Realistic Fire Setup (Sparse Solver) - Rendered with Renderman - no HDA

This is a realistic fire setup with the sparse solver, it is based on temperature and flame model, you can easily use it with different scale of scenes.
The Renderman shader was used to render this scene with flame based emission color and temperature based intensity. The shader is physical based and can be used with different LUTs and can be adjusted according to the requirements of the accurate shades of temperature.
Simulation time for the grid fire is around 2 hours on 12 thread(6 Core) processor.

Key Features:
✅ Temperature-Driven Combustion – Achieve realistic fire behavior with precise control over ignition and burn dynamics.
✅ Flame Attribute Control – Customize flame height, color, and dissipation for a cinematic look.
✅ Sparse Solver Optimization – Faster simulations with memory efficiency for large-scale effects.
✅ Procedural & Artist-Friendly – Easily tweak settings for stylized or realistic results.
✅ Plug & Play Setup – Ready to use in any Houdini project with minimal adjustments.

Total Simulation Time - 2 hours (250 Frames)

Render Time - 2-4min per frame (20 seconds per frame denoise)

Core i7 9th gen

32 gig ram

GTX 1650ti