Lighting Slap Comp Template

🚀 Lighting Slap Comp Template for Nuke – GitHub Release
🔗 GitHub: https://github.com/pramodgurugari/Slap-Comp-Template

🧩 Template Structure – Lighting Slap Comp (Nuke)
This template is organized into layered, modular sections, allowing artists to work per-element (FG, MG, BG, FX, etc.) and quickly toggle between raw render vs slap comp output.

🔁 1. Global Flow Control
LGT SWITCH SYSTEM (Core of Template)
Central controller: LGT SWITCH NODE
Drives all LGT_SWITCH## nodes across the script
Modes:

NON_Edited → Direct render pass-through
Edited → Full slap comp enabled
👉 This lets artists:

Compare raw render vs comp
Debug lighting quickly
Avoid breaking node trees
📥 2. Input Layer
A. CG Inputs
Character
Props
Environment
FX *etc.....
B. Live Action Plate
Dedicated Live Plate section
Plate roto support (Plate Rotos)
C. Camera Inputs
Shot camera
Matchmove camera
Reference camera setup
🧱 3. Scene Breakdown (Per-Layer System)
Each major category is split into consistent blocks:

🌍 ENV (Environment)
🧍 Character
🧱 PROP
✨ FX
🌫️ ATMOS
🖼️ DMP / Sky
Each section contains:

A / B / C sublayers
Independent processing chains
Individual LGT_SWITCH nodes
Deep + Image workflows
👉 This allows:

Per-element control
Easy isolation
Flexible for Lighting comp
🌑 5. Shadow System
CG Shadow Build
Custom shadow_mask layer

Built using:

Ground shadows

Contact shadows

Hand shadow blocks

👉 Designed for:

Fast shadow integration into plate
Non-physically accurate but visually effective slap comp
🌊 6. Deep Workflow Integration
Heavy use of:

DeepRead
DeepReformat
DeepRecolor
DeepMerge
Purpose:
Maintain depth accuracy
Allow proper layering without holdout issues
Final Conversion:
DeepToImage → converts to 2D comp
🔄 7. Per-Layer Switching System
Each asset/layer includes:

LGT_SWITCH## node
Function:

Toggle between:

Raw render
Processed slap comp
👉 This is repeated across:

ENV
Character
Props
FX
Atmos
🎨 8. Lighting & AOV Handling
AOV Contact Sheet System
Custom node:

rm_AOV_Contactsheet
Supports:

Diffuse / Specular / SSS
MultiLight AOVs
Cryptomatte
Normals / Depth / Position
👉 Helps artists:

Debug lighting
Validate render passes quickly
🌫️ 9. Atmosphere & Depth Effects
Depth-based blending
Defocus node
Atmos layer integration
Also includes:

Sphere + ScanlineRender setup → Used for HDRI / environment preview
🧾 11. Shot Info Panel
Backdrop includes fields for:

Artist
Shot Name
Sequence
Frame Range
Status
Notes
👉 Designed for:

Dailies submission
Team communication
📤 12. Output System
Outputs:
Final slap comp → Write1
AOV Contact Sheet → Write2
MultiLight breakdown → Write3
Settings:
ACES workflow
sRGB preview
Scene linear output
💡 Key Strengths of This Template
Fully modular per Render Layer

Strong deep compositing pipeline

Centralized switch system

Built-in AOV debugging

Works for:

Live action integration
Full CG shots
⚠️ Important Notes for Artists
Do not delete LGT_SWITCH nodes

Ensure:

Proper AOV exports
Deep data is available (if used)
This is a slap comp, not final comp

✅ Best Use Cases

Lighting lookdev
Shot setup
Dailies preview
Fast iterations