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Rendering Systems Auditor

Rendering Systems Auditor

Section titled “Rendering Systems Auditor”

Module: Tech · Category: Performance · Tool ID: RenderingSystemsAuditor

Four-tab UE5 rendering pipeline auditor covering the four pillars of virtualized rendering. Nanite audits mesh suitability and monitors the streaming pool. Lumen Scaling automates Lumen CVar management with hardware-profile presets. Shadows (VSM) monitors Virtual Shadow Map page pool and tunes dynamically. Virtual Textures monitors VT physical pool residency and detects oversubscription.

ℹ️ Focus: runtime performance tuning. For scene correctness checks, cross-reference Lumen Scene Debugger and Virtual Texture Diagnostic.

Screenshot 01 — Hero shot — Auditor on Nanite tab with mesh suitability stats and streaming pool monitor visible.

When to use it

Section titled “When to use it”
  • UE5 rendering performance tuning — Nanite / Lumen / VSM / VT
  • Pre-shipping perf audit on systems-level rendering
  • Hardware-profile preset application (low-end / mid / high / cinematic)
  • Monitoring streaming pools at runtime in PIE

When not to use it

Section titled “When not to use it”
  • Don’t expect this to handle scene-correctness issues — see Lumen Scene Debugger / Virtual Texture Diagnostic
  • Don’t expect this to fix asset-side issues — runtime tuning only

Opening the tool

Section titled “Opening the tool”
  1. Open the EQLabs Hub and search for Rendering Systems (or browse to Tech → Performance)
  2. Click the tool card
  3. Use the tab bar: Nanite / Lumen Scaling / Shadows (VSM) / Virtual Textures

Tab 1 — Nanite

Section titled “Tab 1 — Nanite”

Mesh suitability + streaming pool monitoring.

Tab 2 — Lumen Scaling

Section titled “Tab 2 — Lumen Scaling”

Automated Lumen CVar management with hardware-profile presets (Low / Medium / High / Epic / Cinematic). Apply a preset, all relevant Lumen CVars set together.

Tab 3 — Shadows (VSM)

Section titled “Tab 3 — Shadows (VSM)”

Virtual Shadow Map page pool monitoring + dynamic tuning. Surfaces page pool overflow conditions and suggests CVar adjustments.

Tab 4 — Virtual Textures

Section titled “Tab 4 — Virtual Textures”

VT physical pool residency + oversubscription detection.

Settings reference

Section titled “Settings reference”

Persists via standard tool framework.

Output

Section titled “Output”
  • CVar changes — applied during Lumen Scaling preset apply (and similar)
  • In-panel monitoring — live during PIE
  • No asset edits — runtime tuning only

Tips & gotchas

Section titled “Tips & gotchas”
  • Lumen scaling presets are starting points — tune to project after applying a preset
  • VSM page pool overflow is a frequent UE5 perf issue — monitor in PIE, adjust pool size CVars
  • VT oversubscription causes streaming hitches — large pool sizes solve this but eat VRAM
Section titled “Related tools”
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