VR Expansion Plugin

[mordentral]

Thank you. I have no idea how to recompile the plugin, so I guess it's the bleeding edge for me with the naviation 4.13 branch. Alternatively, if you could guide me here, I'd be very grateful. I tried Googling without much success.

The 4.13 branch is stable enough you can use it as long as you don't use the new features (which I haven't posted details about yet so it should be fine).

Also somehow your last post spammed 30+ messages to my inbox...

[avinashlobo]

The 4.13 branch is stable enough you can use it as long as you don't use the new features (which I haven't posted details about yet so it should be fine).

Also somehow your last post spammed 30+ messages to my inbox...

Thanks, that's great (about the branch being stable). Not so great about the spam. No idea why that happened. Hopefully this post doesn't also do it.

[TheFoyer]

Hey mordentral great plugin. I was quickly able to get a multiplayer VR game setup pretty quickly. But I must admit I'm struggling getting the Grip Actor function to "work" on clients.

> Has Grip functions that are also replicated (call them on the server) but are an optional feature

When my client calls "grip actor" it doesn't attach. I moved it behind "switch has authority" and still no go. Does it matter if the actor itself is replicated or not? Is there anything else I am missing besides making sure the function is called server side? Thanks

EDIT:

Whoops, I forgot that the controller pressed events were client side. Once I added a RPC to fire the grip actor function everything worked as it should!

[mordentral]

Hey mordentral great plugin. I was quickly able to get a multiplayer VR game setup pretty quickly. But I must admit I'm struggling getting the Grip Actor function to "work" on clients.

> Has Grip functions that are also replicated (call them on the server) but are an optional feature

When my client calls "grip actor" it doesn't attach. I moved it behind "switch has authority" and still no go. Does it matter if the actor itself is replicated or not? Is there anything else I am missing besides making sure the function is called server side? Thanks

EDIT:

Whoops, I forgot that the controller pressed events were client side. Once I added a RPC to fire the grip actor function everything worked as it should!

Yeah I actually have it print to the log saying "Call this on the server" when you call it from the client as well.

[mordentral]

Keep in mind that I have the grip movement all client side currently, I had server side grips during collision originally but it got really aggravating as a client trying to move things due to latency issues. I have a Trello card to expose server side grip movement as an option in the future again but will leave client side as the default.

When i get time to go back and finish the hybrid grip type I think that server side would work better, that grip should be the end all be all when it is working perfectly (it still passes through some weird meshes at odd angles sometimes.....).

[TheFoyer]

Yeah I actually have it print to the log saying "Call this on the server" when you call it from the client as well.

Hm maybe it's possibly I glossed over it but don't recall that! In VR it's almost impossible to see the log messages if they print to screen (don't know if those do or not)

> Keep in mind that I have the grip movement all client side currently

Does that mean the movement is processed client side so it would be possible to inject your own values? Luckily that's not a concern for myself but good to know for future reference.

[mordentral]

Hm maybe it's possibly I glossed over it but don't recall that! In VR it's almost impossible to see the log messages if they print to screen (don't know if those do or not)

> Keep in mind that I have the grip movement all client side currently

Does that mean the movement is processed client side so it would be possible to inject your own values? Luckily that's not a concern for myself but good to know for future reference.

Well you could always inject your own values even if the server denied it, just run OnHit events and position checks on the server side and its all good. When objects are attached to actors they actually stop replicating as well and each client updates their position instead, It works like that currently for my grip system. Like I said I intend to make it optional to have server side position and it will work pretty good with the hybrid grid, but having latency in the other grips when trying to move is really jarring.


Not to mention the ultimate problem that in VR the client is the authority for where their limbs are.



Also that warning prints to the editor log, not to the screen.

[tcla75]

Can anyone tell me what I am doing wrong here? I'm following these instructions.

Clone Or Download Zip and extract this repository to a folder named "VRExpansionPlugin" in your "ProjectName/Plugins" directory, create this directory if it is missing.

So I do that exactly.


But then I get this error on launch.

[mordentral]

It needs to be recompiled? If you updated to 4.13 the current repository version is still for 4.12.5. It works on 4.13 but has to be re-compiled for it.

My 4.13 specific branch is undergoing heavy changes so I don't feel comfortable releasing it yet. This is part of the issue of supporting multiple engine versions.

I believe that the template using it has a pre-compile version for 4.13 currently.

[n00854180t]

[MENTION=4285]mordentral[/MENTION] - Have you tried using CCD for the hybrid mode? Might help the tunneling in those corner cases.

[Saiodin]

[MENTION=50701]tcla75[/MENTION] I had problems recompiling my project too. Made a new one (BP), compiled with an empty c++ class, added the plugin in the folder, recompiled again, then it worked. Migrated my content from the old project and adjusted it. Guess that just works if you're not that far with your project tho.
[MENTION=4285]mordentral[/MENTION]: Thanks a lot for this plugin, it's really helped me out with the object interaction. It's actually the first one I'm using, for new versions I assume I'll just have to copy in the new version of the plugin and recompile?

[tcla75]

[MENTION=50701]tcla75[/MENTION] I had problems recompiling my project too. Made a new one (BP), compiled with an empty c++ class, added the plugin in the folder, recompiled again, then it worked. Migrated my content from the old project and adjusted it. Guess that just works if you're not that far with your project tho.
[MENTION=4285]mordentral[/MENTION]: Thanks a lot for this plugin, it's really helped me out with the object interaction. It's actually the first one I'm using, for new versions I assume I'll just have to copy in the new version of the plugin and recompile?

Thanks Saiodin. I actually found an easier way which was removing the plugin from my project, adding c++ to it (Which I didn't have,BP only) then restart it and then it asked me to rebuild it.

[TheMindWalrus]

I just tried the 4.13 VR template and found it to be greatly lacking (w/ regards to player collision) compared to this plugin, so I'll be sticking with it for now.

I'm having a heck of a time getting grab / drop to work (being a horrible newbie to UE4 and all) and was wondering if there are any step-by-step guides on setting this up with VREP I could follow, just to get my bearings. I couldn't even get overlap events to trigger.

[mordentral]

[MENTION=4285]mordentral[/MENTION] - Have you tried using CCD for the hybrid mode? Might help the tunneling in those corner cases.

I don't want to force CCD on for anything due to its performance hit, I think I found where it was going wrong last night though and intend to try and get it up and running today.

[mordentral]

Thanks Saiodin. I actually found an easier way which was removing the plugin from my project, adding c++ to it (Which I didn't have,BP only) then restart it and then it asked me to rebuild it.

You need to have a c++ class anyway for packaging since it is a source based plugin. You can package them like the marketplace does with just binaries but then it has to be installed in the engines directory and that is a lot harder to manage with something going through constant changes.