How do you add coronas / lens flares on maps?

[MirceaKitsune]

Been mapping for Nexuiz for a little while (working on my first map for it really but I know Radiant well enough to use it) but there's one thing I just couldn't find out; How do you add corona / lens flare effects on light sources in maps? I tried looking at a quake mapping tutorial but the instructions on how to place coronas there don't seem to apply to Nexuiz too (Radiant 1.5.0).

I seen the Corona option exists in the settings and also seen a screenshot of a Nexuiz map with coronas so I know they're possible, so where in gtkRadiant for Nexuiz can coronas be found and placed? Also, if coronas use custom textures, could someone also mention the texture group where lens flare textures can be found?

[Taiyo.uk]

In the 2D view, RMB->misc->misc_light_flare to create the flare. Move it to the desired location and press M while it is still selected. Set it's radius and shader name to the desired values. The shader can be one from any map that already has flares.

[MirceaKitsune]

In the 2D view, RMB->misc->misc_light_flare to create the flare. Move it to the desired location and press M while it is still selected. Set it's radius and shader name to the desired values. The shader can be one from any map that already has flares.

Weird, I don't have that option there under the misc menu. This is how it looks like for me:

[[-z-]]

update your entities.def file.

[MirceaKitsune]

update your entities.def file.

Done that... I overwrited the entities.def in nexuiz.game/data in gtkRadiant with the one in the data(numbers).pk3 file in the Nexuiz data folder. However, that entities.def does not seem to contain any information about the lens flare and only cut away two more of the options under the misc mini-menu. Does anyone know where I can get a correct entities.def? Or should I try the one in SVN as posted in that topic?

[[-z-]]

ctrl+f for the svn one yielded nothing pertaining to what Taiyo.uk was referring to... not sure where he got that information from. Someone else will have to clarify.

[Strahlemann]

There are two ways to do lensflares/coronas in Nexuiz. The first one is the oldschool way that uses a shader and a texture. You can take a closer look on how it's done on the map "pushme": http://hagger.rbi.informatik.uni-frankf ... pushme.pk3

The shader (taken from the map above) looks like that:

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models/mapobjects/flares/Light_flare

{
        deformVertexes autosprite
        surfaceparm   trans
   surfaceparm nomarks
   surfaceparm nolightmap
   q3map_surfacelight   3000   
        cull none

   {
      map models/mapobjects/flares/light_flare.tga
      blendFunc GL_ONE GL_ONE
      rgbGen identityLighting
   }

}

The important part is the line "deformVertexes autosprite" which tells the engine to let the texture always face in the direction of the player.

The second possibility to do coronas is using the rtlights in Nexuiz. The coronas then will only show if the player enables dynamic world lights of course.
To create those, start the ingame rtlights editor. Then spawn a light and edit the attributes for the corona.

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r_editlights 1
r_editlights_spawn
r_editlights_edit corona <value>      (sth. like 1 seems normal)
r_editlights_edit coronasize <value>      (sth. like 1 seems normal)

To edit the attributes of a specific light you need to focus it. The attributes then are visible in the upper right corner of your screen.
For more info on rtlights use

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r_editlights_help

And don't forget to save your rtlights with

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r_editlights_save

Your lights will then be saved in a yourmapname.rtlights file. Add it to your pk3 into the /maps folder and your done.

[LordHavoc]

The second possibility to do coronas is using the rtlights in Nexuiz. The coronas then will only show if the player enables dynamic world lights of course.

Not if you use

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r_editlights_edit normalmode 1

which makes it appear in normal mode too.. But it's best to also use

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r_editlights_edit diffuse 0
r_editlights_edit specular 0

if you do that, so that the light is a corona only (no real lighting), these render pretty cheaply.