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Cannot simulate physics on BP Skeletal mesh

For some reason I cannot get a skeletal mesh component within a blue print to simulate physics. This is my setup inside the level blueprint:

alt text The weird thing is if I just place the skeletal mesh in the world, get a reference to it and simulate physics it does work. I also re-created this in 4.7 with the 3rd person template and it doesn't work at all there either.

Is there some other way to simulate physics on a skeletal mesh inside a blueprint? Also checking or unchecking "simulate physics" on the skeletal mesh inside the BP doesn't make a difference. I also tried creating a custom event inside the BP and then setting the simulate physics there but that didn't work either.

Product Version: UE 4.8
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asked Sep 29 '15 at 10:20 AM in Blueprint Scripting

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avatar image Sean L ♦♦ STAFF Sep 29 '15 at 02:10 PM

Hello TorQueMoD,

Have you ensured that your mesh has collision? This could be the issue, if that's not the case.

Have a great day,

Sean Flint

avatar image TorQueMoD Sep 29 '15 at 05:46 PM

By collision for a skeletal mesh you mean a Physics Body created in PHAT? Yes it has one of those.

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Hello TorQueMoD,

To clarify, I meant that in your BP_Asian Ragdoll, if you go to the viewport and select the Skeletal Mesh component, does it have a collision preset? I've created a test blueprint using the base SK_Mannequin that is included in the Third Person Template and I was able to get it to simulate physics using your setup, but I had to first add a collision present in the Details panel of my blueprint. Hope that clarifies what I meant.

Have a great day,

Sean Flint

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answered Sep 29 '15 at 05:57 PM

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Sean L ♦♦ STAFF
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avatar image TorQueMoD Sep 29 '15 at 06:07 PM

Oooh! I didn't even see that dropdown list! Yes thank you that fixed the issue :)

avatar image Speuzer Jan 12 '16 at 01:38 PM

I had this same problem, fixed by updating collision preset.

Placing a skeletal mesh in the level and checking Simulate Physics works, but dropping that same mesh into a blueprint and turning on simulate physics did not.

I didn't think to look at the Collision Preset like OP, because I didn't expect default properties to change based on if its placed in a BP or a level.


avatar image Imperium2 Feb 14 '17 at 12:07 PM

I had the same problem, solved it by not executing it on server.

avatar image Motanum May 21 '18 at 04:43 PM

Just the issue I was having! Just to make things clearer for future selves. Is this bit for the skeletal Mesh Component. alt text

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