rtcSetGeometryTimeStepCount - Online Linux Manual Page

Section : 3
Updated :
Source :
Note : Embree Ray Tracing Kernels 3

NAME

rtcSetGeometryTimeStepCount − sets the number of time steps of the
  geometry

SYNOPSIS

#include <embree3/rtcore.h>

void rtcSetGeometryTimeStepCount(
  RTCGeometry geometry,
  unsigned int timeStepCount
);

DESCRIPTION

The rtcSetGeometryTimeStepCount

function sets the number of time steps for multi−segment motion blur (

timeStepCount

parameter) of the specified geometry (

geometry

parameter).

For triangle meshes (

RTC_GEOMETRY_TYPE_TRIANGLE

), quad meshes (

RTC_GEOMETRY_TYPE_QUAD

), curves (

RTC_GEOMETRY_TYPE_CURVE

), points (

RTC_GEOMETRY_TYPE_POINT

), and subdivision geometries (

RTC_GEOMETRY_TYPE_SUBDIVISION

), the number of time steps directly corresponds to the number of vertex buffer slots available (

RTC_BUFFER_TYPE_VERTEX

buffer type). For these geometries, one vertex buffer per time step must be specified when creating multi−segment motion blur geometries.

For instance geometries (

RTC_GEOMETRY_TYPE_INSTANCE

), a transformation must be specified for each time step (see

rtcSetGeometryTransform

For user geometries, the registered bounding callback function must provide a bounding box per primitive and time step, and the intersection and occlusion callback functions should properly intersect the motion−blurred geometry at the ray time.

EXIT STATUS

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