SAM 3D Body: Preview Skeleton:
The SAM3DBodyPreviewSkeleton node is designed to provide an interactive 3D visualization of a skeleton structure, focusing on the joints and bones without any mesh overlay. This node is particularly beneficial for AI artists and developers working with 3D models, as it allows for a clear and detailed examination of the skeletal framework. By utilizing a Three.js viewer, users can interact with the skeleton through rotation, zoom, and pan controls, offering a comprehensive view of the joint positions and rotations. This functionality is crucial for tasks that require precise adjustments or analysis of skeletal data, such as animation rigging or biomechanical studies. The node ensures that the skeleton data is prepared and presented in a user-friendly manner, making it accessible even to those with limited technical expertise.
SAM 3D Body: Preview Skeleton Input Parameters:
skeleton
The skeleton parameter is a required input that represents the skeleton data from the SAM3D Body. This data includes the joint positions and optionally the joint rotations, which are essential for visualizing the skeleton in the 3D viewer. The parameter is expected to be in a specific format that the node can interpret, ensuring that the skeleton is accurately represented in the visualization. The input should be carefully prepared to include all necessary joint information to avoid errors during the preview process.
SAM 3D Body: Preview Skeleton Output Parameters:
This node does not produce any direct output parameters. Instead, its primary function is to facilitate the visualization of the skeleton in an interactive 3D environment. The node's execution results in the creation of a temporary JSON file that stores the skeleton data, which is then used by the viewer to render the skeleton. This approach allows users to focus on the visual analysis of the skeleton without needing to handle additional output data.
SAM 3D Body: Preview Skeleton Usage Tips:
- Ensure that the skeleton data provided is complete and correctly formatted to avoid runtime errors. This includes verifying that all joint positions are included and, if available, joint rotations.
- Utilize the interactive controls in the 3D viewer to thoroughly examine the skeleton from different angles and perspectives, which can aid in identifying any discrepancies or areas for improvement in the skeletal structure.
SAM 3D Body: Preview Skeleton Common Errors and Solutions:
Skeleton has no joint_positions data
- Explanation: This error occurs when the skeleton data provided to the node does not include the necessary joint positions, which are crucial for rendering the skeleton in the 3D viewer.
- Solution: Verify that the input skeleton data contains a complete set of joint positions. Ensure that the data is correctly formatted and includes all required information before passing it to the node.
RuntimeError: Skeleton has no joint_positions data
- Explanation: This error message indicates that the node attempted to access joint positions from the skeleton data, but none were found, leading to a runtime error.
- Solution: Check the input data to confirm that joint positions are present and correctly specified. If using a tensor, ensure it is converted to a numpy array and then to a list for JSON serialization.
