How to Add Depth of Field in BLENDER

Here’s a quick Blender Tutorial  on Camera Depth of Field,   also referred to as “Background Blur.” Depth  of field is the concept of the camera being   in focus at a certain distance. What is behind  or in front of that distance will be out of   focus and blurry. Just how blurry the effect  is can be adjusted. Blender can create this   effect in both Eevee and Cycles. Here’s how. To create Depth of Field, we need a camera in   our scene. This scene I have set up is a monkey  (obviously), a plane with a bunch of grass on it,   a single tree in the background and an HDRI. The  grass I created with a single click using Scatter   which is pretty much my favorite Blender addon  ever – I’ve got a video all about it. And the   HDRI I simply dropped in from my HDRI library  which I have a video on how to setup for free.  I set up the camera so that some blades of  grass will be right in front of it, the tree   will be in the distant background and the camera  will primarily be focused on the Suzanne monkey.  With the camera selected, we go to the camera  properties panel – click the camera icon right   here to get there. I’m in Cycles by the way  but this works in Eevee the exact same way.   Find the area labeled “Depth of Field.” Check it on and open up the options. Depth of   Field gives the camera a distance to focus at. We  can manually choose how far away the camera should   be focused but that will probably take a lot of  trial and error. The easier option if we have   a specific object or character we are trying to  focus on is to use the “Focus Object” option. We   can choose the object we want to focus on from the  drop down box. Or, we can use the eyedropper tool   to select the object. Let’s select the Suzanne. Notice nothing is visible in object mode.   The Depth of Field will only display in  material preview mode, render preview   mode and of course in the final render. This is what we get by default. The grass   is a little blurry in the foreground and the tree  and HDRI are a little blurry in the background.   To adjust the strength of the Depth of Field,  we are going to go down to the aperture settings   and change the “F-Stop.” An F-Stop is a  measurement of the opening of the aperture   in a real camera and Blender simulates the  operation of a real camera surprisingly well.  Lowering the F-stop value will increase  the blurriness of the Depth of Field.   Increasing the F-Stop value will  decrease the intensity of the blur.  The rest of these settings I rarely touch,  they’re a little advanced, but they can be useful   to create what’s called Bokeh in photography. Bokeh is essentially the quality of the blur   and it also refers to the blurry effect you see in  background lights. Lowering the ratio will cause   a horizontal distortion of the blur. And raising  it above one will give it a vertical distortion.  The blades simulate the number of blades on  a real camera aperture. More blades gives   a smoother blur and the rotation setting I can  barely see any effect from playing around with.  For still renders, that’s practically  all you need to know about Depth of Field   or background blur in Blender. But for  animations, here are a few more tricks.  First of all, these settings,  like the F-stop, can be animated.   So we could have the camera start off either  in or out of focus and then transition.   Just set the keyframes on the values for when  we want the transitions to start and end. I’ll   link to a video on keyframe animation in Blender  if you need some help with how all that works.  The second cool thing we could do is  transition the focus point of the depth of   field from one object or character to another. The best way to do this is with an empty.   “Shift+A” to add an empty object into the  scene and place it where we want the camera’s   focus to begin. Let’s make the empty the focus  object in the camera’s depth of field settings.  Place a keyframe on the empty’s location at the  frame where we want the transition to begin.  Then, go to the frame in the animation  when we want the transition to end.   Move the empty to the new area of focus and then  place a new keyframe on the empty’s location.  This will cause a smooth transition of focus from  the first location of the empty to the second.   Very cool effect that is used  all the time in movies and TV.  And by the way, these realistic characters were  created very easily with Human Generator – which   is probably my second favorite Blender  addon after Scatter. Links to both are   in the description. Give the video a like and  consider subscribing. Thank you and Stay Creative!

Channel: Brandon's Drawings

Views: 35,979

Keywords: background blur in blender, blender 3.2, blender 3.2 tutorial, blender 3d, blender 3d tutorial, blender background blur, blender camera blur, blender camera blurry, blender camera settings, blender depth of field, blender depth of field cycles, blender depth of field eevee, blender depth of field tutorial, blender dof, blender tip, blender tips, blender tutorial, blender tutorial 2022, blender3d, blender3d tutorial, depth of field, depth of field in blender, dof in blender

Id: HNCiQNn4Swg

Length: 4min 3sec (243 seconds)

Published: Sun Jul 31 2022