btVector3 dot is a function that calculates the dot product of two vector objects of the Bullet Physics library. This function can be used to determine the angle between two vectors or to project one vector onto another.
Example 1: Calculating the angle between two vectors
btVector3 vectorA(1,2,3); btVector3 vectorB(4,5,6); float angle = acos(vectorA.dot(vectorB) / (vectorA.length() * vectorB.length())); // The result will be the angle between vectorA and vectorB in radians
Example 2: Projecting one vector onto another
btVector3 vectorA(1,2,3); btVector3 vectorB(4,5,6); btVector3 projection = vectorA.dot(vectorB) * vectorB; // The result will be a vector representing the projection of vectorA onto vectorB
This function is part of the Bullet Physics library, which is an open-source physics engine primarily used for game development.
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