Lecture 15 - Influence Objects

Lecture 15 - Influence Objects - CGS 3034 Lecture 15...

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CGS 3034 – Lecture 15 Influence Objects The Cure for Flabby Arms Introduction to Computer Aided Animation Instructor: Brent Rossen
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Overview – Influence Objects Influence Objects Solving a Smooth Bind Issue Creating Influence Objects Mirroring Influence Objects
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Smooth Bind Problems Smooth binding tends to give spaghetti elbows Open up the Smurf Rigged under lecture 16 Turn off IK so we can mess with the Smurf's elbow directly In the L_arm_ctrl set ik fk blend to 0 Bend the left elbow using the manipulator by about -100 degrees and you'll see the spaghetti elbow in action Set the rotate back to 0
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Spaghetti Elbow
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Influence Objects Let's do something about that, we'll ad Influence Objects to the bind Influence Objects: allow you to control how skin weights are distributed on a localized basis. They are a more intuitive system for creating muscle like behavior.
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Model Elbow Influence Object Let's add some geometry to the elbow area, this will be our elbow bone Create a sphere Move it to the elbow area Reshape it so it looks more like an elbow by scaling and manipulating it's vertexes or CVs
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Elbow Influence Shape
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Rename this object L_elbow_influence
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Lecture 15 - Influence Objects - CGS 3034 Lecture 15...

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