# Sci-fi Hologram HUD

Turn a mechanism into a legible instrument of light. A scanned wireframe rests
above a projected circular stage. The camera finds a part, a bracket locks onto
it, the part opens along its assembly axis, and a callout explains its job.

## Visual construction

Use three distinct depths: a quiet dotted background, the object and projector
floor, and sharp foreground instruments. Start with near-black tinted toward
the primary hue. Let distance reduce line opacity. Keep bright near edges thin;
apply restrained glow behind them so adjacent wires remain distinguishable.
Build recognizable geometry with physically connected parts. A specific tube,
lens or hinge needs its own silhouette and topology.

Choose one cool light colour and one warm accent. Cyan carries geometry, labels
and instruments; amber marks a settled result. Near-white signals a brief active
edge. The showcase uses Rajdhani for headings and numbers and Share Tech Mono
for telemetry. Use tabular digits and stable alignment while values resolve.

Place callouts on dark plates with thin borders and corner ticks. Reserve room
for captions below the subject. A leader begins on the actual component, bends
once and terminates at its plate. Readable labels take priority over decoration.

## A sequence that explains

1. Reveal the model with a moving scan plane, preserving its world coordinates.
2. Start a camera move before the next target locks. Use a brief bracket snap
   and a restrained flash to identify the subject of the next sentence.
3. Open only the relevant assembly. Move a shell along its physical axis while
   the internal mechanism remains located and illuminated.
4. Resolve a label or value after the mechanism makes it understandable. Dock
   the result into a quiet rail if the viewer will need it again.
5. Reassemble before changing scale. A loupe can show location and detail at
   once. Save a translucent whole-object reveal for a single major payoff.

Render continuous motion at 24 fps or the production's declared frame rate.
Only the glyph scramble should step. Orbit, push, dolly and whip each have a
reason: shape, detail, connection or attention. Keep the object large enough to
read and give completed text time to settle. Respect assembly axes when choosing
camera views; avoid routing moving pieces through labels.

## Sound and timing

Write narration against the mechanism being shown. Put voice, captions, camera,
locks and score on one timeline. A synth pulse can set the information rhythm;
short pitched blips and servo sounds mark real actions. Reduce music and effects
under speech with a held envelope. Let quieter passages make reading possible.
Review the actual mix by listening as well as by measuring its levels.

## Adaptation and delivery

Choose a new object and author its geometry, explanation and timing. Suitable
subjects include instruments, vehicles, scientific devices and manufacturing
assemblies. Distinguish sourced specifications from fictional demonstrations.
Credit reference material and keep required identities faithful to supplied assets.

Inspect line separation at delivery resolution, callout anchors, subtitle safe
areas, opening and closing assemblies, transitions and final audio. Frame metrics
and contact sheets describe their own scope; they do not prove perceptual identity.

This package supplies a visual guide and blank authoring inputs. The published
film is separate from the reusable package. The sample's retained source and
assembly require separate access for exact replay. See [provenance](PROVENANCE.md).