How to use upscaled sprites (64x64 or bigger) in OTCv8

[excessus]

No its because of the upscaling model fucked up the coloring layer, thats the only issue im currently facing i think wafi2ux doesn't make this mistake didn't try it yet

Ive tried with waifu2x and even others upscaling tools and still same colouring issue, Ive even tried others .bmp -> .png converters and had no luck, have you manage to fix this bug?

 

[El Bringy]

Ive tried with waifu2x and even others upscaling tools and still same colouring issue, Ive even tried others .bmp -> .png converters and had no luck, have you manage to fix this bug?

maybe try upscayl i use it it provide multiple models with multiple options

 

[jeisonribas]

@Erikas Kontenis Parece que algo está errado comigo aqui. Acabei de testar e, depois de executar npm run unpack-spr ./binary/Tibia.spr ./sprites/tibia, o resultado foi uma pasta cheia de bmps vazios. Talvez haja algo a ver com a opção estendida/transparência habilitada. Você já viu isso acontecer antes? Sabe como consertar?

A mesma coisa aconteceu comigo, você conseguiu consertar?

 

[mrianura]

Ive tried with waifu2x and even others upscaling tools and still same colouring issue, Ive even tried others .bmp -> .png converters and had no luck, have you manage to fix this bug?

I had this bug, and there is no simple solution for this. What I did is to write quite complex post processing with using opencv lib

 

[El Bringy]

I had this bug, and there is no simple solution for this. What I did is to write quite complex post processing with using opencv lib

If you don't mind for sure, is it something like that?

in this example i used opencv as well to upscale and sharpen maybe just proccess I/O with CV pre multiple before processing, and postdivide alpha before output? where wafi2ux can come in the middle after splitting the img colors

img = cv2.imread('input.png', cv2.IMREAD_UNCHANGED)
b, g, r, a = cv2.split(img)

alpha = a / 255.0
b = (b * alpha).astype(np.uint8)
g = (g * alpha).astype(np.uint8)
r = (r * alpha).astype(np.uint8)

premultiplied = cv2.merge((b, g, r, a))

kernel = np.array([[0, -1, 0],
                   [-1, 5,-1],
                   [0, -1, 0]])

sharpened_rgb = cv2.filter2D(premultiplied[:, :, :3], -1, kernel)
result = cv2.merge((sharpened_rgb, a))

alpha = a.astype(np.float32) / 255.0
alpha[alpha == 0] = 1  # Prevent divide-by-zero

b = (sharpened_rgb[:, :, 0].astype(np.float32) / alpha).clip(0, 255).astype(np.uint8)
g = (sharpened_rgb[:, :, 1].astype(np.float32) / alpha).clip(0, 255).astype(np.uint8)
r = (sharpened_rgb[:, :, 2].astype(np.float32) / alpha).clip(0, 255).astype(np.uint8)

final = cv2.merge((b, g, r, a))
cv2.imwrite('output.png', final)

 

[mrianura]

Maybe I did not understand Your problem correctly- i dont have problem with edges of the outfits, but with edges on the outfit masks. so my code is completely different approach

 

[El Bringy]

Maybe I did not understand Your problem correctly- i dont have problem with edges of the outfits, but with edges on the outfit masks

thats what i've been trying to solve since april haha

 

[mrianura]

View attachment 94858 thats what i've been trying to solve since april haha

ok, but how "raw sprites" looks like ? .png files I mean - is the problem in the masks or the base outfit, I believe masks only

 

[El Bringy]

ok, but how "raw sprites" looks like ? .png files I mean - is the problem in the masks or the base outfit, I believe masks only

true it is only the masks of coloring the outfit it seems slightly smaller for some reason

 

[excessus]

true it is only the masks of coloring the outfit it seems slightly smaller for some reason

Ive actually managed to make it better by generating to png32 and then upscaling both base outfits and masks with waifu2x, its not perfect but I guess I can fix the details manually on paint:

 

[mrianura]

You can even design directly to 64x64, and skip waifu

 

[samco]

@Erikas Kontenis something seems to be going wrong for me here. I just tried it, and after running npm run unpack-spr ./binary/Tibia.spr ./sprites/tibia, the result was a folder full of empty bmps. Maybe there's something to do with extended/transparency being enabled. Have you seen this happen before/do you know how to fix?

Same thing happening here. Using 10.98 Spr

 

[Erikas Kontenis]

Same thing happening here. Using 10.98 Spr

I updated the tutorial to use other tools that can do sprite exporting.