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When you take a look at the "Mesher" object you will recognize three several "Vertex Maps" tags representing the fluid's velocity split into X,Y, and Z componentschannels:
- The "Mesher" object's "Channels" tab provides even more possibilities: "Speed", "Vorticity", "Age" and "Weight" (see next image below).
- If you want to use "Vorticity" you have to activate → Fluid > Fluid > Compute Vorticity before the simulation, otherwise the channel will not be available.
- The "Weight" channel is only available if the simulations contains at least two emitters or fluid containers, and requires a slightly different →workflow.
- The "Speed X|Y|Z" vertex maps cannot be adjusted manually.
The complete selection of channels with the "Smoothing Length Scale"
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value to blend materials.
Applying Vertex Maps to Materials
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- Click on the white square to open the effect shader's dialogue.
- Drag one of the mesh node's vertex map tags onto the “Vertex Map” slot, for example ""speed".
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Adjusting the
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Vertex Maps
Render an image to see the effect – a preview is not possible. If the result does not meet your expectations increase or decrease Mesh > Channels > Channel name > Min and Max values, and change "Smoothing Scale Length" to blur the vertex maps. All mesh areas with channel values
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