/// <summary>
/// Copys all relevant values of the given camera to the current camera sample.
/// </summary>
/// <param name="camera">The camera to copy.</param>
/// <param name="convertTransformToUsd">
/// If true, converts the transform matrix from left handed(Unity) to right handed(USD). If
/// you're unsure about this parameter, it should be left to the default value of true.
/// </param>
public void CopyFromCamera(UnityEngine.Camera camera, bool convertTransformToUsd = true)
{
// GfCamera is a gold mine of camera math.
pxr.GfCamera c = new pxr.GfCamera();
// Setup focalLength & apertures.
c.SetPerspectiveFromAspectRatioAndFieldOfView(camera.aspect, camera.fieldOfView,
pxr.GfCamera.FOVDirection.FOVVertical);
clippingRange = new UnityEngine.Vector2(camera.nearClipPlane, camera.farClipPlane);
focalLength = c.GetFocalLength();
horizontalAperture = c.GetHorizontalAperture();
verticalAperture = c.GetVerticalAperture();
projection = camera.orthographic
? ProjectionType.Orthographic
: ProjectionType.Perspective;
var tr = camera.transform;
transform = UnityEngine.Matrix4x4.TRS(tr.localPosition,
tr.localRotation,
tr.localScale);
if (convertTransformToUsd)
{
ConvertTransform();
}
}
/// <summary>
/// Copyies the current sample values to the given camera.
/// </summary>
public void CopyToCamera(UnityEngine.Camera camera, bool setTransform)
{
// GfCamera is a gold mine of camera math.
pxr.GfCamera c = new pxr.GfCamera(UnityTypeConverter.ToGfMatrix(transform),
projection == ProjectionType.Perspective ? pxr.GfCamera.Projection.Perspective
: pxr.GfCamera.Projection.Orthographic,
this.horizontalAperture,
this.verticalAperture,
this.horizontalApertureOffset,
this.verticalApertureOffset,
this.focalLength);
camera.orthographic = c.GetProjection() == pxr.GfCamera.Projection.Orthographic;
camera.fieldOfView = c.GetFieldOfView(pxr.GfCamera.FOVDirection.FOVVertical);
camera.aspect = c.GetAspectRatio();
camera.nearClipPlane = clippingRange.x;
camera.farClipPlane = clippingRange.y;
if (camera.orthographic)
{
// Note that USD default scale is cm and aperture is in mm.
// Also Unity ortho size is the half aperture, so divide USD by 2.
camera.orthographicSize = (verticalAperture / 10.0f) / 2.0f;
}
if (setTransform)
{
var tr = camera.transform;
var xf = transform;
UnityTypeConverter.SetTransform(xf, tr);
}
}
/// <summary>
/// Copyies the current sample values to the given camera.
/// </summary>
public void CopyToCamera(UnityEngine.Camera camera)
{
// GfCamera is a gold mine of camera math.
pxr.GfCamera c = new pxr.GfCamera(UnityTypeConverter.ToGfMatrix(transform));
camera.orthographic = c.GetProjection() == pxr.GfCamera.Projection.Orthographic;
camera.fieldOfView = c.GetFieldOfView(pxr.GfCamera.FOVDirection.FOVVertical);
camera.aspect = c.GetAspectRatio();
camera.nearClipPlane = c.GetClippingRange().GetMin();
camera.farClipPlane = c.GetClippingRange().GetMax();
var tr = camera.transform;
var xf = transform;
UnityTypeConverter.SetTransform(xf, tr);
}
