i am trying to make a a navigable kayak but it keeps sinking, i tried changing the proton points several time change their sphere tinker with bouncy coefficient and the mesh properties like angular dampening but it keeps sinking does anyone have a solution.
the red spheres in the images are the protoons points
i am tying to make an obstacle avoidance game when the user ride a kayak and avoid obstacles is should i continue using bouncy system or there is better approach
Hi Mo, Let me help you with this. To help you properly with your sinking kayak issue in Unreal Engine, could you please clarify a few things:
Are you using Chaos Physics or the default PhysX system?
Is your kayak a single mesh or composed of multiple parts?
Are you using a buoyancy plugin (like Water plugin with Buoyancy) or implementing buoyancy manually?
Do you want the kayak to behave realistically (float, tip with motion, etc.) or more like an arcade-style hover/ride?
Which version of Unreal Engine are you using?
I recommend watching several videos and forum discussions to understand more about the system.
Tutorial:
Forum:
My brain hurts, so now I need help. I’m going to start programming/animating boat mechanics through third person possession, but I can’t get the boat to float ABOVE the sealine. I even used the “buoyancy” demo blueprint object, and the sucker floats under the waterline too. (I’m using the ocean water plugin… so maybe it’s not ready?).
The first pic is a top-down view. The second is from below. And the third shows the setup for the simulation. (All assets start ABOVE the water).
[Buoyancy 03]
…
Hi there.
I am new to UE and I do have a problem with the water system as my objects do not sink into the water if I play or simulate the game. They are reacting like the water would be a solid plane. So my character can just walk over it and objects which are falling onto the water just hit the water surface, bounce off and then rest on top of the water surface just like on any other surface
[do_not_sink]
The only way I can make them sink into the water is, increasingf their mass to a hilar…
If you’re still facing challenges or have new questions, feel free to share.
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1-i am using default physx system
Adjust Physics & Mass Properly
Select your kayak mesh and ensure these settings:Simulate Physics : ON Enable Gravity : ON
Mass : Set realistic mass (e.g., 30-50 kg for a kayak)Linear Damping : Set between 1.0 - 3.0Angular Damping : Set between 2.0 - 5.0
Double-check your kayak’s collision shape
Quick Buoyancy Testing
To quickly identify the issue, temporarily create a simple cube with:
Buoyancy Component Properly positioned pontoons
Low mass (10 kg)
Test if this cube floats properly.
If it floats, your issue is with the kayak mesh or pontoon setup.
If it sinks, re-check the Water Body settings (collision, buoyancy).
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