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Detect when " Convolution effects cannot be merged " happens#492

Answeredbyvanruesc
vis-prime asked this question inQ&A
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Whats an easy way to detect a convolution effect exists in composer.passes so that I can make programmatically make a new effectPass when adding another convolution effect ?

eg: Chromatic Abberration and SMAA

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Sorry for the late response! I don't think there's a way to detect this currently. You could try copy&pasting the EffectAttribute check into your app as a workaround:

letattributes:EffectAttribute=EffectAttribute.NONE;for(consteffectofeffects){if(attributes&effect.getAttributes()&EffectAttribute.CONVOLUTION)!==0){// Convolution effect conflict.}attributes|=effect.getAttributes();}

I'll add a way to access this information in v7.

Replies: 2 comments

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Sorry for the late response! I don't think there's a way to detect this currently. You could try copy&pasting the EffectAttribute check into your app as a workaround:

letattributes:EffectAttribute=EffectAttribute.NONE;for(consteffectofeffects){if(attributes&effect.getAttributes()&EffectAttribute.CONVOLUTION)!==0){// Convolution effect conflict.}attributes|=effect.getAttributes();}

I'll add a way to access this information in v7.

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Answer selected byvis-prime
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I'll add a way to access this information in v7.

FYI: In v7 it's possible to detect whether effects can be merged by simply attempting to seteffectPass.effects inside a try-catch block. The setter will throw if the combination is invalid.

/**
* The effects.
*
*@throws If there are duplicate effects or if the effects cannot be merged.
*/
geteffects():readonlyEffect[]{
returnthis.subpassesasreadonlyEffect[];
}
protectedseteffects(value:Effect[]){
constdistinctEffects=newSet(value);
if(distinctEffects.size<value.length){
constduplicates=value.filter(x=>!distinctEffects.has(x)).map(x=>x.name);
thrownewError(`Encountered duplicate effects:${duplicates.join(", ")}`);
}
this.subpasses=value;
}

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