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This will essentially force the fluid to cool down only if it is emitted from a specific Phoenix FD Source with its RGB set to red. Fluid emitted from other sources and/or colored differently will not be affected by the Actionaction.
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The Voxel Tuner is a powerful tool and it will not stop you from creating expressions such as "If the Temperature is higher than 0, increase the temperature by 100". This will infinitely keep raising the temperature throughout the Simulator until the simulation explodes, so you must be careful. Note that the Voxel Tuner affects all Phoenix FD Simulators in the scene unless they explicitly exclude it. |
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When [ Edit Condition... ] – Opens the Edit Condition window. The Edit Condition window is used to construct a sequence of tests which are evaluated for every cell of the Phoenix FD Simulator, at each simulation Step. If the cell satisfies the condition, the selected Then actions are performed - Affect Grid Change Voxel Channel or Affect By Forces. Otherwise, the cell is ignored. By default, the condition is set to "Temperature > 800", therefore only those cells where the Temperature channel is greater than 800 will be affected by the specified Actionspecified action. See the Grid Channel Ranges page for more information on the channel ranges.
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Affect Grid Change Voxel Channel checkbox | tun_act_op_chan – When the condition of the Tuner passes for a voxel, you can choose which grid channel of this voxel will be changed and how:
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The Edit Condition window is at the core of the Phoenix FD Voxel Tuner. It consists of a Conditions Tree on the left and a Parameters panel for the individual elements in the tree on the right. The Affect Grid Change Voxel Channel action or the Affect By Forces action will only be executed for the cells of the Simulator which satisfy the conditions tree. The Conditions Tree is made up of the following expression types: Logic, Compare, Math, Value. Folding (collapsing) of a tree item in the view to the left will show you a simplified view of the expression. For example, collapsing the tree in the image below will change its text to "Temperature > 800.000", meaning the Voxel Tuner will affect only voxels where the Temperature grid channel is higher than 800. You can also read a simplified view of the entire condition expression in the text box below the Edit Condition... button. |
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