Render Targets are drawing off (when attached to a skybox)

[Kill coDer]

Here I am, at it again, trying to make a fading skybox...

Basically, I've made 6 render targets each like this:

[lua]
"RPOnIceSkybox_up"
{
"Name" "RPOnIceSkybox_up"
"Width" "1024"
"Height" "1024"
}
[/lua]

I then replace the skybox textures with the rendertargets, and try to draw on it.

Except this happens, but it's only affecting the top and bottom faces:

[img]http://dl.dropbox.com/u/3787621/gm_construct0002.jpg[/img]
[img]http://dl.dropbox.com/u/3787621/gm_construct0003.jpg[/img]
[img]http://dl.dropbox.com/u/3787621/gm_construct0004.jpg[/img]
[img]http://dl.dropbox.com/u/3787621/gm_construct0005.jpg[/img]
[img]http://dl.dropbox.com/u/3787621/gm_construct0006.jpg[/img]

Code:

[lua]
// This example is based off the GMDMPickup code (Pickups in the GMDeathmatch mode by garry)
local skyboxRT_up = GetRenderTarget("RPOnIceSkybox_up",1024,1024)
local skyboxRT_dn = GetRenderTarget("RPOnIceSkybox_dn",1024,1024)
local skyboxRT_lf = GetRenderTarget("RPOnIceSkybox_lf",1024,1024)
local skyboxRT_rt = GetRenderTarget("RPOnIceSkybox_rt",1024,1024)
local skyboxRT_bk = GetRenderTarget("RPOnIceSkybox_bk",1024,1024)
local skyboxRT_ft = GetRenderTarget("RPOnIceSkybox_ft",1024,1024)

local skyname = "none"
local function GetSkyname()
skyname = GetConVarString("sv_skyname")
Material("skybox/".. skyname .. "up"):SetMaterialTexture("$basetexture", skyboxRT_up)
Material("skybox/".. skyname .. "dn"):SetMaterialTexture("$basetexture", skyboxRT_dn)
Material("skybox/".. skyname .. "lf"):SetMaterialTexture("$basetexture", skyboxRT_lf)
Material("skybox/".. skyname .. "rt"):SetMaterialTexture("$basetexture", skyboxRT_rt)
Material("skybox/".. skyname .. "ft"):SetMaterialTexture("$basetexture", skyboxRT_ft)
Material("skybox/".. skyname .. "bk"):SetMaterialTexture("$basetexture", skyboxRT_bk)

end
hook.Add( "InitPostEntity", "GetSkyname", GetSkyname )

local rtscreen = Material("skybox/"..skyname.."up")
local rttarget = skyboxRT_up

function RenderNewSkyboxes()
local oldRT = render.GetRenderTarget()

local newskyboxname = "sky_day01_01"

render.SetRenderTarget(skyboxRT_up)
render.Clear(0,0,0,255)
render.SetViewPort(0,0,1024,1024)

cam.Start2D()
local QuadTable = {}

QuadTable.texture = surface.GetTextureID( "skybox/"..newskyboxname.."up" )
QuadTable.color = Color( 255, 255, 255, 255 )

QuadTable.x = 0
QuadTable.y = 0
QuadTable.w = 1024
QuadTable.h = 1024
draw.TexturedQuad( QuadTable )
cam.End2D()

render.SetRenderTarget(skyboxRT_dn)
render.Clear(0,0,0,255)
render.SetViewPort(0,0,1024,1024)

cam.Start2D()
local QuadTable = {}

QuadTable.texture = surface.GetTextureID( "skybox/"..newskyboxname.."dn" )
QuadTable.color = Color( 255, 255, 255, 255 )

QuadTable.x = 0
QuadTable.y = 0
QuadTable.w = 1024
QuadTable.h = 1024
draw.TexturedQuad( QuadTable )
cam.End2D()

render.SetRenderTarget(skyboxRT_lf)
render.Clear(0,0,0,255)
render.SetViewPort(0,0,1024,1024)

cam.Start2D()
local QuadTable = {}

QuadTable.texture = surface.GetTextureID( "skybox/"..newskyboxname.."lf" )
QuadTable.color = Color( 255, 255, 255, 255 )

QuadTable.x = 0
QuadTable.y = 0
QuadTable.w = 1024
QuadTable.h = 1024
draw.TexturedQuad( QuadTable )
cam.End2D()

render.SetRenderTarget(skyboxRT_rt)
render.Clear(0,0,0,255)
render.SetViewPort(0,0,1024,1024)

cam.Start2D()
local QuadTable = {}

QuadTable.texture = surface.GetTextureID( "skybox/"..newskyboxname.."rt" )
QuadTable.color = Color( 255, 255, 255, 255 )

QuadTable.x = 0
QuadTable.y = 0
QuadTable.w = 1024
QuadTable.h = 1024
draw.TexturedQuad( QuadTable )
cam.End2D()

render.SetRenderTarget(skyboxRT_ft)
render.Clear(0,0,0,255)
render.SetViewPort(0,0,1024,1024)

cam.Start2D()
local QuadTable = {}

QuadTable.texture = surface.GetTextureID( "skybox/"..newskyboxname.."ft" )
QuadTable.color = Color( 255, 255, 255, 255 )

QuadTable.x = 0
QuadTable.y = 0
QuadTable.w = 1024
QuadTable.h = 1024
draw.TexturedQuad( QuadTable )
cam.End2D()

render.SetRenderTarget(skyboxRT_bk)
render.Clear(0,0,0,255)
render.SetViewPort(0,0,1024,1024)

cam.Start2D()
local QuadTable = {}

QuadTable.texture = surface.GetTextureID( "skybox/"..newskyboxname.."bk" )
QuadTable.color = Color( 255, 255, 255, 255 )

QuadTable.x = 0
QuadTable.y = 0
QuadTable.w = 1024
QuadTable.h = 1024
draw.TexturedQuad( QuadTable )
cam.End2D()

render.SetRenderTarget(oldRT)
render.SetViewPort(0,0,ScrW(),ScrH())

end

hook.Add( "RenderScreenspaceEffects", "RenderNewSkyboxes", RenderNewSkyboxes )
[/lua]

Could someone please help!

Thanks!

Also, the PreDrawSkyBox and PostDrawSkyBox hooks don't seem to work for me..

I tried making an entity at the sky_camera position that draws quads around the sky_camera. This works perfectly until the player stops looking in the direction of the entity. ENT.UpdateTransmitState doesn't work. AddOriginToPVS doesn't work.