Registered Extension Number

479

Revision

1

Ratification Status

Not ratified

Extension and Version Dependencies

VK_KHR_acceleration_structure
and
     VK_KHR_maintenance5
     or
     Vulkan Version 1.4

  • This is a provisional extension and must be used with caution. See the description of provisional header files for enablement and stability details.

Contact

Extension Proposal

VK_AMDX_dense_geometry_format

Other Extension Metadata

Last Modified Date

2025-07-10

IP Status

No known IP claims.

Contributors

  • Stu Smith, AMD

  • Josh Barczak, AMD

  • Carsten Benthin, AMD

  • David McAllister, AMD

Description

This extension adds the ability to build ray tracing acceleration structures from pre-compressed Dense Geometry Format geometry data.

New Structures

New Enums

New Enum Constants

  • VK_AMDX_DENSE_GEOMETRY_FORMAT_EXTENSION_NAME

  • VK_AMDX_DENSE_GEOMETRY_FORMAT_SPEC_VERSION

  • VK_COMPRESSED_TRIANGLE_FORMAT_DGF1_BYTE_ALIGNMENT_AMDX

  • VK_COMPRESSED_TRIANGLE_FORMAT_DGF1_BYTE_STRIDE_AMDX

  • Extending VkBufferUsageFlagBits2:

    • VK_BUFFER_USAGE_2_COMPRESSED_DATA_DGF1_BIT_AMDX

  • Extending VkGeometryTypeKHR:

    • VK_GEOMETRY_TYPE_DENSE_GEOMETRY_FORMAT_TRIANGLES_AMDX

  • Extending VkStructureType:

    • VK_STRUCTURE_TYPE_ACCELERATION_STRUCTURE_DENSE_GEOMETRY_FORMAT_TRIANGLES_DATA_AMDX

    • VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_DENSE_GEOMETRY_FORMAT_FEATURES_AMDX

Issues

None.

Examples

None.

Version History

  • Revision 1, 2025-07-10 (Stu Smith)

    • Initial revision.

See Also

No cross-references are available

Document Notes

For more information, see the Vulkan Specification.

This page is a generated document. Fixes and changes should be made to the generator scripts, not directly.

Copyright

Copyright 2014-2025 The Khronos Group Inc.

SPDX-License-Identifier: CC-BY-4.0