| Note |
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| This feature is part of RealFlow | Cinema 4D 2.5 and will be available soon. |
In simulations with two more more fluids or emitters RealFlow | Cinema 4D tracks the distances between the particles and creates a weight map. These weight maps can be used to render a blending effect for differently coloured fluids. The workflow is pretty much the same as with → channel vertex maps, but there are a few things to consider.
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Adjusting the Weight Maps
The blending effect can be previewed – even at meshing time – when you click on one of the vertex maps. If the result does not meet your expectations increase or decrease Mesh > Channels > Weight > Min and Max values, and change "Smoothing Scale Length" to blur the vertex maps (requires re-meshing!).
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If you are not sure which values to enter enable the weight property's "Auto" mode and you will see the current lowest and highest values. These values can be used as references. Yiu can alos expand the "Weight" parameter and adjust colours with a gradient.
"Smoothing Scale Length" ranges between 0 and 1 (0 = no smoothing, 10 = maximum) and helps to avoid flicker and improve the transition between the colours/materials.
Annotations
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Working with More Than 2 Fluids & Maps
There are some things to consider with more than two weight maps:
- The maximum number of weight vertex maps is 9.
- In scenes with three or more maps, the last material must not have a vertex map (weitght0) applied, because otherwise you will get a transparency effect in some areas.
Anotations
- RealFlow | Cinema 4D's meshing engine is not responsible for the colour blending effect itself – it only provides an Alpha/vertex map.
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