com.io7m.jcanephora.core

Class JCGLViewMatrices

java.lang.Object

com.io7m.jcanephora.core.JCGLViewMatrices

public final class JCGLViewMatrices
extends Object

Functions to produce view matrices.

Method Summary

Modifier and Type	Method and Description
static com.io7m.jtensors.core.unparameterized.matrices.Matrix4x4D	lookAtRH(com.io7m.jtensors.core.unparameterized.vectors.Vector3D camera, com.io7m.jtensors.core.unparameterized.vectors.Vector3D target, com.io7m.jtensors.core.unparameterized.vectors.Vector3D up) Calculate a view matrix representing a camera looking from the point camera to the point target.
static <A,B> com.io7m.jtensors.core.parameterized.matrices.PMatrix4x4D<A,B>	lookAtRHP(com.io7m.jtensors.core.unparameterized.vectors.Vector3D camera, com.io7m.jtensors.core.unparameterized.vectors.Vector3D target, com.io7m.jtensors.core.unparameterized.vectors.Vector3D up) Calculate a view matrix representing a camera looking from the point camera to the point target.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Method Detail

lookAtRH

public static com.io7m.jtensors.core.unparameterized.matrices.Matrix4x4D lookAtRH(com.io7m.jtensors.core.unparameterized.vectors.Vector3D camera,
                                                                                  com.io7m.jtensors.core.unparameterized.vectors.Vector3D target,
                                                                                  com.io7m.jtensors.core.unparameterized.vectors.Vector3D up)

Calculate a view matrix representing a camera looking from the point camera to the point target. target must represent the "up" vector for the camera. Usually, this is simply a unit vector (0, 1, 0) representing the Y axis.

The function assumes a right-handed coordinate system.

Parameters:

camera - The position of the viewer.

target - The target being viewed.

up - The up vector.

Returns:

The view matrix

lookAtRHP

public static <A,B> com.io7m.jtensors.core.parameterized.matrices.PMatrix4x4D<A,B> lookAtRHP(com.io7m.jtensors.core.unparameterized.vectors.Vector3D camera,
                                                                                             com.io7m.jtensors.core.unparameterized.vectors.Vector3D target,
                                                                                             com.io7m.jtensors.core.unparameterized.vectors.Vector3D up)

Calculate a view matrix representing a camera looking from the point camera to the point target. target must represent the "up" vector for the camera. Usually, this is simply a unit vector (0, 1, 0) representing the Y axis.

The function assumes a right-handed coordinate system.

Type Parameters:

A - A phantom type parameter, possibly representing a source coordinate system

B - A phantom type parameter, possibly representing a target coordinate system

Parameters:

camera - The position of the viewer.

target - The target being viewed.

up - The up vector.

Returns:

The view matrix