> For the complete documentation index, see [llms.txt](https://themattempire.gitbook.io/documentation/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://themattempire.gitbook.io/documentation/archive/roblox/visual-effects-vfx/trails/trail-properties.md). # Trail Properties ## Appearance Properties ### FaceCamera Attempts to have the Trail always facing the camera. Depending on the flow of the Trail this may or may not work as well as expected.

### LightEmission (Default : 0) Determines how much the Trail is blended with the colors behind them. The result is very subtle.

### LightInfluence Determines how much the Trail is influenced by the Environment lighting. This example shows a red Point light to the right with a setting of 1. If you set the LightInfluence to 0 the environment does not affect the Trail at all. A Brightness setting will become available when LightInfluence is *not* set to 1.

### Texture The Texture Property uses an image that will be applied to the Trail. Note that the image will tile and stretch across the Trail. These settings can be adjusted below the Property. * Click on the property result. * Use the 'Add Image...' button at the bottom of the popup. * Use the 'Choose File...' Button at the top of the following window. * Load your desired image. * Rename the image if you want. * Select 'Create' to import the Image onto your Trail. Note the direction of the image (upwards) and how it is placed on the Trail. This would be useful when designing your own images to use.

### TextureLength Sets the length of the Trails texture. This depends on the TextureMode property (next point). By default (Stretch mode at 1 Texture Length) the texture will fit once across the Trail regardless of how long the Trail is.

### TextureMode Determines how the texture wraps and repeats over the course of the trail.

TextureMode : Set to 'Static' then 'Stretch' then 'Wrap'...

### Transparency Determines the transparency over the course of the Trail. You can use a single number, or the Number Sequence to affect the Transparency over time. Note how the Trail at 0 Transparency seems to brighten, use the LightInfluence, LightEmission, and Brightness settings to adjust this if needed.

Transparency : Set from 1 to 0 over time...

## Emission Properties ### Enabled Enables or Disables the Trail. ### Lifetime Defines the range of lifetime from minimum to maximum. They can be the same amount as well.

### MaxLength - Minlength Sets the Maximum and Minimum length of the Trail. The two properties work together for different results with examples below.

MaxLength - MinLength - Set to 0 & 0.1, then 10 & 10...

### WidthScale Adjusts the width over the course of the Trail. Values between 0 - 1 are useful.

WidthScale : Set from 0 to 1 to 0 over time...

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