View Full Version : Particle-System Tutorials
02-17-2005, 02:43 AM
does anybody know a good tutorial in particel-systems? i have some tutorials but i don't understand why i have to use billboarding to turn the particels to the camera - should a glLoadIdentity() call do the same?
thank you h.stony
02-17-2005, 03:09 AM
you could search for particle-system documentations
on nehe.gamedev.net or gamedev.net or here:
There are also some pictures to describe the problem.
The only way to avoid billboarding on the cpu is
to use point sprites (where supported) or doing
the billboarding in a vertex shader.
02-17-2005, 03:31 AM
glLoadIdentity() discards every transformation. You generally don't want that, because you may want to transform the whole particle system, for example when moving the camera around.
02-17-2005, 04:04 AM
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