rtcGetGeometryTransformFromScene(3)

  NAME

        rtcGetGeometryTransformFromScene - returns the interpolated instance
          transformation for the specified time

  SYNOPSIS

        #include <embree4/rtcore.h>

        void rtcGetGeometryTransformFromScene(
          RTCScene scene,
          unsigned int geomID,
          float time,
          enum RTCFormat format,
          void* xfm
        );

  DESCRIPTION
The rtcGetGeometryTransformFromScene function returns the interpolated local to world transformation (xfm output parameter) of an instance geometry specified by its geometry ID (geomID parameter) of a scene (scene parameter) for a particular time (time parameter in range [0, 1]) in the specified format (format parameter).

Possible formats for the returned matrix are:

•   RTC_FORMAT_FLOAT3X4_ROW_MAJOR: The 3×4 float matrix is laid out in row-major form.

•   RTC_FORMAT_FLOAT3X4_COLUMN_MAJOR: The 3×4 float matrix is laid out in column-major form.

•   RTC_FORMAT_FLOAT4X4_COLUMN_MAJOR: 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).

In contrast to the rtcGetGeometryTransform function, the rtcGetGeometryTransformFromScene function can get used during rendering inside a SYCL kernel.

  EXIT STATUS
On failure an error code is set that can be queried using rtcGetDeviceError.

  SEE ALSO
[RTC_GEOMETRY_TYPE_INSTANCE], [rtcSetGeometryTransform], [rtcGetGeometryTransform]