Conclusions First
floatingproduced the strongest levitation effect. All 3 images show the subject completely off the ground with arms and legs spread wide in midair.levitatingalso showed floating in all 3 images. Similar midair composition tofloating, but with a tendency toward more dynamic poses with arms spread out.anti gravityshowed levitation in 2 out of 3 images. s1 shows a pose arched backward, s3 shows an X-shaped jump with limbs spread wide, while s2 remained standing on the ground.hair floating upshowed hair tips flipping upward in 2 out of 3 images. However, body levitation was only in 1 out of 3, making it limited as a floating expression.zero gravityshowed only slight levitation in 1 image (s1) with a walking-like pose, while s2 and s3 remained standing upright — unstable as a floating effect.weightlessshowed the subject standing on the ground in all 3 images. No difference from control.suspendedshowed floating in 2 out of 3 images, but as a jump-in-progress-style depiction rather than “floating weightlessly in zero gravity.”
Experiment Design
| Item | Value |
|---|---|
| Model | z-image-turbo (6B, photorealism-focused distillation) |
| Steps | 8 |
| Sampler | euler |
| Scheduler | ddim_uniform |
| CFG | 1.0 |
| Size | 1024x1024 |
| Seed | 3 fixed (shared across all conditions) |
| Per condition | 3 images (3 seeds) |
| Total | 8 conditions = 24 images |
Base Prompt
Casual clothing with full body adopted to judge weightlessness by clothing and hair behavior.
A00: control
| seed 1 | seed 2 | seed 3 |
|---|---|---|
 |  |  |
Observation: All 3 images show the subject firmly standing on the ground. s1 is standing upright in front of a concrete wall wearing sandals. s2 is standing facing forward indoors wearing white sneakers. s3 is standing upright in front of a gray wall with white sneakers. Hair hangs naturally downward in all 3 with no clothing movement. Full body fits within the frame.
A01: zero gravity
| seed 1 | seed 2 | seed 3 |
|---|---|---|
 |  |  |
Observation: Only 1 out of 3 (s1) shows a walking-like pose with one foot off the ground and hair lightly swaying, but cannot be called levitation. s2 is standing facing forward in front of a wall — almost identical composition to the control. s3 is also standing upright in front of a wall with no difference from the control. Floating effect is unstable, with 2 out of 3 indistinguishable from the control.
A02: floating
| seed 1 | seed 2 | seed 3 |
|---|---|---|
 |  |  |
Observation: All 3 images show the subject completely off the ground. s1 shows both arms spread wide left and right with legs open, floating in midair. Hair streams upward; no shoes. s2 shows a tilted-body pose with legs extended backward and one arm forward in a flying posture. s3 also shows a tilted body floating in midair, with just the tip of one foot near the ground. The difference from the control is clear — the full body is suspended in midair.
A03: weightless
| seed 1 | seed 2 | seed 3 |
|---|---|---|
 |  |  |
Observation: All 3 images show the subject standing on the ground — no difference from the control. s1 is standing upright in front of a concrete wall wearing sneakers. s2 also stands facing forward in front of a wall. s3 is similarly standing upright. No hair floating or clothing movement, and no floating effect is observed.
A04: levitating
| seed 1 | seed 2 | seed 3 |
|---|---|---|
 |  |  |
Observation: All 3 images show the subject in midair. s1 shows arms spread wide with legs spread front-to-back, floating. Barefoot, with hair streaming upward. s2 shows a tilted body floating, s3 similarly. Compared to floating, there is a tendency toward more open, free poses with arms widely spread. The disappearance of shoes resulting in bare feet is also common. The distance from the ground is about half a body height, clearly levitating.
A05: anti gravity
| seed 1 | seed 2 | seed 3 |
|---|---|---|
 |  |  |
Observation: Levitation confirmed in 2 out of 3. s1 shows the body arched dramatically backward with arms spread, floating — only toes appear to touch the ground. s3 shows an X-shaped jump with all limbs spread wide, completely airborne. Meanwhile s2 stands upright facing forward in front of a wall — no difference from the control. When levitation does occur, the poses tend to be dramatic with the body in an unusual position.
A06: hair floating up
| seed 1 | seed 2 | seed 3 |
|---|---|---|
 |  |  |
Observation: Hair tips flipping upward confirmed in 2 out of 3 (s1, s3). s1 shows hair spreading upward across the entire head, with the body tilted and one leg kicked backward — off the ground. s3 shows hair spreading outward widely with a smiling, jumping-like composition. s2 remains standing with no change in hair — no difference from the control. Cases where both body and hair float vs. cases where neither is affected split evenly.
A07: suspended
| seed 1 | seed 2 | seed 3 |
|---|---|---|
 |  |  |
Observation: Subject off the ground in 2 out of 3 (s1, s2). s1 shows arms spread at the sides with legs bent, floating in front of a wall. s2 shows arms and legs spread wide with hair streaming upward, floating in front of a wall. However, both show dynamic poses like a frozen moment of a jump — closer to a leap than quietly floating. s3 stands upright in front of a wall — no difference from the control.
Summary
| Keyword | Floating Effect | Stability | Notes |
|---|---|---|---|
floating | Full body in midair | 3/3 | Most stable. Recommended |
levitating | Full body in midair | 3/3 | Same effect as floating |
anti gravity | Full body in midair | 2/3 | Tendency for dynamic poses |
suspended | Jump-like floating | 2/3 | Closer to a leap |
hair floating up | Hair floating + occasional body floating | 2/3 | Hair effect is primary |
zero gravity | Almost no effect | 1/3 | Little difference from control |
weightless | No effect | 0/3 | No difference from control |
For stable floating expression, using floating or levitating is reliable — both showed the subject off the ground in 3 out of 3 images.
Conceptual/abstract words like zero gravity and weightless have weak effects. Action-oriented words (floating, levitating) produced higher effects than conceptual ones (zero gravity, weightless).
Additionally, a tendency for shoes to disappear resulting in bare feet was observed in floating conditions. The reason is unknown, but floating poses and bare feet appear to be associated. Clothing (t-shirt, jeans) itself did not change in gravity-defying ways, while hair sometimes streamed upward.
![[Experiment] Prompts for Weightlessness Inside a Spaceship | 8 Conditions, 24 Images](/tips/zero-gravity-spaceship-test/a04_space_window_s2_0_0000_7295072554507705269.webp)
