Postwork advice

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  • Pixel8tedPixel8ted Posts: 602
    edited January 2018
    TheKD said:
    Pixel8ted said:


    Ah good tips. I usually render fully built scenes, getting back into messing with 32bit renders. If you use them, you can do a beauty pass of anything you think you might need to isolate, and use that as a mask. Only issues I have had with that today, was with transparency on clothing. If there is clothing transparency, might be better off making a naked pass, so you can easily tweak the skin underneath without messing with the clothing, not sure, haven't tried the idea just yet. Sounds logical though lol.

     

    The only problem with the naked pass is you'd probably have to make some fake low opacity shadowing to sell it. With scene, full scene masking would be more difficult....maybe render scene once then a second time with everything except figure + hair then you could paste it into place so you could at least have the ability to easily grab the outer edge of your hair for selection. Then again, still easier to render again with hair fixed how you want or use Photoshop and paint in your fixes in post.

    Edit: If you did the second render figure + hair only, you might have to shift drag the figure +hair render into full render file. I'm thinking Paste in place might be unavailable...grayed out. It might also register in place as a smart object if you were to drag new file document into photoshop from outside Photoshop into the open render file with Photoshop in not full screen mode to get it to place as a smart object. (Not full screen = what I'm calling when you have Photoshop open on your desktop but not set fill complete screen. I'm not sure what that's really called. LOL.)

    Just found these tutorials I want to try on painting different types of hair from scratch. They look like they like good info + use built in Photoshop brushes.  Off hand, I think I'll try hitting the final result with a little Unsharp Mask + possibly a touch of noise faded out.

    https://design.tutsplus.com/tutorials/an-introduction-to-painting-realistic-hair-in-adobe-photoshop--cms-24251

    https://design.tutsplus.com/articles/how-to-paint-realistic-hair-in-adobe-photoshop-short-hair-beards--cms-25499

    https://design.tutsplus.com/tutorials/how-to-paint-realistic-hair-in-adobe-photoshop-braids-and-dreadlocks--cms-26738

    Post edited by Pixel8ted on
  • TheKDTheKD Posts: 2,711

    Yeah I just got done with a "nude pass" and see what you mean. It's missing the shadows from the clothes(It's just a stocking here in this case) and looks wrong just tweaking the skin. Kinda a bummer. For hair, I do my best from morphs and zbrush to make it look like it is hanging natural, but it's really an excercise in frustration. Even when I take hours fixing hair, isolating strand by strand, it never turns out looking believable to me. Anything outside an upright portrait pose makes me very mad lol.

  • TheKD said:

    Yeah I just got done with a "nude pass" and see what you mean. It's missing the shadows from the clothes(It's just a stocking here in this case) and looks wrong just tweaking the skin. Kinda a bummer. For hair, I do my best from morphs and zbrush to make it look like it is hanging natural, but it's really an excercise in frustration. Even when I take hours fixing hair, isolating strand by strand, it never turns out looking believable to me. Anything outside an upright portrait pose makes me very mad lol.

    Stack hairs. Stack many many hairs. The problem of trouble creating convincing movement tends to be because that movement shows the flat strands too much. If you have a whole bunch of hair with all different movement, it gets better, more like real hair.

  • Pixel8tedPixel8ted Posts: 602
    TheKD said:

     

    Stack hairs. Stack many many hairs. The problem of trouble creating convincing movement tends to be because that movement shows the flat strands too much. If you have a whole bunch of hair with all different movement, it gets better, more like real hair.

    That's a great idea and really easily done thanks to all the hair shaders that are available these days.

  • Griffin AvidGriffin Avid Posts: 3,816

    Anyone use hair (Photoshop and such) brushes in post?

    That seems to be a thing.

  • Pixel8tedPixel8ted Posts: 602
    edited January 2018
    TheKD said:

    Yeah I just got done with a "nude pass" and see what you mean. It's missing the shadows from the clothes(It's just a stocking here in this case) and looks wrong just tweaking the skin. Kinda a bummer. For hair, I do my best from morphs and zbrush to make it look like it is hanging natural, but it's really an exercise in frustration. Even when I take hours fixing hair, isolating strand by strand, it never turns out looking believable to me. Anything outside an upright portrait pose makes me very mad lol.

