# Plug-In Parameters

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## Options Button

This launches the Lens Flare Editor!

## Format[^1]

Allows you to set the render size for the Lens Flare

## Position XY

This is the main lens flare position. This value can be assigned to a tracker node to automate the position.

## Center Position

This position is where the lens flare crosses in the middle of the screen. The “Init Center” button re-adjusts the center position based on the Format Size.

## Source Type

This allows you to switch between a 2D Position Flare and a 3D Position flare based on 3D lights in your scene.

## Additional 2D Flares

A single Optical Flares node can generate multiple lens flares based on a single flare preset. You can increase the additional flare amount and adjust their position and brightness independently. NOTE: Using a single instance of Optical Flares will speed up rendering VS using multiple copies of the same flare.

{% hint style="info" %}

### **ADDITIONAL 2D FLARES**

### **BRIGHTNESS**

This controls the overall brightness of the Lens Flare Preset. NOTE: Some lens objects can be manually excluded from the Global Brightness through the advanced properties of the object inside the flare editor.

### **SCALE**

This controls the size of the Lens Flare objects. NOTE: Some lens objects can be manually excluded from the Global Scale through the advanced properties of the individual object inside the flare editor.

### **SCALE OFFSET**

This value forces the Scale parameters to constrain the offset distance when scaling up or down the lens flare objects.

### **ROTATION OFFSET**

This value allows you to control the rotation of lens objects like streaks in order to animate these values with keyframes.

### **COLOR**

Control the global tint color of the Lens Flare Preset.&#x20;

### **COLOR MODE**

Change the type of color tinting from full color tint to multiply color blending.

### **ANIMATION EVOLUTION**

This value controls the noise evolution for lens objects like, Glint, Spike Ball, Sparkle and Shimmer. This value relates to the “Animation Controls” for these objects inside the flare editor.
{% endhint %}

## 2D Matte Occlusion

This group of settings controls the automatic obscuration of lens flares when the light source is blocked by an object in your scene. Using a luminance or alpha matte plugged into the matte input, the flare will blink out as the position reaches your input matte.

## Flicker

Add animated flicker to the brightness of your flares. If multiple flares are generated in a single node, you can also change randomize the flicker pattern to be unique for each flare.

## Render Mode

Control how the flare is rendered inside the NODE. In most cases using a Merge node allows you to composite the Flare over a background.

## Colorspace

Set the Lens Flare colorspace to match project settings.

## GPU

Supported GPU’s with Optical Flares for Nuke will speed up rendering. If you have a render farm without supported GPU’s, you can turn off this switch and render on the CPU.

## 3D Tab

Control the light property influence on lens flares using a 3D Scene.

## Misc Tab

Set the UI Gamma for a background image that is plugged into the background pipe of the Optical Flares for Nuke node.

## Solo Flare ID

Allows the user or a script to access an individual flare component by its ID as defined in the Optical Flares UI. This allows scripts or the user to access individual flare nodes for compositing.

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