Lightmap RGBA Channels breakdown?
Does anyone know what each channel represents within the Lightmap RGBA? I assume that RGB is used for GI luminosity and Color but what about the Alpha channel? Is that AO? How does Lightmass use these channels?
I have enclosed two views of the test mesh level, the original (uncompressed) HG_Lightmap and its RED channel and ALPHA channel.
@DanielW would you be so kind as to explain this to us and what the banding portion in the Alpha is use for?
asked Apr 29 '16 at 05:54 PM in Rendering
I was also wondering about this and I made a question on the Developer network. someone from the staff replied so it might be useful to check this out! https://udn.unrealengine.com/questions/352364/lightmap-rgba-channel-breakdown.html
answered Mar 23 '17 at 09:13 AM
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