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how to run filter one time?


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I think when i set a filter on a sprite, it runs every frame? What if I only need to run the filter one time for performance purposes?

How do I run a filter only once and get an output from it?

I have tried this, but the output that it returns is just null;

var vfilter = new PIXI.filters.DotFilter();  
var filtersystem = new PIXI.systems.FilterSystem(app.renderer);
filtersystem.applyFilter(vfilter, nvGraphic, output);

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