Changing texture offset based on light direction
So pretty much I'm trying to make an eye material based on the ones in Sonic Lost World. I have a specular emissive texture masked by the iris, and a shine set to always be opposite of the specular's position.
The issue I'm having with this is, I need to know how I can change the specular texture (light green)'s offset depending on the light direction relative to the character. Additionally I'd need to clamp the offset between some set values. I have no idea where to start with this and to boot I'm still learning my way around Unreal.
asked Nov 04 '18 at 09:19 AM in Rendering
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