ParticleAge Opacity Shadows

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Old 12 December 2008   #1
ParticleAge Opacity Shadows

Not sure if my original message went through or not. If it shows up, I'm sorry for double posting. If not, then here's my quandary.

I was going through "Deconstructing the Elements Vol 2" and came across a bit of a problem. I am doing the Oil Fire animation in Chapter 4 (with a bot of custom personalization of course). I wanted to have some nice Raytraced shadows cast on the ground. I've got a Particle Age Map controlling the opacity to make the smoke fade out before they die. The problem is that the shadows only pick up 0% on the Particle Age. It doesn't go through the whole age. Has anyone else had this problem and found a work around for it. Here's what I eventually did but I was hoping there was a simpler solution. I mapped the particle system to Black and White and rendered from the light's position over a white background, thus making an animated map to put into the lights projection slot. Does this sound like what others would have done or is there another way. Here's a sample of how it turned out.
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File Type: jpg OilFire.jpg (74.9 KB, 23 views)
 
Old 12 December 2008   #2
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