RealFlow | Cinema 4D is able to read an object's UVW coordinates for applying textures or creating wet-dry maps. If the UVW coordinates are wrong or not present you will not get the expected results and the calculation of wet-dry maps might fail. Here is some more information on them:
- You have to assign a "Collision" tag to the object you want to make wet.
- The tag provides the parameters to control the map's quality and drying effects.
- RealFlow | Cinema 4D's wet maps are always squared.
- The maps are not displayed at simulation time. If you want to see them you have to render an appropriate frame.
- Wet maps can be cached together with the particle simulation, then post-processed, and reapplied.
Here are the required steps:
- Assign a "Collision" tag to an object.
- Make sure that the object has proper UVW coordinates.
- Create a material and select the "Color" channel.
- From "Texture" choose "RealFlow WetMap Shader".
- Attach the material to the object.
- Simulate and render to see the effect.