Why doesn't my texture look crisper when I zoom it?

[MeRahulAhire]

Hi @drcmda, I'm using a 8192x4096px image as a texture on glb sphere. When I zoom the camera I don't see the details as what we excpect while normally zooming high res image. Rather, even on normal view distance the texture appear to be less crisp and slightly blurry as compared to original image. it seems like the threejs or R3F is sampling the pixel values in improper way especially at Egypt, US and other. I try adding even more high res image but it created the same result.

Here's the Demo - https://b375b1d9.experientia-in.pages.dev/nasa-black-marble
This is the actual image which I'm using as texture - https://static.experientia.in/nasaBlackMarble/2016_nasaBlackMarble_8K_bin.webp

There's nothing so special about the code, but incase you want to review it, here you go.
index.jsx

From last month, I'm trying to debug this issue, I thought maybe its OpenLayers's fault as I'm projecting map on a sphere via canvasTexture and the answer is no because I can see OpenLayers's Canvas rendering clear image but I'm not understanding what's happening when I use it over R3F.

Can you please help me with this. I tried almost everything but nothing seems to work.

[CodyJasonBennett]

I'd see #1731 and play with the texture filtering and bump the anisotropy.

[MeRahulAhire]

I'm not sure what you meant by web safe. I'm using webp inside of Canvas. I also tried useTexture with jpg, png, etc but they are giving the same effect.
Unfortunately for anistropy, that too didn't helped. Can you please bring someone / ping here whom you might know how this can be solved. Been stuck for over a week, it'll be of a great help to me.

Thanks🙏🏻

[MeRahulAhire]

@drcmda. Do you have any answer?

[MeRahulAhire]

@CodyJasonBennett do you know someone who can answer this or where I can get an answer to this problem? I tried asking mrdoob any everywhere as possible from last week but didn't got any answer.

[CodyJasonBennett]

I'd ask on https://discourse.threejs.org for more visibility, but I don't have much time to dedicate atm for non-trivial issues. If you give me enough time I can narrow it down, but the forum should be much faster and knowledgeable.

[MeRahulAhire]

Ok I've raised my concern over there. By the way this is my codeSandBox - https://codesandbox.io/s/ol-r3f-99e1gs?file=/src/nasa-black-marble/comp/earth.jsx in its bare minimum. I'll be truly glad if I can get your suggestion.