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

• Extending VkAccelerationStructureGeometryKHR:
  • VkAccelerationStructureDenseGeometryFormatTrianglesDataAMDX
• Extending VkPhysicalDeviceFeatures2, VkDeviceCreateInfo:
  • VkPhysicalDeviceDenseGeometryFormatFeaturesAMDX

New Enums

• VkCompressedTriangleFormatAMDX

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.