Task template
MiniMax H3 light-trail prompt: one source moves, its older trail fades
Start with one original glowing point and no trail, then inspect source motion and later fading separately. Includes a clean PNG and blank observations; no particle simulation or generated clip is supplied.
MiniMax-H3 · image-to-video · Original task method; generation has not been independently verified.
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MiniMax H3 light-trail prompt: one source moves, its older trail fades
Keep one identifiable moving light while a temporary trail forms behind passed positions and later disappears. A row of solid copied lights or a permanent drawn line would produce a different visual task.
Original practice illustrations and an untested method. No H3 task has been submitted and no generated result is included.
Establish the authored starting state
The dark input has one mint glowing source near the lower left and four small muted background markers. The glow rings surround the same solid center; the four markers are non-emitting position references. There is no existing trail. review-guide.svg draws an intended curved route with a weaker older tail for later comparison only; it is not a second uploaded image or a generated ending.
Download the actual input PNG · Editable design SVG
Assign the moving and fixed roles
Track the single solid center as the emitter, the already passed path as the trail, and the four fixed markers as the background. A glow is not permission to duplicate the source. source-trail-observation-roles.json records qualitative roles, not particle lifetime or an alpha-control API.
- Confirm the clean first image has one source and no tail. Keep the separate path guide local; a user-facing first-frame action should upload only S01-first-frame.png.
- Describe one short smooth curve toward the upper right with a final stop. Exclude a camera move, branching path and extra emitters so the source and residual marks can be reviewed separately.
- For a future clip, follow the solid source frame by frame, then inspect positions it has already passed. The trail should follow behind rather than appear ahead of the source or become a chain of solid balls.
- Review after the source stops. Older trail portions should keep fading while the single endpoint remains; a bright final streak that never weakens fails this requested ending.
Prepare one manual generation attempt
Use the current MiniMax H3 base image-to-video controls. Under the currently documented site workflow, enable Add end frame to expose First Frame, upload only S01-first-frame.png there and leave Last Frame empty. This draft does not use Fast, which needs a paired input. Recheck the actual available controls and credit estimate before any manual submission; these files neither upload themselves nor start generation. SVG files and the separate review guide stay local as design/review materials. No duration, resolution or endpoint capability is promised by this method.
Download the practice package · Blank observation sheet
Use the complete original draft
Use the supplied original dark image as the first frame, with one mint glowing point near the lower left and four muted non-emitting background markers. Keep the camera and all four background markers fixed. Move the same single solid light center along one short smooth curve toward the upper right, then stop. A soft temporary trail forms only behind positions the source has already passed. Older parts of that trail gradually become weaker than newer parts nearer the moving source. Keep exactly one solid emitter; do not leave a row of copied solid light balls, create a branching path, draw a permanent line or place the trail ahead of the motion. After the emitter stops, the old trail continues fading until only the one endpoint light remains. Do not cut or replace the background to hide the fading. This is an untested visual-effects request, not a physical particle simulation, exact lifetime or frame-by-frame opacity guarantee.The copyable generator draft is the English version; the paired Chinese draft is included for review.
Inspect the actual result in sequence
Do not fill a pass from the input or from the intended ending. Enter observations only after examining actual result frames. The downloadable sheet has empty observation and result fields.
- Only one solid emitting center exists and its position can be followed continuously.
- The four muted background markers stay fixed and do not become extra lights.
- A trail appears behind already passed positions, never in front of the moving source.
- Older tail sections weaken rather than accumulating as a permanent solid line.
- After the source stops, residual trail portions continue fading instead of leaving solid duplicates.
- The ending keeps the single stopped emitter and stable background without a cut.
Repair one failure without changing the task
- If the trail becomes several solid balls, change only the one-emitter clause and distinguish soft residual light from source copies.
- If the path appears in advance, change only the order sentence: residual marks form after the emitter has passed each position.
- If a permanent line remains, change only the ending to continue fading after the source stop; do not make the whole scene fade to black.
- If the background pans with the light, restate only the fixed markers and camera, then inspect source movement relative to those markers.
Save the ending and choose the right next task
Keep notes for moving-source identity, older tail weakening and the post-stop interval. A static endpoint light alone does not show whether a trail formed and faded correctly.
No H3 task, rendered particle system, pixel-accurate opacity schedule or measured persistence was produced. This is a proposed original effect with blank result fields.
A dust-clearing task leaves a persistent cleared path behind a contacting tool; here the residual light must vanish and there is no contact tool. A moving shadow belongs to a receiver, whereas this temporary tail follows one emitting source.
