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Need help with blur effect
show user profile  magarlick
Dear all

I am trying to apply a blur effect to specific parts of an animation. Very simplistically the scene involves a sphere getting bigger as the camera approaches it. All I want is for everything outside the sphere to be blurred, not the sphere itself.

For frame 1, I created a simple mask image: black for the sphere, white for everything else. I added this in the Pixel Selections roll-out of the blur dialogue, under Map Mask. This works well: after rendering the blur is applied where I want it. But the camera is moving. So I tried animating the black sphere on a white BG and saving this as an avi. Then I added this to the Pixel Selection Map Mask instead, but it doesn't have the desired effect. Only the first frame in this masking animation is ever used. As the scene progresses it never uses the other frames in the Mask animation, so wrong parts of the scene get blurred.

Surely there is a way to do what I want?

Kind regards,

Mark Garlick Words and Pictures Ltd
read 373 times
7/9/2013 11:19:59 AM (last edit: 7/9/2013 11:19:59 AM)
show user profile  herfst1
For post production you can use zdepth to mask the background (render elements-> zdepth) which you can apply a gaussian blur effect to. But I dunno if you can automate that in AE, pretty sure you can in Nuke though.

Else, Vray has a dof effect for the camera. Just tick it. Note: it'll only work well if your camera's focal point is in the right position.

Dunno about mental ray.
read 361 times
7/9/2013 11:33:20 AM (last edit: 7/9/2013 11:33:20 AM)
show user profile  magarlick
Thanks, but I found the solution. I saved the Map Mask animation as a .mov file instead of an .avi and it now works as intended.

Mark Garlick Words and Pictures Ltd
read 357 times
7/9/2013 11:46:46 AM (last edit: 7/9/2013 11:46:46 AM)
show user profile  Westcoast13
herfst, i think DOF in AE using zdepth is only via third party plugin's.

My Turbosquid Area

read 332 times
7/10/2013 4:27:53 PM (last edit: 7/10/2013 4:27:53 PM)
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