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When rendering as a mesh, Liquid Particles are shaded by a material assigned to the Liquid Simulator object. However, secondary effect particles such as Foam, Splash, Mist and WetMap particles must be shaded using the Phoenix Particle Shader. Simply create a Particle Shader object, and add the Liquid Simulator to it. The Particle Shader can then read the cache data loaded by the Simulator, and shade the particles shade a specified Particle System as either Points, Bubbles, Cellular, Splashes, or Fog, depending on the mode you select. |
For even more advanced control over the shading, you can use the Phoenix Grid Texture. It reads from the simulation’s Grid Channels to generate a procedural texture, which can then be used to shade the simulation wherever colors are needed.
It can also be plugged into the texture slots of a material. For example, if you want to mix together liquids with multiple RGB colors emitted from different Liquid Sources, the Grid Texture can be used to read and transfer the RGB colors to the Liquid mesh's material for shading.
Similarly, a Phoenix Particle Texture can be used to read particles and color their positions. When used to read WetMap particles, it can act as a mask to blend between two materials, for example, a wet material and a dry surface material. This way, geometry covered by WetMap particles can appear wet, and the rest of the geometry can appear dry.
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Parameters
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The proper value for the Isosurface Level parameter depends on the numerical range of the surface channel. For example, Phoenix liquids are kept in the range of 0 to 1. A value of 0 means there is no liquid in a certain voxel, and a value of 1 means the cell is 100% full of liquid. Values in between indicate a certain mixture of air and liquid. For such cache files, an Isosurface Level value of 0.5 is best for visualizing the surface between the air and liquid. Imported caches from Houdini, on the other hand, use positive and negative values to indicate whether a voxel is inside or outside the liquid volume, so a correct "halfway" Isosurface Level value would be 0.0. Please check the Grid Channel Ranges page for information about other grid channels.
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Ocean
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Anchor UnderwaterGoggles UnderwaterGoggles
Example: Underwater Goggles
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Mesh Smoothing
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Motion Blur
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Displacement
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