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View Full Version : Stuck on mipmapping!



Oliver LS
03-01-2002, 05:14 AM
I know this is not exactly an advanced problem, but I'm hoping to have a greater pool of experience here because nobody on the beginner board had encountered this before..

Does anybody have any source examples of mipmapping with this glpng lib?
[http://www.wyatt100.freeserve.co.uk/download.htm]

I have searched extensively and have not found a single thing (and the documentation is pretty much not there!)

I am honestly not even sure if it's correctly supported, so if nobody has had any experience with this I would appreciate any information about another lib supporting PNGS w/examples on mipmapping; or even the same thing supporting TGA's.

Thanks in advance, I've been stumped on this for a while :-/

zeckensack
03-01-2002, 05:25 AM
According to here (http://www.wotsit.org/filezdir/png.zip) , png doesn't support mipmaps. You have to build mipmaps on your own at load time.

richardve
03-01-2002, 05:28 AM
Why do you need examples?

There are only 10 functions?

This library is one of the easiest?

And btw, GLpng uses LibPNG (http://www.libpng.org/pub/png/libpng.html) , which is _the_ library to read Portable Network Graphics.
But if you need examples for GLpng I wouldn't recommend using LibPNG itself.. (no offense)

btw. Try this (http://home.clara.net/paulyg/download/tgaload.zip) for loading TGA's

btw2. zeckensack, he's talking about GLpng, not LibPNG.

Oliver LS
03-01-2002, 05:41 AM
I think maybe I was a little vague, I don't need helps because of the library itself perhaps, but I do because I have never done anything with mipmapping before. While I'm pretty new to GL, I'm very familiar with programming in general; that is why I am just trying to look for an example with source/images of someone doing mipmapping.

All the tutorials/etc I've found on the web are awful^10, and while the documented help for that TGA and the PNG libs were useful, they both only talk about using no mipmaps.

Sorry for the n00b question, but like I said nobody on beginner seemed to be able to give me a reply =X

Oliver LS
03-01-2002, 06:24 AM
Nevermind I'm sorry for clogging up your forums guys, it was just a problem that I didn't know to use GL_LINEAR_MIPMAP_LINEAR.

we all start somewhere http://www.opengl.org/discussion_boards/ubb/smile.gif