Photoshop 1.25 [z-depth]

“Using the Lens Blur filter (with Z-Depth)”

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  1. If you do not yet have a z-depth channel from your rendering, please view V-Ray 8.31 [z-depth] to create one.
  2. Open your rendered file (or finished , post-processed collage image). Open your Z-Depth rendered channel from Rhino (in a new window). You can do this by navigating to File>Open...
  3. On the z-Depth image, use the rectangular marquee tool to select the whole image or press ctrl+a. Now copy the image using Edit>Copy.
  4. Switch to the final image opened in Step 1. Duplicate the primary layer by right clicking on it and selecting “Duplicate Layer” from the context menu that appears. Drag this copy below the primary layer.
  5. On the primary layer of your rendered file, click the Add Layer Mask button at the bottom of the Layers window. Shown in red circle to the right.[Premium Content - Login] [Membership Options]
    • Note: If you have multiple layers, Use File>Save As... to save a new .jpg or .png of your finished work. You will want to perform the Z-Depth blur only on a finished, single-layered image.
  6. Now, select the Layer Mask on your primary layer and click on the channels tab within the layer window. Turn on the “Layer 0 Mask” channel (or similar name depending on your original layer name) and turn off the other channels.
  7. With the “Layer 0 Mask” channel selected, navigate to Edit>Paste to paste in your Z-Depth image.
  8. Now switch back to the layers tab of the layers window. Navigate to Filter>Blur>Lens Blur...
  9. In the Lens Blur dialog box, change the Depth Mask Source to be “Layer Mask”
  10. Now click on your image where you would like the image to be in focus.
  11. You can adjust the Radius value under the Iris section to increase or decrease the amount of the image that is in focus.
    • Note: This is designed to mimic the depth of field in a physical camera and can have a great influence on the photorealistic quality of the computer rendering.