Moving Lights

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Fixture Types

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Spotlight

• DMX Horizontal: VRSL-DMX-Mover-Spotlight-H-13CH.prefab
• DMX Vertical: VRSL-DMX-Mover-Spotlight-V-13CH.prefab
• DMX Legacy: VRSL-DMX-Mover-Spotlight-L-13CH.prefab
• AudioLink: VRSL-AudioLink-Mover-Spotlight.prefab

• Sharp, focused beam output
• 8 gobo/projection selections
• Volumetric cone rendering
• Projection surface rendering
• Fixture mesh visualization

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Washlight

• DMX Horizontal: VRSL-DMX-Mover-WashLight-H-13CH.prefab
• DMX Vertical: VRSL-DMX-Mover-WashLight-V-13CH.prefab
• DMX Legacy: VRSL-DMX-Mover-WashLight-L-13CH.prefab
• AudioLink: VRSL-AudioLink-Mover-Washlight.prefab

• Wide, soft beam output
• No gobo projections
• Adjustable beam width
• Area coverage optimized

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DMX Channel Layout (13 Channels)

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Pan/Tilt Behavior

• Controls horizontal rotation
• Coarse channel provides main positioning
• Fine channel provides 16-bit precision
• Default range: 0° to 360°
• Configurable via maxMinPan property

• Controls vertical rotation
• Coarse channel provides main positioning
• Fine channel provides 16-bit precision
• Default range: -180° to 180°
• Configurable via maxMinTilt property

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Color Mixing (Channels 5-7)

• Full 8-bit resolution per channel
• Hardware-accelerated color calculation
• Color multiplier support for brightness boost
• Respects global color tint setting

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Gobo Selection (Channel 10 - Spotlight Only)

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Gobo Spin (Channel 11)

• 0-127: Counterclockwise rotation (slow to fast)
• 128: Stop
• 129-255: Clockwise rotation (slow to fast)

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Inspector Properties

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DMX Settings

enableDMXChannels     // Enable/disable DMX control
dmxChannel            // Starting DMX channel (1-512)
dmxUniverse           // DMX universe (1-9)
nineUniverseMode      // Extended universe mode
useLegacySectorMode   // Legacy sector addressing

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Movement Settings

invertPan             // Invert pan direction
invertTilt            // Invert tilt direction
isUpsideDown          // Fixture mounting orientation
panOffsetBlueGreen    // Pan offset in degrees (0-360)
tiltOffsetBlue        // Tilt offset in degrees (0-360)
maxMinPan             // Maximum pan range (+/- degrees)
maxMinTilt            // Maximum tilt range (+/- degrees)

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Fixture Settings

enableAutoSpin        // Enable gobo auto-spin
enableStrobe          // Enable strobe effects
selectGOBO            // Manual gobo selection (1-8)
coneWidth             // Beam width (0-5.5)
coneLength            // Beam length (0.5-10)
maxConeLength         // Volumetric mesh length (0.275-10)

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Intensity Settings

globalIntensity               // Master brightness (0-1)
finalIntensity                // Maximum brightness limit (0-1)
finalIntensityComponentMode   // Enable per-component control
finalIntensityVolumetric      // Volumetric brightness (0-1)
finalIntensityProjection      // Projection brightness (0-1)
finalIntensityFixture         // Fixture mesh brightness (0-1)

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Color Settings

lightColorTint        // HDR color tint (default: white)

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Configuration Examples

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Basic DMX Setup

1. Place mover prefab in scene
2. Configure DMX settings:
   • DMX Channel: 1
   • DMX Universe: 1
   • Enable DMX Channels: ✓
3. Adjust cone settings:
   • Cone Width: 2.5
   • Cone Length: 8.5
   • Max Cone Length: 1.0
4. Add VRSL DMX Grid Reader to scene

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Inverted/Upside Down Mounting

isUpsideDown = true
invertPan = true    // May need adjustment
invertTilt = true   // May need adjustment
tiltOffsetBlue = 270 // Compensate for mounting

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Limited Range Movement

maxMinPan = 90    // +/- 90° pan range (180° total)
maxMinTilt = 45   // +/- 45° tilt range (90° total)

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Performance Optimization

finalIntensityComponentMode = true
finalIntensityVolumetric = 0.5    // Reduce volumetric brightness
finalIntensityProjection = 1.0    // Keep projection full
finalIntensityFixture = 0.7       // Reduce fixture mesh
enableStrobe = false              // Disable if not needed

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Shaders

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Spotlight Shaders

• VRSL-StandardMover-FixtureMesh.shader - Fixture body
• VRSL-StandardMover-ProjectionMesh.shader - Light projection
• VRSL-StandardMover-VolumetricMesh.shader - Volumetric cone

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Washlight Shaders

• VRSL-WashMover-FixtureMesh.shader - Fixture body
• VRSL-WashMover-ProjectionMesh.shader - Light projection

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Use Cases

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Spotlights

• Stage Key Lighting - Focused illumination on performers
• Gobo Projections - Pattern and texture projection
• Spotlight Effects - Dramatic beam effects
• Follow Spots - Tracking moving subjects (via Udon)

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Washlights

• Area Lighting - Wide coverage for stages and sets
• Color Washes - Full-stage color changes
• Uplighting - Wall and backdrop illumination
• Ambient Lighting - General scene lighting

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Troubleshooting

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Fixture Not Moving

• Verify DMX channel assignment matches control software
• Check that pan/tilt channels are receiving data
• Ensure enableDMXChannels is enabled
• Verify VRSL Grid Reader is present and configured

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Erratic Movement

• Increase smoothing (in Grid Reader settings)
• Check for stream compression artifacts
• Verify channel assignments don’t overlap
• Test with slower movement commands

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No Light Output

• Check intensity channel (Channel 8) is above 0
• Verify RGB channels (5-7) have values
• Ensure globalIntensity and finalIntensity > 0
• Check that fixture isn’t obscured by geometry

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Gobo Not Appearing

• Spotlight only - washlights don’t support gobos
• Verify Channel 10 is within correct range
• Check selectGOBO property in Udon mode
• Ensure gobo textures are assigned in material

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AudioLink Integration

• Band selection for intensity modulation
• Band multiplier for sensitivity adjustment
• Color chord sampling for auto-coloring
• Theme color integration
• Delay offset for timing effects