Loading...
> >

Iray: Apply "iray shader" to prexisting textures?

ScavengerScavenger Posts: 2,674
edited December 1969 in The Commons

I've only started reading up on iray, SY's tutorials, the threads, but a question that I imagine I'll eventuall find an answer to, but it's a big make or break one....are there "shaders" or something... you can apply to prexisting textures, which just makes them work, rather than replacing them?

Such as, I select a v4 character and click the button and she's better in Iray, rather than replacing the character's skin with some new iray skin?

Comments

  • DestinysGardenDestinysGarden Posts: 2,553
    edited December 1969

    I'm sure others will chime in and give very different answers, but my answer for you is "sort of." The 4.8 builds of DAZ Studio include something called Iray lights and shaders starter pack, or something along those lines. In your content folder/shader presets there should be an Uber Iray base shader, among other things.
    How well stuff is going to auto convert depends on a few things, like what 3Delight shader you started with, where the texture maps are in the original character, etc. Some things will convert better than others without a lot of futzing.
    Another good starting point might be to pick up one the customized Iray characters or skin settings presets already in the store, and then manually replace your maps in the appropriate places.
    Definitely also try to render the existing 3Delight materials too. I have found "much better than expected" to "really super good" results on almost everything I have let Iray auto convert for me.
    Best of luck.

  • ScavengerScavenger Posts: 2,674
    edited December 1969

    Thanks DG.

    Also just found this in SY's Getting started: " Leaving that selected, go to your Product Library and Shader Presets/Iray Uber Defaults. There is a preset here called !Iray Uber Base. Double-click on it. This isn't really a shader itself, it just converts all selected shaders to Iray.. " So at least a starting point!

  • Ghosty12Ghosty12 Posts: 2,080
    edited December 1969

    I gather you mean to use the Iray Shader on an existing texture? If that is the case select the surfaces you want changed, then with the Iray shader you hold the CTRL key (PC's not sure on Macs) and double click the shader you want and a small menu will pop up you should see one tab say Selected, the other say All click that one to bring up a drop down menu and select ignore then click ok.. What that does is enables the Iray shader without wiping out the original textures..

  • kyoto kidkyoto kid Posts: 41,859
    edited December 1969

    ...you can simply apply the Iray Base Shader which doesn't overwrite the texture. I do this all the time and it gives me the Iray sliders for that particular surface.

  • ScavengerScavenger Posts: 2,674
    edited December 1969

    Thanks all! I found I had my dates wrong for an art contest and decided that I could try to do the scene in iray..asuming it doesn't do the crash or kernal panic it seems to like to do.

  • SpottedKittySpottedKitty Posts: 7,232
    edited December 1969

    Note that if you're using G2F/G2M, there are shader converters for them in each figure's Materials folder; they work just like the Iray Uber Base converter. These also automatically alter the glossiness of things like the finger and toenails, and apply the proper water materials to the eyes for a good shiny reflection.

  • BeaBea Posts: 753
    edited December 1969

    Where do I find the iray uber base shader? I know a stupid question but I don't know where to look

  • Nyghtfall3DNyghtfall3D Posts: 813
    edited December 1969

    Bea said:
    Where do I find the iray uber base shader? I know a stupid question but I don't know where to look

    It's the first one among the list of Iray shader presets in your content library.

  • BeaBea Posts: 753
    edited December 1969

    But where, I can't find them anywhere?

  • Nyghtfall3DNyghtfall3D Posts: 813
    edited June 2015

    Content Library > DAZ Studo Formats > Studio > Shader Presets > Iray > DAZ Uber > !Iray Uber Base

    Post edited by Nyghtfall3D on
  • BeaBea Posts: 753
    edited December 1969

    Helps to install them :) :) Sorry

  • Nyghtfall3DNyghtfall3D Posts: 813
    edited December 1969

    :: slap ::

    ;)

  • RAMWolffRAMWolff Posts: 10,343
    edited December 1969

    LOL Bee

  • BeaBea Posts: 753
    edited December 1969

    :) :) :) I know :)

  • Oso3DOso3D Posts: 15,085
    edited December 1969

    It should also be noted that for a bunch of shaders, the render engine will autoconvert them so you don't even need to change them.
    I think it's still better to convert them to lighten the load of a render and so you can see any weirdness that crops up -- for example, some textures end up with Glossy 0, which ends up lighting the surface up too much. It also doesn't take a lot of familiarity to tweak the surface a little to make it better; if something is supposed to be metal, for example, just shrugging and setting Metalicity to .8 or 1 can help a lot.

