Le 11/04/2011 20:04, Matteo Sisti Sette a écrit :
Hi,

I'm finding some difficulty in doing in GEM operations that I thought would be 
trivial, and I think I must be missing something.

For example, i'd like to do the same kind of operations you can do with 
pix_difference, pix_add and pix_multiply but use a single color as the right 
operand, as if it was an image of the same size as the left operand with all 
pixels of the same color.

The only way I can think of, is to use pix_set as the right-operand pix, to use 
pix_info to retrieve the size of the left image and to repeat the color the 
needed number of times. Or to use pix_resize to resize the pix_set pix to the 
size of the other image.

Is there a simpler and more elegant way?
use shaders...

c


thanks
m.

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