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Phantom Collision during sliding

We have a cube Actor which is sliding along procedurally generated platforms. Even though these platforms are perfectly aligned with each other, at the edge of two platforms the cube stops , like it had triggered a collision with the upcoming platform.

The cube is the simple mesh from the starter content, and has applied a physical material which settings can be seen in the images, as well as the cube's and platform's settings.

For a video of the bug see link:https://youtu.be/4RzfWJrc2GA .

The big red arrow shows the point of intersection of two platforms.

The bug doesn't happen always at the same intersection, but given enough time , it always happens. BUT of course should never ever happen: So how can we solve this problem?

Below the simple bluprint. The platform is generated dynamically upon the overlapping between the cubeActor and a collision box. The cube is added a simple impulse in order to make it slide.alt text

alt text

This is the physics material used for both the platform and the cube, with no friction. alt text

Here you can see the sequentially generated platforms which are perfectly aligned.

alt text alt text

Product Version: UE 4.19
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asked Jun 28 '18 at 08:17 PM in Bug Reports

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avatar image Jeff A ♦♦ STAFF Jun 28 '18 at 08:28 PM


We've recently made a switch to a new bug reporting method using a more structured form. Please visit the link below for more details and report the issue using the new Bug Submission Form. Feel free to continue to use this thread for community discussion around the issue.



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