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Valentin KleinandClaude Opus 5.5
017d1aea1c
New Perspective Crop tool in the Crop flyout (C): drag a box or click four
corners, drag corners independently onto a skewed object, perspective grid
(Show Grid), Enter commits, Esc cancels. W/H/Resolution come from the Crop
tool's fields (Front Image, Clear), or the quad's mean side lengths.
Engine: image.perspectiveCrop {corners, width?, height?, resolution?,
interpolation?} maps the quad onto an upright canvas through the
quad-to-rectangle homography (Heckbert's square-to-quad map, inverted):
every raster layer, mask, alpha channel and the Quick Mask, one undo step.
The Background stays opaque over the background colour; type, shape, fill
and smart object layers are rasterized first; vector geometry follows the
nearest affine map. Non-convex, self-crossing, counter-clockwise or
degenerate quads are refused with an error.
algo: warp_surface_clipped bounds the per-tile warp by the new canvas even
when a layer reaches past the map's horizon; convex_quad, quad_size,
quad_to_rect.
Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com>