“Exporting” Plot Theme “Classic”

Question

I really like the 3d plots in Mathematica with the PlotTheme option set to "Classic". I wonder if there's a way to export the colormap (RGB,alpha-array) for use in some other open-source software and also which function is used to chose the color.

I'd be very glad, if you can give me a (hint to a) solution.

TIA

Answer 1

The "Classic" theme for Plot3D colors the surface white and uses custom lighting. It can be recreated with these options:

Plot3D[Sin[x + y^2], {x, -3, 3}, {y, -2, 2}, 
  PlotStyle -> White, 
  Lighting -> {
    {"Ambient", RGBColor[0.312, 0.188, 0.4]}, 
    {"Directional", RGBColor[0.8, 0, 0], ImageScaled[{2, 0, 2}]},
    {"Directional", RGBColor[0, 0.8, 0], ImageScaled[{2, 2, 2}]}, 
    {"Directional", RGBColor[0, 0, 0.8], ImageScaled[{0, 2, 2}]}
  }
]

I'm not sure how to export lighting or recreate it in other applications though.