RTCBufferType - Online Linux Manual Page

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

NAME

RTCFormat − specifies format of data in buffers

SYNOPSIS

#include <embree3/rtcore_ray.h>

enum RTCBufferType
{
  RTC_BUFFER_TYPE_INDEX            = 0,
  RTC_BUFFER_TYPE_VERTEX           = 1,
  RTC_BUFFER_TYPE_VERTEX_ATTRIBUTE = 2,
  RTC_BUFFER_TYPE_NORMAL           = 3,
  RTC_BUFFER_TYPE_TANGENT          = 4,
  RTC_BUFFER_TYPE_NORMAL_DERIVATIVE = 5,

  RTC_BUFFER_TYPE_GRID                 = 8,

  RTC_BUFFER_TYPE_FACE                 = 16,
  RTC_BUFFER_TYPE_LEVEL                = 17,
  RTC_BUFFER_TYPE_EDGE_CREASE_INDEX    = 18,
  RTC_BUFFER_TYPE_EDGE_CREASE_WEIGHT   = 19,
  RTC_BUFFER_TYPE_VERTEX_CREASE_INDEX  = 20,
  RTC_BUFFER_TYPE_VERTEX_CREASE_WEIGHT = 21,
  RTC_BUFFER_TYPE_HOLE                 = 22,

  RTC_BUFFER_TYPE_FLAGS = 32
};

DESCRIPTION

The RTBufferType

structure defines slots to assign data buffers to using the [rtcSetGeometryBuffer], [rtcSetSharedGeometryBuffer], and [rtcSetNewGeometryBuffer] API calls.

For most geometry types the RTC_BUFFER_TYPE_INDEX

slot is used to assign an index buffer, while the

RTC_BUFFER_TYPE_VERTEX

is used to assign the corresponding vertex buffer.

The RTC_BUFFER_TYPE_VERTEX_ATTRIBUTE

slot can get used to assign arbitrary additional vertex data which can get interpolated using the [rtcInterpolate] API call.

The RTC_BUFFER_TYPE_NORMAL

RTC_BUFFER_TYPE_TANGENT

, and

RTC_BUFFER_TYPE_NORMAL_DERIVATIVE

are special buffers required to assign per vertex normals, tangents, and normal derivatives for some curve types.

The RTC_BUFFER_TYPE_GRID

buffer is used to assign the grid primitive buffer for grid geometries (see [RTC_GEOMETRY_TYPE_GRID]).

The RTC_BUFFER_TYPE_FACE

RTC_BUFFER_TYPE_LEVEL

RTC_BUFFER_TYPE_EDGE_CREASE_INDEX

RTC_BUFFER_TYPE_EDGE_CREASE_WEIGHT

RTC_BUFFER_TYPE_VERTEX_CREASE_INDEX

RTC_BUFFER_TYPE_VERTEX_CREASE_WEIGHT

, and

RTC_BUFFER_TYPE_HOLE

are special buffers required to create subdivision meshes (see [RTC_GEOMETRY_TYPE_SUBDIVISION]).

The RTC_BUFFER_TYPE_FLAGS

can get used to add additional flag per primitive of a geometry, and is currently only used for linear curves.

EXIT STATUS