Will HEIC remain scalable vector artwork?+
Rendering SVG to HEIC fixes the artwork on a pixel grid. Paths and text no longer scale as editable vector objects. Fonts, linked resources, viewport, resolution and any animation time need explicit rendering choices; scripts and interactions do not become equivalent raster behaviour.
Which compression mode will HEIC use?+
HEIC commonly uses lossy HEVC; HEVC also has lossless coding tools. Actual quality, bit depth and chroma depend on the encoded profile and settings, not on the .heic extension. HEIC permits different encoding modes or container representations. Its format name alone does not promise lossless output, a quality setting or a size reduction. The future engine must choose a supported codec and sample representation; inspect the target’s compression notes below.
Are bit depth and colour values guaranteed to match?+
Source and target sample models can differ in precision, channel layout, colour space and transfer function. Lossless compression only preserves the samples actually encoded; a precision reduction or colour conversion can already change them. The future engine defines numeric mapping, orientation and colour conversion; canonical depth facts are listed below where available.
Will metadata and colour profiles be retained?+
SVG: XML metadata, title, desc → HEIC: Exif, XMP, ICC, NCLX. Which fields are copied, rewritten or omitted will depend on the future engine; retention is not implemented yet.