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Transcluent Vs Masked Blend Mode

Could someone give me a feedback on this post: Link to the post

Does that mean that the preformance is actualy better when using transcluent rather than masked blend mode?

Product Version: UE 4.16
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asked Jul 14 '17 at 03:34 PM in Rendering

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White Fantasy
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Masked blend mode with early z pass should be considerably cheaper than translucent. Without Z pre-pass it is not much of a difference. It is not always the case though.

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answered Jul 14 '17 at 05:54 PM

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Deathrey
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avatar image White Fantasy Jul 14 '17 at 06:44 PM

Thx for an answear but I don't realy know what early z pass or z prepass is. I googled it a bit but haven't been able to find a simple explanation for it. Would you mind giving me one?

avatar image Deathrey Jul 17 '17 at 01:17 PM

Depth prepass, is a feature, that allows you cut down rendering costs. Before rendering the scene properly, it quickly renders it with a cheap shader, that outputs only depth. Later this depth information is used to skip expensive pixel shader computations on parts of the objects, that are hidden behind other objects.

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