alpha with images?
Blitz3D Forums/Blitz3D Programming/alpha with images?
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| hello, haven't touched blitz3d for a while, but am making a simple note reading app with it. It is very slow to actually draw the notes on the cleflines with ovals and lines as I figured out, so I thought I'd make some images and paste them over. However, no alpha channels! I hope I am omitting something very easy, like a flag in loading or something? I need the notes to allow the lines to show through from underneath.. I thought that just loading a bmp with alpha information should be fine, but its not working. Any info on this? thanks! aristides. |
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| sorry to bother all, just found about maskimage. it appears my black wasnt exactly black.. however, the question still stands, is there a way to have transparency according to an alpha mask? for example, when mask is gray, the image is semi-transparent, etc. thanks. |
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| You can't have that in images i'm afraid. You'll need to use a sprite system. Try nSprite? |
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| thank you. I was expecting this to be standard, frankly. |
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| It is standard, in 3D. 2D commands do not have any alpha as they are DirectDraw that does not use 3d hardware acceleration -> no alpha, realtime rotation and realtime scale You can use Draw3D for example or a different 3D basing solution for alpha or you can do it pixel wise which will not allow many alphaed images |
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