hello
how can I get an oil slick texture I've gone through this https://docs.arnoldrenderer.com/display/A5AFCUG/Thin+Film
and understand how to get the irriedicient look but I am looking for more of an oil spill look
something like the picture
Shader code -->
https://pastiebin.com/5fdacb15f21d0
Might be useful, looks somewhat down the road, just pull the Time slider and everything glides around moves over fbm modulation.
Now, this is a characteristic simplex modulation, where both compressed bands and plamages is a theme, you can pipe the shader through a Color Correction node and work on hue/saturation if you want to tweak hardcoded color set.
You could also try adding noise->rampRGB->specular_color or just use your texture map-> specular_color.
