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Questions, Discussion, Tutorials

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  • Chop LogicChop Logic Registered User regular
    edited February 2013
    Can anyone help me with scanning line art? I've looked at a ton of tutorials but keep not being happy with my final product.

    I scan it as color at 600 dpi, hit it with unsharp mask at 500 / 1 /5, then run a threshold over it. Then I just scale it down to about 750 pixels at 72 dpi. Since I'm taking such a huge file and shrinking it, I figure it should look nice, but I always end up with something sort of pixelated. Like this:

    http://summer-hand.com/wp-content/uploads/2013/02/SunFog_01_LR.jpg

    (This image is inverted and put on yellow by the way, but I feel like it shouldn't matter.)

    So, what can I do? I'm worried if I upload it as a TIFF or something to my website it may take too long to load? I feel like this should be simpler. Anyone good at this?

    Chop Logic on
  • Are you resizing in Photoshop?
    If you are, you might have set the "resample image" setting to "Nearest Neighbor", which does a very rough interpretation- basically to determine what each pixel in the resized image is going to be, it just takes an area that's being sized down and picks one pixel in it to win out to be included in the new, smaller image.
    If you set it to Bicubic or bilinear, it should smooth things out more, because it takes that same area and figures out what the average color of that area is, and uses that color for the new pixel.
    You might want to try it with each of the possible settings to see what works best.

  • Chop LogicChop Logic Registered User regular
    edited February 2013
    I'm using this program called GIMP, it's sort of a ghetto version of photoshop. However, I'm thinking it has more to do with the method with which I'm going from the color scan to the thresholded completely black and white image. I'm doing some experiments with scanning at 1200 dpi and then shrinking it down. Do you have a particular method you use if you are scanning in an ink drawing or something?

    Thanks for responding, by the way.

    Edit: I'm sort of realizing it's the threshold filter. I can't get my image to be just straight black and white without pixelizing it. If anyone has any tips on this I'd appreciate it.

    Chop Logic on
  • Angel_of_BaconAngel_of_Bacon Moderator mod
    edited February 2013
    Well if you're setting your threshold to make everything completely black and white on a pixel level, that's going to make things less smooth; if you set it so there is still a bit of grey in there at the pixel level, it'll be less rough. (Personally I'd go with Levels or Curves instead of Threshold because they offer a bit more control on this sort of thing...I don't know what the equivalents in GIMP are.)

    Now, if you've got an image that is purely black and white and is crazy high resolution, and you scale it down with the right settings, it may look perfectly smooth in the end- but if you scale it down with the wrong settings, it'll still look jaggy.

    Looking up how GIMP scales images, you're going to want to play with the "interpolation" field to see what setting works the best- it'll be the same thing I was talking about in PS.

    Angel_of_Bacon on
  • Chop LogicChop Logic Registered User regular
    edited February 2013
    I'm thinking that using curves is the answer. I don't totally get the logic behind it, to be honest, but just moving the curve down generally in the lower right direction is making the image almost entirely black and white, without pixelating it. I'm going to play around with this and see how it turns out. This could be my answer, thanks.

    edit: Hey man, curves was totally the answer. Everything is looking good now, you totally saved my night, thanks. I would not have thought to try that.

    Chop Logic on
  • SpaceMooseSpaceMoose Registered User regular
    edited February 2013
    Searched for this on the forum to see if it ever ended up being put in this thread but didn't see it.

    http://www.ctrlpaint.com has been very helpful for me, and could be for other beginners.

    edit: though I believe a vid of theirs was linked above. I just wanted to call it out.

    SpaceMoose on
  • FlayFlay Registered User regular
    edited February 2013
    EDIT: The previous question was kind of dumb, but here's a better one: does anyone have any links to a video of someone drawing a still life using ONLY a pen? I've tried, but without construction lines I find it almost impossible.

    Flay on
  • ninjaininjai Registered User regular
    edited February 2013
    Flay wrote: »

    I'd suggest choosing one thing you'd like to focus on, and then drawing it a lot. I'm doing an exercise at the moment to draw a hundred faces, which has taught me a lot, but you could try drawing a hundred arms or a hundred eyes, or anything else that you struggle with.

    EDIT: Check out this video



    I was actually looking for this, I read it before you put the video.

    My question is, I've been drawing heads, and now that I've been drawing them (haven't finished 100 yet) I notice that I have a pretty big problem with the pieces of the head, eyes, noses, lips, etc. Should I keep going with the 100 heads til I'm done, or pause and focus on these other weak areas that are stymying my growth in the overall area?


