DrawImage and transparency
Blitz3D Forums/Blitz3D Beginners Area/DrawImage and transparency
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| Hi all, I am trying to display with transparency a TGA image that has R,G,B and alpha channel. The Blitz manual says that DrawBlock paints without taking into account transparency or MaskImage but that Drawimage does take them into account. I am using the latter but all image gets displayed regardless of the information present in the transparency channel. I dont have problems texturing the image on a 3D surface. In that case transparency is fine. But, what I need is 2D painting with transparency. My code: ----------------------- Graphics 1280,1024,32,1 im=LoadImage("temp.tga") While not keyhit(1) DrawImage im,0,0 Wend ----------------------- Thanks for your help |
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| You'll have to write your own alpha/transparency function or use you can use this one: http://www.blitzbasic.com/codearcs/codearcs.php?code=27 Hope it helps. |
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| Yeah, blitz will only mask pixels. As cermit says, you'll have to do it manually |
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| Understood. Thanks very much. I'll work on the drawalphaimage code... Jreyes |
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