AuthorTopic: Pixel Circle  (Read 13727 times)

Offline Matriax

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Pixel Circle

on: January 14, 2006, 09:23:15 pm
Hello!

I making tutorial of circles. And i view in psp, photoshop, corel draw, paint, etc... the circles are wrong.

In ths image are the perfect circles (without anti-alias)




Perfect circle = A circle made with a curve x4.


And the PSP until with anti-alias the Circle not is perfect




Any program can make perfect circles without AA ¿?

Offline Kazuya Mochu

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Re: Pixel Circle

Reply #1 on: January 15, 2006, 01:44:15 am
on photoshop you can flood fill a non anti-aliased marquee selection

try making some guides, and then making the selection

circles in photoshop are ok for far..

maybe in psp you have sub pixel precision. I dunno

Kaz
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Offline .TakaM

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Re: Pixel Circle

Reply #2 on: January 15, 2006, 08:58:11 am
yeah its always bugged me how in mspaint the circles are never completely symetrical (most of the small size ones are) but for the bigger ones like.. 10 pixels and up, Ive always flipped and rotated it ontop of itself until its completely symetrical, if you get what i mean
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Offline Andy Tran

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Re: Pixel Circle

Reply #3 on: January 15, 2006, 08:59:37 am
 I would recommend graphicsgale. It's got the circle shape tool for making perfect circles without anti-alias or with anti-alis I hope that helps :D. . 

Offline Helm

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Re: Pixel Circle

Reply #4 on: January 15, 2006, 09:15:06 am
how is this important, I do not understand....

Offline Mr.Modem

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Re: Pixel Circle

Reply #5 on: January 15, 2006, 09:46:44 am
I almost never use the circle tool so I haven't really thought about it. But I'm pretty sure Pro Motion does pefect circles.
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Offline Matriax

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Re: Pixel Circle

Reply #6 on: January 15, 2006, 11:59:38 am
Helm,
Quote
how is this important, I do not understand....

You think make perfect circles is not important ¿? For my, and for make the tutorial of circle i need make perfect circles to create balls, etc... and if the circles not are perfect...

In this image you can understand the tutorial, and the importantce of make perfect circles.



The tutorial is how to make balls, spheres.. , ilumination, texturize balls (for make rocks,etc..), insert text in balls etc.. in a seconds :)


Kazuya Mochu,

A friend make a circles in photoshop and the circle are not perfect. Are symetrical yes, but not perfects:

Example:



If view the circle (30x30) made in PhotoShop is symetrical, but is not perfect ¿not?

-------

Andy Tran/Mr.Modem

Oks, i will download ProMotion and GraphicsGale for view how make the circles


Thx all !!

Offline Matriax

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Re: Pixel Circle

Reply #7 on: January 15, 2006, 12:11:10 pm
Jeje Graphics gale not make perfect circles.. not are simetrical..., i downloading Pro Motion....

Offline Helm

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Re: Pixel Circle

Reply #8 on: January 15, 2006, 12:49:41 pm
I never need PERFECT primitives for pixel art. Every pixel is pushed anyway, to get the effect I want. The res is so small, why would I or any pixel artist that tweaks manually later on as they should, care if the primitive tool is uneven?  Matriax, as with your other 'tutorials' I fear -whereas interesting- they are only useful to yourself. What with the five, six, seven, twenty five coloured cubes you were making in the past, and now this new ball 'tutorial'.

Offline Matriax

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Re: Pixel Circle

Reply #9 on: January 15, 2006, 03:19:22 pm
Quote
What with the five, six, seven, twenty five coloured cubes you were making in the past, and now this new ball 'tutorial'.


The cubes etc... i made in the past not is for a tutorial, is for practice with colors, isometric, ilumination etc.. and have a example of color palettes...

Quote
'tutorials' I fear -whereas interesting- they are only useful to yourself

Well, i think the tutorials is interesting and i recived comments that the tutorials are useful for other people not only for me (Swiming pool, isometric reflects...) or what you say? (Sorry my english is not very good..)


Quote
I never need PERFECT primitives for pixel art. Every pixel is pushed anyway, to get the effect I want.

Well, i have problems with anti-alising or apply AA in circles, and first i will make a perfect cirle and after apply the AA. But if the circle is not perfect and i apply the AA the result...

For example this is the circle, and with AA.



I dont like very much the result, think is a little blur ¿not?


If you not need a Perfect circles, etc.. how will make a ball like this:



You will make this ball pixel at pixel ¿? and if the resolution of the ball is 100x100?

Offline Skipper

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Re: Pixel Circle

Reply #10 on: January 15, 2006, 04:23:08 pm
Helm, you're sounding a little harsh here.  He's not saying that the primative tools should be fixed, just showing others how to make a perfect circle themselves, for when it may be needed.

