Realistic Fire Simulation in Houdini 20.5 | Axiom | Karma | GPU Sim + Render

Опубликовано: 18 Май 2026
на канале: vfxhub
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Realistic fire simulation created in Houdini 20.5 using the powerful Axiom GPU solver. I have also use GPU based Karma XPU rendering in solaris. It is very strong to get quick renders along with nVedia Optix Denoiser. At last I used nuke and its upscale technique to get hires resolution output without loosing any quality. You must use OCIO aces 1.2 or higher to get similar output.

Axiom is an amazing GPU-based simulation plugin from "theoryaccelerated" available for free with the Houdini Education license. The speed and detail it delivers for pyro simulations is impressive. I strongly suggest to purchase if needed for any commercial project.

🔧 Workflow Breakdown:
🔥 Fire simulated using Axiom (GPU-based solver)
🌎 Solaris (USD workflow)
🎨 Shading & rendering in Karma XPU (GPU based)
🚀 Final quality enhancement using Nuke upscale technique (upscaled to 4k)

#Houdini #Axiom #FireSimulation #Pyro #Solaris #Karma #Nuke #VFX #CGI #GPU #houdinifx #houdinitutorial

Voxel size - 0.006 [666*750*736]
Sim Time - 30min
Render Time - 5min per frame (16-32 samples xpu render)
Total Frames - 120

Asset is from sketchfab by nick_clicks : https://sketchfab.com/3d-models/drift...

File is available in gumroad :
https://vfxhubb.gumroad.com/l/qckay
https://vfxhubb.gumroad.com/l/lmcoln

This is a showcase of the final result (not a tutorial).
If you’re interested in a full breakdown/tutorial covering:
Axiom simulation setup
Solaris lighting workflow
Karma volumetric shading
Nuke upscaling process

Let me know in the comments 👇