CesiumGS/cesium-unreal-samples

Disable Frustum Culling in `03_CesiumDenver`

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#74 opened on May 1, 2026

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good first issue

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Description

Frustum culling is enabled (by default) on the Aerometrex Denver dataset. When the player turns, the buildings behind them will be hidden, causing the shadows / lighting to toggle dramatically in the scene.

We normally advise turning this setting off for dynamic first-person camera movement anyway, so this would make for good practice.

Contributor guide

Research direction
Locate the setting for frustum culling in the Cesium3DTileset or CesiumSunSky actor and disable it. Typically, it's under the Cesium3DTileset's 'Frustum Culling' property in the details panel, or programmatically set bEnableFrustumCulling to false.
Tech stack
None
Domain
game dev
Issue type
Bug
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
1
Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.
Under 1 hour
Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.
Fresh
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
Clear
Prerequisites
Unreal Engine
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
90