Visualizes the flow of the fluid in the pipe. Drawn when (fluid_temp - fluid_min_temp) / (fluid_max_temp - fluid_min_temp) is less than or equal to 1/3 and the fluid's temperature is below FluidPrototype::gas_temperature.
Visualizes the flow of the fluid in the pipe. Drawn when (fluid_temp - fluid_min_temp) / (fluid_max_temp - fluid_min_temp) is larger than 1/3 and less than or equal to 2/3 and the fluid's temperature is below FluidPrototype::gas_temperature.
Visualizes the flow of the fluid in the pipe. Drawn when (fluid_temp - fluid_min_temp) / (fluid_max_temp - fluid_min_temp) is larger than 2/3 and the fluid's temperature is below FluidPrototype::gas_temperature.