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.TH "rtcGetGeometryTransformFromScene" "3" "" "" "Embree Ray Tracing Kernels 4"
.hy
.SS NAME
.IP
.nf
\f[C]
rtcGetGeometryTransformFromScene - returns the interpolated instance
  transformation for the specified time
\f[R]
.fi
.SS SYNOPSIS
.IP
.nf
\f[C]
#include <embree4/rtcore.h>

void rtcGetGeometryTransformFromScene(
  RTCScene scene,
  unsigned int geomID,
  float time,
  enum RTCFormat format,
  void* xfm
);
\f[R]
.fi
.SS DESCRIPTION
.PP
The \f[V]rtcGetGeometryTransformFromScene\f[R] function returns the
interpolated local to world transformation (\f[V]xfm\f[R] output
parameter) of an instance geometry specified by its geometry ID
(\f[V]geomID\f[R] parameter) of a scene (\f[V]scene\f[R] parameter) for
a particular time (\f[V]time\f[R] parameter in range [0,1]) in the
specified format (\f[V]format\f[R] parameter).
.PP
Possible formats for the returned matrix are:
.IP \[bu] 2
\f[V]RTC_FORMAT_FLOAT3X4_ROW_MAJOR\f[R]: The 3×4 float matrix is laid
out in row-major form.
.IP \[bu] 2
\f[V]RTC_FORMAT_FLOAT3X4_COLUMN_MAJOR\f[R]: The 3×4 float matrix is laid
out in column-major form.
.IP \[bu] 2
\f[V]RTC_FORMAT_FLOAT4X4_COLUMN_MAJOR\f[R]: The 3×4 float matrix is laid
out in column-major form as a 4×4 homogeneous matrix with last row equal
to (0, 0, 0, 1).
.PP
In contrast to the \f[V]rtcGetGeometryTransform\f[R] function, the
\f[V]rtcGetGeometryTransformFromScene\f[R] function can get used during
rendering inside a SYCL kernel.
.SS EXIT STATUS
.PP
On failure an error code is set that can be queried using
\f[V]rtcGetDeviceError\f[R].
.SS SEE ALSO
.PP
[RTC_GEOMETRY_TYPE_INSTANCE], [rtcSetGeometryTransform],
[rtcGetGeometryTransform]