I tested with Photoshop, resized image to 100px - and pixelated effect gone. Image displayed ok with

I tested with Photoshop, resized image to 100px - and pixelated effect gone.
Image displayed ok with default "0" flag. So it was just an issue with image loading.
For the average user this is out of logic, we're expecting bigger images will look better.

Aqua•1/8/23, 12:47 AM

you often have mixed results scaling down large images.
if you use linear interpolation with mipmapping though it can look pretty damn good

Aqua•1/8/23, 12:47 AM

but if you're using point interpolation with no mipmaps then it's gonna look pretty garbage

flykeOP•1/8/23, 12:49 AM

What type of "interpolation" should I choose for 2d textures? Image editors have multiple options, never thought they are important.

Fflyke I tested with Photoshop, resized image to 100px - and pixelated effect gone. Ima...

TechPizza•1/8/23, 12:50 AM

gpus are not good at filtering

TechPizza•1/8/23, 12:50 AM

that's why mipmaps exist

Aqua•1/8/23, 12:50 AM

bilinear is normally decent enough.
if you're using a image editor then cubic interpolation is the one I'd suggest

TechPizza•1/8/23, 12:50 AM

most image editors just have a "best quality" option

Aqua•1/8/23, 12:51 AM

really? both the ones I use allow you to specify the exact interpolation type to use

TechPizza•1/8/23, 12:53 AM

by "just" i didn't mean only one :)

Aqua•1/8/23, 12:54 AM

TechPizza•1/8/23, 12:54 AM

paint.net is pretty good

Aqua•1/8/23, 12:55 AM

the heck is fant lmao

TechPizza•1/8/23, 12:55 AM

some cursed box filter apparently

TechPizza•1/8/23, 12:56 AM

used by windows imaging component and WPF. it's pretty bad compared to most methods

Aqua•1/8/23, 12:58 AM

fant more like pants
~~please tell me pants is not another thing only us brits use~~

TechPizza•1/8/23, 1:02 AM

~~i don't think brits are the only ones that wear pants~~

Aqua•1/8/23, 1:04 AM

clearly this term has not escaped the land of the rain

TTechPizza paint.net is pretty good

flykeOP•1/8/23, 2:14 AM

Yes, I often use it, because it is light and fast, especially on laptop.

Hanprogramer•1/8/23, 11:07 AM

question about textures, should i store it as bytes only in the finished builds for my game(s)? or store it as the original format?

Aqua•1/8/23, 11:11 AM

depends what you want. storing it as bytes only will decrease the loading times but will largely increase the overall size.
it's part of the reason a lot of games use DDS - decently small size, but doesn't take much to process since a lot of the decompression happens on the GPU.

personally if it's a small game I'd just recommend leaving it in the original format, unless all your textures are uncompressed anyway at which point yeah you might as well just store them as raw bytes

Kai•1/8/23, 11:15 AM

What does raw bytes mean? Straight RGBA8? Depending on the tech you're using I'd convert to some semi-compressed format that 90%+ of your target devices can load to GPU directly, with a software fallback ofc.

AAqua depends what you want. storing it as bytes only will decrease the loading times ...

Redhacker2•1/8/23, 11:45 AM

I would move to something like QOI with zstd compression.

Redhacker2•1/8/23, 11:46 AM

Fast decompression times, speed of parsing, and fast asset loading, and low storage size being a huge deal for those folks still with an HDD, and will make fetching off the disk significantly faster

Redhacker2•1/8/23, 11:47 AM

Which would actually decrease loading times for those with slow disks

Redhacker2•1/8/23, 11:51 AM

You could go full for lack of a more professional term "balls to the walls" and create a glorified zip package, or virtual filesystem to minimize wasted space and ensure the maximum possible contiguous data storage. Leading to potentially a slightly smaller game and potentially being faster to load at the cost of not being as easy to edit and modify and being hidden away from users

Kai•1/8/23, 12:01 PM

Khronos has standards for this

Kai•1/8/23, 12:01 PM

They are great

Kai•1/8/23, 12:01 PM

I keep forgetting what it's called

Kai•1/8/23, 12:01 PM

But is great

KKai I keep forgetting what it's called

Aqua•1/8/23, 12:26 PM

ktx?

