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# Corona

A corona is created by making a light that has a skin associated with it. It is often erroneously called lens flare).

## UT

Here are the steps for making a corona in UT:

1. Place a Light (UT) wherever you want the corona to appear.
2. Open the Texture Browser and select a corona texture. There are some nice ones in GenFX and City.
3. Open the Actor Properties for the light. Set the following properties:

Group | Property | Value | Explanation
Display | Skin |  | Click Use to give your light the texture you just picked out.
Display | DrawScale | 0.1...0.3 | Scales the corona image; with 1.0 it's rather large. One unfortunate consequence of this is that this property also scales the actor icon in UnrealEd, making corona actors hard to find.
LightColor | Brightness | 0.0 | Set so that your corona won't also cast light. You'll need to use a second light for that.
LightColor | LightHue |  | Set a colour for your corona (if you are using a white skin that is, if you have a colored one then just leave it).
Lighting | bCorona | True | bLensFlare was used with Unreal1 and is obsolete in UnrealTournament.
Lighting | LightRadius | anything | sets how far the corona will be visible in game

The map must be rebuilt (including geometry) to see the effect.

### Caveats

- Coronas can only be seen through masked semisolid or nonsolid brush.
- A corona textured light can also be used as a light emitting source, but the corona will only be seen in game as far as the radius is set.
- To make a small radius light seen from afar, use 2 lights. Set the corona textured light actor brightness → 0.

## Viewing Coronas in UnrealEd

(Could someone confirm which rendering modes display them in UnrealEd?)

1. Type `camera open` into the UnrealEd Console
2. Maximize the floating viewport
3. The viewort should use accelerated rendering and show lens flares.
4. Press `Alt+Tab` to return to UnrealEd.

### Caveats

Birelli: Software rendering in UED does not display coronas as D3D does. As for looking at it in the editor I always just right-click the top bar of my 3-D viewport and go down to D3D, I'm not sure what this camera open thing does though, maybe it's better

Tarquin: "Camera Open" opens a floating viewport you can maximize to the entire screen. It's good for people with a dinosauresque 2-card setup who can only run OpenGL fullscreen (like me)

## Comments

Tarquin: Do we need to update this for UT2003?

MythOpus: I think So. Unfornately, I haven't mapping lately to see whats changed...

## Related Topics

- Lighting topic page
- Light (UT) class reference
- Actor (UT)/Lighting – Reference page for Lighting and LightColor properties

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