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Creating a large scale explosion using FumeFx

By Vikas Nagolkar
Web: Open Site
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Date Added: 11th April 2014
Software used:
Misc

The Simulation sub-tab

You'll need to change the following parameters in the Simulation sub-tab:

o Simulation sub-tab parameters:
• Solver: Conjugate Solver (Architectural Solver has not yet been included in FumeFX)
• Quality: 9
• Maximum Iteration: 120
• CFL Condition: 5.0
• Maximum Simulation Steps: 1.0
• Advection Stride: 2.5 (produces smaller curls)
• Time Scale: 0.85
o System Simulation sub-tab parameters
• Gravity: 1.0
• Vorticity: 1.0
o Turbulence Noise
• Scale: 1.0
• Frame: 12.0
• Details: 5.0
• Offset: 0.0
o Blocking Sides system
• X Axis = NONE
• Y Axis = NONE
• Z Axis = -Z Axis.

Now let's move towards the Fuel sub-tab from the Simulation tab. This is one of the most important tabs.
• Fuel Buoyancy: -0.1
• Ignition Temperature: 100.0
• Burn Rate: 5.0
• Burn Rate Variation: 0.5
• Heat Production: 10.0
• Expansion: 3.0
• Fuel create smoke: CHECK BOX ON
• Smoke Density: 5.0 (much denser smoke)

1859_tid_5.jpg
 
Some of the settings to change in the Simulation tab

The Render tab

Let's move to the Render Tab – we don't want any extra details like Fluid Mapping and Wavelet turbulence. Again, the Render tab contains a set of main sub-tabs. Here, I'll note the settings for the tabs we'll be working in.

o Rendering Parameters
• Step Size: 5.0%
o Fire
• Fire Color: 0.6
• Fire Opacity: 1.0
• Check the screenshot below for the shader settings
o Smoke
• Ambient Color: R=26, G=26, B=26
• Opacity: 22.0
• Check the screenshot below for the shader settings
o Smoke Shader Values and RGB Colors
• Key 1: Position (0.00) R=7, G=3, B=3
• Key 2: Position (48.38) R=137, G=120, B=120
• Key 3: Position (100.00) R=27, G=27, B=27
o Fire Shader Values and RGB Colors
• Key 0: Position (0.00) R=58, G=21, B=3
• Key 5: Position (2.10) R=255, G=108, B=0
• Key 1: Position (4.57) R= 1, G=0, B=0
• Key 3: Position (7.43) R=144, G=76, B=3
• Key 2: Position (9.33) R=34, G=11, B=0
• Key 4: Position (52.00) R=0, G=0, B=0
• Key 1: Position (100.00) R=0, G=0, B=0

1859_tid_6.jpg
 
The settings used in the Rendering Parameters tab




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