Merge shader question - how to stop it diluting output

[reck]

I want to create a mask for some grass consisting of a couple of simple shapes and a power fractal. To be able to combine 3 shaders to be a single mask for an object population I suppose I need to use a merge shader, right?

For testing purposes I linked the merge shader up to a power fractal with a bright pink colour so I could see the output on the ground. What i'm noticing is that once the colour comes out the merge shader the pink colour is no longer a bright pink but a washed out pink. How can I ensure the intensity stays consistent after it comes out a merge shader? I need it to be 100% so I don't get any grass coming onto it.

Merge shader is setup in mix mode set at 0.5 between the two shaders. Do I need anything in the mix controller?

Cheers.

[bobbystahr]

I just chain the SS shaders together and mask from the bottom one

[Dune]

Yes, that's the answer.
The mix controller does what it says; it controls the mix. So if you add a PF (or a simple shape for that matter), you can easily see what happens; the 2 inputs will be split according to the controller.

[mhaze]

You can change mix to add?

[reck]

Ah looks like I was making it harder than it needed to be, thought I had to combine them using a merge shader but looking at Bobby's file I can see that chaining them works great.

I was battling with this for a while last night, should have just asked you guys  Thanks.

mhaze, I did try using "add" that sounded like the option to use but it didn't work. Not sure that the merge shaded can be used for this sort of thing.

[Urantia Jerry]

Thank you Bobby and Dune, I would like to use this method more myself.