I need to calculate what percentage to scale each layer based on it’s distance from zero in z-space. I basically need to have the final image match a PSD I’m using, even though each object is now on it’s own 3d plane in z-space.
Is there an equation to figure that out?
That questions a bit over my head, but i’m wondering if you could use camera projection to get what you’re looking for?
I don’t think so. It’s not really a hallway type effect that I’m trying to create. All the layers are perpendicular to the camera. I just need to get the parallax between each plate, yet keep the same lockups to the PSD.
Anyone else had to do this before?
Ok I did a little calculating. It’s not 100% exact but it’s close enough to work.
I’m using a preset 35mm camera, so I don’t know if this is constant with every other lens measure.
Take one of your objects, push it back in z space as far as you want it to be. Then use this equation to figure out how much to scale it so it matches the flat artwork:
s = (zDepth/18.5)+100
Explaination:
“s” = the value you plug into the scale property
“zDepth” = the value for the objects z-position
“18.5” = just the constant that I found that works for 35mm
Then add 100 since the equation only figured out the change from 100%
Hope that helps.
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