    Some special shaders just won't work in Iray, flat-out. (pwEffects, dirt shader. Alas)

  • SpottedKittySpottedKitty Posts: 7,232
    edited December 1969

    timmins.william said:
    Some special shaders just won't work in Iray, flat-out. (pwEffects, dirt shader. Alas)

    That's because they're custom-built 3Delight shaders, not the default shaders. There's no way any of these will ever convert to Iray, the only thing to do is reverse-engineer how they've been put together and create Iray settings that do the same things. It's exactly the same situation we've had for years with Poser procedural materials created in the Shader Room not working at all in D|S — the two systems are just too different.
  • NovicaNovica Posts: 23,924

     

    SpottedKitty said:

    Note that if you're using G2F/G2M, there are shader converters for them in each figure's Materials folder; they work just like the Iray Uber Base converter. These also automatically alter the glossiness of things like the finger and toenails, and apply the proper water materials to the eyes for a good shiny reflection.

    EEEEEK! They really, really lighten the skin. I can't get that to only go on the Cornea, Eye Reflection, Irises, etc over in surfaces when using the Surface Tool. Have the eyes selected in Scene in addion to the individual parts in Surfaces. When I click on the "Iray Optimized Genesis 2 Female Mat in Content Library, it changes all the skin, the entire ball of wax. And Carissa becomes a Caucasian with a lot lighter skin. How do you do only the eyes?

  • NovicaNovica Posts: 23,924

     

    SpottedKitty said:

    Note that if you're using G2F/G2M, there are shader converters for them in each figure's Materials folder; they work just like the Iray Uber Base converter. These also automatically alter the glossiness of things like the finger and toenails, and apply the proper water materials to the eyes for a good shiny reflection.

    EEEEEK! They really, really lighten the skin. I can't get that to only go on the Cornea, Eye Reflection, Irises, etc over in surfaces when using the Surface Tool. Have the eyes selected in Scene in addion to the individual parts in Surfaces. When I click on the "Iray Optimized Genesis 2 Female Mat in Content Library, it changes all the skin, the entire ball of wax. And Carissa becomes a Caucasian with a lot lighter skin. How do you do only the eyes?

  • Oso3DOso3D Posts: 15,085
    If you ctrl-click, the first option can be changed to 'only selected.' With darker skin I highly recommend changing translucency weight to .2 or .3, and you want to play with gloss. You can also add base color if it's still not dark enough, but I recommend making sure your lighting is about right first.
  • SpottedKittySpottedKitty Posts: 7,232
    Novica said:

    And Carissa becomes a Caucasian with a lot lighter skin.

    I don't have Carissa, but I do have Nabila, who's even darker. The base shader conversion did an OK job, all I needed to do was tweak the lips settings to deal with a nasty case of Super Gloss Spray-on Varnish. The rest of the skin had a good faint sheen as if it was just slightly sweating, although I think a different lighting setp (I was just using the default environment) would probably have benefitted from a bit more generalised skin tweaking.

  • Oso3DOso3D Posts: 15,085
    My skin advice : Do the Iray optimized skin thing Select skin + lips Convert to PBR Specular/glossy Get rid of any textures in glossy and top coat. Glossy weight .6 Glossiness .4 Glossy color 192 value gray Top coat weight .4 Top coat fresnel, ior 1.34 Top coat color 192 gray Top coat glossiness .8 May need to adjust translucency weight down. If you need more wetness to the skin, shift weight from Glossy to Top coat. (For very wet skin might want to up the top coat glossiness, too)
  • Melissa ConwayMelissa Conway Posts: 590
    edited September 2015
    ghosty12 said:

    I gather you mean to use the Iray Shader on an existing texture? If that is the case select the surfaces you want changed, then with the Iray shader you hold the CTRL key (PC's not sure on Macs) and double click the shader you want and a small menu will pop up you should see one tab say Selected, the other say All click that one to bring up a drop down menu and select ignore then click ok.. What that does is enables the Iray shader without wiping out the original textures..

    Is it possible to combine original texures with the Simple Fabric Iray Shaders? When I hold the CTRL key down and load the shader, I get a jumbled mess...

    tx

    EDIT: Nevermind. After hours wasted trying to figure this out, I went ahead and bought an Iray fabric shader that included the option to preserve existing maps.

    Post edited by Melissa Conway on
  • Aurora_DreamAurora_Dream Posts: 5

    Try Iray Skin Converter for V4 (google)

Sign In or Register to comment.