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Matrix

CreateWorld

static Matrix CreateWorld( Vector3 position, Vector3 forward, Vector3 up )

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Description

The Matrix.CreateWorld method constructs a world matrix that defines the position and orientation of an object in 3D space. This matrix is essential for transforming objects from local space to world space, allowing them to be correctly positioned and oriented within a scene.

The method takes three parameters:

position: A Vector3 representing the position of the object in world space.
forward: A Vector3 representing the forward direction of the object. This vector should be normalized.
up: A Vector3 representing the up direction of the object. This vector should also be normalized and typically orthogonal to the forward vector.

The method returns a Matrix that can be used to transform vertices from local space to world space.

Usage

To use the CreateWorld method, ensure that the forward and up vectors are normalized and orthogonal to each other. This ensures that the resulting matrix is valid and correctly represents the object's orientation in 3D space.

Use the resulting matrix to transform object vertices or to set the world transformation for rendering.

Example

// Example usage of Matrix.CreateWorld
Vector3 position = new Vector3(10, 5, 3);
Vector3 forward = new Vector3(0, 0, 1); // Assuming forward is along the Z-axis
Vector3 up = new Vector3(0, 1, 0); // Assuming up is along the Y-axis

Matrix worldMatrix = Matrix.CreateWorld(position, forward, up);

// Use worldMatrix to transform vertices or set as the world transformation for rendering

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