how could I make use of concavity and convexity maps to improve the skin?

When I created my ao map i also got a convexity, and concavity map. Do i use them in the same way as I do the ao map, a multiply node with the albedo fed into the bdsf of the disfuse node? I read about someone plugging them into the rougness but i dont know what that means. 

Comments

  • Richard HaseltineRichard Haseltine Posts: 111,382

    That's up to you, they do not correspond to any of the standard Iray shader proeprties but you can use them in any way that suits you (perhaps to cotnrol an overlay representing wear or dirt).

  • Richard Haseltine said:


    That's up to you, they do not correspond to any of the standard Iray shader proeprties but you can use them in any way that suits you (perhaps to cotnrol an overlay representing wear or dirt).

    how would i use a texture to control an overlay? I am not sure what that would look like in the shader editor.

  • UthgardUthgard Posts: 899

    You could make a geoshell with a dirt texture and drive the opacity with your maps, for instance, but you could also use said maps to determine the strength of the Diffuse Overlay Weight in the standard shader.

  • Richard HaseltineRichard Haseltine Posts: 111,382

    luckydurians said:

    Richard Haseltine said:


    That's up to you, they do not correspond to any of the standard Iray shader proeprties but you can use them in any way that suits you (perhaps to cotnrol an overlay representing wear or dirt).

    how would i use a texture to control an overlay? I am not sure what that would look like in the shader editor.

    Assumning it is a greyscale image just use it for one of the Strength properties, and then adjust the settings below that to get the desired effect. Or use it as a mask layer in Image Editor

  • GordigGordig Posts: 10,803

    luckydurians said:

    Richard Haseltine said:


    That's up to you, they do not correspond to any of the standard Iray shader proeprties but you can use them in any way that suits you (perhaps to cotnrol an overlay representing wear or dirt).

    how would i use a texture to control an overlay? I am not sure what that would look like in the shader editor.

    Are you working in DS, or some other program? The way your posts are worded suggests the latter.

  • Gordig said:

    luckydurians said:

    Richard Haseltine said:


    That's up to you, they do not correspond to any of the standard Iray shader proeprties but you can use them in any way that suits you (perhaps to cotnrol an overlay representing wear or dirt).

    how would i use a texture to control an overlay? I am not sure what that would look like in the shader editor.

    Are you working in DS, or some other program? The way your posts are worded suggests the latter.

    imported into blender i should have posted in the blender section. I didnt know i could use those maps in daz 

  • GordigGordig Posts: 10,803

    To add an overlay in a node-based shader, use your greyscale weight map as the mix input on a mix/add/multiply etc. node.

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