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If this is the case the problem can be fixed by
- increasing the number of → simulation steps (aka "substeps")
- changing → "Volume mode" to "Shell"
- increasing → "Surface offset".
Why I can see the wetmap in the render, but not in the viewport?
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When the body's polygons are very small it might happen that you will not get any particle emission. To fix this, increase the "Fluid" container's → "Resolution" to create more particles. You may need very high settings (> 100, 200 or even more).
Are RealFlow | Cinema 4D particles able to influence Cinema 4D dynamic bodies (rigid and soft bodies, cloth)?
No, RealFlow | Cinema 4D do not change the motion or shape of Cinema 4D dynamic bodies, but they are able to interact with them in terms of collision.