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Screen Facing Quads

Started by August 14, 2000 01:39 PM
-1 comments, last by a2k 24 years, 6 months ago
i''m still having problems rotating my quads to always face the viewer. (billboarding). lemme get some things straight. you only need to rotate on 2 of the 3 axes to get it oriented properly, right? well, this is what i was doing: -get view vector -use view vector coords to find x-axis angle and y-axis angle -rotate quads with these euler angles, around appropriate axis. is this right? is it the math i''m getting screwed up on? i''m using arctangent, and i''m also checking for 0 denominators and setting it appropriately. the range for tangent seems to be only 90 degrees in both directions, so if it goes beyond that on one axis, i subtract 90 to get the new angle. is this right? i''m not sure if i''m doing the trig right. help! if you need more info, i can draw up my ideas and post em. a2k
------------------General Equation, this is Private Function reporting for duty, sir!a2k

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