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Priorities Explained

This Article describes the Priority hierarchy in Blackout

Ian Peterson avatar
Written by Ian Peterson
Updated over 3 months ago

The Priority Hierarchy

Everything in Blackout follows a strict priority hierarchy. From highest to lowest priority:

1. Park (Coming Soon)

  • Highest Priority

  • When completed, this feature will allow you to "park" fixture values

  • Parked values cannot be overridden by any other control source, including the master fader

  • Use for critical safety lighting or fixtures that must remain at specific settings

2. Master Fader

  • Controls overall intensity output

  • Can affect all fixtures below it in the hierarchy

  • Cannot override parked values (when park feature is implemented)

3. Inhibitive Faders

  • Purpose: Limit maximum values that fixtures can reach

  • How it works: Sets a ceiling that other controls cannot exceed

  • Example: Set an inhibitive fader to 50% intensity - no other fader or command can make that fixture go above 50%

  • Even super priority faders and the command line cannot override inhibitive limits

  • Useful for safety restrictions or venue limitations

4. Effects

  • Positioned below inhibitive faders, so they can be limited by inhibitive controls

  • Cannot be overwritten by anything below them in the hierarchy, including super priority faders

  • Run independently once started, making them reliable for consistent automated lighting

5. Super Priority Faders

  • Special behavior: Starts as additive, becomes non-additive when reaching maximum

  • Default settings: Auto stop is turned OFF by default

  • Use case: Perfect for live adjustments during critical cues

  • Cannot override effects or inhibitive faders

  • Command line cannot override super priority faders

  • Ideal for "throw that light on a fader for this cue" scenarios

6. Freeze

  • Will convert command line values into a frozen/super priority state

  • Allows you to play looks while maintaining manual adjustments

  • Manual values remain unchanged until unfrozen

7. Command Line

  • Can overwrite any fader below super priority

  • Important change: If you dump a fader and bring it back up, it will retake control from manual values

  • Cannot override super priority faders, effects, or inhibitive faders

8. HTP (Highest Takes Precedence) Faders

  • Uses intensity values for comparison to determine output level

  • Mixed behavior: Other parameters (color, position) use LTP since there's no "higher" value for different colors or positions

  • Good for traditional intensity control where multiple sources might control the same fixtures

9. High Priority Faders

  • One step above default LTP

  • Cannot be overwritten by standard LTP faders

  • Useful when you need one control to take precedence over standard playback

10. LTP (Latest Takes Precedence) Faders

  • Default priority level

  • Most recent adjustment takes control

  • Fundamental concept: Whatever you touch last controls the fixture

  • Applies to both faders and command line operations


Key Priority Concepts

LTP vs HTP

  • LTP (Latest Takes Precedence): The most recently adjusted control takes over - essential concept for lighting control

  • HTP (Highest Takes Precedence): The highest intensity value wins, but other parameters still use LTP logic

Additive vs Non-Additive Faders

  • Additive (default): Adds to existing fixture values for smooth transitions

  • Non-additive: Jumps directly to fader level, taking immediate control

  • Super priority faders have special behavior: additive until maximum, then non-additive

Auto Start/Stop Settings

  • Auto Start: Fader activates when moved up from zero

  • Auto Stop: Fader deactivates when returned to zero

  • Super priority faders default to auto stop OFF for maintained control

Overwritten Setting

  • When ON (recommended): Higher priority faders will turn off lower priority faders controlling the same parameters

  • When OFF: Lower priority faders remain active and will resume control when higher priority faders are turned off


Practical Applications

Live Performance Scenario

Use super priority faders for critical live adjustments that must not be overridden by other playback.

Safety Applications

Use inhibitive faders to set maximum safe levels for fixtures in venues with power or heat restrictions.

Layered Control

Think of faders like Photoshop layers - each fader adds a "layer" of control that can be shown or hidden without destroying the layers below.

Temporary Adjustments

Use high priority faders when you need temporary control that shouldn't be overridden by standard playback sequences.

Tips for Success

  1. Start with LTP: Most faders should use LTP priority unless you have a specific need

  2. Use inhibitive sparingly: Only when you need absolute limits

  3. Super priority for live work: Reserve for hands-on adjustments during shows

  4. Understand the stack: Like Photoshop layers, each priority level adds to or modifies the output

  5. Keep overwritten ON: Helps maintain clear control hierarchy

View States

Use the top navigation bar to help visualize what's controlling each parameter, showing whether control comes from faders, sequences, effects, or other sources.

Understanding priorities is like learning a new language - take time to practice and experiment with different scenarios to build confidence with the system.

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