VR Expansion Plugin

[mordentral]

@kusogaki77;724561

Sorry to sidetrack .
I got a socket prob.

tl;dr
Custom Static/Skeletal Grippable Mesh actors aren’t oriented/positioned exactly mirrored in each hand, but the Template Gun_Base is.

What things might I need to make sure are good?

I have custom-made hands, and equippable items (all made in Blender). When I use them hands to pick up the grippable static mesh gun_base in the template, the gun orients perfectly! To be more specific, the position is just a little bit off, but it’s off identically so for each hand, which I assume means it’s because the pivot point on my hand is not the same as that on the mannequin hands in the template. That’s totally cool. The important thing here is that they are angled/oriented perfectly regardless of the hand I grab it with; the gun always faces forward exactly at the same angle.

I’m not getting same, exactly mirrored orientation on my own grippable static mesh and 2 grippable skeletal meshes though. The static mesh’s orientation is perfectly mirrored along UE4’s Y, but its location isn’t if I move the socket’s Y position (it’ll be distanced good from one hand but not the other).

The skeletal meshes are more effed. I spent about 6 hours today mucking with the root’s roll of the 2 skeletal items, tried orienting the entire armature in the exact same direction as that of the GunBase mesh (facing down -Y in Blender, +X in UE4) but still no luck.

Anyone familiar with Blender/UE4 reimporting know how to fix ? I think it’s likely a roll or root/armature rotation problem, but I’m not sure. I do know for a fact though, that reimporting fbx in some cases doesn’t implement all changes between the fbxs (specifically in regards to Anims, possibly armatures too I’d suspect).

The Static Grippable Mesh position prob is maybe because the origin/pivot is off from. I’m away from the work computer for the weekend (Japan time). I’ll be able to try any other solutions 2.5 days from now.

The hand meshes don’t have anything to do with the objects location, the object is mapped on to the controllers zero point itself, where your representation of the hand is from that is entirely up to you, you can move your hand position relative to the motion controller at any point.

As for skeletal meshes and root bones, due to a bug with physically simulating objects and root bones I have to add the root bones extra rotation into physics grips to support objects with a rotated root (the engine does not account for and the object will be orientated incorrectly otherwise). It may be that Epic finally fixed and I was unaware of it but you seem to be saying that the preview of the mesh is incorrect not the gripping of it for .

If you get a chance and want to pass me a PM with one of the problem Static and problem Skeletal meshes I could look at them.

The whole point of how I handle it currently is to avoid requiring people to orient meshes a specific way in order to work with the plugin.

@tiagovignatti;724534

It’s the only practical and viable way I see for developers collaborate to the plugin. I absolutely support idea!

I just dislike the concept of closing off gameplay element modifications from strictly blueprint users, the main goal of the plugin is to be a flexible back end, not a rigid front end as well.

Edit I guess they could still implement them in blueprint as well if they wanted custom ones, and I could leave the current blueprint versions intact.