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daemon346
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Quote daemon346 Replybullet Topic: PIXEL ART REQUIRES REVISION
    Posted: 01 December 2018 at 5:18am
Hey there!
Found that one of my pixel arts needs revision, but not really sure what trtiggered the problem. No transparent colors there, every pixel was drawn by hand.

http://pixeljoint.com/pixelart/124178.htm
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eishiya
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Quote eishiya Replybullet Posted: 01 December 2018 at 5:24am
Pre-zooming your work is against the rules, since PJ has its own zoom feature, and pre-zooming limits people's options in viewing the image.

In addition, the colour-changing parts look noisy, and some of the oversized "pixels' have lost their proper colour because of the automatic colour reduction (due to the fading effect, the gif has a lot of colours, and your gif apparently has a global palette, which means the entire gif is limited to 256 colours, and your fading requires more colours than that). For example, check out the eye here:

Avoiding pre-zooming would help. Setting a per-frame palette in your gif should help avoid the awkward recolouring, since the per-frame colour count is lower than 256. However, your per-frame colour counts are still rather high, and you may want to clean up the colour fading frames anyway.
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daemon346
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Quote daemon346 Replybullet Posted: 01 December 2018 at 6:46am
Updated image without pre-zooming, how do I re-submit it?
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eishiya
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Quote eishiya Replybullet Posted: 01 December 2018 at 6:57am
PJ is a bit weird with file names, and doesn't realise when a file has been changed if it has the same name. If your edit doesn't send your work back on the queue, try updating the file with a different filename.

However, although you fixed the size problem, you haven't addressed the other issues, most notably the noise. On top of the noisiness while transforming, the blue slime seems to have a lot of slightly-off colours in it. The blue sprite has 30+ colours per frame when it should have about 10, because there's a bunch of very similar colours in there. It shouldn't be hard to clean up.
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Quote snv Replybullet Posted: 01 December 2018 at 11:47am
The local definition of pixelart implies using limited palette (like no more than 16 colors). Usually such palettes are very sophisticated, especially in terms of transition colors, people actually use math to design their palettes. If you use all 256 colors, but still manually retouch important parts on pixel level, it is called index painting, which is nice for games (for example, Doom sprites and textures are index painted), but is frowned upon by local PJ community purists. They believe, that limited palette will make you think careful about color choices, improving the art quality in general. They also believe, that you must be precise with placing your pixels, therefore use 1 pixel sized brush (or a special pixelart brush, that makes ideal lines).

So, yeah, it was surely reject because of indiscreet palette and using large brushes (bigger than pixel size).

The easiest way to make your artwork approved here is by converting it to say 16 colors and refining the pixels. In Gimp it is done by picking Image->mode->indexed. But such automatic conversion can produce a lot of out of place pixels, so make sure to fix them. Colors->posterize can also be used to reduce the number of colors.
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eishiya
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Quote eishiya Replybullet Posted: 01 December 2018 at 12:08pm
snv's right that PJ has more of a "purist" approach to pixel art. However, they're mistaken in their assessment that this implies using small palettes. As long as the colours are used well, it doesn't matter how many there are. Smaller palettes are usually encouraged on the forum because the number of *distinct* colours in rejected submissions is usually low. PJers don't make such comments about e.g. Cyangmou's submissions, which have effective use of large palettes.

PJ routinely accepts pieces that have a very high total colour count due to colour-changing effects like in this piece, so I doubt that was much of a factor in its rejection. The pre-zooming was the most likely reason, and was possibly the sole reason, with some additional "no" votes due to the noisiness in some frames.
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snv
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Quote snv Replybullet Posted: 01 December 2018 at 6:57pm
Originally posted by eishiya

PJers don't make such comments about e.g. Cyangmou's submissions, which have effective use of large palettes.

Actually, Cyangmou uses rather small palettes, compared to index painted art. For example, one of Cyangmou's top notch artworks is a set of monsters
https://cyangmou.itch.io/rpg-monster

Most have like 6 shades for body color, while darker shades are reused for several colors. It is not the number of colors, but the way how he picks and uses them.
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