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AllegroGL - how to getpixel32 from a Texture ?
Thomas Fjellstrom
Member #476
June 2000
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Posted on 06/03/2007 8:16 AM   View Profile
Quote:

Well if it is not enabled than alt-tabbing away and then back results in a black screen as all the textures are lost (IIRC). :)

Might you be thinking of D3D? I'm quite sure OGL specifies that textures must not be lost.

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Richard Phipps
Member #1,632
November 2001
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Posted on 06/03/2007 8:38 AM   View Profile

Thomas: It could be.. now I'm confused!

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Kitty Cat
Member #2,815
October 2002
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Posted on 06/03/2007 5:56 PM   View Profile
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If I enlarge the Texture, his alpha channel enlarges too... so if I must get a point from the BITMAP, I must do more computing (enlarged coordinates) to get the right point.
If I ROTATE the sprite, his alpha channel rotates too... same problem.

If you enlarge the texture you need to have something to rebuffer it with. I don't think you can just "enlarge a texture" while keeping its contents.. and rotate? How would you rotate a texture?

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"Do not meddle in the affairs of cats, for they are subtle and will pee on your computer." -- Bruce Graham

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