Does anyone know how to do cylindrical (axis-aligned) billboarding around an arbitrary axis?
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Cylindrical Billboarding
Started by andrewvtran, Feb 23 2003 02:02 AM
4 replies to this topic
#2
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DevMaster Staff
Posted 23 February 2003 - 08:50 AM
I'm thinking of posting a special tutorial on billboarding (spherical and cylindrical).
#3
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Senior Member
Posted 23 February 2003 - 04:28 PM
would you please? that would be really nice.
:yes:
:yes:
Imagine.
#4
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Senior Member
Posted 23 February 2003 - 07:27 PM
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 up..
in case you know yet the vector math, next time just take a piece of paper and play:D
in case you know yet the vector math, next time just take a piece of paper and play:D
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#5
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New Member
Posted 24 February 2003 - 12:31 AM
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.
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