Something has changed affecting graphics .While Moving or turning the rails vanish , they reappear when you look directly at them .

The problem starts in commit d6fdd5b

I will check later to see what code change caused this . unless someone beats me to it .lol

Should be an old bug, There's roughly a half block at each end where the track won't render because the game doesn't think it's on screen.
The alternative is to render whether or not it's on screen, which is very bad for FPS...

Eternal , If you want to look at commit d6fdd5b to see what started causing this . I will look at it later to narrow it down if you haven't already fixed it . Its a really bad bug

I suspect its your edit here
src/main/java/train/common/core/util/TraincraftUtil.java

That class has nothing to do with rendering or the hitbox of the rails that defines it's culling in the world render.

Are you sure you're not running any other mods that could potentially be messing up the render calls? There's already known issues of other mods making the rails render improperly, and the fixes thus far haven't worked fully.

okay, i can confirm the issue is worse than usual, but i can also confirm it has to do with the hitbox of the rail block, so i may be able to get a fix for this tonight.

Fixed it
src/main/java/train/common/blocks/BlockTCRail.java

revert back to
public AxisAlignedBB getCollisionBoundingBoxFromPool(World par1World, int par2, int par3, int par4) {
return null;

That fixes that issue and adds back the crash related to the null hitbox.

with any luck that should be a more proper fix...

Fixed ! and a small FPS boost

Thanks Eternal

Closed !