Bump map only part of the texture

[JuhaW]

I have Splat node and 2 image textures connected to it (in image for easier to see, they are blue=rocks and white=grass) and I want bumping only happens in blue part (bump from rocks also). How do I have to connect nodes for rock bump ?

[bdancer]

If you need to mask the bump then add a mask texture based on Splat output; sry I don't get the issue.

[JuhaW]

I need bumb happening only color1 area of Splat output, blue area in image. I dont know how get that area when using mask node.

[bdancer]

You have intensity output (greyscale); you could use it as mask.