RRedhacker2 I would move to something like QOI with zstd compression.

Aqua•1/8/23, 12:29 PM

is it decompressable on the gpu though? that's the real advantage of DDS and KTX. because they are stored compressed in vram you can fit a lot more textures in gpu memory, with the only caveat being that you get a bit of a reduction in image quality if you view the textures up close.
can't say for 2D games, but for 3D games DDS or KTX with ST3-ST5 (idk what KTX uses, i think some khronos format) compressed textures is absolutely the format I would recommend any game ships with.

Aqua•1/8/23, 12:30 PM

and basically every modern GPU on the planet can decompress that in hardware

Aqua•1/8/23, 12:30 PM

so compatibility shouldn't be much of an issue unless you're targetting a voodoo3 or something

Aqua•1/8/23, 12:33 PM

QOI looks like a neat image format but probably not one I would recommend for games, unless you don't plan to use GPU compressed textures at which point it seems like its a decent option

AAqua is it decompressable on the gpu though? that's the *real* advantage of DDS and K...

Redhacker2•1/8/23, 12:44 PM

Really it depends on what you're going for. GPU compression isn't always the best option

Aqua•1/8/23, 12:44 PM

certainly not for 2D games, no.
but for 3D games it's pretty much a no-brainer, unless you're going to be staring at the textures extremely close up

Redhacker2•1/8/23, 12:45 PM

Take UI elements or pre-baked font atlases/texture atlases

AAqua certainly not for 2D games, no. but for 3D games it's pretty much a no-brainer, ...

Redhacker2•1/8/23, 12:45 PM

That's not all that uncommon in 3D games

Kai•1/8/23, 12:46 PM

KTX2 is what I ment

Redhacker2•1/8/23, 12:46 PM

But typically the quality even so is good enough to be worth doing

Kai•1/8/23, 12:47 PM

KTX2 is like a container format. Various other things can be inside. Most are also part of vulkan, and are likely supported on the GPU natively

KKai KTX2 is like a container format. Various other things can be inside. Most are al...

Redhacker2•1/8/23, 12:47 PM

I was just referring to a standard .pak or .vpk file

Redhacker2•1/8/23, 12:47 PM

That could just store arbitrary data

AAqua QOI looks like a neat image format but probably not one I would recommend for ga...

Redhacker2•1/8/23, 12:50 PM

And really most people don't need GPU compressed textures, I don't even know of a good way to write them to disk from standard image formats (and I prefer being able to parse the texture data on the CPU side first anyway, so it does not really give me much to have GPU compressed textures I would then decompress lol)

RRedhacker2 That's not all that uncommon in 3D games

Aqua•1/8/23, 12:50 PM

yes, you do have to make some tradeoffs though
if you want the most realistic looking game in the world then you'll probably have to use uncompressed textures, and then use sparse texturing on top of that if you want to load them all at once
but for most usecases a bit of quality loss is fine

Redhacker2•1/8/23, 12:50 PM

It also wouldn't surprise me if the GPU already compresses the texture data into a native format transparently

Aqua•1/8/23, 12:51 PM

far as i know gpus use whatever it is you give them
it's the reason why you tell it the texture format

Aqua•1/8/23, 12:51 PM

GPU compressed textures have a load of uses

AAqua far as i know gpus use whatever it is you give them it's the reason why you tell...

Redhacker2•1/8/23, 12:51 PM

That doesn't mean they Don't transform it into their own internal representation

Redhacker2•1/8/23, 12:52 PM

Trying to reduce space utilized transparently

I tested with Photoshop, resized image to 100px - and pixelated effect gone. Image displayed ok with

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