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Old 10-09-2005, 04:22 AM   #1
danotronXX
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i want to place the picture of bart simpson on to this car but i dont want to have all the borders showing. do you guys know how to import like htat? cause ive been importing only square-based pictures and i dont know y it has been so hard for me to just import a picture without the background showing.
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Old 10-09-2005, 04:44 AM   #2
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You might want to look into transparency maps via the alpha channel. All textures are brought in square, the image alpha channel transparency basically allows the render to "ignore" section of the texture.
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Old 10-09-2005, 05:34 PM   #3
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so first i created a nurbs plane to put the texture on. then i wanted to add the material that would allow transparency maps but i wasnt sure which to choose. could u let me know where to go from there. tks
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Old 10-09-2005, 06:18 PM   #4
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Itss quite hard unless you're a good photoshopper.

In photoshop(/gimp):
Basically you need to take your Bart Simpson head and create an invisible layer over the head. From there you have two methods:

1) paint over whatever you want visible black, then place it over a clear-white layer and save the resulting greyscale image as barthead_alpha.jpg or something... name doesn't matter so long as you know its an alphachannel.

2) paint over whatever you want invisible white, then place it over a clear-black layer and save the resulting greyscale image as barthead_alpha.jpg or something... name doesn't matter so long as you know its an alphachannel.

Then apply that texture to your alpha of your NURBS material If done correctly (hoping you don't have any matte lines, and that I didn't get black and white reversed (which is an easy fix)) you'll have bart's head on a nurbs surface with everything outside his clear.
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Old 11-09-2005, 04:51 PM   #5
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awsome, i finally got it. u have no idea how long ive been stuck on this problem. great tks
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