How to load and bind a texture larger than GL_MAX_TEXTURE_SIZE for sampling,when I bind a texture larger than GL_MAX_TEXTURE_SIZE,an invalid texture dimmension error occured,but I think it's possible because photoshop can handle this image,any advice?
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use texture larger than GL_MAX_TEXTURE_SIZE
Photoshop and GIMP work with huge images by loading them as a number of smaller tiles; something configurable but on the order of 256px² each.
Yep, and i think they are as well limited to memory sizes, like 4GB or so, which would be an RGB image of around 30.000/30.000. Also, users of GIMP or PS accept long waiting times for operations to execute. Like, hours ? ? The latest graphics cards are actually better than that (32k textures), but be prepared to stand by for loading times.
Anyway, the answer is no, for texture lookups, one cannot use textures larger then max texture size.
Is this about large terrain, or rather image processing ?
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