de.javagl.jgltf.model

Interface CameraModel

All Superinterfaces:

ModelElement, NamedModelElement

All Known Implementing Classes:

DefaultCameraModel

public interface CameraModel
extends NamedModelElement

An interface for a camera that is attached to a NodeModel

Method Summary

Modifier and Type	Method and Description
float[]	computeProjectionMatrix(float[] result, java.lang.Float aspectRatio) Compute the projection matrix for this camera.
java.util.function.Supplier<float[]>	createProjectionMatrixSupplier(java.util.function.DoubleSupplier aspectRatioSupplier) Create the supplier of the projection matrix for this camera model.
CameraOrthographicModel	getCameraOrthographicModel() Returns the CameraOrthographicModel, or null if this is a perspective camera
CameraPerspectiveModel	getCameraPerspectiveModel() Returns the CameraPerspectiveModel, or null if this is an orthographic camera

Methods inherited from interface de.javagl.jgltf.model.NamedModelElement

getName

Methods inherited from interface de.javagl.jgltf.model.ModelElement

getExtensions, getExtras

Method Detail

getCameraOrthographicModel

CameraOrthographicModel getCameraOrthographicModel()

Returns the CameraOrthographicModel, or null if this is a perspective camera

Returns:

The CameraOrthographicModel

getCameraPerspectiveModel

CameraPerspectiveModel getCameraPerspectiveModel()

Returns the CameraPerspectiveModel, or null if this is an orthographic camera

Returns:

The CameraPerspectiveModel

computeProjectionMatrix

float[] computeProjectionMatrix(float[] result,
                                java.lang.Float aspectRatio)

Compute the projection matrix for this camera.

The result will be written to the given array, as a 4x4 matrix in column major order. If the given array is null or does not have a length of 16, then a new array with length 16 will be created and returned.

Parameters:

result - The result array

aspectRatio - An optional aspect ratio that should be used. If this is null, then the aspect ratio of the camera will be used.

Returns:

The result array

createProjectionMatrixSupplier

java.util.function.Supplier<float[]> createProjectionMatrixSupplier(java.util.function.DoubleSupplier aspectRatioSupplier)

Create the supplier of the projection matrix for this camera model.

The matrix will be provided as a float array with 16 elements, storing the matrix entries in column-major order.

Note: If the type of the camera that this CameraModel was created for is neither "perspective" nor "orthographic", then the supplier will print an error message and return the identity matrix.

Parameters:

aspectRatioSupplier - The optional supplier for the aspect ratio of the camera. If this is null, then the aspect ratio of the camera will be used.

Returns:

The supplier