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Aligning IIIF 3D Viewer with Presentation API 4 — converting legacy manifests at runtime

I aligned IIIF 3D Viewer with the IIIF 3D Technical Specification Group's Presentation API 4 draft (Scene / PointSelector / WKTSelector / PerspectiveCamera). Existing manifests authored against IIIF Presentation 3 with a project-local 3DSelector / camPos extension are funnelled through a runtime converter so the rest of the pipeline only deals with v4. This post records the diff, the conversion rules, and the implementation outline.

iiif3dpresentation-apiweb-annotation

Mirador 4.0.0 hides supplementing annotations from the Annotations panel — a `filteredMotivations` gotcha

I delivered IIIF Presentation 3 OCR text annotations with `motivation: "supplementing"`, and they showed up in Annona and other viewers but not in Mirador 4.0.0's Annotations side panel. Reverse-engineering the deployed Mirador bundle revealed that the released default for `config.annotations.filteredMotivations` is `['oa:commenting', 'oa:tagging', 'sc:painting', 'commenting', 'tagging']` — `supplementing` isn't in the allowlist. This post walks through how I found that, the `['commenting', 'supplementing']` array workaround, and the relevant spec / Cookbook references.

iiifmiradorannotationpresentation-api