I downloaded a texture pack and I noticed that some textures gives off a glittering effect. I heard somewhere that it has to do with the mipmaps or something like that. Does somebody know how can I eliminate that effect in PhotoShop? Thanks.

Ive noticed that very high resolution textures on certain models can make that happen.

a solution is to resave the texture and generate a new mipmap while doing so
that worked for me

Is there any way to automate the regeneration of mipmaps from the command-line?
I have NVidia Texture Tools but not Photoshop.

Just using "nvcompress" seems to work but it wipes out the alpha channel and possibly certain DDS flags.

You could install the Microsoft DirectX SDK.

If so you will as well get a shell shortcut command (RMB=>Convert to File Format...).
Using this you can redo multiple/selected textures at once and generate all miplevels.

That did the trick but I noticed that the texture now looks a bit washed out or blurry. The sharpness is gone.


UPDATE: I figured how to make the texture more sharp/crisp without the glitter. In the Nvidia dds Format(v8.23) in PhotoShop you click the "sharpening..." button and choose the setting you want.

>The sharpness is gone.

Isn't that a good thing, really? It's mathematically correct, plus it will help fight aliasing.

Well, I don't know the technicality of these things but the texture did look a bit washed out, kind of blurry. But now, with the fix I mentioned, the texture looks crisp without any glitter. I will explore more this Nvidia dds Format thingy too see what other kinds of results I can get.


NOTE: I wonder what's the advantage if any when a texture is sharpen via the Nvidia DDS Format settings or just sharpening the texture manually with Photoshop? I must say that via Nvidia DDS Format the sharpening results looks beautiful and natural without any pixel artifacts and whatnot.