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plant realisme

PostPosted: 08/23/2018, 9:22 pm
by DirectorMike
Hi Guys.
Working on a personal project and I'm compositing a 3D plant into a scene.
But the plant looks like plastic...

Was hoping to get some advice on how to make it look more organic when using E3D.


Screen Shot 2018-08-24 at 12.17.58.png


Re: plant realisme

PostPosted: 09/10/2018, 7:03 am
by ctarv419
There are three things I would suggest. First, make sure your lighting on your 3D object matches as closely as possible the lighting in your scene. It looks like you're working on that, especially in the one with the girl.

Second, I would make sure and get your color balance and focus sharpness as close as possible to the source scene. Often times the colors in a render look too clinical, they need some Curves applied to match the temperature of the set. Also, if depth of field was set to off your flower probably rendered at a pixel perfect sharpness, which is never going to look quite right in an photographed scene. Soften it up a tiny bit with something like a gaussian blur with a very low setting.

Third, and I think this will make the biggest difference, is to play with your Ambient Occlusion (AO) and Sub-Surface Scattering (SSS) settings in E3D. They're in the effects palette, not in the actual E3D interface. The best way to describe the visual effect of Ambient Occlusion is that it causes objects to cast small diffuse shadows on each other when they are close together in 3D space. It really helps to generate the illusion that the objects occupy physical space. And SSS is going to be where I think you can have the biggest difference. SSS simulates the effect of light partially penetrating a translucent surface. Most organic soft surfaces are partially translucent to some wavelengths of light, even if they appear opaque. You definitely want to turn that on and play with it to help your flower become more organic and less plastic. You'll have to make sure your lighting settings in your E3D render match your lighting on the physical set so that the simulation uses lighting that will mimic the actual scene.

One last thing, you might want to make a mask for the bottom of the flower where it meets the dirt and make it kind of roughly shaped and a slightly feathered edge. That will help it to attach correctly to the actual scene.

Hope this helps!

Re: plant realisme

PostPosted: 09/14/2018, 2:41 am
by star+circle
I second that: Sub-surface scattering is what will make the biggest difference here.