    I had a second part to the question about how long I should be spending on each drawing, but the video answered that for me.

    ninjai on
  • TamTam Registered User regular
    This dude seems to have a pretty comprehensive guide to perspective
    http://www.youtube.com/user/SunnySiuOnline/videos?view=1&flow=grid

    beginners might find it useful while those Carl Dobsky videos are still down

  • Lewis RiceLewis Rice Registered User regular
    hey dudes, I was wondering about the best way to file all the photos and illustrations I've saved to my computer. Theres so many of them and its so frustrating to navigate through them all. Do you think there are good programs for doing this? I was thinking about tumblr and blog like tags so that you could type in keywords that would relate to each image. How do you organise the images you save to your computer? Is it a deep layer of folders? Some program that helps organise them all?

  • tynictynic PICNIC BADASS Registered User, ClubPA regular
    Folders can get messy quickly, plus there's the issue of overlaps.

    I actually started tagging all my reference/inspiration images according to eg colour, medium, subject, because OSX allows you to assign keyword tags to files, which can then be used to search. I'm sure there are equivalents for other operating systems, but I couldn't guess at specific programs.

  • SeraphSwordSeraphSword Registered User regular
    Here's one possibility:

    http://silkwoodsoftware.com/index.html

    Haven't used it myself, since I just tend to save things to relevant folders when I make them, but it could be useful.

    Mastery is the result of ceaseless error, combined with ruthless self-appraisal.
  • Lewis RiceLewis Rice Registered User regular
    Both perfect options! Luckily I have OSX and was just not aware of that great feature. Will have to start tinkering with that!

  • tynictynic PICNIC BADASS Registered User, ClubPA regular
    oh cool. Probably the easiest way to do a lot of files is to use tagit, which is free and then you can tag in batches.

    http://www.ironicsoftware.com/tagit/

  • Lewis RiceLewis Rice Registered User regular
    yesss yessssssssss! thanks!

  • ninjaininjai Registered User regular
    Line.

    Go look at my thread, I'm fucking bad at it. How can I control my line quality?

    Anyone have any line tutorials or lessons?

  • FlayFlay Registered User regular
    edited February 2013
    It's only the first lesson of the series, but the exercises in this video helped me a lot.

    Flay on
    ninjaiRed Raevyn
  • Tidus53Tidus53 Registered User regular
    How do I get less choppy lines in photoshop, or drawing in general? Every time I doodle something and erase all the sketch lines it just looks weird without all the "background" to it.

  • NibCromNibCrom Registered User regular
    Lewis Rice wrote: »
    hey dudes, I was wondering about the best way to file all the photos and illustrations I've saved to my computer. Theres so many of them and its so frustrating to navigate through them all. Do you think there are good programs for doing this? I was thinking about tumblr and blog like tags so that you could type in keywords that would relate to each image. How do you organise the images you save to your computer? Is it a deep layer of folders? Some program that helps organise them all?

    Adobe Bridge is good for this. Metadata and such.

  • DrScientistDrScientist Registered User regular
    Does anyone know how to get GIMP to work like a real pencil does? I've tried the pencil, but the default pencil in the program doesn't really give me the same feel. I've tried setting things up with other brushes too and just can't seem to get anything to go. I've done some Google searches and can't seem to find a tutorial involving this at all.

  • tynictynic PICNIC BADASS Registered User, ClubPA regular
    Short answer is, you probably won't. GIMP does pretty well for freeware, but it's not got the brush flexibility to do really good pencilling or inking work. And to be honest, I wouldn't even use Photoshop for those. If you're willing to part with some money, check out PaintTool SAI, Manga Studio or Sketchbook Pro. If you want to stick with freeware, download Sketchbook Express - it's not great for painting but it does have excellent pencil brushes.

  • FlayFlay Registered User regular
    Photoshop CS2 is also free.

  • ninjaininjai Registered User regular
    edited March 2013
    Starling_City.png
    So I know 1, 2 and 3 point perspective from a basic theoretical level. How does perspective in a thing like this work? Where the horizon is not on the screen and what feels like a billion vanishing points

    ninjai on
  • m3nacem3nace Registered User regular
    A lot of people simply have it under their skin, while some work in a bigger format. Something I've found to be particularly helpful for something like this is epic games' Carapace, when working digitally.

  • egakuegaku Registered User regular
    ninjai wrote: »
    How does perspective in a thing like this work? Where the horizon is not on the screen and what feels like a billion vanishing points

    I don't know perspective very well, but this still looks like 3 point to me. Here's a crappy paint over.
    OV147e0.jpg

    The plane of the roads (blue and green) vanish really far off the top and left and the vertical plane of buildings seems to converge just off the bottom of the image.

