Fuel – Enables or disabled rendering of fuel.
Color Source – User can choose between two options: Gradient and Grid. If using Gradient option, fuel will use Color Gradient for shading. Grid option means that fuel will get colors from the Color channel. In that case Color swatch will be used as a filter color.
Color - Fuel can only be a solid color.
Opacity - Fuel opacity depends on the amount of fuel still left to burn, and is multiplied by this parameter.
Visual Falloff - This value controls how far light can penetrate into fuel.
GI Multiplier - This option adjusts the global illumination intensity of fuel.
Cast Shadows - If on, fuel will cast shadows on the surrounding geometry and, if Receive Shadows is on, onto itself.
Receive Shadows - If enabled, fuel will receive shadows created by surrounding geometry.