normal map brightess/contrast

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  MoP polycounter lvl 20

  Apr 2006

  Think about it, if you change the brightness or contrast you're changing the RGB values, and the normals are derived from the RGB values...

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  Ruz insane polycounter

  Apr 2006

  guess I should have thought about that more:)

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  Eric Chadwick admin

  Apr 2006

  You can do it, works OK but not great. Just make sure to renormalize afterwards or your specular may get screwed.

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  malcolm polycount sponsor

  Apr 2006

  Correct me if I'm wrong, but doesn't adjusting the contrast of the blue channel make the bump depth deeper?

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  MoP polycounter lvl 20

  Apr 2006

  Yep, that's correct. Gotta be careful though, if you get too dark on the blue channel it can look really odd on the model.

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  poopinmymouth polycounter lvl 20

  Apr 2006

  I have three different Actions for this.
  
  One auto levels each channel independantly, then backs off to 10% using the edit fade command. One does the same thing but only backs off to 20%, and the third backs it off to 30%.
  
  It does indeed alter the normals when you change the RGB, but sometimes you want that, and it makes it read better in game. This works much better on organic stuff, I always leave my mechanical stuff as is, other than fixing errors.
  
  

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