    I can think of four options that you might try to adjust the skin under your clothing items containing transparency. The one I think would work the best in your case would be a selective color adjustment layer.  A Hue/Saturation adjustment layer would do a similar job but the dialog is a little cruder with less options. Another option, that might work would be using a channel mixer adjustment layer but it's going to affect the whole image so probably too heavy handed. Fourth option would be to make a Color Range Selection but I think this would be more effort with probably worse results than either a selective color or hue/saturation layer which pretty much automate the hard part of the selection process. Now, Color Range might be an idea to try for making a hair selection for a figure rendered as part of a scene.

    Post edited by Pixel8ted on
  • freni-kynfreni-kyn Posts: 394

    I do a render of the character with hair on and no background or other things in the render.  That is the one I use as a mask over the original image. No need to use a brush to mask the character that way.   It does not need to be high quality but it does have to be the same size as the render that I like.  And really it doesn't even need lights since it is not going to ever be seen.  If I need the hair separate I make the figure a contrasting color, either pure white or pure black, so that it can be easily cut out.  Sometimes I have to do a full blown render of the background separate so that I can add blur to parts I want blurred. I do not like the built in perspective tools in daz3d.  I prefer more control over my image.

  • DireBunnyDireBunny Posts: 556
    freni-kyn said:

    I do a render of the character with hair on and no background or other things in the render.  That is the one I use as a mask over the original image. No need to use a brush to mask the character that way.   It does not need to be high quality but it does have to be the same size as the render that I like.  And really it doesn't even need lights since it is not going to ever be seen.  If I need the hair separate I make the figure a contrasting color, either pure white or pure black, so that it can be easily cut out.  Sometimes I have to do a full blown render of the background separate so that I can add blur to parts I want blurred. I do not like the built in perspective tools in daz3d.  I prefer more control over my image.

    I do pretty much the same thing. Lately though i have been re-painting the hair so it dosen't quite match up to the "mask" layer so now i do the hair first (seprate layer of coarse) and paste it on to the "mask"layer.

    When i first started out i read a ton of tutorials that wanted you to use whatever select tool and trace around the figure. i was like "yeah that's not really going to work for me." I mean I am pretty patient but one misclick and...

    @ avxp: I've used hair brushes before. I have a few sets of them, but i only used them once or twice before deciding they were not really for me, it might just be a lack of talent/practice (whatver word i'lm looking for) thing on my part though so can't really go by my experience with them.

  • dawnbladedawnblade Posts: 1,723

    agree with the above, learning composition is your 1st step in getting something that is "pleasing to the eye"

    That said my favorite videos for learning photoshop is anything by RafyA https://www.youtube.com/channel/UCB69iibkyOYlODhrwJlrzsw  just replace your photos with renders and your golden. 

    There's not much currently on my channel  https://www.youtube.com/user/dcartphoto/videos?view_as=subscriber&shelf_id=0&view=0&sort=dd  but I have an upload going as I am typing this, the 1st in a series covering using photoshop to produce a 3D composite.  Also if you have questions, about photoshop , you can ask there or in my art thread - linked in my signature. 

    Good luck and happy creating! 

    Thank you so much @deathbycanon for your video on rendering canvases and how to work with them in Photoshop!! smileyyes

  • tkdroberttkdrobert Posts: 3,606

    Anyone have advice on how to great dust trails from vehicles.  I want to do a scence with a bunch of military vehicles tearing up the Martial desert.  Can I do it insode DAZ or should I just do it in postwork.  If PS, any brushes recommended?

  • dawnbladedawnblade Posts: 1,723

    For DS, Fast Fog Iray by SickleYield might work. It has takeoff and tendril shaped smoke props.

