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With PLA-enabled objects, RealFlow | Cinema 4D has to recalculate the internal collision geometry with every single simulation step. Especially with small → "Cell Size" values PLA might be a simulation's bottleneck.
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- To avoid this, activate the → "Collider" tag's "Continuous Collision Detection".
- By default the auto mode is enabled, and RealFlow | Cinema 4D will decide automatically, if the collision object requires "Continuous Collision Detection".
- Collision detection is computationally more intensive, and simulation take longer.
- In some cases the automatic detection fails, and you have to disable enable "Continuous Collision Detection" manually.
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If this is the case the problem can be fixed by increasing the number of → simulation steps (aka "substeps").
Why I can see the wetmap in the render, but not in the viewport?
Open the → material panel and go to the "Editor" section. Then enable "Animate Preview...".
I have activated the "Animate Preview..." option, but still I cannot see the wetmap. Why?
→ Wetmaps Wet-dry maps require an UVW Tag attached to the object. You will get this tag automatically when you make your object editable.
The wet map is distorted, mirrored or repeated. How can I fix this?
→ Wetmaps Wet-dry maps require proper UVW coordinates and this is within your responsibility. RealFlow | Cinema 4D does not perform any changes on UVWs or plausibility checks.
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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 or more).