Use the bitmap output of a combiner as a mask

[Althaen]

It says the packet type is not accepted. I don’t know what that means. The combiner outputs a greyscale bitmap and masks are bitmaps. What do I need to do to make it work?

[WFab]

Deleted my previous replies as I misunderstood the original question.

@Althaen To convert a “bitmap” output into “heightfield” to use a a mask, pass it through any filter node that’s not RGB specific, like a “Bias/gain” node (or a “channel splitter” if the mask has an rgb color value).

[Althaen]

Thanks for the help that worked.

[davidroberson]

@WFab

To convert a “bitmap” output into “heightfield” to use a a mask, pass it through any filter node that’s not RGB specific, like a “Bias/gain” node (or a “channel splitter” if the mask has an rgb color value).

I read Althaen’s question the opposite way, having boggled over this once myself, before really taking note of the fact thet “masks” are still heightfield formats. If you need to work with a mask as a bitmap then you have to pass it through a Colorizer.