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Unreal Engine C++ API Reference > Runtime > Engine > Materials > UMaterial
Syntax
float OpacityMaskClipValue
Remarks
If BlendMode is BLEND_Masked, the surface is not rendered where OpacityMask < OpacityMaskClipValue. If BlendMode is BLEND_Translucent, BLEND_Additive, or BLEND_Modulate, and "Output Depth and Velocity" is enabled, the object velocity is not rendered where Opacity < OpacityMaskClipValue.