ASC Projection
==============

Summary
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Render projections (e.g., DRRs, overlays) from an ASC for visualization or registration contexts.

Compatible data
----------------
- Exactly two inputs: one ``AnatomicalStructureCollection`` and one ``SharedImageSet`` with modality XRAY.

Input
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- ASC, volume image(s) for rendering.

Output
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- 2D projection image(s) and overlays.

Workflow
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1) Select an ASC and volume, and start the algorith.
2) Use the Projection controller to configure intrinsics/pose; render.
3) Review overlays in the viewer; adjust as needed.