Entity Draw Hook

[JohnnyCrazy]

Hai,

Currently I want to draw a laser up to the Sky, but when the entity gets out of sight, the laser isn't drawed

[vid]http://johnnycrazy.de/public/videos/hl2.webm[/vid]

So i need to create a hook on PostDrawOpaqueRenderables?

BTW: It should be always visible

Thanks,

[EvacX]

How are you drawing the laser?

[JohnnyCrazy]

Currently in the ENT:Draw hook:

[LUA]
function ENT:Draw()
self:DrawModel() --Draw model
local startpos = self:GetPos()
local spos = self:GetPos()
local ang = self:GetAngles()
ang:RotateAroundAxis(ang:Right(),90)
local epos = self:GetPos() + (ang:Forward()*16384 )
local tr = util.TraceLine({start=spos,endpos=epos ,filter= self,mask=MASK_SOLID})

local endpos = tr.HitPos
render.SetMaterial( laser )
render.DrawBeam( startpos, endpos, 5, 1, 1, Color( 255, 255, 255, 255 ) )
end
[/LUA]

[EvacX]

You should probably use a hook, yeah.

[JohnnyCrazy]

Okay, now: Which one? It should be always visible, no excuses :D

PostDrawTranslucentRenderables = Only Displayed if you have free sight on it
PreDrawTranslucentRenderables = Same
PostDrawOpaqueRenderables = Same
PreDrawOpaqueRenderables = Same

It shoud be drawed always

[Rubat]

No, that's caused by renderbounds. No need for hooks.
[url]http://wiki.garrysmod.com/page/Entity/SetRenderBounds[/url]

[EvacX]

[QUOTE=Robotboy655;43099698]No, that's caused by renderbounds. No need for hooks.
[url]http://wiki.garrysmod.com/page/Entity/SetRenderBounds[/url][/QUOTE]

It feels like it's the wrong approach to the problem to just have a huge renderbound.

[editline]7th December 2013[/editline]

I mean, it works fine in this situation without making it huge because the laser is axis-aligned relative to the entity (and just scaling it according to the trace length), but if it wasn't it just seems wrong. I don't know, I guess I just really like universal solutions :v:

[JohnnyCrazy]

Okay, got it working now, but still, i dont see the laser through walls etc.

//EDIT:

Oh, i forgot to mention, that these lasers also can be placed on walls:
[IMG]http://i.imgur.com/vbDCqob.jpg[/IMG]

So this:
[LUA]
local min,max = self:GetRenderBounds()
self:SetRenderBounds(min,max + endpos)
[/LUA]
won't work

//EDIT2
A hook would be better in this situation would'nt it?

[Rubat]

Just make it draw everywhere, it isn't going to impact performance unless you put hundreds of those.

[editline]7th December 2013[/editline]

If the hook works, use it.

[JohnnyCrazy]

Okay, but do you have any suggestions on how to achieve drawing it through walls?

[EvacX]

Use a hook that is called after everything else is rendered.

[JohnnyCrazy]

Holy, i don't get it...

ATM i use PostDrawTranslucentRenderables, which should be the correct hook, but then this happens:

[vid]http://johnnycrazy.de/public/videos/hl3.webm[/vid]

It's getting called, but it's not drawn...

[EvacX]

Try calling [b][url=http://gmodwiki.net/Lua/Libraries/render/ClearDepth]Lua/Libraries/render/ClearDepth[img]http://gmodwiki.net/favicon.ico[/img][/url][/b] after or before drawing it.

[JohnnyCrazy]

Thanks again, now its working, but:

[IMG]http://i.imgur.com/GKcfP4O.jpg[/IMG]

[EvacX]

[b][url=http://gmodwiki.net/Lua/Libraries/render/OverrideDepthEnable]Lua/Libraries/render/OverrideDepthEnable[img]http://gmodwiki.net/favicon.ico[/img][/url][/b]

Try enabling that before drawing it and then disabling it immediately after.

[editline]7th December 2013[/editline]

So like this:
[lua]
render.OverrideDepthEnable( true, true )
render.DrawBeam()
render.OverrideDepthEnable( false, false )
[/lua]

[JohnnyCrazy]

So my current code:

[LUA]
render.SetMaterial( laser )
render.OverrideDepthEnable( true, true )
render.DrawBeam( startpos, endpos, 5, 1, 1, Color( 255, 255, 255, 255 ) )
render.OverrideDepthEnable( false, false )
--render.ClearDepth()
[/LUA]

ClearDepth before drawing = Laser visible, but also creepy lamps
ClearDepth after drawing = only creepy Lamps, no laser visible
no ClearDepth = no creepy lamps, no laser visible

Ow god,

edit:

Using PostDrawTranslucentRenderables

[JohnnyCrazy]

//push

a pretty simple question:
How to draw a Beam through Walls etc, without seeing lights/lamps through walls

[JohnnyCrazy]

Solved using surface.DrawLine in the HUDPaint Hook