You can use the DepthGenerator node in NukeX to generate a depth map from your footage. The node uses information from a tracked camera to create a channel that displays variations in depth.
A depth map is an image that uses the brightness of each pixel to specify the distance between the 3D scene point and the virtual camera used to capture the scene.
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| A source image. | The generated depth map. |
DepthGenerator also allows you to output depth as normals and position passes, and create a Card node positioned in 3D space and displaced according to the depth channel.
Note that DepthGenerator can only create a depth map from a sequence, so you can’t use a still image.
Here's a quick overview of the workflow:
| 1. | Add DepthGenerator to your NukeX script. See Connecting DepthGenerator below. |
| 2. | Select the type of depth map you want to output, and whether to also output normals and position passes. See Selecting What to Output. |
| 3. | Analyze the depth values for your footage. See Analyzing the Depth. |
| 4. | Review and refine the results. See Refining the Results. |
| 5. | Use the results with other Nuke and NukeX nodes. See Using the Results. |