Derek Holzer wrote:
Hi IOhannes,
IOhannes m zmoelnig wrote:
the problem is, that some pix-sources (platform dependent!) supply the images with (0/0) in the upper-left corner, whereas others (0/0) is the lower-left corner (like openGL expects it).
Would be good to know which platforms do it right, and which ones wrong.
it's not a matter of "right" and "wrong".
mathematicians tend to put the origin in the lower-left corner (like a coordinate system) computer-graphics prefer the upper-left corner (back in the old days, the cursor would appear in the 1st line on the screen)
openGL has been designed by mathematicians. tcl/tk comes from the computer geeks...
btw, this fuzz is the reason why the tables in Pd are never oriented the right way...
mgfa.dr IOhannes