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how do you use the 4-layer Uber PBR MDR shader

GarrettDRGarrettDR Posts: 229
in Technical Help (nuts n bolts)

Does anyone have and information on how to use this shader? It is in the Default Resources folder. I am hoping to use this as a terrain shader where I can place grass, rocks, and snow on a large terrain and adjust the heights of each layer accordingly. I have placed texture maps in each of the layers, Base, Layer 1, Layer2, and Layer 3 but I am not getting any results.Thanks for any help!

Comments

  • NorthOf45NorthOf45 Posts: 5,838

    Strange that there hasn't been much talk about this new-ish shader. I think it slipped under the radar for most users. I saw it when it was included in the default resources, but, out of sight, out of mind...

    If you apply the shader to any suface (try a primitive sphere), you get something in each layer. Serves as an example of how to use it, I guess.

  • WendyLuvsCatzWendyLuvsCatz Posts: 41,222

    first I heard of it surprise

  • SzarkSzark Posts: 10,634
    edited January 2020

    Layer Weight channels 1 through to 3 all need masks to denote which parts are grass, rock etc. The example shader shows exactly how the shader works with the maps they have placed in there for us. It looks to me you start with say the soil in the base layer slot and then build it up from there with the lower down layer Weights with masks.

     

    The maps also tell us which is bottom and which is the top most layer, which most likely could be grass, leaves or/and twigs for example.

    Post edited by Szark on
  • lilweeplilweep Posts: 2,841
    edited February 2020

    Is this 4-layer shader basically the same as this product below?  Can you tile each layer independently?

    https://www.daz3d.com/muelsfell-multilayer-iray-terrain-shader

    http://docs.daz3d.com/doku.php/public/read_me/index/60675/start

     

    Post edited by lilweep on
  • PadonePadone Posts: 4,243
    edited February 2020

    The bump maps don't seem to work for me .. does anyone get the same issue ?

    uber4.jpg
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    Post edited by Padone on
  • PadonePadone Posts: 4,243
    edited February 2020

    It comes out it's just an unfortunate choice of diffuse textures. They use diffuse textures with a strong bump baked in, so the "real" bump doesn't appear clearly. It gets better if I remove the diffuse maps, now I can see the normal maps. I'm not completely sure they are mapped correctly on the sphere though. I mean, the light comes from the right but "the hole" in the top layer doesn't seem so.

    uber4-2.jpg
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    Post edited by Padone on
  • CriosCrios Posts: 3,082

    SOrry, how work Weight Map in this shader?

  • nakamuram002nakamuram002 Posts: 822

    Play around with my Argyle Shaders.  There is a document that explains the 4-Layer Uber Shader.  For best results install in ..."...DS4Content\Shader Presets\Iray\MN\ArgyleShaders".

  • nakamuram002nakamuram002 Posts: 822
    edited July 15

    Sorry, I cannot post my .zip file to this forum.  Cannot post it as a .jpg or .txt file either.  Where would be a good place to post it with minimal account creation hassels?  

    Post edited by nakamuram002 on
  • Richard HaseltineRichard Haseltine Posts: 110,853

    There is a size limit, but what is it you want to post? if you hae a Google or Microsoft mail account you have a chunck of data space to which you could upload and then enable sahring to post a link.

  • nakamuram002nakamuram002 Posts: 822
    edited July 15

    I forgot that I posted my shaders and documentation on Renderosity back in 2021.  Here is the link: https://www.renderosity.com/freestuff/items/90485/adjustable-argyle-shader-presets-for-ds-415416.

    Even if you do not like argyle, the documentation should be useful as an example.

    Post edited by nakamuram002 on
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