Problem
AI cutouts incorrectly classify transparent glass as background and remove its important edges.
Solution
Root Cause / Diagnostic:
Automated AI subject cutout tools mistake transparent glass, lenses, or liquid containers for empty background and delete them from the selection mask. The subject appears to hold an invisible or partially dissolved object, looking completely broken.
Actionable Fix:
1. Manually paint back the transparent glass boundaries using a layer mask and a soft white brush (opacity 40%–70%).
2. Isolate the glass reflections onto a separate layer set to Screen or Linear Dodge mode over the new background to preserve realistic refraction and sheen.
3. Toggle background layers to verify that glass edges, liquid levels, and specular reflections remain fully intact and solid.
Pro Tip:
Composite glass reflections on a separate Screen blending layer; this allows background colors to show through transparent glass while preserving solid reflections.
Automated AI subject cutout tools mistake transparent glass, lenses, or liquid containers for empty background and delete them from the selection mask. The subject appears to hold an invisible or partially dissolved object, looking completely broken.
Actionable Fix:
1. Manually paint back the transparent glass boundaries using a layer mask and a soft white brush (opacity 40%–70%).
2. Isolate the glass reflections onto a separate layer set to Screen or Linear Dodge mode over the new background to preserve realistic refraction and sheen.
3. Toggle background layers to verify that glass edges, liquid levels, and specular reflections remain fully intact and solid.
Pro Tip:
Composite glass reflections on a separate Screen blending layer; this allows background colors to show through transparent glass while preserving solid reflections.