Lamp

Overview

The Lamp component turns any mesh into a visual status indicator — a signal tower light, a button lamp, a machine state beacon. It drives the emission color and intensity of the renderer through a MaterialPropertyBlock, so no per-renderer material is instantiated and GPU batching is preserved. The lamp can be switched on and off, set to flash at a configurable rate, and driven directly from PLC signals.

This component was reworked in realvirtual 6.3.3 to use emission overrides via MaterialPropertyBlock.

The shared material on the lamp's MeshRenderer must have emission enabled (URP Lit, HDRP Lit, or Standard with the _EMISSION keyword active) for the color override to be visible. When you add the component in the editor it assigns the built-in Lamp material automatically.

Properties

On Color (Color) The emission color shown while the lamp is on. Also applied as the base color so the lamp reads correctly when unlit.

Intensity (float) HDR emission intensity multiplier applied to the On Color. Higher values produce a stronger glow and bloom. Set to 0 for a flat, non-glowing color.

Flashing (boolean) When enabled, the lamp blinks instead of staying steady. Can also be driven at runtime by the flashing signal.

Period (float) Flashing period in seconds — the full on/off cycle length. The lamp is on for half the period and off for the other half.

Lamp On (boolean) The current on/off state. Toggle it in the Inspector to test, or let the PLC signal control it.

Signal Lamp On (PLCOutputBool) PLC signal that switches the lamp on and off. When assigned, it overrides the manual Lamp On state each frame.

Signal Lamp Flashing (PLCOutputBool) PLC signal that enables or disables flashing mode at runtime.

Quick Start

Add the Lamp component to a GameObject that has a MeshRenderer (e.g. a cylinder or a signal-light mesh).
Pick the On Color and adjust Intensity until the glow looks right.
To test, enable Lamp On in the Inspector during play mode.
For PLC control, assign Signal Lamp On (and optionally Signal Lamp Flashing) to your interface signals.
For a blinking warning light, enable Flashing and set the Period.

Common Use Cases

Signal tower – Stack several lamps (red/amber/green) driven by machine-state signals.
Button lamps – Illuminate operator panel buttons based on PLC outputs.
Fault indication – Flashing red lamp tied to an alarm or collision signal.
Status beacon – Steady green for running, flashing amber for warning.

Overview

Properties

Quick Start

Common Use Cases

See Also