nv::index::IHeight_field_subset::Data_tile_buffer_info Struct Reference

Definition of internal buffer information. More...

#include <iheight_field_subset.h>

Public Attributes
mi::Float32 *	data
	Raw memory pointer to internal elevation values. More...
mi::math::Vector_struct< mi::Float32, 3 > *	normals
	Raw memory pointer to internal normals values. More...
mi::Size	size
	Number of values in tile. More...
mi::Sint32	gpu_device_id
	GPU device id if the buffer is located on a GPU device, -1 to indicate a host buffer. More...

Detailed Description

Definition of internal buffer information.

The internal buffer information can be queried using the access_tile_data_buffer() method to gain access to the internal buffer data for direct write operations. This enables zero-copy optimizations for implementations of, e.g., IDistributed_compute_technique where large parts of the data-subset buffer can be written directly without going through the write() methods.

Note

The internal layout of the buffer of a height-field data tile is in a linear IJK/XYZ layout with the I/X-component running fastest.

Member Data Documentation

data

mi::Float32* nv::index::IHeight_field_subset::Data_tile_buffer_info::data

Raw memory pointer to internal elevation values.

gpu_device_id

mi::Sint32 nv::index::IHeight_field_subset::Data_tile_buffer_info::gpu_device_id

GPU device id if the buffer is located on a GPU device, -1 to indicate a host buffer.

normals

mi::math::Vector_struct<mi::Float32, 3>* nv::index::IHeight_field_subset::Data_tile_buffer_info::normals

Raw memory pointer to internal normals values.

size

mi::Size nv::index::IHeight_field_subset::Data_tile_buffer_info::size

Number of values in tile.

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The documentation for this struct was generated from the following file:

• iheight_field_subset.h