[Tutorial] Greebles.

[Tutorial] Greebles.

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Snipawolf
Posts: 4357
Joined: 12 Dec 2005, 01:49

[Tutorial] Greebles.

Post by Snipawolf »

Alright, now this is probably gunna be a fairly long tutorial, bare with me.

You should have a fairly advanced knowledge of Gimp/PS. You need to undo a lot, so be ready to undo a lot with the hotkeys, not with your mouse.

Start off by making a metal texture. I make mine by using filters -> Render -> Clouds at the default size, with maximum detail (15).

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Afterwards, fill it in with the base color of your metal. I like a metal that is about medium, but it can always vary greatly. The bucket settings should have opacity (70%), Fill Whole Selection, and that is about all you should need.

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Afterwards, use Noise -> Scatter RGB with correlated noise checked, independant RGB unchecked, and the RGB settings at .10. The higher they are, the more rough the metal is, 2 pics will be provided.

.10
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.20
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We'll use .10 (or, I will). Now, we are going to make this whole square the bumped up area, but it can be used for lots of different things, too.

Select pencil. Set opacity at .40 percent. Select "full/perfect" white. Alright, now this area gets kinda rough. Try to follow along as best you can. Now, zoom in to 800 percent or w/e you are comfortable pixel painting at (yes, single pixels). Now, the border should be at least 5 or 6 to be noticable, and even larger to make it stick out more. It shall be 8 pixels wide, to help demonstrate.

Alright, make a straight line somewheres in the middle, fairly far from the edges. REMEMBER TO UNDO YOUR FIRST PIXEL WHEN YOU GO TO MAKE THE LINE! (If using shift) IF NOT, IT WILL MAKE THAT PIXEL ABOUT 80% BRIGHTER INSTEAD OF 40!
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Alright, see how it is barely visible? It will be more than enough visible when the whole side is accomodated to fit.

Alright, you can see the area that will be brightened. Actually, you don't, you see what you think is the area that will be brightened. Now, this part is hard to explain, I will highlight in red what you must color in now.

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Now, do the same on the other side. You should end up with this.

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Alright, now, color in the area BETWEEN the two diagonal lines.

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Alright, now you can see the top. Before we do the sides, we do the bottom, at the same settings, except with full black. It isn't harder at all, just thinking upside down from the previous teachings.

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Alright, now you can see the basics. Set opacity at 20 percent, and select white again. Color in the areas of the side using the tips of the trapezoids. Should be pretty easy, but it takes a while. It should end up like this.

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Alright, now, the moderately confusing part. Select opacity at 40 percent again. You can keep white for now. Go over the edge where the "top" of the square is. Don't do the bottom where the black is, though. Only color in ONE pixel.

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Now, after that, select black again, and do it along the bottom line of the square up top.

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Finished yet? No :twisted:

Now, go back to white, and do it along the diagonal edges at the top of the pic. Not the top of the square, but the diagonal edges that separate the 20% white from the 40%. Like this.

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Alright, now do it with the black/40% combo on the bottom two.

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Okay, and the last step, put the black at 30 percent opacity, and make a complete ring around the very edges of the pic. Yes, even go over the areas you just highlited, and, you are finished, congratulations, I have just imparted my best texturing knowledge into you...

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Well, how does it feel, pretty damn nice, huh...

Thanks for listening, another thing you can do is making the model and texture work together, to increase the greatness of your texture.

Examples follow:

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Edit: Also, another usage showing off a little conformity.

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Edit2: The same greeble above from the UV map:

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Last edited by Snipawolf on 11 Dec 2007, 00:27, edited 4 times in total.
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rcdraco
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Joined: 22 Nov 2006, 02:50

wow

Post by rcdraco »

I'm not sure, but that looks amazing, and seems pretty simple to do as well, maybe I should get going on my retextures for BloX.

Screw it, this will be my new texturing, it makes the tanks look amazing.
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Saktoth
Zero-K Developer
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Post by Saktoth »

Wouldnt it just be easier to use an effect, either lighting effects or bevel/emboss of some sort?
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Snipawolf
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Joined: 12 Dec 2005, 01:49

Post by Snipawolf »

I dunno, never seen any on gimp, lemme go check through my filters...

Edit: Nope, a standard bevel isn't on gimp, and would most likely look worse anyways..

Not to mention, it can't conform...

Edit: Lighting effects :roll:

Good luck, I have no idea how the hell that would work, lol...
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aGorm
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Post by aGorm »

Those of us with photoshop can use bevel and embos ect... but learn how to use them WELL. If you just click bevel it will look crap. (well most of the time).

And sometimes its just better to paint it anyway. Not everything can be done with layer effects. And as someone that uses loads of layer effects I should know...

aGorm
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imbaczek
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Joined: 22 Aug 2006, 16:19

Post by imbaczek »

wouldn't that be much easier to achieve by alpha-masked layers? less error-prone and undo-happy IMHO.
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rattle
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Post by rattle »

I'd use a noise layer with custom alpha map rather than splatting it on top as well.

Yeah multiple layers = more freedom and less fuck up.
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