Mostly Harmless

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Object >> Material >> Modifier >> FinalBlend

Package: 

Engine

This class in other games:

U2, U2XMP, UE2Runtime, UT2004

Applies final blending operations to a material. The main uses are enabling transparency for the result of Combiners and textures that have an alpha channel but don't use that, and to fix Z-ordering problems for Emitter particles and Shaders.

[edit] Properties

[edit] Property group 'FinalBlend'

[edit] AlphaRef

Type: byte

The opacity value bound to use for masking when AlphaTest is enabled.

[edit] AlphaTest

Type: bool

If enabled, masks off all parts of the material for which the alpha channel indicates an opacity smaller than AlphaRef.

[edit] FrameBufferBlending

Type: EFrameBufferBlending

The type of frame buffer blending to apply. See EFrameBufferBlending enum below.

[edit] TwoSided

Type: bool

Whether the backside of surfaces with this material should be rendered as well.

[edit] ZTest

Type: bool

Default value: True

[edit] ZWrite

Type: bool

Whether to write to the Z-buffer. Setting this to false changes the way the material is sorted and might fix or cause problems in connection with emitters.

Default value: True

[edit] Enums

[edit] EFrameBufferBlending

Frame buffer blending types.

FB_Overwrite 

Renders the material completely opaque, completely ignoring the background colors.

FB_Modulate 

FB_AlphaBlend 

Uses the alpha channel of the material to blend the background and material colors.

FB_AlphaModulate_MightNotFogCorrectly 

Adds the material colors to the material alpha-scaled background colors. It's a bit like FB_Translucent, but uses the alpha channel instead of the material colors to decide how much the background affects the result.

FB_Translucent 

Adds the material colors to the (material) brightness-scaled background colors. Basically, the brighter the material is, the less the background affects the result.

FB_Darken 

Subtracts the material colors form the background colors.

FB_Brighten 

Adds the alpha-scaled material colors to the original background colors.

FB_Invisible 

Renders the material completely transparent.