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Facebook 3D photo - render isometric view with depth of field #FOV #DOF

July 18, 2019 at 1:05pm

Facebook 3D photo - render isometric view with depth of field #FOV #DOF

July 18, 2019 at 1:05pm

Lets start with the basic 2D render and the setup.

my setup.pngCamera setup
  1. First thing to do is to create a camera (object mode, sight option on the horizontal toolbar)
  2. This camera is added to the objects list and is by default locked. I'm used to lock the camera so I don't accidentally change it with a simple mouse movement from the viewport.
  3. The "field of view" option in the camera's properties panel is usually 35 which gives a pleasant perspective to most of the renders I use, but in this case i want this cartoonish isometric view, so the lowest perspective that can be set is 10. This is also called FOV=10
  4. The "depth of field" gives this nice focus blur to the render. Here are two parameters to play with, Focus offset and Size. The focus offset can be picked just like in a digital camera with the target picker tool (bullseye icon). Select the focus picker icon and click on the object in your scene that you want to be sharp/focused on. The size is basically the intensity of the blur you can try different values, simply drag the input-field with your mouse up/down or insert a numeric value.
Render Image
  1. From the Render tab I changed only the resolution to 1600x1200 px
  2. Set quality to Ultra
  3. Download image and name it image.png (important for FB 3D photo only)
Export as 3D photon for Facebook
  1. From the Export tab select "Facebook 3D photo"
  2. leave the resolution to 1600x1200 pixels
  3. download zip file and unpack it
  4. the zip contains two files the image render file (image.png) and a depth file (image_depth.png)

Notice that the image.png from the 3D photo is not blurred at all. This feature is disabled in vectary by default but there is a workaround.

Upload to Facebook

  1. create a new Facebook post (empty)
  2. drag n drop the first image.png you have created from the render tab (with DOF and effects) to the new FB post (wait for upload)
  3. drag n drop the depth map image_depth.png from the zip file to the same post (wait for upload)
  4. Facebook starts automatically merge those two source files into a 3D image
  5. once its done you can add text etc.
creating 3d photo.pngThe final 3D post looks like this.
  • image is blurred in the background and focus on the plane
  • the depth map is tweaked a little (will explain later)
plane blurred.gif

July 18, 2019 at 2:13pm

This is the image.png from the "render tab" with Depth Of Field rendered at ultra 1600x1200 pixels.

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This is the slightly retouched depth map. I had to whiten and blur the space between the wigs, so the cross-wires were not doing artifacts in FB3Dpost.

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