Function makeQuadMesh

tutorials/multi_instanced_geometry/scene.cpp:75–101

* Create a quad mesh geometry from the given mesh. */

 * Create a quad mesh geometry from the given mesh.
 */
RTCGeometry makeQuadMesh(RTCDevice device, const Mesh& mesh)
{
  RTCGeometry geom = rtcNewGeometry(device, RTC_GEOMETRY_TYPE_QUAD);

  const unsigned int timeStep = 0;

  rtcSetSharedGeometryBuffer(geom, 
                             RTC_BUFFER_TYPE_VERTEX, 
                             timeStep, 
                             RTC_FORMAT_FLOAT3, 
                             mesh.vertices, 
                             0, 
                             3*sizeof(float), 
                             mesh.numVertices);

  rtcSetSharedGeometryBuffer(geom, 
                             RTC_BUFFER_TYPE_INDEX, 
                             timeStep, 
                             RTC_FORMAT_UINT4, 
                             mesh.quadIndices,
                             0, 
                             4*sizeof(unsigned int), 
                             mesh.numQuads);

  rtcCommitGeometry(geom);
  return geom;
}

/*
 * Add a mesh to a scene.