![]() Use the background image as the image texture and plug it into the base color in the principled bsdf.3D rendering software can help architects and design professionals to bring their three-dimensional models to life with realistic-looking images or videos.Tab into edit mode, press A to select everything and press U and choose "project from view".To to the camera view by pressing zero on the numpad.Go to the shading workspace and select the shadow catcher.Related content: How the light path node works in Blenderįollow these steps to set up the shadow catcher material: ![]() This will give a stretched result from all angles except for the camera. To setup the shadow catcher material we can use the background as the texture for our material that we UV project from the camera's perspective. But for simpler setups, this step is optional. This is required if we want to have reflections cast from the surface of the shadow catcher in our scene. We can create a material for our shadow catcher. Pixabay image used for sample Shadow catcher material Then we will add a couple of objects that will cast shadows on the ground next to the sheep in the scene. Related content: More than 30 Blender modeling tools explainedįor example, we will use this scene below and create a shadow catcher that roughly matches the ground. The better the shadow catcher object and the background are aligned, the better your result will be in the end.įor a test scene we can also just create a plane that will catch the shadows in our scene. If your background is an outdoor scene with some uneven ground, it is a good idea to rough out a floor for the ground that roughly follows the curvature of the ground. The model you make will determine where shadows will be cast. If your background footage is a room, it is a good idea to model the walls, floor and possibly ceiling depending on your lighting setup. You should model this to roughly fit the background. This is the object our shadows will be cast on to. Next, we'll need the shadow catcher itself. Keep in mind that if you're overlaying your render onto an animation rather than a still image, you'll need to motion track your footage instead. This will help with matching the perspective and focal length of our background as well as setting up the base scene in Blender. To make this process more exact we can use another application and Blender add-on called fSpy. This can be a difficult process if the camera was rotated when the footage was shot and depending on what we know about the camera and its settings. Related content: How to move the camera in Blender It can also be a good idea to add one or more primitive objects to our scene as reference to match the footage against, or we can use the objects we intend to have in the finished scene. Expand the view lock section and check "camera to view" to have the cameras position follow your navigation.Īlso keep the camera properties open so that you can adjust the focal length of the camera object. We will also want to expand the right-side properties panel by pressing N and going to the view tab. For this it is a good idea to go into camera view with numberpad 0 or by pressing the camera widget icon in the top right corner of the 3D viewport. We can now adjust the cameras position and focal length so that the 3D objects fit nicely with the background. Later we can take the same image and add it to the compositor and composite our 3D objects on top of it. Next open the section and go to Add Image > Open and select your background. We can do this by select our camera, going to the Object Data Properties > Enable Background Images. To help with the process we can set the background we are overlaying our render onto as the background of the camera. Next, we will align our camera so that it roughly matches the perspective of the background. Let's start by aligning the camera before we move on to creating the shadow catcher. Composite the shadow catcher and objects over the background.Match the lighting of the scene with the light of the background. ![]() To create a shadow catcher in Blender using Cycles we will go through an example following these steps. How do you make a shadow catcher in Blender? We can also model our shadow catchers so that they roughly fit the scene allowing for more accurate shadows. Shadow Catchers are commonly used when compositing a 3D render over a photo or footage as they allow us to capture an objects shadow without blocking the background. In blender there are a couple common methods for creating a shadow catcher, one method is just to toggle an object's ray visibility so that it only receives shadows, but the main method is just to use Blender's built-in shadow catcher system. In this example, the plane catching the shadow is the shadow catcher. ![]()
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