    For PS, try one or a combination of Ron's brushes:

    Ron's Flying Dirt & Debris Particles

    Ron's Smoke

    Ron's Fog

    Ron's Fog II

    Ron's War Essentials

     

  • tkdroberttkdrobert Posts: 3,606

    I have fast fog..  I've used it with varying levels of sucess.  I'll try that along with some smoke and fog brushes I have.  I'm just having problems conceptualizing exactly how I'm going to do it in my head.  I guess I'll just have to go for it and experiment to see what works.

  • OdaaOdaa Posts: 1,548
    edited January 2019

    I second these: good sound starter advice on postwork in a safe-for-work package.

    tkdrobert: you might want to use google images or your equivalent to look at reference images of what the dust trails you're imagining looks like in the wild.

    Post edited by Odaa on
  • IceDragonArtIceDragonArt Posts: 12,759
    edited January 2019

    I learned 90% of my postwork from tutorials and you tube.  The other 10% is practice, practice, practice and don't be afraid to push buttons.  LIke someone else said, NEVER use the original, always either lock that first layer or save as a working file.  One of the best things you can learn to do is masking, and using the the different modes.  This particular piece doesn't really have very many layers.  There are a couple of mode layers - that is the drop down box that has multiiply, screen, soft light etc in it. - And a couple of textures in front of and behind her with masked applies so that its not too heavy on her skin.  Don't be afraid to apply something that seems lie its too bright or whatever, try different modes on it or lower the opacity.

    Edited to add that I did add a background image under the render.

    Post edited by IceDragonArt on
  • tkdroberttkdrobert Posts: 3,606

    I learned 90% of my postwork from tutorials and you tube.  The other 10% is practice, practice, practice and don't be afraid to push buttons.  LIke someone else said, NEVER use the original, always either lock that first layer or save as a working file.  One of the best things you can learn to do is masking, and using the the different modes.  This particular piece doesn't really have very many layers.  There are a couple of mode layers - that is the drop down box that has multiiply, screen, soft light etc in it. - And a couple of textures in front of and behind her with masked applies so that its not too heavy on her skin.  Don't be afraid to apply something that seems lie its too bright or whatever, try different modes on it or lower the opacity.

    Edited to add that I did add a background image under the render.

    Masking is something I've read about but failed to grasp or use properly I think.

  • DireBunnyDireBunny Posts: 556

    I learned 90% of my postwork from tutorials and you tube.  The other 10% is practice, practice, practice and don't be afraid to push buttons.  LIke someone else said, NEVER use the original, always either lock that first layer or save as a working file.  One of the best things you can learn to do is masking, and using the the different modes.  This particular piece doesn't really have very many layers.  There are a couple of mode layers - that is the drop down box that has multiiply, screen, soft light etc in it. - And a couple of textures in front of and behind her with masked applies so that its not too heavy on her skin.  Don't be afraid to apply something that seems lie its too bright or whatever, try different modes on it or lower the opacity.

    Edited to add that I did add a background image under the render.

     

    OMG i love that picture :D.  if i have one thing to add to is label the layers. for the longest time i never did, and when your working with 20 plus layers it gets damn confusing trying to remember  what layer was what.

  • FirstBastionFirstBastion Posts: 8,048

    I learned 90% of my postwork from tutorials and you tube. [snip]

     

    Your artwork has exponentially flourished. 

  • Griffin AvidGriffin Avid Posts: 3,816

    Your artwork has exponentially flourished. 

    I've said that too. Like, overnight, it just clicked to these incredible levels.

    I am always impressed.

  • Both DAZ and Photoshop are programs with a lot of capabilities. For someone like me who has limited time to work on things (and also, I'm impatient and can't sit through general tutorials), instead of just sitting down and watching tutorials, I find that I work and learn best on the go. Meaning, everything stems from a project, an idea of what I want to do. I look at reference photos, artwork I want to emulate, plan what I want my project to look like. Then, I go about it and for what I don't know how to accomplish, I search for discrete tutorials that cover that one thing only. Or, if I can't find anything, I ask my questions here in the forum, and people are super helpful. 

    Over time, you'll find that you have learned a lot, without needing to be overwhelmed from the get-go.

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