Offline Matriax

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Re: Pixel Circle

Reply #11 on: January 15, 2006, 05:30:13 pm
Well, sorry Helm if i say anything that not be correct, how i say my english is not very good and is possible i said anything that i not would say   :-[


Offline Helm

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Re: Pixel Circle

Reply #12 on: January 15, 2006, 06:36:09 pm
I'm sorry if I sounded harsh, it's just that I don't see what's 'tutorial-ish' about these things. Everybody is free to persue as esoteric an interest as they like.

Offline Matriax

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Re: Pixel Circle

Reply #13 on: January 15, 2006, 07:39:58 pm
In this moment i'm very confused with all...  :P

Helm, You say, not understand why I o why any pixel-artist want make perfect circles ¿?

Is correct you thinks this ¿? And if this is correct, how you make a circles? pixel-at-pixel ¿? and if you need to make a isometric circle of 200x200 with only 1 pixel and without AA, you make pixel-at-pixel?

I think first you need create a "perfect" circle or good circle and with PSP make Skew 26,656 and you have this:



And after you retouch pixel-at-pixel....

Well, I for make an isometric circle i need 2 perfect circles(if i not have a perfect circles the result will be incorrect) and i make this:

http://videotuts.webcindario.com/videotutos/videotut7/isometric_circle_paint_matriax.html

And for the tutorial of the "ball"... the tutorial is not for make a simple ball, first make a example of ball and for make this i find the problem to create perfect circles.... and after when you have a ball etc.. i explain how to texturize, etc...


And when the tutorial is finished you should know make this:




For you is possible make this is very simple(viewing you avatar i think you are a very good pixel-artist), but for me and for the people not have idea about pixel-art or are learning in this moment, i think this can help.

But if a pixel-artist how you say this.. i not continue with the tutorial.

Offline Helm

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Re: Pixel Circle

Reply #14 on: January 15, 2006, 10:27:34 pm
If I have to make a 200x200 circle, I'll use a set tool and then tweak since I'll have to manually AA such a circle extensively anyway, so why bother with it being perfect. Manual AA is never perfect anyway, and that's half the charm of it too. If you want perfect circle, perfect AA, perfect everything, you just let the computer do those steps. Really, pixel art is not industrial design where perfect is sought-after. That's a pretty ball you've got there and I'm sure there's going to be people that will like to know how to apply texture like this, so good luck with the tutorial. Just don't see the point of fussing a lot over perfect circles in paint programs.

Offline Andy Tran

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Re: Pixel Circle

Reply #15 on: January 16, 2006, 03:40:20 am
 I will have to agree with Matriax. Making perfect circles are important. Having imperfect circles just makes it look like an oval or an egg heh. I will also consider Matriax's tutorial on circles pretty essential for it. You are free to make the circle not circleish if you like Helm. It's not useful for the author only, but it can apply to other artists also. I hope you get that idea :D. Anti-aliasing is kinda hard for me sometimes btw heh.

Offline Matriax

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Re: Pixel Circle

Reply #16 on: January 16, 2006, 06:51:20 am
I think the problem is the word "Perfect"  :P

For my "perfect" is the correct circle, or the correct AA apply and the any effect looks good(and the correct apply of AA can be not perfect)

I always make anti-alias or sel-out manually!!

View this( in this video i make AA for all the letters of the vocabulary to create a font)

http://videotuts.webcindario.com/videotutos/videotut4/videotut4.html

I know the pixel-art is not perfect, but how i say previus, for my perfect is for example your avatar with good color choices, technique, etc... or any pixel-art without errors, etc...

And i only say that things i make, other people can make more better and for my this is "perfect" not perfect all are in your site, aa perfect... if the look overall you can't view any error and the pixel-art is incredible.

Another example:

This is the fighter sprite of "Alex Hanson-White "
 


If view the arms not are perfect, or any thing, but in overall the look is great!! and for my this pxel-art is perfect.

I don't know how say at other way....

Offline Drunkyduck

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Re: Pixel Circle

Reply #17 on: January 16, 2006, 10:09:31 am
How often do you use perfect circles in your art?

Offline Niss

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Re: Pixel Circle

Reply #18 on: January 16, 2006, 11:00:23 am
if I remember correctly st0ven has some tuts about primitives and aa (and a lot of other things) on his website... thought it might be of interest to those looking for ... spheres. Nice textured thing you got there but I have to agree with helm here - it is a rather esoteric topic.

Offline Mercury Rising

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Re: Pixel Circle

Reply #19 on: January 16, 2006, 02:18:06 pm
Sigh, Aol doesn’t like Matriaxs host... It only seems to like Image Shack and a few others.  I see alexs amazing KOS figure but nothing else other than AVYs and buttons.  You shouldn’t even be using the shape tool in your pixel art anyway, is it that difficult to draw a circle with the pencil tool, that you must use the circle tool?  Yet when you use the circle tool you complain about how it is not perfect.  The only tool other than pencil & eraser in GG is its checkerboard auto dither.  :)  It just helps things go faster granted if I mess up its a pain to fix but nvm, in paint I just set it to opposite colors but GG doesn't allow me to do that the right click picks up colors, so I guesse its just making GG more like paint.  Oh, sorry.  Circles where talking about circles right?
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