Object is not an image when Crop command
jmyepes at mac.com
Tue May 11 16:10:50 EDT 2010
<You can modify pixels of an image, but maybe it would be less complicated
<overlay a colored overlay object where you want it and create a new
<to apply as the backgroundPattern.
This is what I doing but I can't erase the background or overlay with the
The objective is to change the wall color with the shadows and some of the
Imagine a red wall, I create a poly with the shape of the wall, then I
create a snapshot and put it as backgroundpattern into the poly. Then I can
change the color of it to white but I loss the major of the shadows and
details, only I can play with the blendlevel to show of the detail but this
Any idea how to deal with this?
Also I read the article of Kevin about the imagedata, maskdata and
alphachanel. I don't know if is posible extract some chanel to use as
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