Background Replacement – Two Strategies

Two complementary approaches to background replacement, each with two examples.

Sources: woman with cat (@image1)

Sources: futuristic plaza (@image2)

Strategy 1 – Adjust background lighting to match subjects

[META-PROMPT]

Replace the background of @image1 with the scene from @image2.
Then adjust the new background (brightness, contrast, color temperature, light direction and intensity) so that it harmonizes with the existing illumination of the subject in @image1.
Keep the subject completely unchanged.

Before generating, analyze @image2 and explicitly identify elements that should be preserved (foreground textures, prominent features, materials).
Include those preservation instructions in the prompt.

[/META-PROMPT]

1. Texture priority Replace the background with the futuristic city plaza. Prioritize texture preservation: keep the turquoise mosaic patterns and gold inlays clearly visible in the foreground flooring, retain the organic white structures and reflecting pools. Adjust lighting only as needed to harmonize. Keep all subjects completely unchanged. Hyper-realistic.
2. Scale & architecture emphasis Replace the background with the futuristic city plaza. Emphasize the grand scale and organic architecture, place the subjects naturally in the plaza with matching soft daylight. Preserve white marble, gold accents and any visible turquoise patterns. Keep all subjects, poses and identities completely unchanged. Hyper-realistic.

Strategy 2 – Relight subjects to match background

[META-PROMPT]

Replace the background of @image1 with the background from @image2.
Then intelligently relight and color-adjust the subject in @image1 so that her illumination, shadow direction, light intensity, color temperature and overall lighting mood perfectly match the new background.
Keep the subject’s identity, pose, clothing and details intact.
The final result should look like the subject was originally photographed in the new environment.

[/META-PROMPT]

1. Strong right-side relight

Replace the background with the futuristic white-and-gold city plaza. Intelligently relight and color-adjust all the subjects so their illumination, shadow direction, light intensity, color temperature and overall lighting mood perfectly match the new background’s strong right-side sunlight. Cast clear shadows consistent with light coming from the upper right. Keep every subject’s identity, pose, clothing and details intact. Hyper-realistic.

2. Directional sunlight match

Replace the background with the futuristic city plaza. Relight the entire group to match the background: strong directional sunlight from the upper right, warm highlights on the right side of faces and bodies, cooler shadows on the left. Preserve identity, pose, clothing, the cat and all details exactly. Natural composite as if photographed in place. Hyper-realistic.

Next : Hyper-Future Cities — long city descriptions, free palettes, documentary realism
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