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    Class ParallelFilters

    The Parallel Filters Controller.

    This filter controller splits the input into two lists of filters, runs each list separately, and then blends the results together.

    The Parallel Filters effect is useful for reusing an input. Ordinarily, a filter modifies the input and passes it to the next filter. This effect allows you to split the input and re-use it elsewhere. It does not gain performance benefits from parallel processing; it is a convenience for reusing the input.

    The Parallel Filters effect is not a filter itself. It is a controller that manages two FilterLists, and the final Blend filter that combines the results. The FilterLists are named 'top' and 'bottom'. The 'top' output is applied as a blend texture to the 'bottom' output.

    You do not have to populate both lists. If only one is populated, it will be blended with the original input at the end. This is useful when you want to retain image data that would be lost in the filter process.

    A Parallel Filters effect is added to a Camera via the FilterList component:

    const camera = this.cameras.main;
    camera.filters.internal.addParallelFilters();
    camera.filters.external.addParallelFilters();

    Hierarchy (View Summary)

    Index
    constructor
    active allowBaseDraw blend bottom camera currentPadding ignoreDestroy paddingOverride renderNode top
    destroy getPadding getPaddingCeil setActive setPaddingOverride
    active: boolean

    Toggle this boolean to enable or disable this filter, without removing it from and re-adding it to the Camera's filter list.

    allowBaseDraw: boolean

    If true, this filter will be permitted to draw to the base texture. This can be unwanted if, for example, the filter doesn't actually draw anything.

    This is an internal flag used by the renderer. You should not modify this value directly.

    blend: Blend

    The Blend filter controller that composites the top and bottom FilterList outputs into a single result. It is a standard Phaser.Filters.Blend controller whose blend mode and amount can be configured to control how the two outputs are combined. See Phaser.Filters.Blend for more information.

    The texture property of the Blend controller will be overwritten during rendering.

    bottom: FilterList

    The bottom FilterList. Filters added to this list receive the original input and are processed independently from the top list. The final output of this list serves as the base image onto which the top output is blended by the Blend controller.

    camera: Camera

    A reference to the Camera that owns this filter.

    currentPadding: Rectangle

    The padding currently being used by this filter. This is read during rendering via getPadding, and may be updated by subclass implementations. It is necessary for filters being used in an external list. You should not modify this value directly.

    ignoreDestroy: boolean

    Whether this filter controller will be destroyed when the FilterList that owns it is destroyed. If you enable this, you must ensure that you clean up the filter controller at an appropriate time. This allows you to reuse a controller for multiple objects; this is not recommended unless you know what you're doing. It tends to work best with external filters.

    paddingOverride: Rectangle

    Padding override. This is on by default. If this is set, the filter will use this padding instead of calculating it. Prefer using setPaddingOverride instead of modifying this directly.

    renderNode: string

    The ID of the RenderNode that this filter uses.

    top: FilterList

    The top FilterList. Filters added to this list receive the original input and are processed independently from the bottom list. The final output of this list is passed to the Blend controller as a blend texture, which is then composited onto the bottom output.

    • Destroys this Controller and nulls any references it holds.

      Returns void

    • Returns the raw padding required for this filter. This is typically not what you want to call; use getPaddingCeil instead. Values from this method are not rounded, which can cause quality loss.

      Override this method when creating a Filter that requires extra room, e.g. a blur or glow effect.undefined

      Returns Rectangle

      The padding required by this filter.

    • Returns the rounded padding required for this filter.

      Most filters don't need extra padding, but some may sample beyond the texture boundaries, such as a blur or glow effect.

      The bounds are encoded as a Rectangle. To enlarge the bounds, the top and left values should be negative, and the bottom and right values should be positive.

      This method calls getPadding() to get the raw padding values, and uses Math.ceil() to set the values of paddingOverride and currentPadding.undefined

      Returns Rectangle

      The rounded padding required by this filter.

    • Sets the active state of this filter.

      A disabled filter will not be used.

      Parameters

      • value: boolean

        true to enable this filter, or false to disable it.

      Returns this

      This filter instance.

    • Sets the padding override. If this is set, the filter will use this padding instead of calculating it. Call setPaddingOverride(null) to clear the override. Call setPaddingOverride() to set the padding to 0.

      Parameters

      • Optionalleft: number | null

        The left padding. Default 0.

      • Optionaltop: number

        The top padding. Default 0.

      • Optionalright: number

        The right padding. Default 0.

      • Optionalbottom: number

        The bottom padding. Default 0.

      Returns void

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