Using Particles with Depth

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Old 04 April 2004   #1
Using Particles with Depth

Hello, I rendered my logo with a depth buffer and now i want to spin some particles arond the logo so they disappear as they go behind it. any hints?
 
Old 04 April 2004   #2
Yeah, this should be relatively simple.

Set up your particle system (in DF I assume) and be sure to check the "generate z buffer" in the prender node. (you may also need to check the "depth merge particles" )

Then merge it with your logo, and be sure to check the channels tab and set the "perform depth merge"

Now if all goes well, it should work. But that rarely happens. Depending on where in Z space your logo sits, and where in Z your particles sit, they may not mesh right.

What you can do, is add a custom tool to one of your layers, and enter an expression in the Z channel.

Something like z1*n1. Then in the controls tab, slide the n1 slider untill they mesh correctly.
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Jason Kolodziejczak
Digital Fusion Consultant
Toronto, Canada
 
Old 04 April 2004   #3
That worked perfectly, Thanks alot!
 
Old 01 January 2006   #4
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