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الوسائط 1 للقائمة IES Lighting Profiles

الوصف

Give spot and point lights real photometric character. IES Lighting Profiles ships 20 curated IESNA light profiles imported as Texture Light Profile assets, renamed descriptively by their measured beam behavior - narrow spots, wide floods, multi-lobe and ring distributions - so the right profile is obvious from the name alone.

BP_IES_ProfilePreview provides profile selection, intensity, color, distance, and cone controls with normalized and non-normalized preview modes, and the overview map lines up all 20 profiles in an identical comparison layout.

A volumetric demo map stages seven hero profiles as light shafts in fog - pencil beams, hollow ring cones, and multi-lobe patterns - powered by the included IES light function master material that projects any profile into volumetric fog (Unreal's fog does not sample IES textures natively), with pre-framed cameras and shipping-ready fog settings.

FEATURES

  • 20 IES profiles as Texture Light Profile assets

  • Descriptive names derived from measured beam angles and distribution

  • Technical table - peak candela, beam angle, field angle, symmetry - per profile

  • BP_IES_ProfilePreview with profile, intensity, color, distance, and cone controls

  • Normalized and non-normalized brightness preview modes

  • Consistent side-by-side comparison overview map with readable labels

  • Volumetric fog demo map - seven hero profiles as light shafts, pre-framed cameras, tuned fog settings

  • IES light function master material + 7 ready-made instances for volumetric fog shafts (fog ignores plain IES textures)

  • Original .ies source files included for use outside Unreal

  • Markdown documentation, readable in-editor with the free Slate Doc Reader

KNOWN LIMITATIONS

  • IES profiles apply to spot and point lights; directional and rect lights do not use light profiles.

  • Unreal's volumetric fog does not sample IES textures; the included light function master provides the fog-shaft look and requires the Light Function Atlas settings shipped in DefaultEngine.ini.

  • Profiles are axially symmetric type-C photometry as measured in the original files.

  • Authored and validated in UE 5.5

Support: https://yarrawah.com.au

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