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07-04-2018, 06:14 AM
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#1
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Basic Member
Join Date: Dec 2017
Location: Essex
Posts: 9
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How can I fake algae/mould growing on cars/windows/signs??
Hey folks.
I'm working on a short post-apoc film and I'm trying to figure out the best way to fake that green alge/mould that grows on smooth surfaces that have been left exposed to the elements. I'm looking for a way to achieve this in-camera but am open to any vfx ideas as well.
Here's some real life photos of the effect I'm looking for;
From looking at some behind the scenes photos of The Girl With All the Gifts (2016), it seems there is some kind of spray or paint that can be used.
(more behind the photos here for those interested)
Does anyone know what this mixture might be? Can it be made from household materials or will I have to buy from some specialist shop?
Thanks for any ideas/help!
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07-04-2018, 09:50 AM
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#2
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IndieTalk Founder
Join Date: Jan 2003
Location: NYC
Posts: 11,385
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There's a brand of movie spray paint that washes off.
Some colors that may work: Dirt, Brown Rust, Nicotine, Dark Patina, Fuller's Earth, Dulling. Some darker colors below, some misted on, dulling, and dirt. Window screens or similar for some patterns. Layers.
http://www.hollywoodexpendables.com/...y-aging-11-oz/
You could combo in some cgi for the right look, color grade, etc.
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07-04-2018, 10:37 AM
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#3
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IndieTalk Founder
Join Date: Jan 2003
Location: NYC
Posts: 11,385
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They also make a dust you can wet and put on to look like mud.
I think Nicotine is your greenest color. But nothing is green green. But you can definitely get the look of the car 3rd row down in your pics.
https://shopbleedingartindustries.co...aging-mud-dust
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07-04-2018, 10:50 AM
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#4
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Basic Member
Join Date: Dec 2017
Location: Essex
Posts: 9
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Quote:
Originally Posted by indietalk
There's a brand of movie spray paint that washes off.
Some colors that may work: Dirt, Brown Rust, Nicotine, Dark Patina, Fuller's Earth, Dulling. Some darker colors below, some misted on, dulling, and dirt. Window screens or similar for some patterns. Layers.
http://www.hollywoodexpendables.com/...y-aging-11-oz/
You could combo in some cgi for the right look, color grade, etc.
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Quote:
Originally Posted by indietalk
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This could be big help - especially for the rusty effect. Thanks. I'll look into this.
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07-04-2018, 11:19 AM
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#5
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Basic Member
Join Date: Jun 2012
Location: www.youtube.com/mussonman
Posts: 3,374
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You could composite it in After Effects, for a cheaper alternative
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07-04-2018, 11:22 AM
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#6
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IndieTalk Founder
Join Date: Jan 2003
Location: NYC
Posts: 11,385
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Depends how many cars. A parking lot? AE. A car or two? Practical, AE, or combo. I could see the Dulling spray coming in real handy just to cut the shine of glass and metal, if the cars are newer. Patina too.
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07-04-2018, 11:48 AM
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#7
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Basic Member
Join Date: Mar 2018
Location: Los Angeles
Posts: 82
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I'd wrangle the catch-bag from a freshly used lawn-mower, mix up all that cut grass with cornstarch and water, and paint it on. It's just an idea, and I'd definitely test it first... that kind of thing either works, or doesn't.
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07-04-2018, 11:59 AM
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#8
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IndieTalk Moderator
Join Date: Jul 2013
Location: Maryland
Posts: 5,593
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I wonder if the instructions for making a gilly suit can be adapted for a vehicle
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07-04-2018, 12:22 PM
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#9
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Basic Member
Join Date: Nov 2016
Location: USA
Posts: 280
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I've never tried it but I've heard oatmeal (big 5 gallon bucket kind) with food coloring or sawdust soaked for a while in colored water or water colors or something.
Again, I don't know if it really works or not.
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07-04-2018, 12:55 PM
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#10
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IndieTalk Founder
Join Date: Jan 2003
Location: NYC
Posts: 11,385
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That's for chunky blood.
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07-04-2018, 12:59 PM
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#11
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Basic Member
Join Date: Nov 2016
Location: USA
Posts: 280
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Quote:
Originally Posted by indietalk
That's for chunky blood.
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Doh!
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07-04-2018, 01:46 PM
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#12
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Basic Member
Join Date: Dec 2017
Location: Essex
Posts: 9
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Quote:
Originally Posted by mussonman
You could composite it in After Effects, for a cheaper alternative
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Quote:
Originally Posted by indietalk
Depends how many cars. A parking lot? AE. A car or two? Practical, AE, or combo. I could see the Dulling spray coming in real handy just to cut the shine of glass and metal, if the cars are newer. Patina too.
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Great shout. I'm gonna have a play on AE tonight, see what I can come up with.
Quote:
Originally Posted by Kaiborg
I'd wrangle the catch-bag from a freshly used lawn-mower, mix up all that cut grass with cornstarch and water, and paint it on. It's just an idea, and I'd definitely test it first... that kind of thing either works, or doesn't.
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Quote:
Originally Posted by UneducatedFan
I've never tried it but I've heard oatmeal (big 5 gallon bucket kind) with food coloring or sawdust soaked for a while in colored water or water colors or something.
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These both sound like fun! I will do some experiments with these ideas and see how I get on!
Quote:
Originally Posted by sfoster
I wonder if the instructions for making a gilly suit can be adapted for a vehicle
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Interesting! Where can I find these instructions?
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