hello,
pix_zoom was developed a long time ago, and the help file says it is still experimental. I don't have any error sending 1 or 2 value. I think it should work with pix_draw, but I'm unable to make it work.
Today I can't seem to reproduce the "argument number out of range" error. But zooming does not work as you say.
I think it should be deprecated.
Can image zooming be done using shaders within the pix_* domain?
Do you want to do something specific?
I am feeding back pixes using pix_storage and want to place pix_zoom into the feedback loop.
Merci! P