overlayed animated normal map?

wizo

Hi there,

I would like to know if there is a way to get this kind of effect working into unity,
ground creep effect from starcraft 2 :

https://www.youtube.com/watch?v=XXJn56oI35k

Basically is it possible to have a goo animation that uses a normal map on top of a mesh that already has a normal map, anyone know how to achieve something like this in unity?

huge thanks in advance!

.Wiki

You could try the strumpy shader editor to create your own shader. Maybe you could pan a normalmap with it. To combine the normalmaps you would need to manipulate some color channels inside of the shader tree.

warby

yeah this will call for a custom shader with some panning normal lays blending to gather based on masks or doing a sort of flip-book texture but that is always inconvenient to uv map

Zodd

About using the custom scrolling normal map texture, I second and third that.
However, that might take a lot of memory usage since:
Option 1: Use 1 tiling normal map texture and scroll it ( not as much memory impact but wont look
as good unless you do some groundbreaking thing )
Option 2: Use one larger texture that contains frames of animated "ground creep" and scroll
through it using custom shader ( but this will take more of memory since the "ground
creep" animation sheet will be huge ( if you want it to look ok )

Those were my 2 cents but then again the might be more options ( projector maybe ? )

wizo

alright guys, thanks for your input, I've asked one of our programmers about overlaying a tiling normal map with 3 different masks on an R G B texture, I hope it turns out alright,

thanks again!