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]