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Bitmap problem

Started by January 20, 2002 12:44 PM
1 comment, last by Cheez 23 years, 1 month ago
I was toying around with the snowstorm program from chap15 of the glbook. I tried to change the snowflake texture to load some other bitmap, but it just ends up looking like garble. I''m using Adobe Photoshop to edit the bitmap, and I made sure to save is as 24-bit, but I can''t get it to load correctly. I have some other particle-type bitmaps around from other programs, so I tried those too. Some of them load fine, some of them load as garble. I can''t figure out what''s wrong with these bitmaps and how to make one that I can use with the bitmap.h file there. Thanks, Cheez
Cheez------------------------------If you were supposed to understand it, we wouldn''t call it code
Are you talking about a windows *.bmp file? Or just a ''bitmap'' file (lol)?

It sounds like the problem could be due to the lack of an alpha channel (32 bit texture). Depends on exactly what you''re trying to load.
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I love this problem. The example in the book specifically uses Windows BMP files. In order to get a better understanding of just what''s going on, check out the NeHe tutorial on blending (7, 8, or 9?).

{NOTE: For people who say, "Bah, you''re telling him to look for it on his own because you don''t know!", I''m not. I hold self-education in high esteem, and if he has any more problems, he''s free to ask more specific questions. Just a disclaimer, because I have been flamed for that.}

Later,
ZE.

//email me.//zealouselixir software.//msdn.//n00biez.//
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