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Sometimes missing collison

Hello, I have some trouble with CCD i think. Sometimes it generates overlap events but more than 50% it doesnt. I am using a projectile with movementcomponent. Where i have to look for solving this prob? Thanks in advance!

Product Version: UE 4.8
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asked Jun 21 '15 at 10:36 AM in Blueprint Scripting

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avatar image Achilleon Jun 21 '15 at 09:47 PM

We might need more information about this before you can get help. Setup you have done for your projectile and the mesh you want it to overlap etc.

Unsure how it would sometimes overlap and sometimes not though. Maybe it's not what you think it is. For example it's not overlapping events against a Capsule Shape but the Mesh so it misses sometimes. Or maybe in a special situation where collision is changed etc.

Hard to say without seeing what's happening. Even making a video about it could help.

avatar image TO.Games Jun 22 '15 at 03:58 PM

Ok here are some infos:


alt text


![alt text][3]


alt text

The victim (this i want to overlap)

alt text

The Projectilecomponents are ordered like this:


Thanks for your help!

[3]: /storage/temp/47339-porjectilemovement.png

avatar image Matthew J Jun 22 '15 at 04:49 PM

Hi TO.Games,

Can you provide a screenshot of the blueprint that is causing this projectile movement and anything related? The reason I ask is because there are many times where the movement itself is causing the issue. One problem would be if the movement is being called on tick, sometimes sweep can be ignored because it's only being checked every frame which it could technically, if going fast enough, pass through without every registering.

avatar image TO.Games Jun 26 '15 at 03:31 PM

there is no blueprint of projectile :( i am using the movement component from UE4.8 which is written in C++ i think

avatar image Matthew J Jun 26 '15 at 08:32 PM

I see. Can you provide information about the actual overlap event? It would be helpful to see the blueprint that is reacting to the overlap event to see if there may be any issues in that area.

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Hi TO.Games,

Are you still experiencing this issue? If so, I'll need you to provide me with more information related to what is suppose to happen when your overlap event is triggered as the issue may be in that section. In the meantime, I'll be setting this issue to resolved for tracking purposes but commenting will reopen the question so that we may continue.

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answered Jul 06 '15 at 09:55 PM

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