Exporting still frames via comp.saveFrameAs previously flattened the
rendered frame against the composition background color, stripping
the alpha channel. Single still frames queued in the Render Queue also
defaulted to an RGB-only PNG sequence output module.
Preserve straight alpha by default in comp.saveFrameAs (while honoring
transparent: false if requested), and set TemplateSlot::Still to default
to 'PNG Sequence with Alpha'.
Fixes#1815
Problem: After Effects 26.3 copies the current composition frame to the
system clipboard; EffectCraft could only write it to a file (Save Frame As).
Fix: new command comp.copyFrame {comp?, time?, scale?} renders the frame as
Save Frame As ▸ File does and emits Event::CopyImage (pixels not
serialized); the egui frontend puts it on the clipboard after checking the
buffer size. In the Composition menu (translated) and the viewer's context
menu; drivable by id over the control channel / MCP.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
The EXR sequence writer and comp.saveFrameAsExr clamped colour to 0..1 before the sRGB decode, so a 32 bpc project lost every over-range value. The lower bound stays at 0 and alpha stays clamped. Tests cover Rgba and Rgb sequences and saveFrameAsExr.
Kushagra Kumar
MarekSpodBiedry
vangel76andClaude Opus 5.5
MindlessRuff
Brandon ThomasandClaude Opus 5.5