  • ninjaininjai Registered User regular
    how would you plot those points on an actual page? seeing how it doesn't fit at all. I never understood taht :C

  • egakuegaku Registered User regular
    I suppose on actual paper you could use an extra large piece of newsprint underneath to mark the points and a yardstick or something to lay down the guides, or just guess.

  • MolybdenumMolybdenum Registered User regular
    Where do I need to start to use a tumblr as a portfolio website?

    Steam: Cilantr0
    3DS: 0447-9966-6178
  • ChicoBlueChicoBlue Registered User regular
    egaku wrote: »
    I suppose on actual paper you could use an extra large piece of newsprint underneath to mark the points and a yardstick or something to lay down the guides, or just guess.

    Yeah, this is pretty much it.

    Large drawing tables and long rulers.

    Some artists will draw out their perspective setups pretty small, make a good grid and then blow it up on a photocopier.

  • JohnTWMJohnTWM Registered User regular
    ChicoBlue wrote: »
    Some artists will draw out their perspective setups pretty small, make a good grid and then blow it up on a photocopier.
    oh that is an awesome idea. I had had similar issues with this but thats almost a perfect solution

  • AbdhyiusAbdhyius Registered User regular
    I want to buy some markers. I want to be able to colour my doodlings, pencils leave me wanting.

    Any tips on what type and kind of markers? And paper, for that matter?

    ftOqU21.png
  • IrukaIruka Registered User, Moderator mod
    Markers get crazy expensive, fast. Do you have a budget?

  • AbdhyiusAbdhyius Registered User regular
    Iruka wrote: »
    Markers get crazy expensive, fast. Do you have a budget?

    the budget of a student with no use for them other than to doodle. So... cheaper would be better. But not as cheap as to not be worth the bother. I've got decent amounts of cash. Can trade less beers for more markers.

    ftOqU21.png
  • IrukaIruka Registered User, Moderator mod
    Copics are the top of the line, but even a small set will run you 30ish bucks. Still, if you arent looking for a full color spectrum, I think its worth it just to buy 5 or 6 for doodling.

  • AbdhyiusAbdhyius Registered User regular
    Iruka wrote: »
    Copics are the top of the line, but even a small set will run you 30ish bucks. Still, if you arent looking for a full color spectrum, I think its worth it just to buy 5 or 6 for doodling.

    in the store I found 6 copics would cost me 300 kr (~52 bucks)

    not... too awful.

    A moratorium on drinks other than beer should get me a decent set pretty quick.

    ftOqU21.png
  • AbdhyiusAbdhyius Registered User regular
    then final questions: what colors are priority? and what should I get after I get those?

    I feel like building a collection of them. Refills seem pretty cheap.

    ftOqU21.png
  • AbdhyiusAbdhyius Registered User regular
    there are so many hues and I'm scared.

    ftOqU21.png
  • peacekeeperpeacekeeper AustraliaRegistered User regular
    look up some vids of adam hughes talking about copics he uses

  • MolybdenumMolybdenum Registered User regular
    edited March 2013
    -Copics are delicious but Prismacolor is much, much, much cheaper and still decent.
    -Promarkers (Letraset) are more or less Prismacolors; I'm usually hard-pressed to tell the difference. Both are dryish and need some layering to build vibrance. I'm a huge fan of Letraset's Trias, which are basically their Promarkers with interchangeable ink and tips.
    -AD (chartpak) markers bleed like a Hemophiliac with Renfield's syndrome, smell super bad, and tend to be much darker than the label would have you think, but they are fat, wet, and super-richly saturated.
    -In Korea I used Touch (shinHan) markers, which are mind-blowingly cheap (<$1 per) but less vibrant and more dry and spotty than anything else I've used. They get the job done though; not sure how available they are. Edit- on eBay you can find them $4 for 3, free shipping from China. I just ordered some and I'll let you know how that turns out in however many weeks when they show up.

    Keep in mind that bleed and colors and interaction with other mediums will all be affected by what paper you're using, so you may want to skip the copics and buy some cheaper markers + a marker pad. Regular boring old bond paper works fine too, but you should at least try marker paper to see the difference.

    What colors you'll need depends on what you're drawing. Architectural or Product rendering demands grayscale markers; animation or character art lots of full-saturation colors.

    Molybdenum on
    Steam: Cilantr0
    3DS: 0447-9966-6178
  • AbdhyiusAbdhyius Registered User regular
    edited March 2013
    Might start on the cheaper ones. Availability is also a thing.

    Full-saturation colors sounds like the thing, although since I'm an engineering student dabbling in some product rendering is something I've wanted to do (I already spend far too much time on my assignments making sure the technical drawing bits and the math looks good)

    EDIT: Adam Hughes; good suggestion! Neat shit.

    Abdhyius on
    ftOqU21.png
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