slope gradient doing my nut

[robdorney]

Just a quick one, and I'm sure this is very simple, but I can't work out how.

I need to make a node surface be affected by how much it faces straight upwards. I thought using a slope gradient would be the simplest input, but it looks like it does not evaluate the slope at render-time (i.e.when its animating). As such, my surface looks fine until the object turns over, where the surface is `sticky` and does not change according to how much it faces up +Y

Anyone provide a solution here!?!?
cheers

[evenflcw]

Add vector node <0,-1,0>, hook that into an incidence node as vector, hook the results of that into the gradient node as input. You might have to scale your gradient keys.

[robdorney]

blup...yum... sounds good... lemme try! :agree:
Thanks bud