Select the PhoenixFDSim1 node and in the Attribute Editor, open the Grid tab. Scroll down to the Grid Adaptation section and note that the Adaptive Grid is set to Temperature / Liquid. In this setup, the Phoenix Simulator will track the Temperature channel and whenever the temperature value of a voxel close to the boundary of the simulator goes past the Threshold parameter value, the size of the grid will increase. Keep in mind that the Threshold value depends on the channel being tracked by the Adaptive Grid parameter. Smoke, for example, is in the range [ 0, 1 ] so instead of 1300, the Threshold should be set to 0.01 or lower. You can check the range of any exported channel from the Preview tab of the Simulator. |
For a more detailed explanation of the Adaptive Grid parameter, please check the Simulator → Grid documentation. |