable.  If you think this is the case, JUST REPORT ME.  Otherwise you're just going to get reported when you reply to my posts and point it out, because odds are, I was trying to be nice.

 

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Posted
  On 6/18/2016 at 5:42 PM, N247S said:

I thought that java has 'fixed' that problem with its own implementation

 

It's own implementation of what? And how would Minecraft "override" that implementation if it is built in Java?

Apparently I'm a complete and utter jerk and come to this forum just like to make fun of people, be confrontational, and make your personal life miserable.  If you think this is the case, JUST REPORT ME.  Otherwise you're just going to get reported when you reply to my posts and point it out, because odds are, I was trying to be nice.

 

Exception: If you do not understand Java, I WILL NOT HELP YOU and your thread will get locked.

 

DO NOT PM ME WITH PROBLEMS. No help will be given.

Posted

Well TIL that all graphics computations are done in floats for performance reason.

 

I guess translateF and translateD do the same thing; and etc.

"you seem to be THE best modder I've seen imo."

~spynathan

 

ლ(́◉◞౪◟◉‵ლ

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