![]() Higher values result in the tighter fitting of control points to their targets ICP Iterations Increasing it will lead to tighter fitting but can mesh smoothness can suffer Control Points Weightĭefines the influence of control points on the wrapping process. This weight defines the strength of fitting of the base mesh to the target surface. This weight defines how rigid the base mesh is ICP The better the wrapping quality, but at the same time, the bigger the computation time Smoothness A larger value leads to better model flexibility but comes with a cost in terms of robustness and speed The file name of Neutral Reference mesh Blendshape ReferencesĪ list of file names of Blendshape References Num Componentsĭefines how much information will be taken from the reference meshes. If Auto Compute is off, starts the wrapping process in the preview window Neutral Reference If set, the node will be recomputed each time a parameter or input data is changed Compute The algorithm will still be able to wrap an expression with only one eye closed. if Blendshape References contain an expression with both-eyes-closed, then there is no need to decompose it into left-eye-closed and right-eye-closed. It’s not mandatory that Blendshape References are decomposed by muscle groups as you would do for rigging. Is a set of blendshapes (FACs) of your reference character.Īll Blendshape References should be aligned (stabilized) to the Neutral Reference and have the same scale. If this reference mesh has a different orientation or scale than the base mesh, you can turn on the Use Rigid Alignment parameter to automatically align it with the base mesh. Is a neutral facial expression of a reference character. Reference meshes include: Neutral Reference All reference meshes should have the same topology as a the base mesh. For example, by looking at the references it understands that eyelids can be stretched in the vertical direction much more than in the horizontal, and it doesn’t penalize vertical stretching during wrapping.Īs a result BlendWrapping node reduces the need for cleanup to a minimum.Īs already mentioned, BlendWrapping needs a set of examples provided by a user called reference meshes. With BlendWrapping node you drastically simplify the wrapping of other characters by re-using information from previously made characters, even though the characters are very different.īlendWrapping node looks at user-provided references to analyze how different parts of a face can be deformed. Let’s assume that we have already wrapped and carefully cleaned up a set of facial expressions for one character. Suppose we need to wrap facial expressions of tens of different characters. It can be used for different types of objects, but the most common application is facial expressions (FACs). While this assumption works in many cases, it fails for areas like eyelids or lips where a surface can be significantly stretched in one direction but not in the other.īlendWrapping overcomes this limitation. This method uses a set of pre-existing wrapped mesh references provided by a user to analyze how different parts of the base mesh can be deformed, and thus, increase wrapping quality.Ī standard Wrapping assumes that a base mesh can only be deformed in a uniform way. It’s more robust and requires much fewer control points than standard Wrapping. Python Scripting For Parameter ExpressionsīlendWrapping is an example-based wrapping method that can handle extreme mesh deformations.
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