Help ! particle image emitter and WPP

Hi,

I attempt to emit particles via pImageEmitter and place thess particles in 3d space with a given WPPass.
I supposed I have to use a PCustom node to place my particle properly but I can't figure how to use it ...
I plug my WPP image in the Image1 input of the pImageEmitter. When I type "px1" instead of "px" in the PositionX parameter ( in the particle tab), the result in just 0.0.

the WPP is good since i can use it to displace a grid nicely. but now I need to make it with particles.

Thanks for your help.


Vincent

PS : I use fusion 7.5

my WPP is an independent image. When I plug it to the pImageEmitter and use "r" as PositionX value in the pCustom it works ... How can I use the seoncdary input of the PCustom ?

all the custom tools (custom tool, pCustom and Custom Vertex) share the same commands you can use

you can find an overview in the tool referenece manual http://documents.blackmagicdesign.com/F ... -10-17.pdf

for you specific case you would use:

Code: Select all

getr1b(x,y)

which would get the Red channel of input 1

already tried.
no success.

i tried a channel boolean solution, putting my wppass with the rgbpass and plug the whole thing to the pImageEmiter. But there is no displacement of the particles.

Don't know what to think ...

found this old example, maybe it will help you

thanks

I put an eye on it asap.