How do you animate a sword slash effect with the sword animation in blender then use it in roblox?

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#1

My team just doesn’t know how to do this. It would be great if someone could explain it.

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#2

Well I mean, you could use the easy way out and attach a trail to the sword’s blade.

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#3

I agree. A particle effect following the tip of the blade would be impressive, but I think most games cheat. I think most animators add a generic pulse coming out of the character. That could still be a particle, though larger(?)

I don’t know that blender can do this. I have seen nothing but one action come out of the fbx file. I’d love to be wrong.

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#4

Ah well it was just out of curiosity because vfx effects can be animated in blender so I don’t see why the slash effect can’t be animated?

#5

It’s not the craziest idea out there, so maybe have your team just tackle it with basic principles? Treat it like another part of the sword mesh.

You will need a minimum of:

  1. A vfx “mesh” in blender, attached to one or more bones. I’d point out that you probably are not R15 compatible if you use anything other than left hand or right hand to animate the vfx.
  2. Animated with an action.
  3. Exported in an fbx file with a working rig. (This has been a pain for me, but I use a custom rig)
  4. Imported and fixed in Roblox (blender exports are not fully implemented, and Roblox only uses the color mapping, not the full texture)
  5. Script to hide the vfx when not in use.

I found this quick tutorial on making a vfx mesh (step 1). They did not animate it.

Roblox | How to make VFX in blender and export to Roblox [Tutorial] - YouTube

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