Extreme high resolution textures

[Art48]

Hey guys!

I'm currently looking to get a very high resolution, tilable concrete texture map for use in a concrete floor shader. The thing is we mainly produce pretty large images (10k) for use in print and most textures you can buy online, even if 6k, don't hold up very well when you get closer and use it for a product shot.

Now I am looking to get a minimum 10k, better even larger, concrete texture. I found this one (see attached link) so far and that is the structure I am looking for. What stops me from buying it tho is that it is "only" 7k on a real surface area of 5 meters. It is the best one I found so far. Do you guys have any good websites or other resources for that kind of stuff?
Alternatively I will shoot them myself, but I'll have to find a suitable location first.

[Art48]

On another note: I mean I got a texture I really love and it's 6k but that is just not enough. Do you think there's a way to use neural networks to increase texture resolution? The base is pretty decent - any websites or git-repos I could use? I'm no programmer tho, but I may manage :P

[Syclone1]

You could try the technique near the bottom of the thread I started on a similar subject of high rez seamless maps, I still haven't had time to try it but looks like it could work.
https://forums.chaosgroup.com/forum/...s-ground-exist

[Art48]

Hi, thanks for your reply.

I use this technique frequently and that is good for reducing tiling artifacts (but also prone to error if you have a delicate normal/bumpmap. if you mirror or rotate your image in some parts reflections are rendered visually wrong (technically correct tho).
However this does not get rid of the fact that I have to scale the texture up too much (read: reduce tiling to 0.05 for example) to get the desired feature size for which the resolution of the texture is not enough.

[Syclone1]

Yea that's what I was afraid of as kind of like you I need detailed maps that I can use for displacement, bump, diffuse...

[Art48]

Right now I give the following a try: https://github.com/alexjc/neural-doodle

This has a texture synthesis function. I'm downloading/installing it right now and I hope my 64 GB of RAM are sufficient to synthesize a 15k image from a 6k one. If it works at all. I'll report back.

[Syclone1]

Cool, looking forward to hearing your results.

[flino2004]

There some plug-ins for Photoshop to increase resolution without losing much detail... I just use Alienskin products I think is Blowup.
In my opinion, 10k for 4mx4m is a lot for that concrete....it has a lot of imperfections, splotches, and different grays so 6k with lower blur may work just fine.

[Art48]

Trust me - I need the resolution I am looking for. I already used BlowUp to upscale from 6 to 15k and while this may work for an overall impression of the texture it definitely doesn't hold up at closer ranges.

[Art48]

I need to find some solution which doesn't involve setting up a VM with boot2docker image and doing commandline stuff there, my linux-speek is just too weak... if anyone has a resource easier than commandline linux to use neural networks iI'd appreciate to hear it!

[ior=0]

I'd be interested to know what and how you are printing that makes a 10k texture fail?
As i understand it printing A3 at 300dpi (which is a pretty large high quality coffee-top type book) would only need a 3508x4961 pixel image space, so even assuming your concrete floor covers 100% of the image space that is still a 2:1 pixel ratio (your print will be trying represent 2 pixels of your texture map in 1 pixel of print resolution).
Printing anything bigger you probably don't need the same dpi, doing close-ups you don't need the total coverage.

But I could be wrong, hence asking the question.

[Art48]

It's an issue of being upclose for a product shot on a concrete floor while at the same time seeing distant and not having too obvious repeating patterns while at the same time having many features.

Edit: 2:1 pixel ratio is the optimum for a texture and the current textures we use don't cut that mainly because of feature size as mentioned above.

[flino2004]

Substance designer... you could get several 8k textures to put them together

[Art48]

Substance designer... you could get several 8k textures to put them together

Have you used substance designer in production? I always see it coming up and thinking of getting it. And how would I go about what you mentioned? I'd extract all the textures out of my regular bitmap and then basically copy pase it 4 times in a square to get a huge texture? That's not what I want. I want to have the same features in the same playces but with higher resolution :P

[joconnell]

Would it be worth looking at grant warwicks materials course? There's a good concrete floor in one of the lessons based around bercon maps!