VK_KHR_uniform_buffer_standard_layout

Other Extension Metadata

Last Modified Date

2019-01-25

Contributors

• Graeme Leese, Broadcom
• Jeff Bolz, NVIDIA
• Tobias Hector, AMD
• Faith Ekstrand, Intel
• Neil Henning, AMD

Description

This extension enables tighter array and struct packing to be used with uniform buffers.

It modifies the alignment rules for uniform buffers, allowing for tighter packing of arrays and structures. This allows, for example, the std430 layout, as defined in GLSL to be supported in uniform buffers.

Promotion to Vulkan 1.2

All functionality in this extension is included in core Vulkan 1.2, with the KHR suffix omitted. The original type, enum, and command names are still available as aliases of the core functionality.

New Structures

• Extending VkPhysicalDeviceFeatures2, VkDeviceCreateInfo:
  • VkPhysicalDeviceUniformBufferStandardLayoutFeaturesKHR

New Enum Constants

• VK_KHR_UNIFORM_BUFFER_STANDARD_LAYOUT_EXTENSION_NAME
• VK_KHR_UNIFORM_BUFFER_STANDARD_LAYOUT_SPEC_VERSION
• Extending VkStructureType:
  • VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_UNIFORM_BUFFER_STANDARD_LAYOUT_FEATURES_KHR

Version History

• Revision 1, 2019-01-25 (Graeme Leese)
  • Initial draft