Help. bump map is two separate textures. How do I combine?

#1

have a bump map and half of its bump detail is in the alpha channel (I have no idea why the artists did this) How do I combine it into one map, I tried putting them on the same layer and multiplying but it darkens the image. Thanks

bump1
bump1.jpg1024x1024 62.8 KB

#2

bump2
bump2.jpg1024x1024 91.6 KB

Here is other image.

#3

Use the opacity slider.

#4

Are they both bump maps or displacement maps? Maybe i should use one for each?

#5

It’s early for me and I haven’t had my tea yet but this might work:

Put ‘bump2’ in a layer above bump1.
Set the ‘bump2’ layer to darken 100%
Duplicate the ‘bump1’ layer and put it above the ‘bump2’ layer set it to overlay 100%.

#6

I will try this when I’m off work. Really quick though, are my textures bump or displacement?