render_point_depth — 3D render op

Data kinds: pointsdepth

Call: import fullseye as fs; fs.ledger.render_point_depth(points, K, size, R=None, t=None) (to call the implementation directly, import match3d; match3d.render_point_depth(points, K, size, R=None, t=None); from the registry, ops3d.get("render_point_depth"))

Usage

Point set → a depth image (z-buffer; each pixel takes the depth of its nearest point). For synthesising observations and inspection samples.

> The detailed description below is the original text — the summary and the headings are translated.

`project_points(points, K, R, t)(u, v, z) を取り、round した画素 `(row=v,

col=u)`size=(H, W) 内かつ z > 0` の点だけを、遠い順に書いて近い点で上書きする

(同一画素は最小 z が残る)。点が無い画素は 0(`tsdf_from_depth / depth_to_points` が

無効値として扱う規約)。返り値 `(H, W)` float64、単位は点の座標の単位。

• 1 点 = 1 画素なので疎な点群は穴だらけになる(`mesh_to_points` で密にしてから)。splat

半径は無い。

• `K は numpy (3,3)、R/t` は省略可。

後段: `depth_to_points で戻す、normals_from_depth で法線、tsdf_from_depth`。

Background guides (the physics and conventions behind this op)

blender_interop — Blender との併用 — 形を作って fullseye で測る(軸・単位・正解データの罠)

References (sample data, literature)

• Sample-data catalog (download URLs / licences) — 2-D uses skimage.data (BSD/public domain) plus synthetic images; 3-D lists download URLs for real data sources (Stanford, PDS, …).

• Operator provenance and references — the sources of the research/methods this op family came from.

Runnable examples (verified samples that actually call this op)

sfm_reconpy -3.11 examples_3d/sfm_recon.py

Ops the type connects to (they accept depth as input)

depth_to_points · tsdf_from_depth · to_points · fuse_to_voxel · depth_to_organized_points · normals_from_depth · occlusion_edges · bearing_angle_image

Same category (render)

project_points · render_volume_projection · render_shaded · ambient_occlusion · cast_shadow · phong_shade · matcap_shade · supersample_mesh


*Provenance: match3d.py — 3D operator registry. This per-op note is generated by tools/opdocs.py md (do not hand-edit).*

© 2026 Kazufumi Furuse — Fullseye operator documentation. Licensed under Apache-2.0.