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Overview

The Show Red Vignette action briefly shows a red pulsing overlay at the edges of the screen. This provides immediate visual feedback that the learner did something incorrect — tapped the wrong object, gave a wrong answer, or violated a constraint. The effect is automatic and brief, fading out on its own. No configuration is needed — simply use it to provide error feedback.

When to Use

  • Incorrect object interaction — Learner tapped or manipulated the wrong object
  • Wrong answer selection — Learner chose an incorrect option in a multiple-choice question
  • Safety violation — Speed threshold exceeded, unsafe interaction detected
  • Boundary violation — Learner attempted to go to a restricted area
  • Compliance failure — Learner skipped a required step or acknowledgment
  • Constraint violation — Learner broke any rule or procedural requirement

Parameters

Example: Wrong Object Selection

Tapping the wrong components triggers the red vignette and a retry.

Example: Speed Violation Feedback

Exceeding the speed limit triggers the red vignette and a warning message.

Visual Effect Details

  • Red overlay — A semi-transparent red tint covers the screen edges
  • Pulsing — The overlay pulses briefly (typically 1-2 seconds)
  • Automatic fade — The effect fades out automatically; no manual dismissal needed
  • Non-intrusive — The 3D scene remains visible behind the overlay

Best Practices

1

Pair with feedback text

Combine the visual red vignette with Show Text explaining what went wrong.
2

Use for constraint violations

The vignette works best for safety rules, speed limits, and interaction errors.
3

Don't overuse

Reserve red vignettes for actual errors, not for normal feedback.
4

Return to the same state

After showing the vignette, usually transition back to the current state to let learners retry.
5

Test on different screens

Verify the vignette visibility on different screen sizes and brightness levels.

Common Patterns

Quiz Wrong Answer with Feedback

Choosing wrong answers shows the red vignette and an error message. The correct answer advances.

Boundary Violation Detection

When the learner tries to move into a restricted zone, the red vignette signals the violation.

Safety Rule Violation

Attempting to operate equipment without PPE triggers the red vignette and a strong warning.
  • Show Text — Provide textual explanation alongside the visual vignette feedback
  • Show Panel — Display detailed error messages or remedial information
  • Pause Training — Optional: pause to ensure the learner sees the error feedback
  • Speed Tracking — Trigger vignette on speed violations