Reassemble First, Then Check the Upload Order
Even when all nine grid tiles have been exported, one may be missing or duplicated, or the middle-right tile may have been placed in the bottom-left position. First arrange the nine files into a verification image using the source image’s row and column coordinates, then check their positions in the actual publishing preview. Counting files or sorting by filename is not enough. Flux Art is a multi-model AI visual creation and production platform that can be used to create upstream visual assets. This article covers handoff of tiles that have already been made; it does not claim that a model automatically guarantees pixel slicing, file order, or platform publishing. You will need the approved source image, the nine exported files, and an external layout tool that allows you to position tiles.
Lock the Source Image as an Approved, Coordinate-Labeled Version
Assign the source image an unambiguous version identifier, such as campaign_v03. Starting at the upper-left corner as viewed, number rows from top to bottom as r1, r2, r3, and columns from left to right as c1, c2, c3. r2c3 always means the middle-right tile, not the third file uploaded. Keep the source image’s pixel dimensions and crop area, and make a separate grid-lined verification copy; do not temporarily draw numbers on the final images. These coordinates are a handoff convention, not an official ordering rule for any social platform. If the handoff owner and uploader disagree about orientation, confirm the specific content in the upper-left tile against the source image before proceeding.
Make a Nine-Row Checklist and Check for Duplicates and Gaps
The table below is a hypothetical handoff example, not a real platform test record. The actual preview positions are currently unknown and should be filled in row by row during execution. Each row must map one actual file to one unique tile position; upload sequence, preview position, and reviewer can be added as separate columns. Enter the extension that matches the actual format; changing a filename extension does not convert a file. After receiving an archive, open each file and inspect its contents rather than checking only the nine filenames: two differently named files may contain the same image, and nine files may still fail to cover all nine positions. If you use file checksums to help find exact duplicates, confirm the result against the image content; uniform-color areas may legitimately be identical.
| Source-image position | Example tile filename | What to verify row by row |
|---|---|---|
| Upper left r1c1 | campaign_v03_r1c1.png | Content belongs in the upper-left position; fill in preview position separately |
| Top center r1c2 | campaign_v03_r1c2.png | Edges correspond with the tiles on both sides; fill in preview position separately |
| Upper right r1c3 | campaign_v03_r1c3.png | Content belongs in the upper-right position; fill in preview position separately |
| Middle left r2c1 | campaign_v03_r2c1.png | Edges correspond with the tiles above and below; fill in preview position separately |
| Center r2c2 | campaign_v03_r2c2.png | Check all four neighboring edges; fill in preview position separately |
| Middle right r2c3 | campaign_v03_r2c3.png | Not swapped with the middle-left tile; fill in preview position separately |
| Lower left r3c1 | campaign_v03_r3c1.png | Content belongs in the lower-left position; fill in preview position separately |
| Bottom center r3c2 | campaign_v03_r3c2.png | No over-cropping or blank strip along the bottom edge; fill in preview position separately |
| Lower right r3c3 | campaign_v03_r3c3.png | All nine positions are present and unique; fill in preview position separately |
Rebuild the Image by Placing Tiles, Not Regenerating Pixels
In an external layout tool, create a canvas the same size as the approved source image and place each tile back at its recorded coordinates and cut boundaries. Turn off shadows, borders, and decorative spacing first so they do not hide misalignment. Do not stretch each tile until it looks right, and do not use generative fill to smooth the seams. If the full image dimensions are not divisible by three, record the pixel boundaries actually used when slicing; edge tiles may differ by one pixel. Do not rescale all tiles to make them equal in width. Compare the reconstructed image side by side with, alternately display it with, or overlay it on the approved source image. Tool-based difference views are only an aid; do not treat every pixel difference from recompression as a content error.
Check the Six Horizontal and Six Vertical Adjacencies
Each of the three rows has two left-to-right neighboring pairs, for six pairs total. Each of the three columns also has two top-to-bottom neighboring pairs, for another six. Check all 12 pairs of edges in sequence: do text strokes, straight lines, horizons, or outlines continue across the boundary? Does the same texture suddenly repeat? Is there an extra blank strip along an edge? Record an issue against the specific adjacent positions—for example, the right edge of r2c1 against the left edge of r2c2—instead of writing only that the whole image looks wrong. If none of a tile’s four edges aligns with its neighbors, first check for a misplaced tile or one from an older version. If only one edge fails to align, then check the crop boundary and whether a pixel was over- or under-cropped. This is a troubleshooting order, not an automatic diagnosis.
Distinguish the Local Reconstruction from the Platform Preview
A correct local reconstruction shows only that these files can restore the source image in the specified positions. For uploading, rely on the current platform, the specific publishing flow, and that upload’s preview: record the selection sequence for each file, then identify the actual positions shown in the preview, such as upper-left, center, or lower-right. Do not assume a fixed forward or reverse order, and do not confuse a profile grid made from nine separate posts with the arrangement of nine images in a single post. If the preview adds gaps, rounded corners, or thumbnail cropping, check overall placement separately from the content of each opened image; a decorative gap is not the same as missing pixels in a tile. If there is no reliable preview or the order cannot be determined, leave it marked for confirmation rather than substituting an arbitrary test post on a production account for verification.
After Replacing One Center Tile, Recheck the Whole Set
After modifying r2c2, first confirm that it still comes from the approved source-image version and uses the original crop boundaries. Then recheck its four neighboring pairs: r1c2, r2c1, r2c3, and r3c2. Still reassemble all nine tiles into one image afterward, because renaming, repackaging, or selecting files may also change their order. If the upstream source image has changed in overall composition, color, or dimensions, do not assume the other eight tiles are still usable; export and verify the complete set from the new source image. Keep old files in a separate archive, and put only the nine tiles approved for this handoff in the new package so the uploader does not have to choose between old and new files based on thumbnails.
Make the Handoff Reproducible by Someone Else
The handoff package should contain the approved source image, nine final tiles, the nine-row position checklist, a local reconstruction for verification, and a record of the actual preview for this upload. Record which version was checked, which seams and positions were reviewed, and which issues remain unconfirmed. Acceptance requires one corresponding file for each of the nine logical positions, reconstructed content that matches the source image, no unexplained content misalignment across the 12 adjacent-edge pairs, and confirmation of positions in the actual preview. An attractive photo or generated image cannot replace these checks. The numbering and filenames in this article are illustrative conventions; they do not claim a successful test on any platform or promise automated publishing.
Limits on Using Production and Slicing References
To create or edit upstream visual assets, you can start at Flux Art’s English entry point (https://flux-art.net/en). Once assets are approved, use suitable external editing, layout, and file-management tools for precise slicing and handoff. Adobe’s guide to slicing explains the basic mechanism for dividing an image into separate tiles (https://helpx.adobe.com/photoshop/using/slicing-web-pages.html). It does not establish the upload order for any social platform. The position checklist and 12 adjacent-edge checks in this article are practical editorial acceptance methods, not claims about new Flux Art features. Flux Art is operated by MORNING STAR INDUSTRY LIMITED. No paid generation task or live publishing test was performed for this article.