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1 Maya Tutorial Achieving Realism and Depth using Render Layers 7 on Fri Sep 24, 2010 2:44 am

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Step 61


��Blur Focus Distance�� is the main attribute that will help you adjust and animate the depth of field. Every step of the value represents different a color value of the grayscale zdepth image. So when you put a value for the attribute, only certain objects that correspond to that value in the grayscale range will be affected. Which values you will use depends on how wide is your grayscale range is, so it��s better to check first which values correspond best to your current situation.[You must be registered and logged in to see this image.]
Step 62


For the first frame, let��s say that you need the painting canvas to be in focus. The corresponding value for that would be 170, so put that in the ��Blur Focus Distance��.[You must be registered and logged in to see this image.]
Step 63


When the first frame is ready, you can start animating the depth of field effect. First you will need to expand the ��zdepth_adjustment�� layer, so you can see the effect attributes in the time line. Click on the arrow of the zdepth adjustment layer, then click the next arrow that shows up next to ��Effects��, and then expand the ��Lens Blur�� effect if it isn��t already expanded.[You must be registered and logged in to see this image.]
Step 64


Now click the stopwatch, next to the ��Blur Focus Distance�� attribute, so you can animate it.[You must be registered and logged in to see this image.]
Step 65


Drag the time slider to 2 seconds, and set the ��Blur Focus Distance�� to 147. This will create a new key at 2 seconds, and will bring the drawer with the glass object into focus.[You must be registered and logged in to see this image.]
Step 66


Now go to 3.5 seconds, and set the ��Blur Focus Distance�� to 90. This will keep the table and couches in focus.[You must be registered and logged in to see this image.]
Step 67


Go to the first frame again, but this time click the stopwatch for the ��Iris Radius�� attribute. This will determine how blurred the depth of field will be. The initial radius of 15 is fine for this frame.[You must be registered and logged in to see this image.]
Step 68


Now go to 4.5 seconds, and set the ��Iris Radius�� to 7, to make things look more natural.[You must be registered and logged in to see this image.]
Step 69


You are now ready to render the composition with all of the layers combined! First switch to the ��Project�� tab, so you can see your ��compositing_layers�� composition.[You must be registered and logged in to see this image.]
Step 70


Next, open the ��Render Queue�� tab, next to the layer panel. If you don��t see it press ‘Ctrl+Alt+0′.[You must be registered and logged in to see this image.]
Step 71


Click, hold, and drag the ��compositing_layer�� composition into the ��Render Queue��. You should see the output settings for the composition.[You must be registered and logged in to see this image.]
Step 72


Click on the ��Lossless�� setting in the ��Output Module�� attribute, to bring up the output file type settings.[You must be registered and logged in to see this image.]
Step 73


Click on the ��Format�� options menu and select ��Quick Time Movie��. You can use any format or compression settings that you want.[You must be registered and logged in to see this image.]
Step 74


Click on the ��Output To:�� attribute, and select where you want the composition to be saved. Then click ��Render��, wait until it renders out, and go to the output folder to view the final composition!![You must be registered and logged in to see this image.]]

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