The secret of the flake shader

[rray]

Hey

I wondered for quite some time how the car paint shader's "flake" effect works internally.

It must be some kind of normal perturbation, but it doesn't seem to be possible to recreate that effect using normal/bump maps. I'm sure there must be something else to it, possibly a layering of multiple normal maps could work. Would be curious if somebody had more information on it!

Cheers,
Ray

[Mathaeus]

You can take look at 3delight's emulations (3dl addon / data / rsl ), most of them are textual sl files, together with comments. These files probably aren't the same thing, but anyway.

[rray]

Thanks Anto, that's a nice resource, would be great if all shaders would be as accessible as the 3delight ones.