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OpenGL used for bitmap loading?

Started by MARS_999 Jul 30, 2001 at 12:36 PM 3 replies 450+ views

Original Post

Jul 30, 2001 at 12:36 PM

Ok, I am using OpenGL to try and load a bitmap file for a screen background into a win32 window. I will not be running in fullscreen mode either. Is their a function that will just load up the bitmap file? If not could someone please help out with a code example of how to display a bitmap. Now when I have this bitmap displayed can I still use win32 gpx calls like lineto moveto? Or does OpenGL have functions that are like those in win32 to draw simple lines and rectangles? Thanks Please forgive me! =)

Julio

Jul 30, 2001 at 12:42 PM

well, you''ll have to either write your own loader, use a library like the auxilary library which is in gluax.lib, or steal someone else''s code.

Never underestimante the power of stupid people in large groups.

MARS_999

Jul 30, 2001 at 12:47 PM

Thanks!

Please forgive me! =)

merlin9x9

Jul 30, 2001 at 1:21 PM

You might consider using DevIL (formerly known as OpenIL). Not only will it load many image formats, but it also has functions for creating OpenGL textures from those images with a single function.

If you do end up using something like DevIL, I highly recommend using a format other than Windows Bitmap. If the images need no alpha channel, use high-quality JPEG, otherwise use Targa.

MARS_999

Jul 30, 2001 at 11:17 PM

Thanks for the info merlin!

Please forgive me! =)

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