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Making windy grass?
I’ve got a project coming up where I have to animate some composite scenes, as if the camera is panning slightly. That’s pretty straightforward, however one of the background photos has a grass field that’s clearly getting blown by wind, and I think it would look pretty obvious that it’s just a static photo if I didn’t try and ripple the grass somehow. Just wondering if you guys had any ideas for that, if you get what I’m saying!
Cheers
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3 Replies
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If you have access to trapcode particular you could make a particle based grass field.
You could create a simple custom particle (keep it really small or your render hit will be huge – say 200×50 pixels) and animate it with the puppet tool swaying from side to side.
A quick particular recipe would be something like:These settings will depend entirely on your comp/layer size of course – for me in a 720×576 pal widescreen comp.
A box emitter with 11000 particles/s
Velocity=0
An emitter x size of 2570 Y size of 1 and Z of size of 4650 was satisfactory.
Set life of your particle duration to the length of the comp
Tip: Make sure your particle duration is the same length as your comp otherwise you will get grass blades randomly disappearing.Choose your custom particle.
set your layer time sampling to random – loop.Set a keyframe for particles/second at 11000 at frame 0 and move forwards to about 4:24 set a second keyframe at 11000. Then move forward 1 frame to 5 seconds and set a third one with a value of zero. This 5 seconds lead up gives your particle grass enough time to “grow”.
Another tip is to pre-render your particle layer to save render times.
Hope this helps.
Cheers,
Ben
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use CC HAIR it works well for flowing windy grass.. or use particle illusion 3.0 they have a grass particle ready to use
there is many other ways but cc hair is prolly the easiest and its right in Ae -
think you could get away with faking it using a turbulent displacement?
Darqlight on the Rise…
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