CGTalk - U-value of birthposition of a surface-emitted particle

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borisb2

11-02-2005, 08:30 AM

HI all,

is it possible to query the birthposition in U- (or V-) value of a surface-emitted particle?

Let´s say I have a plane emitting particles and want to get the birthposition or U-position of each particle where it was emitted on the plane.. is there any variable ?

That would greatly help me with my actual job: to integrate selfshadowing on the sprites emitted by a (diagonal) falling rock (particles with a high U-value could then get brighter than the lower ones)

Thanks for any ideas,
Boris

westiemad

11-02-2005, 09:00 AM

think its called parentU and parentV, so you'll have to turn on the need parent UV check box too :)

AnDy

borisb2

11-02-2005, 09:27 AM

damned! .. that was an easy one .. thought parentU/V are just important for working with goals ..

Thanks! :)
Boris

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