[ch4os]

Description

Did you ever experience this strange bug where your viewmodel suddenly disappears and you didn't do anything?
This is actually an engine bug Valve should try to fix.

This plugin tries to prevent this bug from happening on your server.



Installation

- Drop missing_viewmodel_fix.smx into addons/sourcemod/plugins.
- Restart server and you're good to go.

Explanation of the bug

If someone joins spectator mode and watches someone else in first person mode, the player still alive can't see their viewmodel (weapon and hands) anymore. It looks like "r_drawviewmodel 0" was executed. This only happens if "mp_death_drop_gun" is set to 1.

How can this be replicated exactly?
1) Run your server with default competitive settings, with or without MetaMod/SourceMod.
2) Start up de_dust2.
3) Join CT team together with a friend.
4) You have to be apart enough for this to work (as this bug seems to only happen when transition effect is not visible), so let your friend walk all the way on A long until he reaches pit.
5) You stay on CT spawn, make sure you've set "cl_spec_mode" to 4 (firstperson) - this is part of the bug.
6) Join spectator mode - your friend's viewmodel is now gone.

What this plugin does

This plugin intercepts teamjoins to spectator and forces the client to set "cl_spec_mode" to 6 (free look) first. As soon as the client has set freelook mode the teamjoin is performed. This causes the client to start in freelook mode and therefore prevents the bug.

Limitations

This plugin may not work if you use other plugins that intercept teamjoins as well (like TeamChange Unlimited).

Fix for TeamChange Unlimited:

Change this:

PHP Code:

TeamChangeActual(client, toteam); 


To this:

PHP Code:

if (toteam == TEAM_SPECTATE) {
   return Plugin_Continue;
} else {
   TeamChangeActual(client, toteam);
} 


Valve?

Hopefully Valve will fix this bug so this plugin won't be needed anymore soon.


**EDIT** There's an updated version by SHUFEN.jp (thanks!) -> see post #5 for download link


Old download

[whtevrwt]

I've honestly never experienced this bug. But, I'm sorry for those who do.

[ch4os]

Well, problem with this bug is:

On normal match servers you probably won't see this as people usually join T or CT to play. So they won't join spectator to trigger the bug.

And on bigger community servers where people more often join spectator mode, you still need a greater distance to not trigger the transition effect. Which is highly unlikely if there are many people on the server. So the bug won't be seen often there, too.

You will probably most likely see this bug on private servers when you practice smoke grenades and tactics with your buddies. Or on servers with large maps like surf maps, where the transition effect is less likely to happen when joining spectator.

That's probably why noone really knows this bug so far. Which makes it even harder for Valve to recognize

[zipcore]

Great!

[SHUFEN]

I fixed some things of this, now working fine always.
I publish it here.

[Mitchell]

has anybody tried sv_force_transmit_ents?

[sneaK]

Originally Posted by Mitchell has anybody tried sv_force_transmit_entities?

sv_force_transmit_ents - Will transmit all entities to client, regardless of PVS conditions (will still skip based on transmit flags, however).

Would this even fix the issue? Also seems like it would increase server load significantly.

Thank you shufen for the changes, will check this out!!

[Mitchell]

Originally Posted by blackhawk74 sv_force_transmit_ents - Will transmit all entities to client, regardless of PVS conditions (will still skip based on transmit flags, however). Would this even fix the issue? Also seems like it would increase server load significantly. Thank you shufen for the changes, will check this out!!

Yeah that's the one, this was introduced with the transmit players iirc. Could be issues with the predicted viewmodel and the player's position, a bug that you see some times with players that "teleport" into your view. Here's a quick reference what i'm talking about: https://www.youtube.com/watch?v=4Uw8VkxpDzg
Edit: also I have no idea if that convar will impact performance, especially since one would normally think that hiding things from a player and calculating if they can see it may take more resources, but it's valve and they may have not skipped this check if the convar is set to 1.

[ch4os]

Thanks for the update, SHUFEN.jp! Just saw this today. I updated the description to use your version instead.

[Neuro Toxin]

Bad spectator plugins cause this.

How to replicate.

1. Join a server
2. Join a team
3. Make plugin change you to spec with the iteam netprop
4. The person you are specing bugs out as per OP

This is not a game bug. This is caused by bad plugins.