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Spiner
11-15-2005, 11:33 PM
I wan't to create a diffusion effect with rain passing through a headlight beam. Whats the best way to acomplish this?

anthonymcgrath
11-16-2005, 12:28 PM
how'd you mean - like volume shadow effects off raindrops that pass in front of the headlight?

Spiner
11-16-2005, 05:26 PM
Think car headlight and rain. Basically I wan't the light broken up by the rain particles.

anthonymcgrath
11-16-2005, 05:31 PM
well if your doing a camera move too I'd render off your headlight, then I'd render off a sep pass of the rain and add some volume shadow effects using a compositing tool. I wouldnt' try and do it in the render it'll end in tears, you'll have nothing like the control you want and will take ages to render!

Spiner
11-17-2005, 08:47 PM
Yeah, I figured it was a post effect. I guess I'll render the rain particles seperatly then have the camera follow the car to create the 3d effect.

anthonymcgrath
11-18-2005, 08:41 AM
now yer talking - comping is great fun too!!

heres my car anim wip - this is currently four layers, beauty, rainpass (basically bw image mapped with animated rain texture travelling along surface of car), diffusion/ao pass and particlemist. reflection will be separate and there'll be glow fx on the headlight soon too.

http://img.photobucket.com/albums/v90/anthonymcgrath/frm260_composite.jpg

http://img.photobucket.com/albums/v90/anthonymcgrath/frm260_water.jpg

http://img.photobucket.com/albums/v90/anthonymcgrath/frm260_colour.jpg

http://img.photobucket.com/albums/v90/anthonymcgrath/frm260_dirtmap.jpg

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