Terrain Loading Priority Fix

🎨 How It Works (The Engine Physics Decoded)
By default, when you cross a grid sector boundary, Valheim generates the visual aspect of the terrain map on background threads first. However, to establish the physical ground boundary (the collider) so your character can stand on it without falling into the void, Unity natively forces the physics mesh compilation ("cooking") to execute [b]directly on the main game thread[/b].
Because your main thread is already working overtime to handle frame rendering, creature AI ticks, UI layouts, and asset streaming, forcing it to suddenly calculate millions of data points for a brand-new mountain grid creates a sharp processing freeze. This freeze results in a jarring frame-time spike—a noticeable loading stutter.

⚡ Step 1: Safe Post-Render Memory Interception
Older optimization styles used intrusive prefixes that attempted to force loading queues from the ground up, which corrupted native initialization loops and caused characters to fall into un-rendered void world layers.
Version 1.3.5 completely rewrites this strategy by deploying a non-destructive
[code][HarmonyPostfix][/code]pass on
[code]Heightmap.Generate[/code]. This ensures all native terrain height data, vertex maps, and baseline textures initialize 100% exactly as the developers intended, maintaining absolute world generation stability.

⚡ Step 2: Authoritative Multithreaded Mesh Baking
The exact millisecond Valheim finishes laying down a terrain sector's baseline geometry, the mod steps in. It automatically bypasses the main thread loop and forcefully commands Unity's unmanaged physics system—via explicit
[code]Physics.BakeMesh[/code]routines—to compile and lock in the surface collision data instantly on idle background worker threads.

⚡ Step 3: Zero-Allocation Runtime Performance
The mod runs with a strict zero-allocation memory profile. Instead of generating new tracking arrays or duplicating 3D models in memory, it extracts the unique instance identifier of the mesh right where it sits in RAM. It contributes [b]0 bytes[/b] of extra garbage to your system heap, preventing garbage collection frame-hitches and ensuring your memory registers stay perfectly lightweight.

⚡ Step 4: Perfect Synergy with Boundary Load Staggerer
When paired with [i]BoundaryLoadStaggerer[/i], this mod establishes a synchronized, non-overlapping performance conveyor belt. Your stagger mod gently handles the frame-paced raw asset loading while [i]TerrainLoadingPriorityFix[/i] seamlessly follows downstream to pre-cook solid physics meshes the exact frame data arrives.

⚡ Step 5: Native Memory Lifecycle Alignment
Because the baked tracking data is stored directly within the chunk's own attached
[code]MeshCollider[/code]component, it respects the game's native lifecycle. The exact second you travel far away or log out, Valheim's standard cleanup routines sweep the pre-baked data cleanly out of your RAM. Your system memory never accumulates bloat, ensuring a flawless, leak-free environment across long, multi-hour play sessions.

🚨 Optimization Suite Compatibility Guide
This mod is part of a fully synchronized performance suite. Because it already handles 100% of your hardware pacing, particle emissions, script throttling, and pre-fetching, [b]mixing it with other performance or network optimizers will cause severe thread collisions.[/b]

🚫 Do NOT Mix This Suite With:
[list]
[][b]Other "Performance/Lag Fixer" Mods:[/b] Completely remove utilities like [i]Clockwork[/i], [i]Valheim Performance Optimizers[/i], or custom mesh loaders. Running outside scripts that rearrange thread queues will collide directly with our [b]Terrain Loading Priority Fix[/b], causing background deadlocks and world void drops.[/]
[][b]Alternative Network/Sync Utilities:[/b] Avoid packages that manipulate packet compression or transmission limits. They will override our [b]Network Culling Optimizer[/b] and choke your CPU while sailing past massive bases.[/]
[][b]Forced Garbage Collection Utilities:[/b] Remove mods that force memory purges on custom timers. They override our [b]Workstation Stance Interceptor[/b] (The Busy Filter), causing stutters mid-combat.[/]
[/list][b]The Golden Rule:[/b] Adding an outside optimizer is like adding a second steering wheel to your boat—it adds zero speed and creates thread confusion. Keep your performance profile restricted exclusively to this unified suite for stutter-free, borderless window multitasking stability!

# Installation instructions
Place TerrainLoadingPriorityFix.dll directly into your Valheim\BepInEx\plugins\ folder.


[b]My Mods:[/b]

[url=https://www.nexusmods.com/valheim/mods/3715]Global Update Manager[/url]
[url=https://www.nexusmods.com/valheim/mods/3705]Boundary Load Staggerer (Look-Ahead Streaming Matrix)[/url]
[url=https://www.nexusmods.com/valheim/mods/3701]Particle Pacing Limiter[/url]
[url=https://www.nexusmods.com/valheim/mods/3699]Base Virtual Proxy Optimizer[/url]
[url=https://www.nexusmods.com/valheim/mods/3694]Terrain Loading Priority Fix[/url]
[url=https://www.nexusmods.com/valheim/mods/3692]Performance Booster[/url]
[url=https://www.nexusmods.com/valheim/mods/3690]Auto Repair Fix[/url]
[url=https://www.nexusmods.com/valheim/mods/3680]Crosshair Hitbox Fix[/url]
[url=https://www.nexusmods.com/valheim/mods/3723]Network Culling Optimizer[/url]
[url=https://www.nexusmods.com/valheim/mods/3722]True Axis Build Rotator[/url]
[url=https://www.nexusmods.com/valheim/mods/3816]First Person Perspective[/url]