Transparent object and background: inspect a small camera-slide parallax

01Prepare the inputs

1. Use a clear empty vessel with an unobstructed rim and base. The supplied tumbler has no liquid, logo or printed pattern, keeping the optical relationship readable.
2. Place a simple background pattern at a visible distance behind the vessel. The original input uses broad vertical color bands rather than fine lines or text.
3. Keep some of each band visible outside the glass as a comparison reference. Content through curved glass may be displaced or distorted; it should not be required to match the outside image pixel for pixel.
4. Plan a tiny horizontal camera slide, preserving the table contact and vessel orientation. Large travel reveals unsupported rear geometry and makes distortion hard to separate from generated changes.

02Prompt and procedure

Copyable prompt

Start from the uploaded empty clear tumbler in front of the broad vertical background bands. The tumbler remains fixed and upright on the tabletop. The camera slides slowly a very short distance to the right at the same height. The background bands shift coherently with the changing viewpoint, both outside the tumbler and as seen through its transparent walls; the view through the curved glass may be gently displaced and distorted but remains recognizable as the same background. Keep the rim, base and wall thickness coherent, with no liquid, frosted filling or new interior pattern. Stop the camera and hold. Fixed light, no glass rotation, no background animation, no text.

1. Establish the outside reference

   Locate a broad band visible beside the vessel and another visible through its middle. Keep those identities in the brief; the source should support comparison without relying on a tiny printed label.

2. Move the camera alone

   Ask for a tiny rightward translation at constant height. Keep tumbler and background stationary in the scene, so the viewpoint change is the sole reason their projected relationship changes.

3. Inspect the wall crossing

   Follow one band as its visible region approaches a side wall. A displaced or distorted image through the glass is reasonable, but it should not become unrelated colored material painted inside the vessel.

4. Hold and compare rim/base

   At the ending, inspect rim ellipse, lower edge and table contact as well as the background. If the glass becomes opaque or its outline deforms, reduce only the camera travel before adding lighting effects.

03Check the result

• The empty tumbler stays upright with a continuous tabletop contact.
• The rim and base remain connected by coherent transparent side walls.
• The vessel does not turn, slide or acquire liquid.
• The same broad background bands remain identifiable outside and through the glass.
• Internal background movement stays coherent with the small viewpoint change, allowing curved-glass distortion.
• No frosted filling, painted inner pattern or unrelated scene appears inside the vessel.
• The ending holds after camera motion stops without band crawling or rim drift.

04Troubleshoot and finish

Finish with a still clear vessel and recognizable bands behind it. Save paired inside/outside crops and the rim/base check; report visual continuity without claiming exact optical reconstruction.

05Download the practice files

• Original illustrated practice input ↓
• Editable original source SVG ↓
• English task brief ↓
• Chinese task brief ↓
• Bilingual inspection sheet (blank results) ↓
• English practice instructions ↓
• Chinese practice instructions ↓