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Martin_unique
03-07-2003, 08:37 AM
Hello,
I'm trying to write a 2D app with custom visual components, etc. I'd like to be able to specify component coordinates in screen coordinate system (upper left is 0,0 and x grows towards right and y grows towards bottom). I tried to modify the modelview matrix by multiplying it by a modified identity matrix (y coord was -1 instead of 1 to inverse y coordinates) and then translating it by vector 0,480 (my screen height=480), but that didn't work too well for some reason. If anyone has tried that could you please let me know how to go about it ? Or if you have any other ideas on how to make it easier...
Thank you,

Martin

Jan
03-07-2003, 10:07 AM
Using a "2D window" is easy. You have to use the ortho view. For more information go to nehe.gamedev.net and take a loot at lesson 21 ("Lines, Antialiasing, Timing, Ortho View And Simple Sounds").

Jan.