Does anyone know how to do cylindrical (axis-aligned) billboarding
around an arbitrary axis?
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I’m thinking of posting a special tutorial on billboarding (spherical
would you please? that would be really nice.
you have one axis, the vector from axis to eye, take a crossproduct and
you get a “right” vector (or left), and normalize them, make them all
perpendicular onto eachother, and voilà, your 3x3 matrices can get built
in case you know yet the vector math, next time just take a piece of
paper and play:D
Just read some of the post about how 2 do lasers in OpenGL in the OpenGL
section. Lots of discussion about axis aligned billboarding there.