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Nodes · 3D

Render3D

3Dv1core

Overview

Renders a 3D scene into the comp: point scene/camera at your 3D branch and a Camera3D, and the CG composites over the bg input as a premultiplied element. aux adds depth/N/P/id channels.

How to

How-to

Name the scene branch and the camera; set the format; wire a bg to comp over.
mode = uv renders texture space; aux adds data layers; lightgroups splits the beauty per light.

Inputs

Input	What it takes
bg	a clean background to reveal (optional — without one the node estimates it and says so)

Outputs

Output	Type
out	Image

Parameters

Parameter	Type	Default	What it does
slot	Int	0	The internal channel this render publishes on. Auto-assigned — leave it.
format_width	Int	1920	Render width in pixels.
format_height	Int	1080	Render height in pixels.
scene	Text		The NAME of the 3D node to render — usually your Camera3D or the top Merge3D. Everything upstream of it is in the scene.
camera	Text		The NAME of the Camera3D to render through. Empty = auto-frame the scene.
mode	Choice	camera	camera = render the scene through a camera. uv = UV-stabilize: the tracked model's texture-space view of its plate — the surface frozen, so downstream paint/clone lands on a non-moving target. In uv mode set `tracker`; scene/camera/bg are ignored. `camerauv`
tracker	Text		uv mode: the NAME of the BS_GeoTracker to stabilize. Its baked track is the pose, its geo input the mesh, its src input the plate — run ▶ Track on it first.
atlas_res	Int	1024	uv mode: the square texture-space output resolution. Confidence rides in alpha (facing × visibility × in-frame), exactly like the built texture.
aux	Choice	none	Extra channels beside rgba: depth (camera-space distance), or full = depth + N + P + object id. Data-grade — never filtered or colour-managed. `nonedepthfull`
lightgroups	Bool	false	Publish a lightgroup.<light> layer per scene light — each light's isolated contribution, gradeable downstream (regrade the key without touching the fill). The layers sum to the beauty. Costs one extra render per light; capped at 8.
samples	Choice	1	How many sub-steps the effect integrates over. More is smoother and slower. `14816`
disabled	Bool	false	Bypass: the node passes its first input through untouched (D in the graph). The knobs keep their values for when it comes back.
label	Text		A note shown under the node in the graph — what this node is FOR. Never affects the render or the cache.
hide_input	Bool	false	Draw the node without its input wire — a tidy graph for a node whose source is obvious (a Dot, a viewer tap).

See also

The 3D system — How to put geometry, cameras and volumes in the comp — without becoming a 3D application.
Unreal — How to get Unreal's pixels into the comp, live or rendered.