AI Video Generator

Portal Slice

Model

Prompt

PORTAL SLICE — PHOTOREAL SPLIT-REALITY VFX

Use the person in the uploaded image as the exact character reference. Preserve their identity, face, hairstyle, clothing, body proportions and recognizable appearance.

Place them naturally walking through a large brutalist concrete plaza in daylight.

ENVIRONMENT:

Wide pale concrete ground.
Monolithic concrete buildings.
Long straight architectural lines.
A few trees and benches.
Open sky.
Minimal visual clutter.

One continuous photoreal shot.

CORE IDEA:

A razor-thin VERTICAL CUT appears through physical reality.

The cut opens sideways into a narrow gap.

Behind it is NOT another random location.

It reveals an ALTERNATE VERSION OF THE EXACT SAME PLAZA.

LEFT/ORIGINAL WORLD:

Clean daylight.
Intact architecture.
Normal trees.
Dry concrete.
Calm atmosphere.

RIGHT/ALTERNATE WORLD:

The exact same architecture and spatial layout, but transformed into a lush abandoned future:

concrete covered in vines,
large vegetation,
moss,
small pools of water,
mist,
warm shafts of sunlight,
nature reclaiming the city.

Every building exists in exactly the same position on both sides.

The portal is a boundary between two versions of ONE PLACE.

NORMAL OPENING:

Begin completely normally.

The subject walks naturally through the clean brutalist plaza.

Camera tracks backward at a slight three-quarter angle.

Natural human gait.

Nothing unusual happens.

THE CUT:

A perfectly straight razor-thin vertical black line suddenly appears in open space several meters ahead of the person.

It extends from the ground all the way beyond the top of frame.

The person naturally slows.

The line has no glow.

No particles.

No circular energy.

It looks like reality itself has been cut with an infinitely thin blade.

The person approaches cautiously.

OPENING:

The vertical line begins widening horizontally.

One centimeter.

Five centimeters.

Twenty centimeters.

As it opens, the viewer sees DEPTH inside the cut.

The physical world appears to have thickness.

Then the alternate version of the plaza becomes visible through the narrow opening.

A vertical strip of lush overgrown reality.

The gap widens to approximately one meter.

Now the contrast is unmistakable:

outside portal = clean modern plaza.

inside portal = SAME plaza reclaimed by nature.

The edges remain perfectly straight and vertical.

No glowing ring.

No magical border.

THE PERSON INVESTIGATES:

The subject stops beside the opening.

They look through it.

On the other side, the same building continues at exactly the same geometry but covered in vegetation.

The same bench exists, aged and moss-covered.

The same tree exists, much larger.

Spatial continuity is perfect.

The person cautiously extends ONE HAND through the vertical slice.

The hand crosses the boundary.

On the alternate side, lighting on the hand immediately changes to the warmer humid environment.

The rest of the person remains in the original world.

They pull the hand back.

Normal daylight returns.

CROSSING:

The person decides to step through.

One foot crosses.

Then half their body.

HERO MOMENT:

The vertical boundary runs directly through the center of their body.

LEFT HALF:
original clean plaza lighting.

RIGHT HALF:
warm overgrown-world lighting.

The human remains one continuous physical person spanning two realities.

Then they step fully through.

The camera follows through the opening.

ALTERNATE WORLD:

We are now inside the overgrown version.

Same camera direction.

Same plaza geometry.

But everything is transformed:

massive vines,
moss,
water,
mist,
vegetation,
aged concrete,
warm sunlight.

The subject turns and looks back.

Behind them, the vertical portal opening reveals the CLEAN original plaza like a perfectly aligned window into the past.

CLOSING:

The opening begins narrowing.

The person steps toward it.

Too late.

The vertical gap becomes thinner.

One meter.

Half meter.

Twenty centimeters.

A thin strip of clean reality.

Then:

SNAP.

The portal closes into a single razor-thin vertical line.

The line disappears.

The subject is now stranded in the overgrown alternate world.

FINAL:

The person stands alone.

They look at the exact place where the portal vanished.

One beat.

Behind them, a distant bird suddenly flies through the reclaimed architecture.

The person slowly turns toward the enormous overgrown city.

Camera subtly pulls backward.

End.

PORTAL GEOMETRY — CRITICAL:

The portal is NOT circular.

It is NOT an oval.

It is NOT a glowing doorway.

It begins as an infinitely thin VERTICAL SLICE.

It opens by separating horizontally into TWO PERFECTLY STRAIGHT VERTICAL EDGES.

The alternate world exists physically behind the opening.

Both realities share EXACTLY THE SAME architecture and spatial coordinates.

Only the STATE OF THE WORLD differs.

ORIGINAL:
clean, modern, inhabited.

ALTERNATE:
same place decades later, abandoned and reclaimed by nature.

BOUNDARY:

Hard spatial boundary.

No blending.

No morphing.

No gradient.

When an object crosses the slice, each side immediately receives the correct lighting/environmental treatment for its world.

CAMERA:

Natural backward tracking during approach.

Slow down when the slice opens.

Move slightly sideways to reveal depth through the narrow portal.

Follow directly behind the person as they cross.

After crossing, turn enough to clearly show the original world through the portal before it closes.

One continuous take.

CRITICAL:

No magical sparks.
No energy ring.
No swirling vortex.
No sci-fi machinery.
No random second environment.

The spectacle comes from PERFECT SPATIAL CONTINUITY between two radically different versions of the same place.

PROGRESSION:

NORMAL PLAZA
→ RAZOR-THIN VERTICAL CUT
→ CUT OPENS
→ ALTERNATE SAME WORLD REVEALED
→ HAND CROSSES
→ HALF-BODY / TWO-REALITIES HERO MOMENT
→ PERSON CROSSES
→ CAMERA FOLLOWS
→ LOOK BACK THROUGH PORTAL
→ SLICE NARROWS
→ SNAP CLOSED
→ PERSON STRANDED IN OVERGROWN FUTURE.

5991 / 50000

Reference Images (Optional)

Aspect Ratio

Duration

Resolution

Generate Audio2x creditsBasic+

Required Credits50

Video Preview