UE5 World Partition Calculator v2.0

Resolution & Components ▾

Overall Resolution

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vertices × vertices

Quads per Component

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Total Components

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World Size ▾

Width × Height

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Total Area

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Height Range (Z)

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m total span

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Point Density ▸

Vertex Spacing X

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m / vertex

Vertex Spacing Y

—

m / vertex

Density

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vertices / m²

Total Vertices

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vertices

Vertices / km²

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vertices / km²

Pixel Distance (X · Y)

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m between samples

Geometry ▸

Total Quads

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LOD 0

Triangles LOD 0

—

triangles

Triangles LOD 1

—

approx. ¼ of LOD 0

Max LOD Levels

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levels

Verts / Component

—

vertices (LOD 0)

Component World Size

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meters × meters

World Partition Streaming ▸

WP Cell Size

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m × m per cell

Components / Cell

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avg. components

Total WP Cells

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HLOD Region Size

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m × m per region

HLOD Regions Total

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Cells / HLOD Region

—

cells (edge × edge)

Streaming Memory Profile ▸

Loaded Cells

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Peak Streaming VRAM

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% of Total VRAM

—

streamed vs total

Memory & VRAM ▸

Heightmap

Heightmap (selected)

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Heightmap — all bit depths compared

Bit Depth	Bytes / Vertex	Precision	Total Size	Notes
8-bit	1 B	—	—	Visible terracing at normal scales
16-bit	2 B	—	—	UE default — production standard
32-bit	4 B	—	—	Float precision — rarely needed

Weightmaps

Weightmap / Layer (selected)

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All Layers Total (selected)

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Weightmap — all bit depths compared (per layer)

Bit Depth	Bytes / Vertex / Layer	Blend Steps	Size / Layer	All Layers Total
8-bit	1 B	256	—	—
16-bit	2 B	65,536	—	—
32-bit	4 B	float	—	—

Summary

Normal Map (runtime)

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RGBA8 · GPU only

Total Landscape VRAM

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HM + NM + Weightmaps

VRAM Budget Status

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% of budget used

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Streaming Memory · per WP Cell

Heightmap / Cell

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Weightmaps / Cell

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Total Memory / Cell

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Memory · per HLOD Region

Region Coverage

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m x m

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Heightmap / Region

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Weightmaps / Region

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Normal Map / Region

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RGBA8

Total / Region

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Approx. Vertices / Region

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vertices

Runtime Virtual Texture — VRAM ▸

Virtual Tex Full Size

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Page Pool VRAM (total)

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Page Size (UE default)

128

px x px per page

RGBA8 · 64 KB / page

Total Pages in Pool

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physical pages

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VRAM vs Weightmaps

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RVT texel density

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texels / m2 of landscape

RVT vs Weightmap approach — VRAM comparison

Approach	VRAM (layers)	Scales with resolution?	Fixed overhead?	Verdict
Weightmaps	—	Yes — vertex-linear	No	—
RVT page pool	—	No — fixed pool	Yes	—

LayerInfo & Weightmap Textures ▸

Weightmap Textures / Comp

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textures (4 layers/tex)

Weightmap Tex Resolution

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px × px per texture

Total Weightmap Textures

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across landscape

Weightmap VRAM (packed)

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RGBA8 per texture

Channels / Tex

R·G·B·A

Unique LayerInfo Assets

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LayerInfo objects

Cook / Import Time Estimator ▸

Heightmap Import

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estimated (NVMe SSD)

Landscape Cook Time

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estimated (8-core CPU)

Total Data Size

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⚠ Estimates assume NVMe SSD + modern 8-core CPU. HDD: ×5 import time. Actual times vary ±50% based on system, UE version, and project complexity.

Collision Memory ▸

Collision Mode

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Collision Memory

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Per Component

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◉ LIVE

LANDSCAPE COMPONENTS — WP CELLS HLOD REGION