G-Tracer — simulation and rendering that never leave the comp.

What is G‑Tracer?

G-Tracer is a GPU-accelerated 3D FX toolkit built natively into Nuke — a production path tracer, pyro, particles, deeps, Gaussian splats, and volumes, all as nodes in your graph.

Why G‑Tracer?

Because the comp is where the shot gets finished. G-Tracer keeps the whole effect in one graph — no exchange caches, no round-trips to another package, no waiting on a farm to check a lighting change. The solvers and the tracer live on the GPU, iteration happens at viewer speed, and everything ships as real Nuke nodes that save with your script.

no round‑trips gpu‑resident native nodes
Demo reel

See it move.

Toolset

A full 3D FX department, as nodes.

GT_PathTracer

Path tracer

A GPU path tracer with a Principled BSDF material model — beauty and AOVs straight into your comp.

GT_Pyro

Pyro

Fire, smoke, and explosions simulated on the GPU, flowing directly into the renderer.

GT_Particles

Particle system

Emit, advect, and shade particles on the GPU — sparks, dust, and debris, art‑directed live in the viewer.

GT_Deep

Deeps

Deep renders straight from the tracer — true holdouts, deep merges, and DeepToPoints in your comp.

GT_Cryptomatte

Cryptomattes

Per‑object and per‑material ID mattes rendered automatically — pick, isolate, and grade anything downstream.

GT_Splat

Gaussian splats

Bring captured reality into the comp — load and render splat scenes alongside your CG.

GT_VDB

Volumes

First‑class OpenVDB support: farm caches or live sim output, straight into lighting.

GT_Scatter

Scattering tool

Instance geometry across surfaces and volumes — density, variation, and seed control from node knobs.

Workflow

From graph to final.

01

Bring the scene in

Geometry, cameras, VDB caches, and Gaussian splats load as nodes — straight into the graph you already have open.

02

Sim and light, live

Pyro, particles, and the solvers run on the GPU while you dial them in the viewer, with lighting responding as you work.

03

Render into the comp

Beauty, AOVs, deeps, and cryptomattes land as channels. Grade, comp, and deliver — no exchange step, no second application.

Built on proven foundations
  • CUDA
  • OpenVDB
  • Principled BSDF
  • Native Nuke nodes
Early access

Get a seat before the launch.

Beta seats are open. Tell us where to send yours — artists and studios welcome.