Phaser API Documentation

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Phaser . FX . Blur

Phaser . FX . Blur

The Blur FX Controller.

This FX controller manages the blur effect for a Game Object.

A Gaussian blur is the result of blurring an image by a Gaussian function. It is a widely used effect, typically to reduce image noise and reduce detail. The visual effect of this blurring technique is a smooth blur resembling that of viewing the image through a translucent screen, distinctly different from the bokeh effect produced by an out-of-focus lens or the shadow of an object under usual illumination.

A Blur effect is added to a Game Object via the FX component:

const sprite = this.add.sprite();

sprite.preFX.addBlur();
sprite.postFX.addBlur();

Constructor:

new Blur(gameObject, [quality], [x], [y], [strength], [color], [steps])

Parameters:

name type arguments Default description
gameObject Phaser.GameObjects.GameObject

A reference to the Game Object that has this fx.

quality number <optional> 0

The quality of the blur effect. Can be either 0 for Low Quality, 1 for Medium Quality or 2 for High Quality.

x number <optional> 2

The horizontal offset of the blur effect.

y number <optional> 2

The vertical offset of the blur effect.

strength number <optional> 1

The strength of the blur effect.

color number <optional> 0xffffff

The color of the blur, as a hex value.

steps number <optional> 4

The number of steps to run the blur effect for. This value should always be an integer.

Since: 3.60.0
Source: src/fx/Blur.js (Line 11)

Extends


Members

active: boolean
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Description:

Toggle this boolean to enable or disable this effect, without removing and adding it from the Game Object.

Only works for Pre FX.

Post FX are always active.

Type:
boolean
Inherited from: Phaser.FX.Controller#active
Since: 3.60.0
Source: src/fx/Controller.js (Line 47)
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color: number
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Description:

The color of the blur as a number value.

Type:
number
Since: 3.60.0
Source: src/fx/Blur.js (Line 143)
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Description:

A reference to the Game Object that owns this effect.

Type:
Inherited from: Phaser.FX.Controller#gameObject
Since: 3.60.0
Source: src/fx/Controller.js (Line 38)
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glcolor: Array.<number>
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Description:

The internal gl color array.

Type:
Array.<number>
Since: 3.60.0
Source: src/fx/Blur.js (Line 128)
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quality: number
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Description:

The quality of the blur effect.

This can be:

0 for Low Quality 1 for Medium Quality 2 for High Quality

The higher the quality, the more complex shader is used and the more processing time is spent on the GPU calculating the final blur. This value is used in conjunction with the steps value, as one has a direct impact on the other.

Keep this value as low as you can, while still achieving the desired effect you need for your game.

Type:
number
Since: 3.60.0
Source: src/fx/Blur.js (Line 61)
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steps: number
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Description:

The number of steps to run the Blur effect for.

This value should always be an integer.

It defaults to 4. The higher the value, the smoother the blur, but at the cost of exponentially more gl operations.

Keep this to the lowest possible number you can have it, while still looking correct for your game.

Type:
number
Since: 3.60.0
Source: src/fx/Blur.js (Line 102)
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strength: number
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Description:

The strength of the blur effect.

Type:
number
Since: 3.60.0
Source: src/fx/Blur.js (Line 119)
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type: number
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Description:

The FX_CONST type of this effect.

Type:
number
Inherited from: Phaser.FX.Controller#type
Since: 3.60.0
Source: src/fx/Controller.js (Line 29)
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x: number
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Description:

The horizontal offset of the blur effect.

Type:
number
Since: 3.60.0
Source: src/fx/Blur.js (Line 84)
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y: number
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Description:

The vertical offset of the blur effect.

Type:
number
Since: 3.60.0
Source: src/fx/Blur.js (Line 93)
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Methods

destroy()
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Description:

Destroys this FX Controller.

Inherited from: Phaser.FX.Controller#destroy
Since: 3.60.0
Source: src/fx/Controller.js (Line 81)
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setActive(value)
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Description:

Sets the active state of this FX Controller.

A disabled FX Controller will not be updated.

Parameters:

name type description
value boolean

true to enable this FX Controller, or false to disable it.

Returns:
Description:

This FX Controller instance.

Inherited from: Phaser.FX.Controller#setActive
Since: 3.60.0
Source: src/fx/Controller.js (Line 62)
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