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Light Function material texture tutorial?
Hello. Is there any tutorials that talk about how to create a mask texture for a light function material in Unreal? I want to know how to make specific shapes. Here's what I mean. I have these two lamps: Making a circular mask for the light function was fairly straightforward. Just a line across the texture. But the lamp… -
Re: Light Function material texture tutorial?
You could also just do a polar transform, taking the regular flat shape of the pentagon or whatever shape, and transforming it instantly into the latlong layout. Both Photoshop and Designer have filters for this. -
Re: Light Function material texture tutorial?
Now that I'm thinking about it... I guess what I could've done is make a high-poly sphere, then shrink-wrap an octagon on the top and on the bottom of it. And then bake the result as material ID map, and use it to trace the shape for the mask. -
Re: Light Function material texture tutorial?
there is - UV a sphere and then either paint it in painter or bake to it -
Re: Light Function material texture tutorial?
Well... I basically just guess the shape by trial and error: -
Re: Light Function material texture tutorial?
That's basically what I'm trying to do, manually lol... I'm trying to trace the shape on the texture. I just thought maybe there's a better way of doing it instead of just guessing, haha :D -
Re: Light Function material texture tutorial?
Exactly what I thought about a minute ago, as I mentioned in a comment above, haha -
Re: Light Function material texture tutorial?
work out what shape the light is mapping the texture to - try a checker pattern / lines / whatever once you've worked that out you just need to project the image you want onto that shape and bake the result to a texture it's probably a sphere for a point light but ive not tested it so I'm not sure
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