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EPIC can you add extra vertex paint channels

I Know there are a ton of tricks to use to get more out of vertex paint but sometimes i just want more vertex channels. So my Question is EPIC can you make a + button that i can hit up on a material vertex color node to add extra channels. (as manny as one would like or atleast 3 more) vertex paint is so handy but 3 varibles can be a bit limiting if you want to make something complex.

I've worked with a other engine that used this and it feels so nice having the option to simply add channels. simple example would be a shader that got a few ground textures you can vertex paint but also paint there wetness, frozen or snowyness.

have a nice day, happy user Sander

Product Version: UE 4.18
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asked Dec 01 '17 at 02:49 PM in Using UE4

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avatar image Luos Dec 01 '17 at 11:29 PM

*four vertex colors, you can also use the alpha channel.

If you use if-statements or other math, you could do something like red vertex color 0.0 - 0.49 > texture 1, red vertex color value 0.5 - 1 > texture 2, and that for each vertex color.

avatar image ZixXer Dec 02 '17 at 02:30 PM

I know know all that (I dont know why i did not say 4 I know the alpha works aswell) Like I said before I know shader tricks to get more out off the 4 channels but there are limits to how nice and easy it is to paint stuff with only a few channels, thats why i want more.

deviding 1 channel up in 7 sub channels where you have dry ground, wet, rain, frozen, snow, sand, dirt. and then you wantdry ground to be blended with the dirt version that means in that short distance where the vertex color goes from red to black you get all 5 other textures before you went from dry ground to a dirt that means no nice transisions are posible. also no overlays are posible. (extream example)

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